Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Patent
1993-01-06
1994-06-07
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
137218, 137315, 137441, 251 46, F16K 3134, F16K 31385
Patent
active
053180623
ABSTRACT:
A tank valve for refilling a water tank. A vertical riser has a passage opening through a valve seat in a body. A flow chamber and a discharge chamber are formed around the valve seat. A cap is secured to the body so as to overlay the chambers. The cap has a central socket opening, a plurality of laterally-spaced anit-siphon ports, and a contact surface. The anti-siphon ports open onto the contact surface. A valve control device has a rigid case with a neck and an engaging shoulder. An anti-siphon disc has a hole through which the neck is passed. The neck is inserted in the socket opening and the engaging shoulder presses the disc against the cap. A bias chamber is formed in the case. A retainer is secured to the case. It includes a retaining shoulder which holds a flexible diaphragm to close the bias chamber. The diaphragm has a bias port therethrough. A level controlled valve opens and closes a vent port in the neck. The rigid case, when the neck is inserted in the socket spring, properly locates the diaphragm relative to the valve seat. The case and the anti-siphon disc can be removed and replaced as a unit.
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Mon Donald D.
Walton George L.
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