Seal for floating roof tank

Details Seal for floating roof tank Seal for floating roof tank

1977-05-20

1978-07-11

Marcus, Stephen

Receptacles

Closures

Floating closure

220226, B65D 8720

Patent

active

040996433

ABSTRACT:
Auxilliary seal for a floating roof tank is provided by a plurality of superposed flexible sheet members arranged above a primary seal about the periphery of the floating roof. The flexible sheet members have outer edges which distort as the assembly passes over rivet heads, butt straps or other protrusions from the inner surface of the tank wall and thus provide the desired seal. The flexible elements also readily accommodate to deviations of the wall from truly circular.

REFERENCES:
patent: 2108380 (1938-02-01), Lentschewsky
patent: 2427171 (1947-09-01), Wiggins
patent: 2459178 (1949-01-01), Moyer
patent: 2551403 (1951-05-01), Wiggins et al.
patent: 2897998 (1959-08-01), Ulm
patent: 3043468 (1962-07-01), Horner, Jr.
patent: 3275183 (1966-09-01), Challenger
patent: 3422981 (1969-01-01), McBrien et al.

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