US2554481A - Valve mechanism for pumps - Google Patents

Description

May 22, 1.951 M. R. SHI-:EN 2,554,481

VALVE MECHANISM FOR PUMPS Filed March 22, 194e 2 sneets-sheetl I N V EN TOR.

ATTORNEYS,

May 22, 1951 M. R. sHEEN 2,554,481

VALVE MECHANISM FOR PUMPS Filed March 22, 194e v 2 Sheets-Sheet 2 l /9 5 9 @24.- J /4 I (gp ATTORNEYJ.

Patented May 22, 1951 VALVE MECHANISM FOR PUMPS Milton Roy Sheen, Glenside, Pa.; E; Elizabeth Sheen and Isaac A. Pennypacker executors of said Milton Roy Sheen, deceased Application March 22, 1946, Serial No. 656,300

. 3 Claims. (Cl. 277-61) l Y My invention applies to valve mechanism for a pump which forces fluids against a high pressure. It is particularly suited to maintenance of a high degree of cleanliness in the mechanism itself.

My invention makes the valve mechanism shown in my Patent No. 2,367,893 highly accessible for cleaning so that in handling such liquids as milk or other foods or chemicals the passages can conveniently be cleansed thoroughly and sterilized immediately after use.

The main purpose of my invention is to provide a series multivalved inlet and a series multivalved discharge valve having when assembled the general characteristics of the structure in my said patent, using a removable valve structure which may be cleansed completely and sterilized completely between successive uses during a temporary interruption in the operation but Without damaging the valves.

A futher purpose is to clamp a removable valve structure between opposing at valve frame and cap faces by which both ends of each passage are terminated.

A further purpose is to provide a removable valve structure containing multiple inlet valve seats and valves and multiple outlet valve seats and valves and" to` position the removable valve structure between a flat valve frame face and hat clamping structure in cap form, so that when the parts are released the valve seats, valve passages and valves may be accessible for physical cleaning and for sterilization.

Further purposes will appear in the specification and in the claims.

I have preferred to disclose my invention by a single form only, selecting a form which is practical, effective and inexpensive but which at the same time well illustrates the principles of the invention.

In the preferred form shown,

Figure 1 is a top plan view of an assembled pump Valve. v Y

Figure 2 is a section of Figure 1 upon line 2-2.

Figure 3 is a section of Figure 2 on line 3-3.

Figure 4 is a perspective view of the valve of Figure 1.

Figure 5 is a top plan View of the complete structure of which a half is shown in Figure '7.

Figure 6 is a bottom plan view of the complete structure of which a half is shown in Figure '7.

Figure 7 is a longitudinal central section showing the removable valve of Figure 2 in sectional perspective. e

Figure 8 is a perspective of a portion of Figure 2 taken from the position of line 8--8.

In the drawings, similar numerals indicate like parts.

Ihe complete valve structure comparable with the structure of Figure 5 in my patent above is seen in Figures l'and 2-see also Figure 7-in which earlier figures the valve casing 2 supports a cylinder 3 provided with a suitable gland, not shown, for a piston 4. The cylinder intake is seen at 5 and its discharge at 6. In front of the piston is mounted a valve-carrying removable block Within the block the inlet is guarded by two check valves in series and the discharge is likewise protected by two check valves in series.

The intake passage for the system is shown at 'opening through chamber 9 and bore IB to valve chamber I I. The bore is provided with 'an annular valve seat I6 on which rests a ball I2. The valve chamber II connects through a diagonal passage I3 and a bore I4 valved at I5 with a chamber I 6. The sizes of the openings at I! and I8 are restricted so that the several balls cannot escape from the parts of the passages adjacent their seats. The valves settle, preferably by gravity, or by spring or by reason of the back pressure of the liquid upon cessation of the flow of the liquid. The passage IQ becomes the inlet 5 to the pump cylinder.

The two valve members l2 and IE operate in series as in my patent to prevent the reverse iow of liquid from within the piston chamber toward the intake 3, while at the same time permitting substantially free ow of liquid from said intake toward and into said piston chamber during the outward stroke of the piston.

