Greif Bros. Corporation

William H Gushard

Robert A Dubois

A closure is provided for a container opening. The opening is defined by a neck extending outwardly from the top of the container. The closure includes a liner cap disposed both interiorly and exteriorly of the neck and defines a central passage. A plug extends across the top of the cap to close off the passage from the exterior. The plug is provided with at least one longitudinal hole. The lower end of the plug has attached thereto a membrane extending across the passage. This membrane does not permit liquids within the container to pass therethrough, but possesses the property of being capable of venting gasses therethrough. A dust cap may extend across the top of the closure during shipment and storage.

Vented closure

An all plastic drum is provided comprising an elongated hollow body member having a circular top end, a circular bottom end, a plurality of flat sides extending between said top and bottom ends, and surfaces blending said flat sides and said top and bottom ends. A bottom end closure extends across the drum bottom end and a top closure extends across the drum top end. The top closure includes at least one recess extending diametrically across the drum. The recess defines a channel which passes beneath a bridge-like structure formed integral with the top closure and spanning the channel.

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Staten Island, NY, United States of America

William H Gushard