Seals

Details Seals Seals

1980-03-11

1982-12-14

Thibodeau, Paul J.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

102473, 156 86, 174DIG8, 428 36, 428 40, 428332, 428334, 428335, 428336, 428347, 428349, 428913, B32B 302, B32B 3300

Patent

active

043638430

ABSTRACT:
A recoverable seal for sealing a container, especially an artillery ordinance cannister, comprising a heat-shrinkable continuous annular band having a uniform coat of heat-activatable adhesive on the inwardly-facing surface thereof which has a mean thickness of 0.01 to 1.0 mm and differs from the mean thickness over the surface by at most 25% of the mean thickness. The band may be provided with a tearable region such as a score line to enable it easily to be peeled off the container. After the band has been recovered on the container, the band can be peeled away and a layer of adhesive will remain aiding the ability of the seal to withstand pressurization and depressurization.

REFERENCES:
patent: 2027962 (1933-03-01), Currie
patent: 2790285 (1957-04-01), Pike et al.
patent: 3483020 (1969-12-01), Giellerup
patent: 3873018 (1975-03-01), Donnay
patent: 4285746 (1981-08-01), DePuy et al.

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