US1858864A - Sealed package - Google Patents

Description

May- 17, 193 2. PQDEL 1,858,864

SEALED PACKAGE Filed Jan. 21, 1929 2. Sheets-Sheet l INVENT 4-14 ATTORNEY May 17, 1932. PODEL 1,858,864

SEALED PACKAGE 21, 929 2 Sheets-Shet 2 .liliiiiiiiiiiiiiiiiiiiiiifiifif I if Patented Ma 17, 1932 UNITED STATES PATENT- OF ICE ABRAHAM room, or new YORK, 1mm, Assmnon 'ro ANCHOR CA? & 01.08am: eon.- .POBATION, or LONG ISLAND CITY, new YORK, A CORPORATION or new YORK SEALED PACKAGE Application filed J'annary 21, 1928. Serial No. 388,847.

constriction of the lower edge of the skirt about the upper end of the container while the cap is on the container. A suitable cork or other disc is interposed adjacent the'cover portion of the cap to bear against the edge of the container for effecting the necessary seal. Other caps are threaded to the containers and still other caps are mechanically sealed to the container by reformation of the skirt to press the gasket against the side wall of the container.

In the caps in which the skirts are reformed while on the container to hold the ca inpo sition or to squeeze the gasket against the sidewall of the container, expensive sealing equipment is required and there is difliculty in removing the caps without proper implements. With screw caps there is a tendency for the cap to corrode or freeze to the container,'making it difficult for the caps to be removed. Then too, the caps have to be applied by hand, where uniformity of seal is not possible, or else expensive machines are necessary.

An object of the present invention is to eliminate the objections noted above by providing a closure cap which may be hermetically sealed to containers without complicated machinery and which may be repeatedly removed and applied for re-sealing purposes, thus preventing spoiling and spilling of the contents and allowing the contents to be dispensed from the original container.

Another object of the invention is to provide an inexpensive closure adapted to form a side seal on a container without the use of expensive machinery.

which may be readily removed by means of a coin or other suitable instrument without marring the cap.

Another object of the invention is to provide a secure hermetic seal resiliently retained in position, which may be moved slightly without impairing its security.

Another object-of the invention is to ro- I -vide a container having a bevelled sur ace adjacent its upper end,a second surface meeting the bevelled surface at an angle to form a shoulder whereby a closure cap may be snapped over the shoulder, a gasket intermediate the skirt of the cap and the bevelled surface so that the closure is resiliently retained in its downward position to efiect a secure seal.

Other and further objects of the invention will be obvious upon an understanding of the illustrated embodiment about to be described or will be indicated in the appended claims, and various advantages not referred-to herein will occur to one skilled-in the art upon employment ofthe inventionin practice.

A preferred embodiment of the inventionv has been chosen for purposes of illustration and description and is shown in the accompanying drawings, wherein Fig. 1 is a side elevational view, partly in section, showing the parts of the package in sealed position. the section being taken through one of the holding projections;

Fig. 2 is a fragmentary sectional view, taken through one of the holding projections, showing the cap at the commencement of the sealing operation Fig. 3 is a fragmentary sectional view,

taken through one of the holding projections,

showing the closure cap as it passes over the shoulder on the container;

Fig. 4. is a sectional view along the line 4-4 of Fig. 2,;

Fig. 5 is a sectional view along the line 55 of Fig. 3;

Fig. 6 is a sectional view along the line 66 of Fig. 1; h

Fig. 7 is a side elevational view, partly in section, of another form of package; and

Fig. 8 is a sideelevational view, partly in section, of a third form of package.

Referring more particularly to the drawlngs, there is shown a container 1 having a bevelled surface 2 adjacent its upper end and an inclined surface 4 at an angle to and below the bevelled surface forming a shoulder 5 therebetween. The inclined surface 4 extends downwardly to a second shoulder 6 adapted to extend outwardly beyond the first shoulder for reasons to be described hereinafter.

A closure cap 7 is provided having a cover portion 8 and a depending skirt 9. The upper part of the skirt is flared outwardly as shown at 10, so that it is substantially parallel to the bevelled surface 2 on the container when placed thereon. Preferably, the lower side of the flare 10 is slightly closer to the container than the upper part, to wedge the gasket into position. The lower part of the skirt may be turned outwardly into a wire edge 11 which is pressed inwardly at a plurality of points to form the projections 12 which are adapted to snap over the shoulder 5 and engage the inclined surface 4. The resilience of the projections causes them to hug the inclined shoulder 4 and to pull the closure cap downwardly as far as possible over the end of the container.

