Seal for floating roofs of storage tanks

Details Seal for floating roofs of storage tanks Seal for floating roofs of storage tanks

1981-09-08

1983-08-09

Smith, Robert I.

Receptacles

Closures

Floating closure

220220, 220224, H05B 100, A45D 104

Patent

active

043973990

ABSTRACT:
A sealing assembly comprising a flexible shield having one end rigidly connected to an upper rim portion of a floating roof movably disposed within a storage tank and having the opposite end thereof extending upwardly and outwardly toward the inner periphery of the tank, a flexible wiper blade connected to the outwardly extending end of the shield for engaging the inner surface of the tank wall, the combined shield and wiper blade being of a length greater than the average width of the rim space for assuring an efficient sealing engagement of the wiper blade with the inner periphery of the tank wall even during lateral movement of the floating roof within the tank, and a yieldable film or sheet interposed between the shield and the rim of the roof for assuring an efficient seal therebetween.

REFERENCES:
patent: 3618813 (1971-11-01), Nishkian
patent: 3795339 (1974-03-01), Barbier
patent: 4273250 (1981-06-01), Kinghorn et al.
patent: 4276991 (1981-07-01), Gunther

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