US2001748A

US2001748A - Container closure

Info

Publication number: US2001748A
Application number: US524563A
Authority: US
Inventors: Arthur A Saalbach
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1931-03-23
Filing date: 1931-03-23
Publication date: 1935-05-21
Anticipated expiration: 1952-05-21

Description

May 1935- v A. A. SAALBACH I 2,001,748

CONTAINER CLOSURE Filed March 25, 1931 INVENTOR ATTORNEY Patented May 21, 1935 UNITED "STA S CONTAINER CLOSURE Arthur Saalbach, East Orange, N. J., assignor to American Gan Company, New York, N. Y., a corporation of New Jersey Application Mareh23, 1931, Serial No. 524,563

9 Claims. (01. 220-46) The present invention relates tocontainer clo-' sures and has more particular reference .to 010- sures wherein the container coveris detachably engaged with the, body, and a sealing joint is obtained therebetween by an interposed gasket.

In the packagingof white lead and other bulky and heavy commodities, it has been generally the custom to employ containers of sheet metal of suitable gage and closed by a cover or closure member fitting tightly at the mouth of the container body and locked in place either by engagement of the parts or by a separate member. A gasket such, for example, as a rubber tube,-has not infrequently been employed for compression between adjacent parts of the cover and body. Such tubular gasket, in accordance with prior practices has usually been glued or cemented to the cover. a

Covers for such purposes must be shipped from 1 their place of origin, the can manufacturer, to their place of use, the paint packer, and incident to such handling are subjected, more or less, to bumps, knocks and other strains of shipment which often dislodge and loosen the gaskets from their cemented seats on the cover. The packer, as a result, receives the cover without a gasket. In some rare cases these tubular gaskets have been ,used as separate members and separate covers and gaskets come into the hands of the packer. The assembling operationby him requires individual and somewhat carefulpositioning and is unsatisfactory and expensive. t

'The principal object-of the present invention is the provision of a closure for a container of the character described to which the gasket is permanently attached to facilitate and insure initial sealing and subsequent re-sealingx An important object of the invention is. the

' provision of aclosure generally of the kind above described'wherein the gasket is assembled with, or incorporated in, one or the other of the cover or body members, preferably the cover member so that it will not become separated therefrom but will remain at all times in proper position. So constructed and arranged, the gasket is provided in attached relation by the manufacturerof the container and the packer of the commodity need, therefore, only to position the coverupon the container, after filling with the contents.

Another important object of the invention is the provision of a sealing closure ofthe general character described which conveniently permits preliminary attachmentof a tubular or other relatively large and flexible gasket to the cover.

. White lead and other commodities packed in containers of this general character are usually removed by the consumer in relatively small quantities and the closure employed to seal the contents between such removals. The provision of a separate or detachable gasket member accordingly has required careful positioningbefore reclosing the container after each opening or has resulted inits abandonment or absence with-consequent deteriorationof the contents.

Numerous other objects of the invention will be apparent as it is better understood from the 01 lowing description, which, taken in connection with the accompanying drawing, discloses apre ferred embodiment thereof.

Referring to the drawing:

Figure 1 is a composite view in perspective of a container, a cover member, and a sealing ring for uniting the cover member to the container, the parts being separated from one another to show their constructions;

Fig. 2 is an enlarged fragmentary section of a container and its closure member, the latter being illustrated in its first inserted position with in the open end of the container; 7 V

Fig. 3 is a view similar to Fig. 2 illustrating the container closure member furtherinserted within theopen end of the container; and

Fig. 4 is a view similar to Fig. 2 illustrating the fully sealed position of the closure parts as held in position by a sealing ring. r

The drawing illustrates an embodiment of the present invention, there being disclosed a container comprising a can body I l and a bottom end I2 secured thereto in any suitable manner. The body, ll may be reduced in diameter at its upper end to provide a neck l3 havingits outer edge formedinto an outwardly extending semi-circu-. lar curl l 4 which preferably terminates in a horizontal ledge l5 extending inwardly and abutting the outer wall of the can body. 3

This type of container is largely used for the packing of white lead, paint and similar relatively heavy materials and in such'a container it is highly desirable to provide a tight seal between the body andits cover closure member. An initial sealing of these parts just after the container is filled with its contents puts such a filled container in condition for shipping or other distribution to the consumer and subsequent sealing of these parts, after the container has been opened, prevents drying out of the paint, lead or other contents during its consumption.

A preferred form of closuremember is illustrated as a drawn cover, l6 provided with a vertical annular drawn friction wall [I which merges 2 adjacent its lower region into a circular panel I 8 and above into an outwardly projecting flange I9. The outer periphery of the flange l9 terminates in a crimped or hooked edge 2| which tightly engages a tubular gasket 22 formed of rubber or other suitable material. This tubular gasket when in its clamped position in the edge 2i is squeezedtogether along an annular outer wall as illustrated in Figs. 2 to 4 inclusive.

