Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Reexamination Certificate
2006-09-28
2010-02-16
Rivell, John (Department: 3753)
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
C137S417000, C137S423000
Reexamination Certificate
active
07661438
ABSTRACT:
An improved fill valve has a pivot valve body that is pivotally suspended immediately below a float housing and is movable between two positions. In a first position, the pivot valve body blocks the flow of water from the float housing. In a second position, the pivot body allows the flow of water from the float housing. The pivot valve body has two top compartments, each separated from the other by a wall. The first compartment retains an amount of water in it. The second compartment functions as a water flow restriction apparatus and includes an upwardly-extending member for sealing off a check valve that is disposed within the bottom of the float housing. The fill valve also includes structural elements that allow the water to trickle into the float housing at a very slow rate. The fill valve can be re-set for normal toilet tank operation.
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Nichols-Roy David
Torres Alberto C.
Woods Dennis D.
Bergin Patrick M.
Heino Joseph S.
Price Craig
Rivell John
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