US 1842261 A
Description (OCR text may contain errors)
Jan. 19, 1932. GARWQOD 1,842,261
CLOSURE FOR BOTTLES, JARS, AND THE LIKE Filed Ma 12, 19:50
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Patented Jan. 19, 1932 UNITED STATES PATENT orrics CHARLES B. GARWOOD, OF LINTHICUM HEIGHTS, MARYLAND, ASSIGNOR T CARR- LOWREY GLASS 00., OF BALTIMORE, IVIARY LAND CLOSURE FOR BOTTLES, JARS, AND THE LIKE Application filed May 12,
This invention relates to a closure designed primarily for use with glass bottles, jars, and similar containers.
It is an object of the invention to provide a closure which does not require a neck finish having screw threads or other protuberances which are usually necessary for engagement by a closure but permits the use of a container having a smooth neck finish which can have a pleasing appearance when the closure is not in position thereon.
It is another object to provide a closure utilizing a gasket adapted to be compressed between relatively movable portions of the closure and to expand radially into frictional contact with the closure.
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.
In the accompanying drawings the preferred form of the invention has been shown.
In said drawings Figure 1 is a section through a container with the present invention applied thereto prior to being secured in place.
Figure 2 is a similar view showing the closure secured to the container. 7 l
Figure 8 is a plan view of the closure.
Referring to the figures by characters of reference, 1 designates the cap portion of the closure which can be made of any material desired and is formed with a central opening 2. A circular rib 3 is formed on the bottom face of the cap and is concentric with the opening, the outer periphery of this rib being beveled so as to constitute a spreading element.
Slidably mounted in the opening 2 is a stem 4 projecting from a disk 5 formed with a peripheral flange 6. This flange provides a seat for supporting an expansible gasket 7 O of rubber or other suitable material. The
parts are so proportioned that when the disk 1930. Serial No. 451,782.
is assembled with the cap the rib 3'will be located close to the periphery of disk 5 where it can wedge between the disk and the supported gasket.
. Stem 4: can be screw threaded for engagement by a nut 8 forming a knob which can be of any desired size and shape.
If desired, an annular apron 9 can be provided at the margin of the cap 1 for encircling the neck N of a container 0.
Under normal conditions the external diameter of gasket 7 is less than the internal diameter of neck N, and disk 5 can be inserted readily into the container.
After the closure hasthus been placed the knob 8 can be rotated to draw the disk 5 toward cap 1. This will force gasket 7 against the beveled outer surface of rib 3 and cause the gasket to expand against and tightly en gage the inner surface of the neck. Thusa tight seal will be produced and at the same time the closure will be held securely to the container.
Obviously various modifications of this device can be made to adapt it for use with different kinds of containers and means other than the knob-shaped nut can be employed for drawing the disk 5 toward the cap 1 to place the gasket under compression and expand it.
Whilethe structure is especially useful in connection with glass containers and can be made of glass, it is to be understood that other materials may be used in the manu facture of any or all of the parts other than the gasket, which must be of a resilient material capable of radial expansion when sub jected to compression.
The closure can be removed readily simply by relieving the gasket from compression so that it will contract to its normal state.
What is claim-ed is:
1. A closure for containers including an apertured cap having an annular support ing flange, a wedg'ing element depending therefrom and extending continuously around the aperture in the cap, a disk insertable into a container, a gasket supported thereby, said element, disk, and gasket being surrounded by the flange, a stem on the disk slidable in the opening, and means mounted on the cap and engaging the stem for shifting the disk toward the cap thereby to wedge said element between the disk and the gasket, said gasket and flange providing an annular channel for the reception of that portion of a container to be engaged by the gasket when subjected to the action of the spreading element.
2. The combination with a container having a neck portion, and an exterior annular shoulder on said portion below the end thereof, of a closure having an annular flange bearing upon the shoulder to support the cap out of contact with the end of the neck portion, a Wedging element depending from the cap and extending continuously around the aperture in the cap, a disk insertable into said neck portion, a gasket supported thereby, a stem on the disk slidable in the opening, and means mounted on the cap and engaging the stern for shifting the disk toward the cap and wedging said element between the disk and gasket, said flange and gasket providing an annular channel in Which the neck portion is seated for engagement by the gasket when subjected to the action of the Wedging element.
In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.
CHARLES B. GARWOOD.