US2035179A

US2035179A - Container sealing means

Info

Publication number: US2035179A
Application number: US584036A
Authority: US
Inventors: George J Meyer
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-12-31
Filing date: 1931-12-31
Publication date: 1936-03-24
Anticipated expiration: 1953-03-24

Description

March 24, 1936. MEYER. 2,035 179 CONTAINER SEALING MEANS Filed Dec. 31, 1951 WI TN ESSES Patented Mar. 24', 1936 UNITED STATES PATENT OFFICE CONTAINER SEALING MEANS George J. Meyer, Milwaukee, Wis. Application December 31, 1931, Serial No. 584,036

2 Claims. goi. 215-38) The invention relates to containers, such as bottles, jars, and the like, and to closures there- An object of the invention is to provide a contamer, such as a. bottle or the like, having. a

slightly tapered sealing surface about its side walls for receiving thereon the side walls of a.

cup-shaped closure which is pressed into place. and which is capable of adapting itself to slight irregularities of the sealing surface of the container, the sealing surface being of such character as to minimize damage thereto and even if damaged presenting ample-surface for securing a perfect seal.

Another object of the invention is to provide a cup-shaped closure having a resilient liner or packing within the side walls thereof for engaging the sealing surface of the container onto which the closure is pressed.

A further object of the invention is to provide a cap in which the liner is formed of a material capable of being softened by heat as the closure is applied to the container to thereby secure a permanent seal.

A further object of the invention is to provide a vitreous container which is of strong and durable construction and in which the apertured portion thereof is provided with spaced circumferentially arranged projections, the projections protecting the cap sealing surface of the container, presenting ledges or abutments to facilitate prying off the closure, and presenting cam surfaces for engaging lugs on a closure for drawing the closure onto the container, the spaces between the container projections permitting an opener to be applied to the cap.

A further object of the invention is to provide a container closure having longitudinally extending tongues which are accommodated 40 within the spaces between the container projections and are adapted to be wired or otherwise secured to thecontainer for additional sealing purposes.

The invention further consists in the several 45 features hereinafter set forth and more particularly defined by the annexed claims.

In the accompanying drawing, Fig. 1 is a sectional elevation of the neck portion of a bottle embodying the invention and carrying a closure 50 of the invention;

Fig. 2 is a top view of the bottle;

Fig. 3 is a fragmentary side view of the neck portion of the bottle showing a modified form of closure applied thereto;

Fig. 4 is a sectional view of the neck portion of the bottle taken along the line 4-4 of Fig. 2;

Fig. 5 is a fragmentary side view of the neck portion of the container, showing in section another modifled form ofclosure applied-thereto, and.

Fig. 6 is a bottom view of the closure shown in Fig. 5.

In .the drawing, the numeral Ill designates a container of vitreous material, here indicated to be a bottle. The neck portion ll of the bottle 10 is provided with an enlarged head l2 having a smooth exterior conical sealing surface-l3 converging upwardly, the conical surface being slightly tapered in the ratio of approximately 1 in 16. The conical surface [3 merges at its lower 15 portions into a cylindrical surface ll.

A plurality of radial projectionslli are integrally formed on the neck portion ll of the bottle and extend upwardly to the conical surface.l3. The projections iii are rounded at their 20 side edges, as seen in Fig. 2, and at their upper edges present ledges IT for receiving a prying tool, as hereinafter described. The projections l6 protect. the conical sealing surface Hi from chipping or other damage. The lower edges. of the projections iii are provided with cam surfaces l8 for engagement with parts of a closure, as hereinafter described. I In that form of the invention shown in Fig. 1, the bottle is provided with a cup-shaped sealing 3o cap l9 which is pressed onto the slightly conical surface I3 of the bottle. The sealing cap is formed of sheet metal and is provided with a resilient liner or packing sheet 10, which may be formed of'paper, rubber, parchment, composition, or other material, best suited for the goods to be sealed in the container, such as milk, wine, beer, or carbonated beverages. The metal selected for the cap may be of various kinds; lac-' quered black steel would be suitable for milk 40 bottles; tinnedsteel would be suitable for carbonated beverages; and copper or bronze for champagne and wines, etc. The metal is preferably rough on its inner side to secure better adhesion of the resilient liner. The lined caps may be formed by any suitable process such as that disclosed in my co-pendin'g application for sheet metal processing, Serial No. 339,174, filed February 11, 1929.

