Whirlpool tub with automatic pre-flushing of the system

Details Whirlpool tub with automatic pre-flushing of the system Whirlpool tub with automatic pre-flushing of the system

1988-12-15

1990-02-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

2394165, 239452, 239570, 4542, B05B 712

Patent

active

049019260

ABSTRACT:
A tub including a fluid system has a pump which includes a suction side and a pressure side; a nozzle for introducing a water-and-air mixture into the tub; the nozzle having a nozzle portion; a pressure line connecting the pressure side of the pump with the nozzle portion; a suction opening provided in a bottom region of the tub; and a suction line connecting the suction side of the pump with the suction opening. The fluid system further has a valve provided in the nozzle portion for cutting off fluid flow to the tub; an overflow line having a closable vent opening and being coupled to the suction side of the pump; a device for selectively allowing or blocking fluid communication between the overflow line and the suction line of the pump; and a supply source for introducing a cleaning agent at a location upstream of the nozzle as viewed in a direction of fluid flow therethrough.

REFERENCES:
patent: 2784013 (1957-04-01), Bletcher et al.
patent: 3702684 (1972-11-01), Bevengut
patent: 3942724 (1976-03-01), Mogarski
patent: 4408721 (1983-10-01), Cohen et al.
patent: 4671463 (1987-06-01), Moreland et al.
patent: 4768718 (1988-09-01), Faulkner
patent: 4800046 (1989-01-01), Malek et al.

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