Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1997-02-27
1998-05-26
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
251 40, F16K 4300, F16K 31145, F16K 31385
Patent
active
057552533
ABSTRACT:
A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets has a body with an inlet and an outlet. There is a valve seat between the inlet and the outlet and a valve member is movable to a closing position on the valve seat to stop flow through the flush valve. The valve member includes a diaphragm which is peripherally attached to the body and there is a pressure chamber above the diaphragm for holding the valve member on the valve seat. A bypass orifice connects the inlet and the pressure chamber. The diaphragm has a vent passage connecting the pressure chamber and the outlet. There is an auxiliary valve closing the vent passage, with the auxiliary valve including an auxiliary valve head and a stem extending downwardly therefrom. The auxiliary valve head has a bore with a lower open end. The bore has a first portion with a first diameter and a second portion with a larger diameter. The second portion of larger diameter is adjacent the lower open end of the bore. The stem has an end thereof positioned within the bore, with the stem end having an end portion with an outer diameter less than the outer diameter of the stem through a major portion of its length. The stem portion is received in the first bore portion when the stem is attached to the auxiliary valve head.
REFERENCES:
patent: 5213305 (1993-05-01), Whiteside et al.
patent: 5295655 (1994-03-01), Wilson et al.
patent: 5332192 (1994-07-01), Whiteside
patent: 5335694 (1994-08-01), Whiteside
patent: 5490659 (1996-02-01), Whiteside
patent: 5505427 (1996-04-01), Whiteside
Sloan Valve Company
Walton George L.
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