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US 5,947,326 AGranted
Bung and stopper
AssigneeAlasco Rubber & Plastics Corporation
InventorsWilliam John O'Hern, Michael Patrick O'Hern, Wilbert E. Rojewski
Life of this patent
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AssigneeAlasco Rubber & Plastics Corporation
InventorsWilliam John O'Hern, Michael Patrick O'Hern, Wilbert E. Rojewski
Estimating the term…
A bung comprises a deformable member with a generally cylindrical middle portion generally coinciding with the bunghole when inserted, and upper and lower frusto-conical ends which increase in diameter as each end extends from the middle portion. The middle portion is preferably of a size less than the hole to facilitate insertion of bung into and removal from the bunghole. Where the hole is tapered, the middle portion is similarly tapered. The spool-like shape of the stopper helps to prevent unintentional disengagement of the bung from the hole and to prevent overinsertion of the bung into the hole. The bung may further comprise one or more pull tabs to facilitate removal. The bung may define a bore to allow gas pressure to escape from the container, thus acting as a stopper. A rigid annular insert at the opening of the throughbore prevents deformation of the circular shape of the opening.
A bung for sealing a hole in a container, comprising a deformable and resilient member having a middle portion with generally circular ends and a side wall having at least a first diameter and a length;
A bung for sealing a bunghole, comprising:
A bung, sized to match a bunghole which has a outer diameter, inner diameter and depth, said bung comprising, a deformable and resilient member having:
Dependencies are inferred from the claim text.