US3049304A - Portable hose spraying apparatus - Google Patents

Description

Aug. 14, 1962 v. R. sEARs 3,049,304

PORTABLE HOSE SPRAYING APPARATUS Filed May 18, 1960 3 Sheets-Sheet l 'I` Aug. 14, 1962 v. R. SEARS PORTABLE HOSE SPRAYING APPARATUS 3 Sheets-Sheet 2 Filed May 18, 1960 jeden/Z574 @fg/7MB Sea/ 5 zum .EN Q kewm mm SW mw u@ @NN .mm mm. x NQN QNNI @NNI WSN! Aug. 14, 1962 v. R. SEARS PORTABLE HOSE SPRAYING APPARATUS 3 Sheets-Sheet 3 Filed May 18, 1960 United States Patent @Ehre 3,949,304 Patented Aug. 14, 196.2

3,049,304 PORTABLE HOSESPRAYING APPARATUS Vernon R. Sears, Tulsa, Okla.

Filed May 18,' 1960, Ser. No. 29,881 12 Claims. (Cl. 239-318) The invention, in general, relates to portable hose spraying apparatus having particular utility for spraying garden chemicals or liquid detergents in manual car washing applications, although the invention has other applications as well.

In recent years, it has become increasingly popular to spray garden chemicals admixed with water ilowing through a venturi unit or the like connected to a water hose, the venturi unit providing a region of low pressure which sucks a concentrated chemical lluid in a bottle through an inlet passageway into the main stream of water flow. Insecticides, `fungicides Iand soluble fertilizers are commonly `dispensed in this way. The bottle carrying the chemical fluid is usually provided with a cap which includes a venturi and nozzle unit which attaches to the end of a garden hose. An obvious disadvantage with this arrangement is that the size of the bottle and the quantity of the chemical which can be carried in the bottle are greatly limited since the user must carry the -weight of the bottle and its contents at Ythe end of the hose as the venturi and nozzle unit is moved about to dispense the chemical at the desired point. The proportion of chemical to water obtained is fixed by the particular venturi and nozzle unit utilized. Since various chemicals require different proportions depending on the uses to `be made thereof, it is apparent that different Venturi and nozzle units must be used for various applications of the type of hose spraying apparatus now being described.

In the earlier development of hose sprayers, the venturi unit was located at the inner end of the hose next to the water faucet. In such case, the container for the chemical fluid was a large tub or pail which did not have the size limitations or" the aforementioned bottle since the user did not have to lift the weight o-f the lled pail or tub. One serious disadvantage of this arrangement, however, 'was that appreciable back pressure was developed by the length of hose attached to the front of the venturi unit and, most importantly, by the nozzle required at the end of the hose to provide an acceptable spray pattern. This back pressure practically destroyed the venturi action of the venturi unit so that the degree of suction produced by it was generally insuilicient to draw useful quantities of chemical huid into the stream of water flowing in the hose, and back llow of ywater into the pail or tub sometimes occurred which contaminated the chemica liquid involved.

It is, accordingly, an object of the present invention to provide hose spraying apparatus of thegeneral type above described which avoids the disadvantages of the prior hose spraying apparatus described above. More specifically, it is an object of the present invention to provide a hose spraying apparatus wherein the user does not need to carry the weight of the supply of chemical fluid involved and where at the same time maximum suction e'iciency may be maintained. A related object of the invention is to provide aV hose spraying apparatus as just described wherein the proportion of chemical Huid to water may `be readily varied without Vrequiring a change in the venturi or eductor unit. A related object of the invention is to provide hose spraying apparatus as just described wherein conventional water hose apparatus may be utilized if desired. p

Another object of the invention is to provide hose apparatus which may be assembled with a conventional Water hose by the ultimate user in a simple and convenient manner to provide the hose spraying apparatus ofk the invention.

Still ano-ther object of the invention is to provide porgtable hose .apparatus for spraying selectively one of two (or more) chemical fluids in admixture with water (or other carrier lluid) forced through the apparatus under pressure, by changes or adjustments made by the user only at the end of the hose apparatus.

A further object of the invention is to provide the hose spraying apparatus above described which is Vof relatively simple and economical construction.

In accordance with one aspect of the present invention, the portable hose apparatus comprises means forming a first passageway for carrying the water or other carrier fluid, and means forming at least one additional passageway fory carrying the chemical fluid to be sprayed. The means forming the first and second passageways may be telescoping hose units with the inner hose unit carrying the chemical lluid and having an `outer diameter which is substantially smaller than the vinside diameter of the outer hose unit so that a relatively large annular Watercarrying space is provided. Means are provided for immovably anchoring the two hose units together'yso that they form an integral unit. In the alternative, the lirst and second passageway-s are formed in juxtaposed relation in a single molded body. The chemical fluid-carrying passageway-forming means in each of these embodiments includes an inlet tube portion' extending laterally of the inner end of the water-carrying passageway-forming means so that it may be extended into a pail, tub or the like containing the chemical fluid involved. An eductor nozzle unit is connected to the outlet end 'of the hose apparatus, the eductor nozzle unit having a longitudinal pasageway with a reduced throat portion forming a region of low static pressure and a suction passageway connecti ing the outlet end of the chemical fluid-carrying passageway of the hose apparatus to the throat portion of the eductor nozzle unit. The low pressure developed at the' throat portion of the eductor nozzle unit upon flow of water therethrough will provide the necessary suction for drawing the proper proportion of chemical uid fromjthe pail, tub, etc. containing the fluid.

