US1449629A - Sealing cap - Google Patents

Description

Mar. 27, 1923.

J. E. SHARPE.

SEALING CAP.

FILED MAR-11,1922- PISA- Fuss.

I III "I.

INVENTOR 90%. 6. W 53 m v- 5 WlTA/SSES Patented Mar. 27, 1923.

1,449,629 PATENT OFFICE.

UNITED STATES JOHN E. SHARPE, OF NEW KENSINGTON, PENNSYLVANIA, ASSIGNOR T0 ALUMINUM SEAL COMPANY, OF NEW KENSINGTON, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

SEALING CAP.

Application filed March 11, 1922. Serial No. 542,900.

T 0 all whom it may concern Be it known that 1, JOHN E. SHARPE, a citizen of the United States and a resident of New Kensington, in the county of VVestmoreland and State of Pennsylvania, have invented a new and useful Improvement in Sealing Caps, of which the following is a specification.

This invention relates to bottle and jar closures and particularly to a closure for use with a jar or bottle having interrupted threads or lugs upon its neck with which a port-ion of the closure cap engages to seat the top thereof upon the mouth of the container.

Objects of the invention are to provide an improved form of inturned qr beaded rib to engage the lugs upon the ar or bottle; to provide a cap having internal non-yielding beaded ribs so as to seat firmly upon the container mouth and to present a smooth exterior possessing a pleasing appearance; to provide a cap, the beaded ribs of which are completely closed throughout their extent; to provide a cap in which the inturned ribs have substantially the same radial dimension regardless of its varying height and which is adapted to contact the exterior surface of the container throughout an appreciable area whereby to increase its effectiveness as a seal and to permit the employment of comparatively short lugs; and to provide a cap possessing the above named advantages which is simple in construction and economical to manufacture.

It is also an object to provide a cap adapt ed as a reclosure cap, that is,' a cap which may be employed on bottles and jars after a non-replaceable closure with which it is originally sealed has been removed.

These, and other objects of the invention, will more readily appear when taken in connection with the following description and the appended claims.

In the accompanying drawings, Fig. 1 is,

a vertical sectional view through one embodiment of the invention adapted for use in connection with narrow necked containers, showing a' cap seated upon the mouth thereof; Fig. 2, a view similar to Fig. 1, showing the cap detached from the container and in which the special sealing disk is not employed; Fig. 3, a bottom plan view of the cap shown in Fig. 1; Fig. 4 a top plan view showing the mouth of the container and the lugs with which the beaded ribs of the cap engage;Fig. 5 an elevational view showing the cap illustrated in Fig. 2 and its relation to the several parts when in its seated position; Fig. 6, a vertical sectional view through a modified form of the invention adapted for wide-mouthed bottles or jars; and Fig. 7,'a transverse sectional view of the form illustrated in Fig. 6.

The closure illustrated in Figs. 1 to 5 is particularly intended for use in connection with containers having long, narrow necks, the body of a bottle of such form being indicated at 1 and its neck portion at 2 on which the elongated lugs such as shown at 3 are formed and with which the inturned beads 4 of the cap engage.

The form of cap illustrated in these fig 4 ures consists of a top 5, from which depends a skirt 6, provided with the strengthening corrugation 7 at its intermediate portion and the inturned beads 4 at its lower marginal edge.

The entire cap is fabricated from a single piece of metal, the beads 4 being formed by turning or rolling inwardly suitably shaped portions of the blank from which the cap is made. The beads are completely closed from end to end so as to leave no raw edges exposed to contact the lugs 3 when applied to the container and to form a tubular rigid bead which is non-yielding. The lower face 8 of the bead lies flush with the lower edge of the skirt 6, while its upper face 9 inclines towards the top 5 and, although the body is of tubular form, it is not circular in cross section but somewhat flattened, as clearly shown in Figs. 1 and 2, so as to render the inner face 10 substantially parallel to the depending skirt and to afford an appreciable area adapted to contact the exterior surface of the neck 2. In order to insure the inner face 10 of the beads contacting the container neck throughout its entire extent to prevent lateral movement of the cap, and to enhance the effectivenessof engagement with the lugs 3, the radial dimension thereof is uniform, as clearly shown in Fig. 3.

