Seal for floating roof

Details Seal for floating roof Seal for floating roof

1987-11-27

1989-03-14

Moy, Joseph Man-Fu

Receptacles

Closures

Floating closure

B65D 8846

Patent

active

048118591

ABSTRACT:
A sealing system for a liquid storage tank having a pontoon roof or cover floating on the liquid product contained within the storage tank. A stepped metallic shoe is constructed to maintain contact with the inner wall of the liquid storage tank which, in cooperation with a vapor impermeable fabric skirt, functions as a primary seal. A secondary seal, having an "E"-shaped cross section functions to maintain vapor integrity. The structure of these two seals is especially suitable for, respectively, sealing horizontally and vertically disposed rivet seams.

REFERENCES:
patent: 2108380 (1938-02-01), Lentschewsky
patent: 2568728 (1951-09-01), Goldsby et al.
patent: 4099643 (1978-07-01), Wardwell et al.
patent: 4273250 (1981-06-01), Kinghorn, Sr. et al.
patent: 4341323 (1982-07-01), Kerby
patent: 4524878 (1985-06-01), Imhof

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