It is apparent that the user does not have to carry the weight of the chemical fluid so that he can manipulate the end of the hose apparatus in the same easy way as with a conventional water hose. Furthermore, since thel eductor unitl is atV the end of the hose apparatus, instead of the inner end thereof, the eductor unit may form a spray nozzle as well and the suction-destroying back pressure present in the priory hose spraying devices above de'- scr'ibed is avoided.

In accordance with another aspect of theinvent-ion, the water hose portion of the apparatus may be a conventional water hose having the usual threaded hose couplings at the opposite ends thereof. In such case, the hose unit for the chemical fluid most advantageously. ex'- tends through the water hose,` the ends ofthe latter hose unit being anchored within insert *couphng membersY bridging the end portions of the water hose. The coupling members each include one or more'water-ca'rrying passageways extending longitudinally therethrough, and a chemical iluid carrying passageway having a4 laterally extending portion terminating in an opening on the: out-f side of the water hose -unit and a longitudinally extending portion terminating in a longitudinally inwardly facing -opening through which connection is made to the innerv hose unit. An'inlet tube Iwhich extends into the container holding the supply of chemical fluid to be sprayed connects with the laterally extending portion of the chemical lluid passageway of the coupling member at the inner end of the hose assembly, and a flexible tube connects with the laterally extending portion of `the chemical uid passageway of the coupling member at the outer end of the hose assembly. The eductor nozzle unit is provided with a swiveled coupling at its inlet end which makes threaded engagement with the complementary coupling at the outer end of the water hose. The reduced throat portion of the eductor nozzle unit is connected to the inner hose unit by the last mentioned iexible tube.

In accordance with another form of the invention, instead of placing the aforementioned coupling members within the water hose, they are inserted or incorporated in separate inlet and outlet coupling units which respectively have suitable threaded couplings for connection with the opposite ends of a conventional water hose, and the ends of the chemical fluid hose unit are removably connected to the coupling members. This permits the hose apparatus of the invention to be sold to the ultimate user without the water hose which the user may have already purchased. The user may detach one end of the latter hose unit from the associated coupling member and then manually push it through this water hose and then reconnect the hose unit to the associated coupling member.

Another aspect of the invention relates to the provision of an additional chemical duid-carrying passageway in the water hose and an added inlet tube to be extended into a pail or tub carrying a second chemical so that one of two chemical iluids may be selectively dispensed by the user by making certain adjustments or changes only at the outer end of the hose apparatus. For example, in accordance with a preferred form of the invention, a separate eductor nozzle unit is provided for each chemical liuid involved with separate flexible tubes extending between the throats of these eductor nozzle units and the respective chemical iiuid carrying passageways associated with the Water hose. A coupling unit is provided which interconnects the water-carrying passageway of the water hose with an eductor nozzle-receiving socket formed in the coupling unit into which either of the eductor nozzle units may be inserted. The chemical uid which is dispensed is determined by the eductor nozzle unit inserted into the aforementioned socket. Most advantageously, both eductor nozzle units tare supported on a common frame or otherwise connected together so that the unused eductor nozzle unit is readily lavailable for use at all times. This application of the invention has particular use for car washing applications where different types of soap mixtures are to be sequentially used on different parts of a car or other object -being sprayed.

Other objects, advantages and features of the invention become apparent upon making reference to the specification to follow, the claims and the drawings where- 1n:

FIG. l is an elevational View of a hose apparatus incorporating features of the present invention;

FIG. 2 is a fragmentary vertical longitudinal sectional view through the hose apparatus shown in FIG. 1;

FIG. 3 is an enlarged transverse sectional view through the hose apparatus of FIG. 2, taken substantially along the line 3-3 therein;

FIG. 4 is an enlarged horizontal longitudinal sectional view through the eductor nozzle portion of the hose apparatus of FIG. 2, taken substantially along the line 4-4 therein;

FIG. 5 is a vertical sectional view through the eductor nozzle end portion of a modified form of hose apparatus of the present invention, wherein a conventional water hose forms an element thereof;

FIG. 6 is an exploded view, partly broken away, of a still further modified form of the present invention which also uses a conventional water hose, and wherein all of the components which are added thereto form a completely separate integral assembly of parts which can be connected to the water hose by the ultimate user;

FIG. 7 is a fragmentary elevational view, partly in section, of a still further modilied form of the present invention which uses a special hose construction which includes both chemical and water carrying passageways in a single extruded body;

FIG. S is a transverse sectional view through the hose body of FIG. 7, taken substantially along the line 8-8 therein;

FIG. 9 is a fragmentary elevational view, partially in section, of another form of the present invention Where both chemical and water carrying passageways are formed in a single extruded body;

FIG. 10 is a transverse section of a view through the hose body of FIG. 9, taken substantially along line 10-10 therein;

FIG. 1l is a perspective view of the eductor nozzle end portion of a still further modiied form of the present invention wherein the hose apparatus may selectively spray one of two different chemical fluids;

FIG. 12 is a longitudinal sectional view through the hose apparatus of FIG. 11, taken substantially along the line 12-12 in FIG. 12;

FIG. 13 is a transverse sectional view through the hose apparatus shown in FIG. 12, taken substantially along the line 13-13 therein;

FIG. 14 is a transverse sectional view through the hose apparatus shown in FIG. 12, taken substantially along the line 14-14 therein; and

FIG. l5 is a fragmentary perspective view of the front end portion of the eductor coupling unit forming part of the apparatus shown in FIGS. 1l through 14.

Referring now to the embodiment of the invention illustrated in FIGS. 1 through 4, the hose apparatus thereshown comprises a home assembly 1 having an outer water hose body 2 of circular cross section and made of any suitable material such as rubber or a synthetic plastic material. The hose body 2 has a swiveled internally threaded female coupling 4 and associated washer 6 at its inner end for connecting the water hose body Z to a water faucet 8 having the usual shut-olf valve 10. The coupling 4 is held in place by a hose clamp 11. A llexible inlet tube 12 extends laterally Afrom the inlet end portion of the water hose body 2, the inlet tube extending into the open top of a pail 14 filled with the chemical fluid to be sprayed.

