Floating cover assembly

Details Floating cover assembly Floating cover assembly

1978-08-28

1980-06-17

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

428 12, 428516, 428520, B32B 326, B32B 518, B32B 2708, B32B 2732

Patent

active

042084695

ABSTRACT:
A floating cover assembly encompassing in a first condition a method and apparatus for tensioning a floating cover for a liquid storage reservoir wherein the surface level of the stored liquid varies and in a second condition, a method and apparatus for maintaining a liquid storage reservoir. In the apparatus of the above inventions, a peripheral envelope formed at least adjacent a portion of the peripheral edges of the floatable sheet is adapted to be inflated with a compressible fluid, such as air, for proper tensioning of the sheet as the level of the stored liquid varies in the reservoir and for preventing wrinkling of the sheet while, in the second condition, the peripheral envelop is adapted to be filled with a non-compressible fluid for providing a ballast for the sheet during maintenance operations thereof while the sheet is inflatably supported for maintenance of the sheet and/or reservoir.

REFERENCES:
patent: 3874987 (1975-04-01), Young
patent: 3954537 (1976-05-01), Alfter et al.
Zimmerman et al., "Handbook of Material Trade Names", Supplement I, (1956), pp. 107-108, Pub. Ind. Research Serv., Inc., Dover, N.H.

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