Pressure valve device for a cleaning apparatus

Details Pressure valve device for a cleaning apparatus Pressure valve device for a cleaning apparatus

1998-08-10

2000-09-26

Yuen, Henry C.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

137881, 13756535, F04B 4900, E03B 1704

Patent

active

061235091

ABSTRACT:
A pressure valve used in a cleaning apparatus. The pressure valve is provided between a pump motor and a cleaning injector. The pressure valve includes a valve body, a floating valve rod, a ball valve, a compression spring, and an adjusting screw. The valve body is connected to the water supply system via pipings (A, B, C) so that starting and shutting off of the cleaning injector can alter the water pressures in the individual chambers of the valve body, which then causes the opening and closing of the ball valve. Due to the changes in the water pressure within the chambers of the pressure valve, a floating valve rod within the pressure valve will press against a micro switch to control the starting or shutting off of the pumping motor.

REFERENCES:
patent: 4134428 (1979-01-01), Bjorklund
patent: 5099871 (1992-03-01), Cowan
patent: 5571259 (1996-11-01), Takasu
patent: 5694966 (1997-12-01), Holder
patent: 5902094 (1999-05-01), Hoenisch et al.

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