Float control fluid shut off valve mechanism

Details Float control fluid shut off valve mechanism Float control fluid shut off valve mechanism

2007-01-30

2010-02-23

Rivell, John (Department: 3753)

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

C137S410000, C251S074000

Reexamination Certificate

active

07665482

ABSTRACT:
A mechanism for opening or closing a shut off valve, the mechanism having a lever mounted on a spindle to which the valve is attached for mounting the valve from a normally open position to a closed position. A trigger mechanism including the lever and a biasing spring which when activated, rotates the lever, spindle and valve. A retainer mechanism ordinarily holds the trigger mechanism in a cocked position corresponding to the open position of the valve. The float, when subjected to water, releases the retainer mechanism permitting the trigger mechanism to close the valve.

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