Vapor tight floating roof support leg for liquid storage tank

Details Vapor tight floating roof support leg for liquid storage tank Vapor tight floating roof support leg for liquid storage tank

1993-03-08

1994-04-26

Moy, Joseph Man-Fu

Receptacles

Closures

Floating closure

B65D 8840

Patent

active

053059050

ABSTRACT:
The disclosure herein describes a vapor tight floating roof support leg for a liquid storage tank characterized by a leg and a seal at the top of the leg so as to prevent the escape of fugitive volatile organic or other gaseous compounds from evaporation from the surface of the liquid. In one embodiment, the leg is of one fixed length and the seal is comprised of a blind welded, bolted or otherwise firmly affixed to the top of the leg. In another embodiment wherein the support leg is comprised of two pieces, an inner pipe leg slides into a hollow sleeve. The seal at the top of the support leg is comprised of a flange firmly attached to the sleeve, and a blind is welded, bolted or otherwise firmly affixed to an inner leg which may be any predetermined length. The blind is firmly attached to the flange.

REFERENCES:
patent: 3587911 (1971-06-01), Creith
patent: 3915332 (1975-10-01), Pladys
patent: 4018356 (1977-04-01), Szasz et al.
patent: 4243151 (1981-01-01), Bruening
patent: 4244487 (1981-01-01), Kern
patent: 5230436 (1993-07-01), Vaughn

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