The outlet aperture 6 from the piston bore forms a valve passageway and is provided with an annular valve seat 22 upon which rests a third ball or equivalent valve 2I within a valve chamber 22 which in turn leads through a transversely restricted opening 23 into a connecting passageway 24.

From the passageway 24 the liquid flows from the piston bore during the inward (pumping) stroke of said piston through passageway 25 provided with annular valve seat 26 for a fourth ball or equivalent valve member 21 within a valve chamber 28.

The valve chamber 28 communicates through a transversely restricted opening 29 with an angularly directed passageway 39 provided with the discharge port 3i. With this construction, it will be seenthat the two discharge valve members 2| and 21 cooperate iiuid entering at the inlet end travels (staggers) through adjoining diagonal passages .tothe sntu'np cylinder, and escapes from the cylinderthrough diagonally opposite communicatinggpassages.

It passes through one but ,preferablyathreughia series of valves within the inlet path and through in position against movement but the faces of the cover and seat respectively close the various openings formed by chambers, passages, etc.

In view of my invention and disclosure variations and modications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part .of-the .rbenei'ltsof my invention .without copying ithefstructurehown, andl, therefore, .claim all such insofar as they fall within the reasonable V:spirit and scope of my claims.

Having thus. described my invention what I claim asnew'and desire to Secure by Letters Pat- ."'.1.\In;a @valve,.-faunember provided with a valve iic'bl'ockfseat-having-a passage extending through one, but preferably through aseries of .valvesin Y"blockhavingoppo'sed faces with one abutting the outlet travel. The construction affords complete access to the passages, cylinder, valvessetV j and cover face when the cover shall have been removed.

The invention .is `well.suited-..to .use indiandling milk .and .other 4liquidicods, which.,are,1easily spoiled.

.It will be evident thatV .the nnusualiaccess .to the .casing .and .cover .partsand-.to ,the.block.make itpossiblenot only to 1cutthe passages desiredhut to cleanse .the parts -and sterilize .them .quickly and satisfactorily.

It rwill'be evident '.that all ,joints .betweengthe y valve parts and 'the .casing ,and .cover respectively are ,made by pressureand are-,released by releasing lthe pressure.

Thelbodycasin g oriframe portion 321s webbed at33 to connect `the piston-carrying.,.portionlf the casing andachanneledsupport .within which the valve-carrying removable vvalve-.block.Amit v'l is mounted. N'Ihis valve-block or valve-carrying unit rests on a plane seat forming the.bottom. 35 of aslot between flangesandl. vItiselammed into sealing engagement .with Vthebloclrbypressure exertedrbtween saidbottom and anhanneled cap 38 whose inner faceworms'a plane valve-block cover 39 fbetween vchannel cover flanges 40 and 4l. 4In the 4illustration..'thle..'faces of the seat and Y,cover are ...plane .and .parallel .but this isnot essential .provided lthe surfacesitlthe adjacent faces rof `the block .and .close .theldiagon'al passages.

The clamping between Ythe valve.-.blcckseatrand the coveris eiected .by bolts-,42 .(Fignres'l-A) which, for quick application..and..r.elease, 4arelpivoted upon .pins 43 supportedinand betweentears 44 upon the casing, and-swing.intospaces.45.between ears M' in the cover. 'Nuts 4.6 Iholdsthe parts together.

It will be apparent that .the surfaces of .the seat and cover reffectively .closeithends of.the different passages, and 'that Ythe 4release ,of '.the bolts permits complete removal .of Ythelhlock -for the purpose of givingiiill access to Athe,par.tsof the casing and cover as well as .to .the Avarious passages and valve elements.

The casingis laterallyextendedon bothsides at intervals to provide the flugsv .between Lwhich the bolts are .pivoted. The .bolts swingtransf versely to .thelengtho'f rthe .valveblockrto enter from'the sides-the slotshetween.theeorresponding ears or lugs at the edges of the cover.