A gasket 14, preferably in the form of a ring, is provided in the upper flared portion of the skirt of the cap to engage the bevelled surface 2 when the closure cap is forced on the container. The gasket may be secured to the closure by a suitable adhesive or it may be sufficiently large to hold itself in position. By forming the seal on the bevelled surface 2, instead of on the edge of the container, there is secured a wedging action between the cap and the container which presses thegasket efi'ectively therebetween. In addition, the side of the container is generally free from flaws, whereas the edge of the container is likely to have defects such as depressions or other irregularities, which affect materially any seal formed between the edge of the container and the cover portion of the cap. The flared portion of the cap and the bevelled surface of the glass being substantially parallel, a considerable movement in a vertical direction is possible without breaking the seal on the container. In addition, the resilient projections 12 on the skirt of the cap tend to pull the cap downwardly on the container which gives a constant pressure against the gasket tending to hold it in proper position.

The skirt of the cap is slightly less in length than the distance between. the lower shoulder 6 and the upper edge of the container. This permits a coin to be inserted between the lower edge of the skirt and theshoulder 6 to pry it ofi. The resilience of the projections 12 and the intermediate portions 15 in the skirt of the cap permit the skirt to be expanded m often as desired. For

example, it will be noted in Figs. 4, 5 and 6 that not only do the projections 12 straighten out slightly but also the intermediate portions 15 bend inwardly so that the cap is considerably distorted from its original shape as it passes the shoulder 5 (see Fig. 5). The elasticity of the metal causes it to spring back substantially into its original shape after the shoulder is passed. This is due to the fact that there is no substantial stretching of the metal but merely a slight bending.

A slightly different form of closure is shown in Fig. 7 wherein the projections 17 are pressed from the skirt of the cap, the lower edge remaining substantially continuous. These lugs engage a substantially cylindrical surface 18 on the container to hold it in position. The size of the cap may be such that a secure grip is attained on the cylindrical surface. The caps may be removed by tapping to loosen the lugs or in any other convenient manner.

In Fig. 8 the container is similar to that shown in Fig. 7 but a groove 19 is formed in the skirt of the cap of such size that it may be stretched over the cylindrical surface 18 to hold the cap firmly in position. This cap may be removed by tapping the lower edge to stretch the groove or in any other suitable manner. It is to be noted also that the containers in Figs. 7 and 8 may be provided with shoulders below the lower edge of the cap to permit the insertion of a coin for prying off these caps.

It will be seen that the present invention provides a sealed package the closure cap of which may be removed repeatedly without marring the cap and applied without complicated machinery and without the use of tools. The cap is resiliently held against the gasket thereby eliminating the impairment of the seal occasioned by jars and accidental encounters with extraneous objects. The cap is completely formed in the course of manufacture and does not have to be reformed during the sealing operation: hence, expensive machinery is eliminated and an inexpensive package results. By forming the se'alon a bevelled surface adjacent the upper edge of the container, flaws in the container at the edge thereof will have no efiect whatever. In addition, a wedging action is secured between the closure cap and the conta ner which a'container having a bevelled surface at its upper end, an inclinedsurface below said bevelled surface meeting the bevelled surface at an angle to form a continuous shoulder therebetween, a second shoulder below said inclined surface, a closure cap having the lower edge of its skirt rolled outwardly to form a wire edge, said wire edge being pressed inwardly at a plurality of points to form resilient holding projections adapted to snap over said first shoulder to hold said cap in position, and a ring gasket secured to the skirt of the cap and interposed between the upper bevelled surface of said container and the skirt of the closure cap to form a side seal therebetween, said closure cap being adapted to be removed by the insertion of a coin between the lower edge of the skirt and the second shoulder on the container. 2. In a sealed package, the comblnatlon of a container having an annular shoulder adjacent the upper end thereof, an inclined por-- tion above and below said shoulder, a' sheet metal closure cap provided with an inclined portion in the skirt thereof, a ring gasket interposed between the said upper incline of the container and the incline in the skirt of the cap, and instruck projections in the skirt adapted to slide on said upper incline and over the shoulder to be held in position by said lower incline, whereby the cap is sealed upon the container.

3. In a sealed package, the combination of a container havlng a shoulder adjacent its upper end, an inclined surface above and below said shoulder, a one-piece sheet-metal closure cap having a rolled edge at the bottom thereof and a pluralityof projections formed from said rolled edge without deformation of the cross-section thereof and adapted to be sprung over the shoulder on said container, and a ring gasket intermediate the skirt of said closurecap and said container adapted to form aside seal therebetween, said closure cap being retained resiliently against said gasket by means of the incline below said shoulder.

4. As an article of manufacture, a closure cap comprising a cover portion, a depending skirt, the upper portion of said skirt being flared outwardly from the cover portion down, a gasket secured to the flared portion of said skirt designed to engage a corre spondingly flared sealing zone on a container, instruck pro ections formed in the lower port1on of said skirt for reslllently engaging an inclined surface on the container for urging the cap in sealed position.

ABRAHAM PODEL.

Images