US1682427A - Container - Google Patents

Description

Aug. 28, 1928. 1,682,427

s. SCHWARTZ CONTAINER Filed June 1l. 1927 3 Sheets-Sheet' l Vl ""mn IIII 22 'IIN Imllllll lf zzaZczuezr Aug. 28, 1928.

s. scHwAR'rz oNTAINER.

3 Sheets-Shea?l 2 Filed June 1l, 1927 lkverzgoz:

S scHwAm-z CONTAINER med June 11. 1927 Aug. 2s, 192s.

...,container.

Yof the plug conditioned as shown in Fig. 3

' fPatented Aug. 28, 1928. I

UNITED STATES PATENT OFFICE.

SAUL SCHWARTZ, OIE*` CHICAGO, ILLINOIS, ASSIGNOR T0 HNRY SCHWARTZ, 0F

CHICAGO, ILLINOIS.

CONTAINER.

Application aled'aune 11, 1927; serial No. 19s,24o.

My invention relates to containers in general, but more particularly to cans, or drums, for fluids such for example, and more especially, lubricating oil; and my primary object is to prevent re-sealing of the containers, after the opening ofthe same for removal of their contents, thereby preventing unscrupulous persons from removing the contents of the containers and substituting other. contents therefor and disposing of such substituted contents in place of'the original contents, and to provide simple and economical means for this purpose.

Referring to the accompanying draw- .ingS-f Figure 1 is a broken plan view of the plug-equipped portion of a container constituting one embodiment of my invention. Figure 2 is a sectional view through this portion of the container, the section being taken at the lines/2 on Figs. 1 and 5 and `viewed in the. direction of the respective arrows.l Figure 3 is a vertical sectional view of the plug of the preceding figures with the parts thereof conditioned preparatory to the application of the plug to the opening in the Figure 4 is a bottom plan view with the collector device for the cuttings removed. Figure 5 is a bottom plan view of the plug with the parts positioned as shown in Fig. 2 with the collector device removed. Figure 6 is a view like Fig. 1 of another embodiment of` my invention. Figure 7 is a sectional view taken at the line 7 on Fig. 6 and viewedin the direction of the arrow. Figure 8 is a View in vertical sectlon of the plug of Figs. 6 and 7 showing the parts thereof positioned' preparatory to the introduction of the plug into the filler opening of lthe container. Figure 9 is a bottom plan view of the plug of Fig. 8 with the parts thereof positioned therein as shown 1n thls figure and with the collector device for the cutting removed. Figure 10 is a section taken at the line 10 on Fig. 8 and viewed in the direction of the arrow with the collector device removed.` Figure 111sa- View in vertical sectionI taken through the plugequipped portion of a container constituting still another embodiment of my invention, the section being taken at the'line 11-11 on Fig. 13 andiviewed inthe direction of the arrows'and showing the positions assumed by the parts of the plug at the conclusion and viewed in the direction of the arrows I.

this view showing the positions assumed by the parts upon the initial rotation of the plug for removing it from the liller opening. Figure 13 is a bottom plan view of the plug with the parts thereof positioned as shown in Fig. 11, with the collector for the cuttings removed. Figure 14 is a. bottom plan view of the plug with the parts thereof positioned as shown in Fig. 12 and with the collector device removed; and Figure 15, a view in side elevation of the plug.

In all of the forms of construction illustrated in the drawings, the wall in which the filler opening is provided, and which may be the top wall of the container, is represented at 2O and is shown as aperturd at 21 to which portion an internally-threaded flanged bushing 22 is secured. The edge portion of the wall20 surrounding the opening 21 is deflected as represented at 23, this deflection ing in the vbushing 22, a gasket28 being preferably interposed between the upper annular llange ortion 29 of the plug and the opposing wall) plug 26 contains a centrally-disposed downwardly-opening recess30 the walls of which ,contain diametrically-opposed openings '31" 'in which radially reciprocable cutting tools 32 are mounted to extend transversely of the axis of the plug, these tools being provided with stop-pins 33 at their inner ends adapted to limit outward movement ofthese tools. Mounted in the recess 30 to be reci rocable therein lengthwise of the axis of t e plug,

