US2317287A

US2317287A - Closure

Info

Publication number: US2317287A
Application number: US216870A
Authority: US
Inventors: Arnold R Mccombs
Original assignee: Armstrong Cork Co
Current assignee: Armstrong World Industries Inc
Priority date: 1938-07-01
Filing date: 1938-07-01
Publication date: 1943-04-20
Anticipated expiration: 1960-04-20

Description

A 20, 1943. A. R. M coMBs CLOSURE Filed July 1, 1938 Patented Apr-.20, 1943 CLOSURE Arnold It. McCombs, Lancaster, Pa., assignor to Armstrong Cork Company, Lancaster, Pa., a corporation of Pennsylvania Application July 1, 1938, Serial No. 216,870

2 Claims.

This invention relates to closures and, more particularly, to closures for bottles or jars or the like of the type commonly known as lug caps."

The chief object of my invention is to produce a closure of such type which islnexpensive to manufacture and forms a secure seal. An object of my invention is to produce a closure which may be readily applied to containers such as bottles or jars or the like and which may be easily removed and used again for reseal purposes, if desired. A further object is to provide a "lug cap closure which is so constructed that its exterior may be smooth or deformed or decorated as desired. A still further object is to provide a closure in which the raw edge of the skirt is concealed to protect it against corrosion and to prevent possibility of injury to a user occasioned by careless handling of the closure.

The invention relates to a closure for bottles or Jars or the like comprising a cover portion, a skirt depending from said cover portion terminating in a raw edge, and a plurality of spaced inwardly rolled tabs or ears integral with said skirt and forming means for securing the closure to a container, the terminal portion of said skirt between adjacent tabs being turned inwardly, upwardly and outwardly against the interior of the skirt to conceal the raw edge, said rolled tabs extending radially inwardly from said skirt beyond the turned terminal portion thereof.

The attached drawing illustrates a preferred embodiment of my invention, in which Figure 1 is a sectional view of a shell from which the closure is formed;

Figure 2 is a sectional view of the closure; and

Figure 3 is a bottom plan view of the closure illustrated in Figure 2.

Referring to the drawing, there is shown a shell 2, formed of a single piece of metal, having a cover portion 3 and a skirt 4 depending from said cover portion and terminating in a raw edge 5. The skirt 4 is provided with a plurality of depending tabs 6 integral therewith and extending therefrom. Preferably, at least four of said tabs 6 in the specific form illustrated are provided, spaced equidistantly about the skirt of wardly beaded lugs I are rolled to a greater diameter than the bead!) so that they extend radially inwardly from the skirt of the cap beyond the bead and consequently, are free to engage the thread of a container when the closure is applied thereto. Any preferred type of liner may, of course, be employed.

The bead 9 presents substantially the same attractive rounded appearance to the bottom of the closure as the inwardly, upwardly and outwardly rolled lugs l as well as concealing the raw edge of the skirt thereby protecting it against corrosion and obviating the possibility of injury to a user occasioned by careless handling of the closure.

From the foregoing description of my invention, the many advantages of the closure can be the cap. The shells are fed to a machine, of a type well known in the art, which turns the tabs 6 inwardly, upwardly and outwardly to form rounded lugs l which act as means to secure the closure to a container since they are adapted to engage a thread thereon. Simultaneously, the terminal portion 8 of the skirt 4 is turned inwardly, upwardly and outwardly against the interior of the skirt in the form of a bead 9, thereby concealing the raw edge 5. The rounded or inreadily perceived. The closure is inexpensive to manufacture since it may be readily formed from a single piece of metal without the use of expensive machinery. The closure forms a secure seal and can be readily applied to and removed from containers, and may also be used for reseal purposes, if desired, since it is not necessary to break or deform it during removal. The container engaging means of the closure are so designed and constructed as to be concealed from view thereby presenting an attractive appearance to the skirt of the closure.

While I have described and illustrated a preferred embodiment of my invention, it will be understood it is not limited thereto but may be otherwise embodied within the scope of the following claims.

Iclaim:

1. A closure cap having a top and dependent skirt portion, a bead formed on the lower edge of said skirt portion on the inside thereof, said bead being undistorted for its entire length and of the same cross-sectional shape and having portions of larger radii than other portions, said portions of larger radii being adapted to engage suitable projections on a container without interrupting the continuity of the bead.

2. A closure cap having a dependent skirt portion formed with an integral rolled-up continuous bead extending without interruption or distortion completely around the edge of the skirt, said bead projecting inwardly from and concealed by the skirt portion, portions of said bead at spaced points being of less cross-sectional diameter than other portions thereof and of less lateral projection toward the center of the cap than other portions, all portions of the bead being of like cross-sectional shape.

ARNOLD R. MCCOMBS.