Closure plug

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8991633
APP PUB NO 20130264345A1
SERIAL NO

13908640

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An externally threaded closure plug for tightly closing off the internally threaded opening in shipping and storage containers such as drums, pails and the like. The plug is formed as a cup having a bottom wall and threaded cylindrical sidewall terminating in a circumferentially enlarged rim. Immediately beneath the rim of the plug is a gasket seat defined by the undersurface of the plug rim, the plug sidewall and an annular gasket retaining lip lying in a plane parallel to the undersurface of the plug rim. In use, the plug is screwed into and out of a container wall opening, having an internally threaded portion and an unthreaded portion, the sealing gasket being compressed between the unthreaded opening portion and the plug gasket seat and lying in close proximity to the internal thread. The gasket seat acts to prevent interengagement of the sealing gasket and the opening internally threaded portion.

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First Claim

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Family

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Patent Owner(s)

  • GREIF INTERNATIONAL HOLDING BV

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kars, Herman P Delft, NL 11 52
Van, De Klippe Cornelis R West Chicago, US 12 135

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