The side walls of the cap have substantially the same taper as the head of the bottle, thus permitting the cap to be firmly pressed onto the bottle without damaging the liner. The caps when pressed onto the bottles. will adapt themselves to varying diameters. or slight variations ventional type of bottle is chipped, the bottle must in rotundity of the bottle heads, the side walls of the caps being suflicientlydeformable for this purpose. The caps will have a uniform sealing pressure regardless of such variations, if a uniform capping pressure is applied. Even if the conical surface ii ofthe bottle head is damaged, it will still have ample area for a perfect seal; whereas, if the fragile top sealing edge of the canbe discarded. The taper selected for the side walls of the bottle head is suiliciently below the angleofsliptoinmost casesrequireagreater pressure to remove the cap than to apply it to the container, particularly after the cap has set a short time. The fit of the cap on the bottle is sufficiently tight so that it can easily withstand considerable internal pressure in the bottle, such as may exist when the bottle contains a carbonated liquid. The cap isretained insealing engagement with the bottle by the peripheral tension set up in the side walls of the resilient cap during the application of capping pressure. The elasticity of the deformable sheet metal cap maintains this sealing tension, and the yielding character of the cap permits the use of a comparatively thin liner. when the cap is applied, the side walls are stressed considerably, but preferably without exceeding the elastic limit of the metal.

To loosen or remove the cap, a prying tool may be inserted between the ledges l1 and the lower edge of the cap. The hooked or cut end of a tool may also be entered between the head and the side walls of the cap, the spaces between the lugs I providing clearance for this purpose. The

lower edge of the cap may be provided with a bead I! to re-enforce and stiffen the cap, the

outturned lower edge of the liner being clampedwithin the bead. The cap is preferably of such stretching at the edge of the cap side wall so that this edge is approximately as resistant to stretch as other portions of the cap side walls.

formed tongues l2| which lie in the spaces between the bottle projections l8 and have their lower ends crimped over, or otherwise secured to a sealing wire I22 or'other sealing band surrounding the bottle neck below the projections l B.

In the modified form of construction shownin Fig. 5, the bottle 10 is provided with a bottle cap or hood 2| 9 having a resilient liner 220 engageable with either the top or tapered surface of the bottle head, or with both of these surfaces. The cap H9 is provided with an enlarged skirt 22! which surrounds the bottle projections l8 and is provided with lugs 222 at its lower edge engageable with the cam surfaces l8 of the bottle projections I. The cap M9 is drawn into sealing engagement with the bottle by the cam engagement between the lugs 222 and cam surfaces It when the cap is given a partial turn. This type of cap or hood is suitable for temporary use after the other sealing cap is removed. In applying or removing the cap 2 IS, the lugs 222 pass'through the spaces between the bottle projections I. In some instances, the liner may be omitted from the cap 2l9. When the cap is provided with both sideand top sealing surfaces, the cap is capable of use for both shipping and temporary service, thus dispensing with the need for an additional cap. The side seal, which is the shipping seal, is established without engaging the cap lugs on the container cam surfaces, the cap being pressed onto the bottle in the same manner as the cap of Fig. 1. The removal of the cap preferably destroys the side seal, and the, cap is thereafter capable of temporary or service use,

1. A container closure, comprising a sheet meta1 cap having a skirt provided with an out-turned bead, and a packing liner for said skirt having a reversely turned edge portion extending over between said bead and the outer face of said skirt to resist relative shifting of the liner and skirt when the closure is forced axially onto a container.

GEORGE MEYER.

the top seal being established by the cam con-