Storage tank and floating roof with a gauge well having a floati

Details Storage tank and floating roof with a gauge well having a floati Storage tank and floating roof with a gauge well having a floati

1980-01-10

1981-04-07

Hall, George T.

Receptacles

Closures

Floating closure

B65D 8842

Patent

active

042600685

ABSTRACT:
A floating vapor seal is suspended in a slotted gauge well that extends through a floating roof of a petroleum product storage tank. It has a flexible, product resistant layer that contacts the inside walls of the gauge well near the level of product in the well. The floating roof contacts the product around the gauge well and has a seal between it and the outside of the well.

REFERENCES:
patent: Re29270 (1977-06-01), Nelson
patent: 2237461 (1941-04-01), Tokheim

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