US1764864A - Closure seal - Google Patents

Description

June- 1930- E. F. ANDERSEN ET AL CLOSURE SEAL Filed Aug. 5. 1927 INVENTOR WITNE SS Patented June 11,1930

UNITED -STATES,

PATENT OFFICE,

ELI FRANCE ANIJEBSEN, OF ARNOLD, JOHN E. S EABR OI' NEW IENSING'ION, PENNSYLVANIA, ABSIGNOBS TO ALUMINUM COMPANY 01' AMERICA, PI'I'TB IBURGH, PENNSYLVANIA, A CORPORATION 01 IENNSYLVANIL cLosUnE em Application filed August 3, 1927. Serial No. 210,812.

This invention relates to that type of container seals in which a sealing cap is held upon the top of a container by a disruptable.

metal band having an inwardly turned flange engaging the periphery of the cap and having a skirt spun inwardly to engage an external bead formed on the container.

- As usually constructed, the cap of such seals consists of a substantially flat metal disk overlying the top of a sealing disk which is seated on the mouth of a container and is not'connected to the cap. Accordingly, when the metal retaining band is broken to open the container the seal becomes useless as a reclosure.

The object of this invention is to provide a container seal of the type explained which may be used as a reclosure after the container is opened, and which is of simple,'and inexpensive construction and easily manufactured and applied.

The invention is illustrated in the accompanying drawings, of which Fig. 1 is a vertical central section through the improved closure seal applied to a container in position for sealing; Fig. 2 a similar view of the.

improved seal after the sealing operation; Fig. 3 an elevation of a closure cap applied to a container after removal of a disruptable hand; and Fig. 4. a plan View of a disruptableand.

According to the invention, a container is provided'with a two part closure consisting of a cap and a cap-retaining band. The cap is made of resilient metal, and is provided with a vertical flange from which spaced integrally-formed fingers extend downwardly,

and has a sealing gasket secured to it within its vertical flange. The cap-retaining band,

40 "formed of disruptable metal, is provided at its upper edge with an inwardly extending flange which over-lies the periphery of the cap.

The cap with its attached sealing gasket is assembled inside the cap-retaining band,

and, upon being applied to a container, the lower edge of the cap-retaining band and the downwardly extending fingers of the ca are spun beneath the container head to 'efiectlvely hold the cap and cap-retaining band in tight sealing posltion. When the retaining band is removed, the yielding fingers of the cap, which have been formed to conform to the container head during the spinning operation, continue to grip the bead and hold the ca in sealing position- However, it may be rea ily removed by pressing it upwardly, and may be later applied to the container to form a reclosure seal by simply placing it upon the top of the container and pressing it downwardly to cause its formed and resilient retaining fingers to snap beneath the bead.

Referring to Fig. 1 of the drawings, a container 1, provided at its mouth portion with an outwardly extending continuous annular bead 2, is shown with the improved closure in position before sealing.- The closure comprises a cap 3 of resilient metal and a readilydisrupta'ble metal sealing band 4. The cap 3 is provided integrally with a plurality of d spaced fingers 5 extending downwardly and adapted to yielding engage head 2, and contains a sealing gasket 6 of cork or other suitable material, held within it by a slight downwardly extending skirt 7. Band 4 com- 15 prises an inwardly extending top flange 8 which engages the top of cap 3, and a continuous downwardly extending skirt 9 which fits over fingers 5 and the neck of the bottle.

In forming the seal, gasket 6 is first se- 30 curely seated within cap 3 which is then assembled with the band 4 and. the assembled structure placed over the mouth of the con tainer, the parts then being as illustratedin Fig. 1. Skirt 9 of the band and fingers 5 a;

of the cap are then simultaneously spun inwardly in the usual well known manner to engage the bead 2. By this operation the metal in the upper portionof skirt 9 is drawn downwardly, producing pressure upon cap 3 and securely holding its attached gasket in sealingenglagement with the top of the conthe ca tainer, as s own in- Fig. 2. v

Although various means of breaking the band 4 may be rovided, it is preferred to accomplish this y means of a tearing tab 10, Fig. 4, struck from the central ortion of the metal blank from which the and is formed. To break the seal for removing. the contents'of the container, it is only necessary to engage tab 10 and pull it in the direction indicated by the'arrow on it, thereby tearing through flange 8 and skirt 9. When band 4 has been thus removed, the cap is expose d as shown in Fig. 3, and may then be readily removed by upward pressure on itsedge or beneath its fingers'5. Thereafter, the ca may belefiectively used as a reclosure sea Its fingers 5 being bent inwardly in the sealing operation, and being of resilient nature, readily spring outwardly when the ca is pressed on the container, and thereafter old on the container by their engagement of its ad.

Accordin to the provisions ofthe patent statutes, we ave explained the principle and operation of our invention and have illustrated and described what we now consider to represent its best embodiment. However, we desire to have it understood that, within the scope of the a pended claims, the invention maybe practlced by other forms of construction than that particularly illustrated and described.

We claim:

1. The combination with a container having'an outwardly projecting annular head at its mouth; of a closure seal comprising a cap vformed of a resilient metal and integrally provided with a plurality of spaced inwardly tapering fingers yieldingly engaging said container bead and snugly conforming to it both interiorly and exteriorly, a sealin gasket seated in and secured to said cap, an

a disruptable continuous metal band having at its upper end 'an inwardly turned flange engaging the topof, saidcap and having a sklrt spun inwardly to engage said bead and hold said cap in sealing engagement with the top of the container, said cap upon the removal of said band forming a reclosure for said container adapted to be held thereon by said fingers.

2. The combination with a container having an outwardly projecting annular head at its mouth; of a closure seal comprising a cap formed of resilient metal and integrall provided with spaced inwardly tapermg ngers' y'ieldmgly engaging said contalnerbead and snugly conforming to it both interiorly and exteriorly, a sealing gasket seated in and se cured to said cap, and a disruptable continunames.

ELI FRANOK ANDERSEN. JOHN E. SHARP.

ous metal band having at itsupper end' an inwardly) turnedflange en aging the top of said cap, and having a ski r't spun inwardly

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