Open faced sandwich barrier

Details Open faced sandwich barrier Open faced sandwich barrier

1989-12-11

1992-02-18

Epstein, Henry F.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

428 99, 428188, B32B 108, B32B 518

Patent

active

050893114

ABSTRACT:
A barrier for closing and sealing a tubular passage while permitting ingress and egress of coating material into and out of the passage and with a mat of expandable adherent material secured to a barrier plate, the expansion and sealing actuated by exposure to curing heat.

REFERENCES:
patent: 4284673 (1981-08-01), Ockels
patent: 4377609 (1983-03-01), Bartoli et al.
patent: 4565723 (1986-01-01), Hirsch
patent: 4657798 (1987-04-01), Guilhem
patent: 4725471 (1988-02-01), Imhoff
patent: 4764408 (1988-08-01), Stedman et al.
patent: 4810548 (1989-03-01), Ligon, Sr.
patent: 4988553 (1991-01-01), Saiki et al.

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