US2153807A - Jar cap or closure - Google Patents

Description

A ril 11, 1939. M. E, KLEINERT 2,153,807

JAR GAP OR CLOSURE Filed July 7, 1938 A iiorneys ill Patented Apr. 11, 1939 UNETE ST ATENT OFFIQ 2 Claims.

This invention relates to closures or caps for preserving or similar type jars and has for the primary object the provision of an efficient and inexpensive device of this character which is easy and quick to apply and remove from a neck of a jar and when applied will provide an eflicient seal to prevent preserves or the like in the jar from spoiling due to contact with atmospheric air and which will not corrode or otherwise deteriorate and may be used many times, only requiring in some instances the removal of a gasket or packing ring and the substitution of another therefor.

With these and other objects in view, the invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a fragmentary vertical sectional view illustrating a part of a preserving jar equipped with a closure or cap constructed in accordance with my invention.

Figure 2 is a top plan view illustrating the cap or closure.

Figure 3 is a side elevation illustrating a filler gasket or ring.

Figure 4 is a top plan view illustrating the same.

Figure 5 is a top plan view illustrating the sealing ring or gasket.

Referring in detail to the drawing, the numeral 5 indicates a fragmentary portion of a fruit or preserving jar, the neck thereof being indicated by the character 6 and is provided with an internal annular groove 7. The neck 6 externally is provided with the usual screw threads 8 and cap sealing flange 9. The threads 8 and sealing flange 8 are employed when using a conventional type of cap on the jar. However, said threads and flange 9 are not employed when the present invention is in use.

The present invention consists of a cylindrical body if! having an external diameter which will move freely into the neck 6 and formed integrally with one end of the body it is a flange l! having scalloped edges [2. The body iii where the latter forms onto the flange H flares outwardly to rest on the edges of the neck 6, as clearly shown in Figure 1. A recess I3 is formed in the body opening outwardly through the inner end thereof, the purpose of which is to reduce weight and material in the body.

The body It) adjacent its inner end is provided with an annular groove It to partly receive a gasket or packing ring l5 which is cylindrical shaped in cross section. When the body I!) is inserted fully into the neck 6 the ring I?! enters the groove 1 and thereby establishes an effective seal between the body and the neck to prevent the escape of the contents of the jar and further to prevent the entrance of atmospheric air to the jar. The packing ring or gasket is constructed of rubber or any other material suitable for the purpose, and is of circular shape in cross section as shown in Fig. 1. The flange H having the scalloped edges l2 permits a person to readily grip the flange for the insertion thereof into the neck and also when removing the body from the neck.

Formed in the exterior wall of the body I!) is a, substantially spiral shaped groove I5 which at one end opens into a fiat face ll formed in the edge of the cap or closure.- The purpose of the groove 55 is to receive an instrument or tool and by working the latter downwardly in the groove with the tool or instrument fulcruming on the neck of the jar the body will be prised out of the neck. As soon as the gasket or packing ring i5 moves out of the groove 1 the body is then easy to lift from the neck.

To seal the neck with the cap or closure either when the contents is hot or cold, the body is inserted in the neck and pushed inwardly until the gasket or packing ring moves into the groove 7 which brings about the effective sealing of the cap or closure with the neck and prevents the accidental displacement of the cap or closure from the neck.

To readily adapt the closure or cap to jar necks which may be slightly oversize, a filler gasket I 5' is employed and is positioned in the groove I! under the gasket I5, thereby bringing the gasket l 5 in tight engagement with the oversize neck and consequently effecting an efficient seal between the neck and the cap or closure. The filler gasket 55 may be constructed of rubber or any other material suitable for the purpose and is provided with a lip or ear I 8' to facilitate the removal thereof from the groove when desired. The filler gasket i5 is substantially rectangular shaped in cross section.

It is believed that the foregoing description, when taken in connection with the drawing, will fully set forth the construction and advantages of this invention to those skilled in the art to which such a device relates, so that further detailed description will not be required.

Having described the invention, what I claim is:

1. A closure for preserving jars comprising a body of an external diameter to freely enter a neck of a jar, a flange formed on one end of the body to engage with edges of the neck, said body having a groove, a gasket located partly within the groove adapted to enter the groove of the neck, said flange having scalloped edges to permit a firm grip to be obtained thereon, said body adjacent said flange increasing in external diameter to rest against edges of the neck, said flange having a flat face, said body having a substantially spiral groove with one end opening into the flat face whereby an instrument may be inserted in said groove and in engagement with the neck and by working said instrument along the latter-named groove bring about prying of the body outwardly of the neck and the gasket thereof out of the groove of said neck.

2. A closure for preserving jars comprising a body to extend into a neck of a jar and including a flange to rest on the neck, a frictional sealing means on the body engaging the neck, said body having a spiral groove extending into the flange to permit an instrument to be moved along said groove and against the neck to remove the body from the neck.

MARGARET E. KLEINERT.

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