A chemical uid passageway may be provided in any one of a number of advantageous ways to be described in or in connection with the water hose body 2 which passageway extends substantially the full length of the water-,hose body and is immovably connected thereto so that an integral water hose and chemical fluid hose assembly results. In the form of the invention illustrated in FIGS. 1 through 4, a separate inner hose unit 16 is provided for the chemical lluid which extends within the water hose body 2. The inner hose unit has an outer diameter much less than the inside diameter of the water hose body 2 so that a substantial annular space 17 is provided between the inner and outer tubes for free passage of water. As shown in FIGS. 2 through 4, the inlet end of the inner hose unit 16 extends snugly around a short tubular nipple member 18 anchored within a longitudinally inwardly facing section 20 of a chemical Huid-carrying passageway or bore 22 formed in an insert block 24 often referred to as a coupling member. The coupling 4member 24 is force fitted within the inlet end of the water hose body 2. The passageway 22 has a transversely extending portion 26 within which is anchored a short tubular extension 28 which passes through a laterally facing opening 29 in the walls of the water hose body 2. The aforesaid flexible inlet tube 12 is secured over the tubular extension 28 in tight fitting relation thereto. The coupling member 24 is further provided with an annular longitudinal passageway 25 permitting free flow of water therethrough.

The outlet end of the inner hose unit 16 is snugly applied over the end of a short tubular nipple member 31 anchored within a longitudinally extending portion 32 of a chemical fluid-carrying passageway or bore 33 formed in the body 34w of a member which, in the form of the invention shown in FIGS. 1 through 4, forms an eductor and nozzle unit. The eductor and nozzle unit body 34 telescopes within the outlet end of the water hose body 2 which is clamped snugly therearound by suitable clamping means 36. The passageway 33 has a transversely extending portion 38 in which is anchored a short tubular extension 40. A flexible connecting tube 42' is snugly applied around the end of the tubular extension. The eductor -and nozzle unit body further includes a generally longitudinally extending passageway 44 which communicates at one end with the annular space 1'7 between the hose units 2 and 16 to receive the water flowing therein. The passageway 44 may take a variety of for-ms, such as a simple tapered venturi passageway or a restricted passageway of more or less fixed size, as illustrated, to provide a throat at which a relatively low static pressure is present when water flows through the eductor and nozzle unit. The eductor and nozzle unit kbody 34 further has a transversely extending chemical fluid-carrying passageway 46 which extends between the throat portion of the eductor and nozzle unit passageway 44 `and the outside thereof. A short tubular extension 48 is anchored in the passageway 46 and the end of the exible tube 42 is snugly applied therearound. The low static pressure developed at the throat of the passageway 44 will thus suck chemical fluid from the pail 14, through the inlet tube 12, the inner hose unit 16, and then through the connecting tube 42 into the longitudinal eductor and nozzle unit passageway 44 where the water and the chemical uid are intermixed. The stream of water and chemical fluid then pass through an exit opening 50 where they impinge-against a dellector baffle 52 which forms a generally fan-shaped spray pattern.

In the embodiment of the invention of FIGS. 1 through 4, control over the flow of water as well as the chemical fluid is by means lof the shut-olf valves 1i)` on the faucet 8, and control over the flow of the chemical fluid alone may be obtained by manually or otherwise pinching or releasing the ilexible tube 42.

Referring now to FIG. 5 which shows a modification of the discharge end of the hose apparatus of FIGS. ll through 9 wherein the end of the water hose body 2 is provided with a conventional externally threaded male coupling 54 which extends into the hose body 2 where it is clamped thereto by a suitable hose clamp 66; In this form of the invention, the eductor and nozzle generally indicated by reference numeral 34 is removably mounted upon the end of the Water hose body 2 by means of a swiveled internally threaded female coupling 64 threading around the male coupling 54. :The eductor and nozzle unit 34 has a longitudinal passageway 66 with an enlarged cylindrical inlet portion 66' and a restricted throat portion 66 which terminates in a spray opening 70. The eductor and nozzle unit has its own shut-E Valve 72 which may take any one of a variety of forms. In the illustrated embodiment of the invention7 the shut-off valve has a valve body 74 with a longitudinal opening 7 6 therein which may be oriented. in or out of alignment with the longitudinal passageway "66 by means including a manually operable lever 78 on the outside of the eductor and nozzle unit. The eductor and nozzle unit is further provided With a transverse chemical fluid inlet passageway 812 which extends between the throat portion 66" of the longitudinal passageway 66 and the outside of the eductor and nozzle unit. A short tubular extension 84 is anchored within passageway S2, and receives thereover one end of a flexible connecting tube 42. The other end of the tube 42 extends over a short tubular extension 86 projecting through hose body 2 from a coupling member 8'8 press-fitted within the outlet end of the hose body. The tubular extension 86 is anchored within a laterally extending portion 90 of a chemical Huid-carrying passageway 92. A short tubular nipple member 93 is anchored within a longitudinally extending portion v94 of the passageway 92 and receives thereover the outer end ofthe inner hose unit 16. The inner end portion of the hose apparatus shown in FIG. 5 may be identical to that shown in FIGS. 2 through 4. It is thus apparent that when the shut-off valve 72 is closed nothing flows through the hose apparatus and when the valve is opened a stream of water will ow through the eductor and nozzle unit so as to create a region of low static pressure in the throat portion 66" of the longitudinal passageway 66 thereof, to effectively suck chemical fluid from the pail 14 and through the inner hose unit 16 and connecting tube 42". The flow of chemical iiuid can be stopped without affecting the ilow of water by simply pinching the connecting tube 42'. One advantage of the embodiment of the invention shown in FIG. 5 over that shown in FIGS. 1 through 4 is that the water hose body 2 may be used as a conventional water hose by replacing the eductor and nozzle unit 34 with a sprinkler unit.

