Closure assembly

Details Closure assembly Closure assembly

1993-06-04

1994-11-08

Shoap, Allan N.

Receptacles

Closures

Having gasket or packing

220320, 220321, B65D 5300, B65D 4532

Patent

active

053619285

ABSTRACT:
A closure assembly for sealingly closing the open top end of a material holding drum includes a cover and a rubber gasket. The cover has a central circular wall of a size corresponding to the drum open end and a peripheral flange which defines a downwardly opening annular channel for receiving the drum top end. The channel has a pair of radially spaced sidewalls, and each of the sidewalls has an annular rib for defining a seal receiving space within the channel. An annular rubber gasket is provided in the seal receiving space and has a contoured surface seated on a rounded chime on the top of the drum. The ribs engage opposite sides of the gasket to prevent lateral displacement of the gasket when the cover is fastened to the drum. An annular V-shaped groove on a top surface of the gasket defines a void between the gasket and the cover and in which a portion of the gasket is received when the gasket is deformed.

REFERENCES:
patent: 2723142 (1955-11-01), Stebbins
patent: 4078696 (1978-03-01), Crisci
patent: 4177934 (1979-12-01), Hammes et al.
patent: 4344546 (1982-08-01), Dry
patent: 4347947 (1982-09-01), Hammes
patent: 4500010 (1985-02-01), Schutz
patent: 4651892 (1987-03-01), Boersma
patent: 4674650 (1987-06-01), Hamilton et al.
patent: 4828139 (1989-05-01), Capitani
patent: 4946064 (1990-08-01), VanCucha
patent: 5065885 (1991-11-01), Scaroni
patent: 5074428 (1991-12-01), Wildfeuer
patent: 5129537 (1992-07-01), Bordner et al.

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