Peripheral seal for floating tank cover

Details Peripheral seal for floating tank cover Peripheral seal for floating tank cover

1990-07-13

1991-08-06

Marcus, Stephen

Receptacles

Closures

Floating closure

220222, 220216, B65D 8846

Patent

active

050369954

ABSTRACT:
A rim space sealing device comprising a peripheral sealing ring of over-lapped shoe segments attached to a floating cover within a storage tank. Spring loaded hanger-pushers and horizontal springs keep the peripheral sealing ring of shoe segments pressed against the tank wall and also keep the floating cover centered within the tank. The space between the peripheral sealing ring of shoe segments and the floating cover is covered by a flexible fabric that prevents product loss. Vertical movement of the individual shoe segments over each other is prevented by a series of circumferentially arranged rods. The over-lap of the shoe segments is restricted by a series of bars forming expansion-contraction spaces.

REFERENCES:
patent: 2634017 (1953-04-01), Moyer
patent: 2737310 (1956-03-01), Ulm
patent: 2784863 (1957-03-01), Fabian
patent: 2801763 (1957-08-01), Ulm
patent: 2855122 (1958-10-01), Ulm et al.
patent: 2888161 (1959-05-01), Springer
patent: 2897998 (1959-08-01), Ulm
patent: 2960252 (1960-11-01), Ulm
patent: 4154359 (1979-05-01), Bissett
patent: 4397399 (1983-08-01), Wagoner
patent: 4540104 (1985-09-01), Kawai et al.

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