portion of the container. The

is a plun er 34 normally yieldingly pressed downwar ly to the position shown in Fig. 2, by a coil spring 35 interposed between this pllunger and the upper wall of the recess 30, t e plunger 34 being provided with a depending stud portion 36. The lower extremity of the stud 35 is of frusto-conical shape as represented at 37 and its upper portion, adjacent the disk 34 and represented at 38, is of cylindrical form. The parts are so constructed and arranged as shown that when the plunger 24 is raised against the resistance of the spring 35 to the position shown in Fig. 3, the cutting tools 32 may be retracted to a position in which their cutting edges 39 extend inwardly beyond the threaded portion 27 of the plug, and when the plunger 24 occupies the position shown in ig. 2, in which its cylindrical poitions 38 opposed the inner ends of the cutting tools 32, the tools will occupy the projected position shown in this figure in which position they are held against retraction by the abutment provided by the portion 38 of the plunger, it being understood that the` wedge surface 37 of the plunger forces these tools outwardly to the position shown in Fig. 3 in the movement of the plunger to the position shown in this figure.

Preliminary to the introduction of the lug into the filler opening, the operator orces the plun er 34 to the position shown in Fi 3 in w ich position it may be releasaby held, as by means of a pin 40 inserted through an opening 41 in the side wall of the plug to underlap the lower sur'- face of the head of the plunger 34 as shown in Fig. 3. The operator then screws the plug part way into the filler opening, thereupon withdraws the pin 40 and continues the screwing of the plug to place as shown in Fig. 2, the cutting edges 39 of the tools being so shaped, as shown, that they do not exert any cutting action in the screwing of the plug to place.

Upon unserewing the plug from the filler opening, the cutting tools engage the thread of the bushing 22 and so mutilate it throughout its extent, preferably entirely cutting it away, that it renders'impossible the screwing of another plug into this filler opening.

The cutting tools are preferably provided of different lengths as shown, the one of these tools which first en ages the thread in the unscrewing of the p ug, projecting beyond the side wall of the plug a lesser distance than the other cutt1ng tool whereby each cutting tool performs a portion of the cutting operation and minimizes the force required to remove the plug.

The thread of the plug preferably extends to a point below the cutting tools to ensure the provision of a guiding surface on the plug below tools which cooperates with the wall of the ller opening and prevents such canting of the plug, in the final movements of the cutters, as might result in a failure to cut away the thread on the bushing throughout the length of the latter, In this construction such guiding is effected by providing depending lugs 2G on the body of the plug the surfaces thereof at the periph- 4ery of the plug being threaded to form a continuation of the thread on the main portion of the plug body.

The plug is preferably provided with means for collecting the cuttings produced by the action of the cutting tools these means comprising a dishcd plate 42 provided on the lower end of the plug and shown as fastened to depending lugs 43 thereon by means of screw 44.

In the construction shown in Figs. G to 10, inclusive, the body of the plug, herein represented at 45, is of the saine construction as the plug 26, its downwardly-openiug recess, represented at 4G, containing a reciprocable head 47 backed by a coil spring 48. and its depending threaded lugs at 45. The head 47 is provided with depending, spaced apart, flanges 49 between which the inner ends of cutting tools 50 extend, these tools being pivotally connected with the head 47 by means of pins 51 secured in the lugs 49. The outer ends of the tools 50 extend into radially-dis posed openings 52 in the walls of the plug, and these parts are so proportioned and arranged as shown that when the head 47 is raisedagainst the resistance of the spring 48 to the position shown in Fig. 8, in which position it may be held by a pin 53 as exlained of the construction of Figs. 1 to 5, inclusive, the outer cutting ends of the cutters 50 will be withdrawn inwardly from the threaded portion of the plug, and when the head 47 occupies the position shown in Fig. 7, these cutting edges will extend into cutting position, but at variable distances as explained of the previous construction.

In the use of the plug the head 47 is shifted by the operator to the position shown in Fig. 8 and held in place by the pin 53, and the plug then partially screwed into the filler opening of the container. The pin 53 is then withdrawn and the plug screwed to place, the spring projecting the cutting tools 50 outwardly. In the unscrewing of the plug the cutting tools cut away the thread in the bushing 22.

