US 4,065,024 AGranted

Safety closure for portable receptacles

OwnerMax Raymond Atwellinventor

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Abstract

A safety-adapted pivoted closure device for vessels containing volatile or flammable liquids is disclosed. The disclosed pivoted closure device has a flash arrester and safety vent, with the resulting device being positionable on a vessel, such as a portable receptacle containing gasoline. A spring biases a closure cap on the device toward a closed position, and the spring bias is overcome if a predetermined pressure build-up occurs within the vessel to thus allow the pressure to be relieved. Should this occur, gas and/or fumes are expelled from the vessel, but only through the flash arrester. A handle and linkage assembly are provided for manually moving the cap from a closed position to open the receptacle by overcoming the spring bias thereon with the handle and linkage assembly being designed so as not to prevent release of a pressure build-up within the vessel while the cap is in a closed position. The handle is operatively connected with a linking arm of the linkage assembly by means of a bail, and the handle is movable to a position near the vessel for storage purposes or to prevent accidental opening of the vessel. The device also includes a cylindrical member for adapting a conventional receptacle to receive the safety adapted, pivoted closure device.

Claims6

Dependent claims

A unitary safety pouring and sealing accessory for vessels of the type having a primary opening therein for permitting ingress and egress of liquids and a relatively small venting opening adjacent and coplanar with such primary opening for normally venting the interior of such vessel to the surrounding atmosphere when said primary opening is closed, comprising

flash-arresting means,
intermediate means connected to said flash-arresting means and having a mouth-defining means for the ingress and egress of fluids passing through said flash-arresting means,
cap means forming a closure for said mouth-defining means,
biasing means for resiliently urging said cap means into sealing contact with said mouth-defining means,
securing means intermediate said flash-arresting means and said mouth-defining means for removably securing said unitary safety accessory in the primary opening of such a vessel with said flash-arresting means positioned within such vessel and said mouth-defining means exterior thereof, and an imperforate
annular gasket means and cooperating flange means contiguous with said securing means and encircling said accessory, said gasket means and said flange means being adapted to form a fluidtype seal between said accessory and the vessel around such primary opening therein, said annular gasket means and said flange means having a sufficient outer diameter to overlie and sealingly close the adjacent venting opening in such vessel, whereby the sole means of ingress and egress of fluids into and from such vessel is through said flash-arresting means.

3 more elements

Dependencies are inferred from the claim text.