Reference should now be made to FIG. -6 which showsv a still further modified forml of the Y present invention where the present invention is sold in standard lengthsas an integral hose assembly less the water hose 2. The ultimate user may use a water hose of a standard length (which he may already have purchased) in association with the hose apparatus shown in FIG. 6 of matching size. This apparatus comprises the aforesaid inner hose unit 16 connected between an inlet coupling unit and an outlet coupling unit 102. The inlet coupling unit 100 has an open-ended cylindrical body 104 made of any suitable material which 4may be -metal or a plastic having a short hose section of the same size and material as the water hose body 2, as illustrated in FIG. 6. A coupling member 24 lis press fitted within the coupling unit body y104 and may be constructed identically to the coupling member `24 previously described. Thus, it is provided with an arcuate, water-carrying passageway 25 and a chemical `huid-carrying passageway 22 having a laterally extending portion in which is anchored a short tubular extension -28 to which the inlet tube 12 is connected. The longitudinally extending portion of the passageway 22 has a tubular nipple member 18 which is somewhat longer than the corresponding tubular nipple member 1S previously described in connection with the embodiment shown in FIGS. 2 through 4 and terminates in an externally tapered head portion 166 over which the end portion of the inner hose unit 16 may be readily pushed to anchor removably the outer end of the latter hose unit. An externally threaded male coupling 107, adapted to engage the female coupling 4 at the inlet end of water hose 2, is secured to the right hand end of the coupling unit body 164 in any suitable way, as by a hose clamp 109, and an internally threaded swiveled female coupling lllilradapted to engage with the water faucet 8 is mounted on the inlet end of the body 104 by any suitable means, as by a hose clamp 113. The end of the tubular nipple member 118 terminates ashort distance within the end of the couplingv 107 so that ready access to the same may be had for connecting the hose unit 16 thereto.

lThe outlet coupling Vunit 102 is similar to the inletV coupling unit 100 and includes an open-ended tubular body having an externally threaded `male coupling 117 secured to the outlet end thereof which is adapted to thread. into the female coupling 6,4 of an eductor. and nozzle unit 34 like that decsribed in connection with FIG. 5. The outlet coupling unit lil-2. has a swiveled internally Vthreaded female coupling 12! at the inlet end thereof adapted to thread over the male coupling `54 at the outlet end .of the water hose 2.

A coupling member 88 similar .to that described above .i

in connection with FIG.A 5 is press itted within thecoupling unit body 115. Tl'he coupling member 8S thus has an arcuate water-carrying passageway 95 and a chemical fluid-carrying passageway 92'with a longitudinally extending portion 94 and a laterally extending portion 90. A tubular nipple member 93 is anchored within the longitudinal portion 94 of the passageway 92 and terminates in an enlarged tapered head portion 125 around which may be positioned the outlet end of the hose unit 16.

The laterally extending portion 90 of the passageway 92 has a short tubular extension `86 anchored therein which projects through an opening in the coupling unit body 115 to receive one end of the flexible connecting tube 42. The other end of the ilexible connecting tube 42 extends over the end of the short tubular extension 84 projecting from the eductor and nozzle unit 34 and communicating with the throat portion of the eductor and nozzle unit.

To assemble the hose apparatus in FIG. 6 with the water hose 2, one end of the hose unit 16 is detached from the associated tapered head portion of the nipple member 1S or 93 and pushed through the water hose 2 and reconnected to the nipple member. The complementary couplings 4 through 167 and 54 through 120 are then connected together and the inlet coupling 111 connected to the water faucet 8.

In the various forms of the invention previously described, the water hose 2 and chemical fluid-carrying hose 16 are manufactured as separate unit. In the modified form of the invention shown in FIGS. 7 and 8 these two hoses are combined into a single extruded cylindrical body 2 having a segmental cylindrical water-carrying passageway 17' and a smaller cylindrical chemical uidcarrying passageway 16. A coupling member 130 is press tted within the inlet end of the chemical liuidcarrying passageway 16 to plug the end thereof, the coupling member having a passageway 134 including a laterally extending portion 13S in which is anchored a short tubular extension 142 over which extends the inlet tube 12. The eductor and nozzle unit 34 used with this form of the invention may be press fitted into the end of the Water hose 2' and clamped in place by a hose clamp 143. The eductor and nozzle unit has a longitudinal passageway 66 with a throat portion 66 which communicates with the water-carrying passageway 17' and an inlet suction passageway 82 extending from the throat portion 66 through an extension 144 projecting into the chemical huid-carrying passageway 16.

In the embodiment of the invention shown in FIGS. 9 and l0, an extruded hose body 2 is shown having large and small interconnected cylindrical tubular portions 2a and 2b having cylindrical water and chemical-carrying passageways 17 and 16". In this embodiment of the invention, an inlet tube which extends into the pail 14 is formed by an inlet end section of the tubular portion 2b which has been severed from the tubular body portion 2a, and the tubing which joins the chemical duid-carrying passageway to the chemical fluid inlet S9 of the eductor and nozzle unit 34" used therewith is formed by severing the outlet end section of the tubular portion 2b from the tubular portion 2a.

