Whirlpool tub with automatic pre-flushing of the system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Dec 15, 1988
filing date -
Dec 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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