Receptacles – Closures – Floating closure
Patent
1978-06-05
1979-07-24
Hall, George T.
Receptacles
Closures
Floating closure
B65D 8718, B65D 8720
Patent
active
041620224
ABSTRACT:
A tank roof seal is provided for use in the sealing of tanks, such as for example, those used in the oil refinery industry. The tank roof seal comprises a mounting bracket and a shoe resiliently secured thereto. The mounting bracket is attachable about a periphery of a tank roof, which roof floats on the liquid contained in the tank. A flexible fabric seal interconnects the top of the shoe with the top of the bracket. The tank seal includes a turnbuckle for selectively restricting the extension of the resiliently secured shoe from the bracket. Thus, as the tank seal is mounted to the floating roof, as for example occurs for in situ retrofitting, the shoe can be restrained from contacting the tank wall until the retrofitting has been completed. Further, for in situ retrofitting, the bracket of the tank roof seal is adapted to mount directly to the mounts provided on the floating roof for an original seal. In addition, the tank roof seal can itself be included as original equipment.
REFERENCES:
patent: 1666416 (1928-04-01), Griffin
patent: 1900904 (1933-03-01), Berger
patent: 2772805 (1956-12-01), Grundig
patent: 3019935 (1962-02-01), Anderson
patent: 3565279 (1971-02-01), Joor
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