Refer now to the embodiment of the invention shown in FIGS. 11 through l5 which enables the selective spraying of one of two chemical lluids. In the form ofthe invention illustrated in these drawings, a water hose unit is provided having an extruded cylindrical body 2c having an arcuate water-carrying passageway 17 and a pair of chemical duid-carrying passageways 16-16. The hose body 2c is provided with an externally threaded male coupling 54' at one end and an internally threaded female coupling 4 at the other end. The coupling 54' threads into a female coupling 120 of an eductor and nozzle coupling unit 156, The coupling unit may be made of brass or other suitable material and includes a central longitudinal water-carrying passageway 152 which has an enlarged passageway portion 154 which joins a reduced passageway portion 156 in which is mounted a cylindrical slide member 158 having a ange 161i'. A compression spring 162 mounted within an enlarged recess 164 in the coupling unit bears against the flange 166 to urge the slide member 158 outwardly. The reduced passageway portion 156 and the recess 164i open onto a socket 166 for receiving the reduced neck portion 168 of either one of a pair of eductor and nozzle units 34a and 34b. Each of these eductor and nozzle units has a pair of aligned transversely extending pins 1'70-170` extending from the opposite sides of the neck portion 168 thereof. These pins are adapted to slide along a pair of oppositely facing hook-shaped slots 172-172 formed in the opposite sides of the walls or" the coupling unit body, as shown most clearly in FIG. l5. Each of the slots 172-172 has a longitudinally extending portion 172a and a hooked end portion 172D. The inner end of the selected eductor and nozzle unit bears against a sealing Washer 174 carried on the end of the flange 166 of the slide member 15S. The compression spring 162 urges the slide member against the end or the neck portion 168 of the selected eductor and nozzle unit to hold the pins 179-170 in the hooked end portions of the slots 172-172. The pins 170-170 may be removed from the slots 172--172 by rotating the selected eductor and nozzle unit in a direction which will bring the pins into the longitudinal portions 172a- 172e of the slots, permitting removal thereof by axial movement of the eductor and nozzle unit.

The coupling unit body has a pair of chemical fluid-carrying passageways 1520-186 at the inlet end thereof each of which has a longitudinally extending portion 18th: and a transversely extending portion 180b. Each longitudinally extending portion 18% receives a tubular projecting portion 181 extending from the body of the male coupling 54 of the hose body 2c. The tubular projecting portions 1611-181 communicate with coupling passageways 181-131' which interconnect the chemical Huid-carrying passageways 13G-18() of the coupling unit 159 with the passageways 16-16 of the hose body 2c. Laterally extending tubular extensions 184-184 are anchored within the laterally extending portions 1S0b-180b of the coupling unit passageways -180 to project laterally beyond the coupling unit where they extend within flexible connecting tubes 42-42. The other ends of the connecting tubes 42'-42 extend over short tubular members 186-186 extending from the eductor and nozzle units 34a-34b. The inlet ends of the hose body passageways 16-16 are each plugged with a prospecting portion of coupling 4 with a short bore 192 communicating with one of the passageways 16 and a tubular extension 194 over which tits the inlet tube 12.

The longitudinal passageway 156 of the coupling unit 150 has a slanting annular passageway portion 187 joining an enlarged inlet portion 187 containing a manually operable shut-oli valve 82. The slanting passageway portion 187 terminates at its outer end in a straight axial annular socket 183 which receives a tubular annular projecting portion 189 extending from the male coupling 54 and communicating with an annular coupling passageway 190 which interconnects the water-carrying passageway 17 of the hose body 2c with the coupling unit passageway 187. The inlet end of the hose body passageway 17 connects with the water faucet through the female coupling 4' clamped onto the inlet end of the hose body 2c.

Each eductor and nozzle unit has a longitudinal restricted passageway 191 which communicates with the longitudinal water-carrying passageway in the coupling unit body 150. A lateral passageway 193 formed in each eductor and nozzle unit extends from the passageway 191, and one of the `aforesaid tubular members 136 is anchored in the end thereof to connect the passageway 193 with the associated connecting tube 42.

The eductor and nozzle units 34a and 34b are most advantageously carried on a common support plate 195 having `a pair of mounting openings 197-197 sized to receive the enlarged inner ends of the neck portions 168-168 of the eductor and nozzle units with a locking fit. The eductor and nozzle unit which is connected at any movement with the coupling unit 150 may be quickly removed and replaced by the other eductor and nozzle unit.

It is apparent that when the valve r80 is opened to start flow of water through the hose apparatus, suction is developed at the juncture of the passageways 191 and 193 of the selected eductor and nozzle unit to effect the spraying of the selected chemical fluid.

In all of `the embodiments of lthe invention, an eductor and nozzle unit is positioned at the end of the hose apparatus where a maximum suction efficiency is obtained, and the supply of fluid to be sprayed is located in a large container at the inlet end ofthe hose apparatus where the user does not have to support the weight thereof. The concentrated chemical fluid in the large container may be diluted to tany desired extent to obtain any desired proportion of the mixture of chemical and water to be sprayed without requiring any change in the eductor and nozzle unit, provided however, that the size of the passageways of the eductor and nozzle uni-t involved are selected to provide the highest expected proportion of chemical fluid to water for the particular chemical fluid or fluids to be sprayed therewith.

