Suction-operated automatic swimming pool cleaner

Details Suction-operated automatic swimming pool cleaner Suction-operated automatic swimming pool cleaner

1987-07-17

1988-08-09

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Submerged cleaners with ambient flow guides

210169, E04H 320

Patent

active

047618485

ABSTRACT:
A suction-operated swimming pool cleaner includes a valve in the outlet for venting applied suction upon contact of the pool cleaner with an obstruction to movement. Venting of applied suction reduces suction adherence of the head to the pool surface and permits reorientation of the cleaner to be free of the obstruction.

REFERENCES:
patent: 2250021 (1941-07-01), Hofer
patent: 2978733 (1961-04-01), Wahlborg
patent: 3263615 (1966-08-01), Hofer
patent: 3803658 (1974-04-01), Raubenheimer
patent: 4023227 (1977-05-01), Chauvier
patent: 4642833 (1987-02-01), Stoltz et al.

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