Such a connection between't'he cover andgasw ket holds the latter at all times in proper position to effect a seal when the cover is used as a closure for the container, this gasket'being permanently secured to the cover. There is, therefore, no danger of the gasket becoming lost or misplaced and no danger of making an imperfect closure by attempting to close the cover mem- 1 her without a gasket.

In the sealing operation, the cover it is inserted within the upper end of the container body I I andforce'd downwardly until its tubular'gasket 22 is pressed against the curl M of the body, the final assembled position being illustrated in Fig. 3. The cover and body may ;then be united, a ring 25 being preferably used for this purpose. *Such a ring 25 (Fig. l) is of inverted U-shape or channel form in cross-section, being prefer- ,ably'drawn or otherwise ionhed from a strip of sheet material. This form; of ring 25 may have ends 26 which extend adjacent one another prior to application of the ring to the container. Such a ring 25 embodies" an inner wall 2'! which terminates in a curl'28 and an outer wall 29 spaced from and parallel to the wall 21'. When applied to the container body and its assembled cover member (Fig. 4) the wall 21 fits inside of the wall I? of the cover and the wall 29 fits over and outside of the curl I4 and gasket 22. The ends 26 of such a ring in this assembledposition are overlapped in the usual manner.

, The outer end of the wall 29 is curled at 3i and afterthe ring has been fully applied to the container body and cover, this outer part of the Wall is bent inwardly and beneath the wall I5 of the body (Fig. e) This finally sealedposition tightly holds the cover It within the end of the can body II and holds the gasket 22 closely compressed between the cover wall It and the can body curl M. This gasket closes any spaces between these parts and provides an efficient seal or joint. Such a seal, while being tight may nevertheless be easily broken when it is-desiredto open the container and gain access to its contents by merely stripping off the sealing ring 2 5 in the usual manner. 7

The use of such a tubular gasket 22 provides maximumresiliency and effects a highly-efficient joint or seal; ,This gasket, being secured at all times with the covergIB, is always in proper position to eifect the seal whenthe cover andicon tainer body havebeen brought into proper sealingrelationship. g, V g

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of itsmaterial advane tages, the form hereinbefore described being merely a preferred embodiment thereof. Id m 1. Acontaine'r', comprising abody member hav-v ing a curl, a closure member provided with a 75 flange, and an annular gasket round in cross section secured to said closure member by crimping engagement with its flange, said gasket being confined between said closure flange and said body curl when said closure member is in sealing position on said body.

2. A container closure for sealing the open end of a container, comprising a closure member provided with a flange, and an annular gasket round in cross section secured to said closure member by crimping engagement with its flange.

3. A container closure for sealing the open end of a container, comprising a closure member provided with a flange, and a tubular annular gasket having a portion of its adjacent walls at an outer periphery thereof pinched into crimping engagement with said flange and holding said gasket permanently on said closure member.

4. The combination of a container, a cover adapted to be compressed thereon, and an annular tubular gasket clamped at its outer portion to the cover and free relative to the cover at its inner portion.

5. A container closure for sealing the open end of a container, comprising a cover member having an outwardly projecting flange, an annular gasket substantially coextensive with said flange, said gasket being of substantial thickness and adapted to be permanently held within said flange by crimping the marginal edge of the flange over a marginal edge of the gasket, thereby compressing said gasket edge and leaving the opposite inner gasket edgefree and uncompressed and pendent from the flange before the closure is applied to a container.

7 6. A container closure for sealing the open end of a container, comprising a cover member having a transverse sealing flange adapted to overlie the top edge of a container body, an annular gasket adapted to lie within said flange, said gasket having a pendent portion and an attaching portion permanently held under said flange by integral portions of said flange crimped over a marginal edge of the gasket, thereby compressing said gasket at the point of crimping and leaving the pendent portion of the gasket free and uncompressed under said flange before the closure is applied to a container, the pendent portion of the gasket being of greater thickness than the two thicknesses of the cover flange where the gasket it attached.

7. The combination or" a container member and a closure member having gasket compressing parts and an annular gasket having a free portion substantially round in cross section and a flattened portion permanently secured to one of said members by a part crimped thereabout.

8. A container closure, having a substantially flat outwardly extending marginal flange, and an annular gasket substantially coextensive with said flange and having an exposed portion circular in cross section, said gasket further including a flattened portion interlocking at one side with the edge of said flange. Y

9. The combination of a can body having a closure flange, a can end adapted to fit within said body, and a gasket the outer portion of which is permanently secured to the peripheral edge of the can end before its application to the body, said gasket having an inner freely depending portion terminating near the can body Wall and being adapted to be compressed in annular form between the top side of the flange of the can body and the underside of the can end when the can end is applied to the can body.

ARTHUR A. SAALBACH;