Any desired number of beads may be used, two being preferably employed in this form of cap,the same being spaced apart to leave open spaces 11 and 12 therebetween, as shown in Fig. 3, receiving the lugs 3 to permit application of the cap to the container, the width of the spaces being slightly greater than the length of said lugs.

It is often found desirable to provide a special sealing disk in connection withthe cap which will seat upon the lip of the container. Such a disk, made of cork, is indicated at 13, being cut to such size as to be firmly retained within the cap. and adapted to be applied to the container together with the cap as a unit.

In use, the cap is merely placed over the neck of the container insuch positionas to permit the lugs 3 to pass through the spaces 11 and 12 between the beads t, after which the cap is rotated to bringtheinclined upper faces 9 below the lugs. Continned turning movement of the cap will gradually force thetop 5 towards the body of the container and firmly seat the same as shown in Figs. 1 and 5. In order toremove the cap, the same is simply rotated in the opposite direction until'the spaces 11 and 12 are brought into alignment with the lugs 3, after which it maybe lifter therefrom.

The cap described is intended to be used generally for the purposes for which caps of this type are employed and maybe used on wide as well as narrow mouthed containers. It has been found quite convenient as a .reclosure cap on jars originallysealed by the so-called Goldy seals, in which a disk such as shown at 20 in Fig.v 6 isiheld tightly in place by a flanged annulus of thin metal partially embracing said disk and container, it being necessary to disrupt or tear away said annulus in order toremove the disk to gain access to the jar. Byproviding the neck portion of containers originally equipped with such seals with the. lugs 21, afterthe same have been opened, the disk 20 may be subsequently seated.by a cap such as shown in Fig.6. The'beads 22 of this modified form are identical in construction and mode of operation to those shown in Figs. 1 to 5, except that four in number are employed to accommodate the cap to the larger sized open mouth of the jar, and in this form the depending skirt 23 is not provided with a strengthening corrugation. It is obvious-that the top portion in this form need not completely cover the container but may be in the form of an annular flange of suificient width to contact.

the disk 20 only in the region of its peripheral edge 24. This modified cap proyides a convenient replaceable closure convenient in many instances where the entire contents of the jar, originally sealed in the manner stated, is not emptied at one time, thus necessitating several reopenings before the entire contents is consumed and yet requires a sealing cap when not in use. It is equally obvious that in many instances the contents of the container may permit and .rendeixit desirable to originally equip the container with a closure such as illustrated in this modified form.

It is thus seen that the invention provides a very simple, durable, convenient and effcient closure cap for the purposes set forth which can be manufactured at a nominal cost.

I'claim:

1. A closure cap comprising a top, a skirt depending therefrom, an inturned hollow flattened bead formed at the lower margin of the skirt, the lower face of the bead lying in the plane of the lower edge of the skirt and having its upper face inclined towards the top throughout its length, the said bead being completely closed and of the same radial dimension from end to end.

2. A closure cap comprising a. top, a skirt depending therefrom, an inturned hollow flattened bead formed at the lower edge of the skirt and housed within the skirt, an appreciable length of the .flattened inner face of the bead being substantially parallel to said skirt, said bead being completely closed and of the same radial dimension from end to end. i

3. A closure cap comprising a top, a skirt depending therefrom, an inturned hollow bead formed at the lower edge of the skirt, an appreciable length of the inner face of the bead being substantially parallel to said skirt and its upper face inclined towards the top, said bead being completely closed and of the same radial dimension from end to end.

1. A closure cap comprising a top. a skirt depending therefrom, a plurality of spaced inturned hollow flattened beads formed at the lower marginal edge of the skirt, the upper face of the beads being inclined towards the top, and said beads being closed and of the. same radial dimension throughout their length.

In testimony whereof, I sign my name.

JOHN SHARPE.

Witnesses Orro C. Wnrss, .R. F. OswALn.

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