Nuts vll are tightened .to clamp the-parts together. Q

"The block isheld rmlylbetweenihecoverand the block seat, whereby not onlyldoes .theelamping action hetweenthe coverontherone.sidesand the .block seaton .the .other .firmly .holdmheiblock .theseatintermediate the ends of the seat, a valve againstthe valve block seat and having a series of passages in the block each extending com- .A '.-pletely ftherethroughffrom'one face thereof toxthe other so 'that adjacent :ends of the ,passagesintersect and vzcomznunicationf with 'fthe passage in thennember fis established intermediateftheaends of the series, a cooperating check valve andseat .inmne of -lthe gvalve=block :passages between sone end of -the :series and the ',fpassage A,through r.the valve t:block seat,.,sai'd..check .valve opening toward Lthe `passage .through .the -.valve :block-seat@ .cooperating check rvalve and. seat Vlin another of the valve block passages between the v'otherend .of n.the .series r.and 4Athe -passage .through :the .valve block.seat,.-said1 last mentioned-,checkvalveopening away. from. .the .passage through the valve block ',seat,n an .inlet communicating with .one end Yof :the series of .passagesan outlet communicating -with the. other-.end ofthe useries of passages, acover on .the valve.block.at-the oppositefends of .the passagestherein from the valve block seat, and a clamping device pressing .the --valve .block seat, the valveblockandthe cover together.

2. In a valve, amember .provided Witha -valve block .seat ,having .a passage extending .through the seat intermediate the ends of the seat,.avalve block .having .opposed faces with ,one .resting againstihe .seat .having a series of ,passages Y1in 4thelilo'ckeac'h.-extending.completely(therethrough :from one i ace thereof .to theothers'o that .adjace'ntfends .of thepassages intersect and .commu-` nication withfthepassage in the member is .es- .tablished intermediate ,the ends of .the series;A the passages .at .the block being in Zig-zag relation to one another, a pair of cooperating check valves andseats in vsequence inthev passages in Vthe'block between one end ofthe series of passagesin the block and the passage through the block seat, said check valves opening inthe direction tcward'thepassagethrough the'block seat, apair'of cooperating check valves andse'ats in `sequence inthe blockpassages"between'the other Yend vof the series of passages in the block andthe passage through theiblock seat,'said--last mentioned check `valve opening Lin the .direction away :from the passage through the block seat, aninle'tco'mvmunicating with -one end lof vthe series of;pas sages,v an 'outlet communicating with the other-end of the'series of passagesfaf'cover on 4theopposite face of the valve block from the valve block'rseat; and clamping meanskholdingthe val-ve block-seat, the-valve vblockrand the 'cover'togethen Y ,Y

k3. IIna valve, amembervfprovided with awalve block Tseat .having a-.passage ktherethrough `intermediate .itsends, .the :seat being inclined rto the horizontal, a valve .block Ahavingopposed .faces one of which rests on the inclined facefofgtlie 5 valve block seat and having a series of rst passages in the block each extending completely therethrough from one face thereof to the other and inclined in one direction with respect to the inclined face of the valve biock seat and having a series of second passages in the block generu ally transverse to the rst passages and each extending completely therethrough from one face thereof to the other, the first and second passages at their adjacent ends intersecting and communicating with one another, and communicating intermediate the ends of the series With the passage through the valve block seat, a plurality of cooperating ball check valves and valve seats in the first series of passages on each side of the passage through the valve block seat, the ball check valves on one side of the passage through the valve block seat opening toward and those on the other side opening away from the passage through the valve block seat, an inlet 20 communicating with one end of the series of passages, an outlet communicating with the other 6 end of the series of passages, a cover on the valve block and clamping means securing the valve block seat, the valve block and cover together. MILTON ROY SHEEN.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 131,644 White et a1 Sept. 24, 1872 707,079 Blevney Aug. 19, 1902 1,123,316 Kranz Jan. 5, 1915 15 1,503,646 Fish Aug. 5, 1924 2,367,893 Sheen Jan. 23, 1945 FOREIGN PATENTS Number Country Date 17,722 France Nov. 13, 1902 (Addition to 444,102)

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