Self-cleaning whirlpool system for bathtubs in general

Details Self-cleaning whirlpool system for bathtubs in general Self-cleaning whirlpool system for bathtubs in general

1989-04-18

1990-12-25

Cusick, Ernest G.

Baths, closets, sinks, and spittoons

Tubs

Combined with diverse means

4662, 134169C, A61H 3302, B08B 904

Patent

active

049792458

ABSTRACT:
A self-cleaning whirlpool system for spas, including bathtubs, is disclosed. The system comprises a circulating pump connected to a water intake pipe, a filter and a hydraulic circuit having nozzles for whirlpool massage. An air intake circuit is provided for mixing air into the water delivered to the nozzles. Valve means are provided to close the nozzles to form a closed circuit. Cleansing agent is metered into the closed circuit, together with water, and is circulated through the closed circuit by means of the circulating pump. After the closed circuit is cleansed, the dirty water and cleaning agent are drained off.

REFERENCES:
patent: 4237562 (1980-12-01), DuPont
patent: 4383341 (1983-05-01), Altman
patent: 4419775 (1983-12-01), Ebert
patent: 4530120 (1985-07-01), Etani
patent: 4552658 (1983-11-01), Adcock
patent: 4563781 (1986-01-01), James
patent: 4780917 (1988-11-01), Hancock
patent: 4857112 (1989-08-01), Franninge

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