Closure plug and methods of employing the same to maintain a fir

Details Closure plug and methods of employing the same to maintain a fir Closure plug and methods of employing the same to maintain a fir

1993-04-27

1994-03-29

Shoap, Allan N.

Receptacles

Closures

Externally adjustable plug or gasket

220235, 220236, 220 881, 138 89, B65D 5300

Patent

active

052976912

ABSTRACT:
A closure plug consisting of opposing frusco-conical sections to apply lateral forces to axially compress and radially expand o-ring means to seal the plug within an opening through a fire-rated barrier may support or enclose insulating materials filling all or part of the opening through the barrier.

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