Adhesion prevention device in liquid surface detecting valve

Details Adhesion prevention device in liquid surface detecting valve Adhesion prevention device in liquid surface detecting valve

1990-12-21

1992-01-21

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137433, F16K 1700, F16K 3122

Patent

active

050820168

ABSTRACT:
A first port is provided in a fuel tank of an automobile for introducing an open air therefrom when the liquid surface of fuel lowers in the fuel tank. There is provided a float in the fuel tank which is detached from a second port when the liquid surface is under a predetermined level in the fuel tank but closes the second port when the liquid surface exceeds the predetermined level for preventing the fuel from overflowing the first port. There are provided a diaphragm and a rod to be operated by the diaphragm inside the float for preventing the float being kept adhered to the second port by pushing back the diaphragm by the rod.

REFERENCES:
patent: 3162209 (1984-12-01), Gaines
patent: 4164955 (1979-08-01), Allen
patent: 4376446 (1983-03-01), Liff
patent: 4781218 (1988-11-01), Mori
patent: 4982757 (1991-01-01), Ohasi

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