It should be understood that numerous modifications may be made in the preferred forms of the invention above described without deviating from the broader aspects of the present invention.

l. Portable hose apparatus for spraying a chemical fluid admixed with a carrier fluid, said hose apparatus comprising hrst and second hose passageway-forming means for respectively carrying said carrier fluid and chemical fluid and each having an open inlet end and an open outlet end, the open inlet end of said first hose passageway-forming means including coupling means for connecting the same to a source of said carrier fluid under pressure, means holding said first and second hose passageway-forming means immovably together for substantially their full lengths to form a substantially integral hose unit, the outlet end of which can be readily carried about as a unit in one hand Iand moved to any point to the extent permitted by the length of substantially the entire hose apparatus to spray the fluid mixture where desired without the weight of the chemical fluid being borne by the user, the open inlet end of said second hose passageway-forming means being separated and extendable laterally from the corresponding end of said first hose passageway-forming means Where it may be placed into the bottom of a container filled with said chemical fluid, and an eductor nozzle unit for spraying the fluid mixture connected to the ends of said hose passageway-forming means, said nozzle unit having a first open ended passageway forming a reduced throat portion and communicating with said first hose passageway-forming means, and a second open-ended suction passageway connecting said second hose passageway-forming means and said throat portion of said eductor nozzle unit at which a low pressure is developed which sucks said chemical fluid from the inlet end of said latter means info the stream of carrier fluid flowing through said first eductor'unit passageway.

2. Portable hose apparatus for spraying a chemical fluid admixed with water, said hose apparatus comprising first and second hose passageway-forming means for respectively carrying said water and chemical fluid and each having fan open inlet end and an open outlet end, the' open inlet end of said first hose passageway-forming means including a female swiveled hose coupling means for connecting the same to a public waterrsupply system, means holding said first and second hose passageway-"forming means immovably together for substantially their` full lengths to form a substantially integral hose unit, the outlet end portion of which can be readily carried about as a unit inV one hand and moved to any point to the extent permi-tted by the length of substantially the entire hose ,apparatus to spray the fluid mixture involved where desired without the weight of the chemical fluid being borne by the user, the open inlet end of said second hose passageway-forming means being separated and extendable laterally from the corresponding end of said first hose passageway-forming means where it may be placed into the bottom of a container filled with said chemical fluid, and Y flowing through said first eductor'unit passageway, and a` spray baille in the path of `flow of the water leaving said eductor nozzle -unit for tanning out the stream of water flowing therefrom.

. 3. Portable hose apparatus for spraying a chemicalfluid admixed with a carrier fluid, said hose apparatus comprising first and second hose passageway-forming means Vfor respectively carrying said carrier fluid and chemical fluid and each having an open inlet end and an open outlet end, the open inlet end of said rst hose passageway-forming means including coupling means for connecting the same to a source of said carrier fluid under pressure, said Vsecond hose passageway-forming means passing through most of the length of Said first hose passageway-forming means and being immovably anchored thereto to form a substantially integral hose unit, the outlet end of which can be readily carried about in one hand and moved to any point to the extent permitted by the length of substantially the entire hose apparatus to spray the fluid mixture where desired without the weight of the chemical fluid being borne by the user, the open inlet end of said second hose passageway-forming means extending laterally outside of said fluid hose passagewayforming means where'it may be extended into the bottom of a container filled with said chemi-cal fluid, and the open outlet end of said second hose passageway-forming means extending externally outside of said first hose passagewayforming means, and an eductor nozzle unit for spraying i the fluidmixture connected to the ends of said hose passageway-forming means, said nozzle unit having a first open ended passageway forming a reduced throat portion and communicating with said first hose passageway-forming means, and a second open-ended suction passageway connecting said second hose passageway-forming means and said throat portion of said eductor nozzle unit at which a low pressure is developed which sucks said'chemical fluid from the inlet end of said latter meansrinto the stream of carrier fluid flowing through said first educ-` tor unit passageway.

- 4. PortableV hose apparatus for spraying a chemical fluid admixed with a carrierv fluid, said hose apparatus comprising first and second hose passageway-forming means for respectively carrying said carrier iiuid and chemical Vfluid and each having an open inlet end and an open outlet end, the open inlet end of said Vfirst hose passageway-forming means including coupling means for connecting the same to a source of said carrier fluid under pressure, said second hose passageway-forming means be-` ing attached tothe first hose passageway-forming means Y for most of the length of the latter to form a substantially integral hose unit, the outlet end of which can be readily carried about in one hand and moved to any point to the extent permitted by the length of substantiallyV the entire hose apparatus to spray the fluid mixture wherer desired without the 'weight of the chemical fluid being'lborne by the user, the open'inlet end of Ysaid second hose passageway-forming means extending 'laterally from said first hose passageway-forming means where it may be extended into the bottom of a container filled with said chemical fluid, and an eductor nozzle unit for spraying the fluid mixture connected to the ends of said hose passagewayforming means, said nozzle unit having a first open ended passageway forming a reduced throat portion and communicating with said first hose passageway-forming means, and a second open-ended suction passageway connecting said second hose passageway-forming means and said throat portion of said eductor nozzle unit at which a low pressure is developed which sucks said chemical fluid from the inlet end of said latter means into the stream of carrier fluid flowing through said first eductor unit passageway.

5. Portable hose apparatus for spraying a chemical fluid admixed with a carrier fluid, said hose apparatus comprising first `and second hose passageway-forming means for respectively carrying said carrier fluid and chemical fluid and each having7 an open inlet end and an open outlet end, the open inlet end of said first hose passagewayforming means including coupling means for connecting the same to a source of said carrier fluid under pressure, said second hose passageway-forming means being attached to the outside of the first hose passageway-forming means for most of the length of the latter to form a substantially integral hose unit, the outlet end of which can be readily carried about in one hand and moved to any point to the extent permitted by the length of substantially the entire hose apparatus to spray the lluid mixture where desired without the weight of the chemical fluid being borne by the user, the open inlet end of said second hose passageway-forming means extending laterally from said first hose passageway-forming means where it may be extended into the bottom of a container filled with said chemical fluid, and an eductor nozzle unit for spraying the fluid mixture connected to the ends of said hose passageway-forming means, said nozzle unit having a first open ended passageway forming a reduced throat portion and communicating with said rst hose passageway-forming means, and a second open-ended suction passageway connecting said second hose passageway-forming means and said throat portion of said eductor nozzle unit at which a low pressure is developed which sucks said chemical fluid from the inlet end of said latter means into the stream of carrier fluid flowing through said first eductor unit passageway.

