Pneumatic, water leakage safety device for washing machines

Details Pneumatic, water leakage safety device for washing machines Pneumatic, water leakage safety device for washing machines

1988-10-14

1989-10-31

Walton, George L.

Fluid handling

With leakage or drip collecting

200 6104, 200 612, 200 83WM, 200 84R, 68207, 137387, 137429, F16K 31122, F16K 31126, F16K 3300, H01H 3518

Patent

active

048770493

ABSTRACT:
A pneumatic safety device designed to prevent water leakage caused by failure of any washing machine component. Said device comprises one or two pneumatically-actuated valves positioned downstream from the machine's water supply faucet. When said machine is being filled with water a small electric pump generates compressed air that opens the water inlet valve(s) against the reaction of springs. A float associated with an electric switch, normally closed when the machine is operating, rises when water leaks occur opening said switch, which shuts off the machine and pump power, and also closes the water intake valve(s).

REFERENCES:
patent: 2885879 (1959-05-01), Bloom
patent: 3334651 (1967-08-01), Clearman
patent: 3344804 (1967-10-01), Lyman
patent: 3464437 (1969-09-01), Zane
patent: 3770002 (1973-11-01), Brown
patent: 4180095 (1979-12-01), Woolley et al.
patent: 4201240 (1980-05-01), Case
patent: 4305420 (1981-12-01), Nussdorf
patent: 4418712 (1983-12-01), Braley

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