Liquid purification or separation – Structural installation – Closed circulating system
Patent
1988-07-20
1989-06-06
Fisher, Richard V.
Liquid purification or separation
Structural installation
Closed circulating system
210236, 210238, 210923, 210405, 4490, 4496, E04H 320
Patent
active
048369209
ABSTRACT:
The present device includes a recoiling roll of screening in a shape of an elongate rectangular web which is affixed to a vertical, rotatable spool at one end and a wand collar at the other. The screen roll is vertically oriented on a mounting frame which is affixed to the side of the pool, preferably adjacent to the automatic skimming water trap. The device may also include an outer canister with wiper brushes for wiping away debris which has been accumulated on the screening as it is retracted.
REFERENCES:
patent: 2367997 (1945-01-01), Chambers
patent: 4053412 (1977-10-01), Stix
patent: 4140634 (1979-02-01), Harry
patent: 4295755 (1981-10-01), Meyers
patent: 4472842 (1984-09-01), Jarrett
patent: 4480800 (1984-11-01), berg et al.
patent: 4557001 (1985-12-01), Burkhart
Fisher Richard V.
Gore Gregory J.
Lee Coreen Y.
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