6. Portable hose apparatus for spraying selectively one of two chemical fluids admixed with a carrier fluid, said hose apparatus comprising: first hose passageway-forming means for carrying said carrier fluid, second and third hose passageway-forming means for respectively carrying said two chemical liuids, each of said hose passagewayforming means having an open inlet end and an open outlet end, the open inlet end of said first hose passagewayforming means including coupling means for connecting same to a source of said carrier fluid under pressure, means holding said first, second and third hose passageway-forming means immovably together for substantially their full lengths to form a substantially integral hose unit the outlet end of which can be carried about as a unit in one hand to spray the uid mixture where desired, the open inlet end of said second and third hose passageway-forming means being separated and extendable laterally from the corresponding end of said first hose passageway-forming means where they may be placed in the bottoms of respective containers filled with the chemical fluids to be sprayed, and eductor nozzle means at the out-1 let end of said passageway-forming means and including restricted carried fluid-carrying passageway-forming means adapted to communicate with said first passagewayforming meansfor forming a region of low pressure and means for selectively coupling said second and third passageway-forming means to said region of low pressure where the associated chemical fluid is drawn into said eductor and nozzle means, a lirst open ended passageway with a reducedthroat portion which communicates with said longitudinal passageway in said coupling unit and a section passageway extending from the throat portion of the said associated passageway and a laterally facing opening therein, and a flexible conduit extending between said laterally facing opening in each of the eductor units and one of said second and third hose passageway-forming means beginning and a holder for said eductor nozzle units providing a common support therefore which enables either eductor nozzle unit to be attached to said coupling unit beginning a pair of eductor nozzle units having a carrier fluid passageway which may be positioned in communication with the outlet end of said first hose passageway-forming means and a suction passageway communicating with the outlet end of one of said second and third hose passageway-forming means.

7. Portable hose apparatus for spraying selectively one of two chemical fluids admixed with a carrier fluid, said hose apparatus comprising: first hose passageway-forming means `for carrying said carrier fluid, second and third hose passageway-forming means for respectively carrying said two chemical fluids, each of said hose passagewayforming means having an open inlet end and an open outlet end, the open inlet end of said first hose passageway-forming means including coupling means for connecting same to a source of said carrier fluid under pressure, means holding said first, second and third hose passageway-forming means immovably together for substantially their full lengths to form a substantially integral hose unit the outlet end of which can be carried about as a unit in one hand to spray the fluid mixture where desired, the open inlet end of said second and third hose passagewayforming means being separated and extendable laterally from the corresponding end of said first hose passagewayforming means where they may be placed in the bottoms of respective containers filled with the chemical fluids to be sprayed, and a pair of eductor nozzle units for respectively spraying said chemical iluids, each of said eductor nozzle units having a carrier fluid passageway having a throat portion which may be connected with the outlet end of said first hose passageway-forming means and a suction passageway extending from said throat portion and adapted to be connected to one of said second and third hose passageway-forming means,

8. Portable hose apparatus for spraying selectively one of two chemical iluids admixed with a carrier fluid, said hose apparatus comprising: first hose passageway-forming means for carrying said carrier fluid, second and third hose passageway-forming means for respectively carrying said two chemical fluids, each of said hose passageway-forming means having an open inlet end and an open outlet end, the open inlet end of said first hose passagewayforming means including coupling means for connecting same to a source of said carrier fluid under pressure, means holding said rst, second and third hose passageway-forming means immovably together for substantially their full lengths to form a substantially integral hose unit the outlet end of which can be carried about as a unit in one hand to spray the uid mixture where desired, the open inlet end of said second and third hose passageway-forming means being separated and extendable laterally from the corresponding end of said rst; hose passageway-forming means where they may be placed in the bottoms of respective containers `filled with the chemical fluids to be sprayed, a pair of eductor nozzle units for respectively spraying said chemical fluids, and a coupling unit including a longitudinal passageway communicating with said first hose passageway-forming means and terminating in a portion which removably receives either of said eductor nozzle units, and a manually operable shut-off valve for selectively opening and closing said longitudinal passageway, each of said eductor nozzle units having a first open ended passageway with a reduced throat portion which communicates lwith said longitudinal passageway in said cou-A pling unit when inserted Ithereinto and a 'suction passage-V way extending fromV the throat portion of the associated irst open ended passageway and a laterally facing opening therein, and a pair of conduits respectively extending between said laterally facing openings in the eductor nozzle units and said second and third hose passagewayforming means.

9. Portable hose apparatus for spraying selectively one of two chemical fluids ladmixed with a carrier fluid, said hose apparatus comprising: 'iirst hose passageway-forming means -for carrying said carrier fluid, second and third hose passageway-forming means for respectively carrying said Itwo chemical fluids, each of said -hose passagewayforming means having an open inlet end and an open outlet end, the open inlet lend of said first hose passage- Way-forming means including coupling means for connecting same to a source of said carrier uid under pressure, means holding said iirst, second and third hose passageway-forming means immovably together for substantially their full lengths to form a substantially integral hose unit the outlet end of which can be carried about as a unit in one hand to spray the fluid mixture where desired, the open inlet end of said second and third hose passageway-forming means being separated and extendable laterally from the corresponding end of said irst hose passageway-forming means where they may be placed in the bottoms of respective containers lled with the chemical iiuids to 'be sprayed, -a pair of eductor nozzle units for respectively spraying said chemical iluids, -a coupling unit including a longitudinal passageway communicating with said iirst hose passageway-forming means and terminating in a portion which removably receives either of said eductor nozzle units, and -a manually operable shut-olf valve for selectively opening and closing said longitudinal passageway, each of said eductor nozzle units having a first open ended passageway with a reduced throat portion which communicates with said longitudinal passageway in said coupling unit when inserted thereinto and a suction passageway extending from the throat portion of the associated iirst open ended passageway and a laterally facing opening therein, and a pair of conduits respectively extending between said laterally facing openings in the eductor nozzle units and said second and third hose passageway-forming means and a holder -for said eductor nozzle units providing a common support therefor which enables either eductor nozzle unit readily to be attached to said coupling unit.

