Sandwich seal fixture

Details Sandwich seal fixture Sandwich seal fixture

1988-08-01

1989-03-07

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

428 76, 428122, 428188, B32B 100, B32B 300, B32B 326

Patent

active

048105481

ABSTRACT:
A sandwich-like fixture of expandable foam material as a core between two registering flanking plates of relatively rigid material and means through the plates securing the expandable material and plates in assembled contact relation. One or more of the plates include stabilizing and orienting feet or tab means for securing the fixture in selected position in relation to elements forming a passageway. The fixture is sized in respect to the passageway so as to provide clearance in order to achieve ingress and egress to the passageway. Then, by actuating the expandable foam material by application of heat the expanding foam closes and seals the passageway by filling the clearance between fixture and walls of the passageway with adhesive foamed material at selected points where the fixtures are positioned.

REFERENCES:
patent: 4565723 (1986-01-01), Hirsch
patent: 4725471 (1988-02-01), Imhoff

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