In the construction illustrated in Figs. 11 to 15` inclusive, the bottom of the plug, represented at 54, contains a centrally-disposed recess 55, the upper wall of which contains diametrically opposed recesses 56 which open through the side wall of the plug, as shown. Located in the recesses 56, are cutting tools 57 through which pivoting screws 58 secured in the plug, extend, the recesses 56 being so shaped that these cutting tools are adapted to have slight/pivotal movement ceding figures, it being the purpose, however, in this particular construction, to pro- Vide cutting tools which do not require preliminary positioning thereof by the operator as inthe case ofthe cutting tools of thel preceding figures. To this end the cutting tools are of such form, as shown, that in the screwing of the plug to place they occupy the position shown in Figs. 11 and 13 and do not damage the thread of the busliing,'

but as soon as the operator starts to. unscrew the plug from the bushing, the friction between the thread of the bushing and the opposing end-surfaces of the cutters, rotates the cutters to the position shown in Figs. 12 and 14 thereby' causing their cutting edges to engage the thread of the bushing and cut it away in the unscrewing ofthe plug. As in the construction of the preceding figures the cutting tools are so proportioned and arranged that the one which first engages the thread in the operation of unscrewing the plug. and represented at the left-hand side of Fig. 14,. only partially cuts away the thread of the bushing and the other cutter completes the cutting-awayoperation In this construction the collecting device represented at 59 is secured centrally, as by a screw 60, to a central depending lug 61 on the body of the plug.

The cutting tools 57 in this construction are preferabl also located intermediate the ends of the t readed portion of the plug to nensure the provision of a guiding surface on 4the plug below these tools for cooperation with the wall of the filler opening to prevent such canting of the plug, in the final movements of the cutters, as might result in a failure to cut away the thread on the bushing throughout the length of the latter.

While I have illustrated and described certain particular forms in which my invention may be embodied, I do not wish to be l understood as intending to limit it theretov as the same may be variously modified and altered and the invention provided in other forms without departing from the ,spirit thereof.

What I claim as new, and desire to secure by Letters Patent, is:

l. The combination with a container having a threaded opening, of a threaded closure-plug for said opening provided with means operating, `upon the unscrewing of said plug, to so mutilate the container as to render it unadapted for receiving a similar ug. H p 2. The combination with a container having a threaded opening, of a threaded closure-plug for said opening provided 'with means operating, in the unscrewing of said plug, to mutilate the thread on the container.v

3. The combination with a container having a threaded opening, of a threaded closure-plug for said opening, and cutter means on said plug operating, in the unscrewing of said plug, to cut away the thread on the container.

4. The combination with a containerihaving a threaded opening, of a threaded` closure-plug for said opening, and a cutting element on said plug adapted to become automatically positioned, upon the screwing of the plug to place, for cutting away the thread 011i the container in the unscrewing of the p u 5i; The combination with a container having a threaded opening, of a .threaded closure-plug for said opening, a cutter on said plug and spring means operating to force said cutter into a position in which vthe thread on the container is cut away in the act of unscrewing the plug from said opening.

6. The'coinbination with a container having a threaded opening, of a threaded closure-plug for said opening, a cutter tool for mutilating the thread on the container opening movable on said plug into and out of cutting position, and a movable member controlling the position of said tool and adapted to be locked in retracted position.

7. The combination with afcoiitainer having a threaded "opening, of a threaded closure-plug for said opening, a cutter tool for mutilating the thread on the container opening movableV on said plug into andout of cutting position, a movable member controlling the position of said tool, and a spring operating to force said member into a position in which said tool is in cutting posil tion, said member being adapteddto belocked in retracted position against the resistance of said spring.

8. The combination with a container having a threaded opening. of a 'threaded closure-plug for said opening` a cutting tool for mutilating the thread on the container opening extending crosswise of said plug and movable thereon, a wedge member for forcing said tool to cutting position, and a spring acting laga-inst said Wedge member, for the purpose set forth.

9. The combination with a container having a threaded opening. of a threaded closure-plug for said opening. diametrically opposed cutting tools radially slidable on said plug, a wedge-memberinterposed between the innerends of said tools and operating to forceI the latter outwardly, and a spring acting against said wedge-member.

SAUL SCHWARTZ.

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