10. Portable `hose apparatus for spraying a chemical fluid admixed with a carrier fluid, said hose apparatus comprising: 1a main hose body for carrying said carrier fluid and having an inlet end adapted to receive the carrier fluid under pressure and an outlet end from which said carrier iluid is to be discharged, coupling members respectively'inserted in the inlet and outlet ends of said hose body and each having a rst longitudinal passageway means through which said carrier fluid" passes, and a chemical fluid-carrying passageway comprising a longitudinally extending portion passing partially through the coupling member and a laterally extending portion opening onto the side of said hose body, said longitudinal passageway means in the coupling members being sized readily to pass fluid with relatively small pressure drop, an eductor nozzle lunit at the outlet end of said main hose body which unit has a longitudinal passageway having a restricted portion providing a region of relatively low static pres-sure and communicating with said main hose body, and a suction passageway opening at one end onto the outside o-f the eductor nozzle unit and at the other end onto said restricted portion of said last mentioned longitudinal passageway, a second hose body within said main hose body and extending substantially the length thereof, the opposite ends of said second hose body respectively communicating with said longitudinally extending portions of said chemical duid-carrying'passageways of said coupling members, aconnecting tube ex-i tending between thezend of said. suction passageway onA the outside .of said eductor nozzle unit 'andthe longitudi-V Y nally extending portion of said chemical duid-carrying passageway of the coupling mem-ber on the outletend ofV said main hose body, and an inlet tube extending yfrom#` water hose to a. hose spraying apparatus for sprayingV chemical iiuid adrnixed with the water, said hose apparatus comprising an inlet unit having coupling means at its outlet end for connecting the outlet end to the inlet end of the water hose and couplingmeans at the other end of the inlet unit for connecting the same to a faucet, said inlet unit having a longitudinal open-ended passageway for carrying water through the inlet unit and a chemical fluid carrying passageway which is separate from said longitudinal passageway and which includes a transversely extending portion opening onto the side of the inlet unit and a longitudinally extending portion opening longitudinally inwardly of the inlet unit, and an outlet unit having coupling means at its inlet end for removably coupling the outlet unit to the outlet end of said 'water hose, a second hosev unit for carrying'said chemical iiuid removably connected between said longitudinal portion of said chemical duid-carrying passageway of the inlet unit and said outlet unit and having an outer diameter which is substantially less than the inside diameter of said water hose and :having a Ilength to extend completely through said water hose with which the hose apparatus is to be associated, said outlet unit including a water-carrying longitudinal passageway =for communication with the space between said water hose and second hose unit, and said last mentioned water carrying passageway having a restricted throat portion for providing a region of low pressure and -a discharge opening downstream from said throat for spraying iluid therefrom, and

said outlet unit having a chemical fluid-carrying passageway which connects with the outlet end of said second hose unit and with said throat portion of the longitudinal passageway of said outlet unit.

12. Portable hose apparatus for spraying a chemical fluid admixed with a carrier iluid, said hose apparatus i comprising: a hose body having a passageway therein Ifor carrying said carrier fluid and having an inlet end adapted toreceive the carrier fluid under pressure and an t outlet end from which said carrier fluid is to be dis-r charged, coupling members lrespectively at the inlet and outlet ends of said hose body and having longitudinal passageways through which said carrier iluid passes respectively into and out of said hose body, and chemical fluid-carrying passageways through which said chemical fluid passes respectively into and out of said hose body, each of the latter passageways comprising a longitudinally extending inwardly open portion passing partially through the associated coupling member and a laterally extending and open portion opening onto the side of said hose body, said longitudinal passageway in the coupling members being sized readily to pass carrier iluid with relatively small pressure drop, eductor nozzle means at y the outlet end of the main hose body which means has a longitudinal passageway having a restricted portion providing a region of relatively low static pressure and forming an extension of the adjacent coupling member longitudinal carrier liuid passageway, said eductor nozzle Y means also having a laterally opening suction passageway which communicates at its inner end with said restrictedV 15 ing said chemical fluid, the oppositev ends of said lastmentioned passageway respectively communicating with said longitudinally extending portions of said chemical uid-carrying passageways of said coupling members, a connecting tube extending between the laterally open ends of said suction passageway of said eductor nozzle means and the laterally extending portion of said chemical fluid-carrying passageway of the coupling member on the outlet end of said hose body, and an inlet tube extending Lfrom the laterally open end of the laterally extending portion of the chemical fluid-carrying passageway of said coupling member at the inlet end of the hose 16 ibody and adapted to extend into a container yfilled with said chemical iluid.

References Cited in the tile of this patent UNITED STATES PATENTS 1,039,365 Coulter Sept. 24, 1912 1,976,506 Maurer Oct. 9, 1934 2,083,851 Marcy June 15, 1937 2,594,476 Miller Apr. 29, 1952 2,767,022 Kennard et al. Oct. 16, 1956 2,942,791 Bush et al. June'28, 1960

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