閉鎖プラグ - Greif International Holding BV

Title:

閉鎖プラグ

Document Type and Number:

Japanese Patent JP4475388

Kind Code:

B2

Abstract:

An externally threaded closure plug (1, 60) for tightly closing off the internally threaded opening (23) in shipping and storage containers such as drums, pails and the like. The plug is formed as a cup having a bottom wall (2) and threaded cylindrical sidewall (23) terminating in a circumferentially enlarged rim (4). Immediately beneath the rim of the plug is a gasket seat (8, 64) defined by the undersurface (4a) of the plug rim, the plug sidewall and an annular gasket retaining lip (9, 61) 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 (28) and an unthreaded portion (30), the sealing gasket (12) being compressed between the unthreaded opening portion and the plug gasket seat (8, 64, 72) and lying in close proximity to the internal thread. The gasket seat acts to prevent interengagement of the sealing gasket (12) and the opening internally threaded portion (28).

Inventors:

Van de Clippe, Cornelis
Callus, Hermann

Application Number:

JP2003561979A

Publication Date:

June 09, 2010

Filing Date:

January 15, 2003

Export Citation:

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