Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent
1985-04-18
1986-09-09
Cohan, Alan
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
13762517, 1376254, 251172, 251174, F16K 11078, F16K 2500
Patent
active
046102680
ABSTRACT:
A mixer valve comprising a valve body, control means, a changeable cartridge inserted into the body of the valve, a fixed hard material plaque mounted in the cartridge, and a movable plaque housed in the cartridge, connected to the control means and intended to cooperate with the fixed plaque to carry out the regulation of the flow rate and the mixing ratio, and wherein the changeable cartridge is contained in the body of the valve with an axial clearance; the cartridge carries peripherally, near its inner end, a gasket intended to radially seal in a corresponding bore of the valve body; there is provided a sealing union acting between the cartridge and one of the water inlet pipes; the other water inlet pipe communicates with the bottom portion of the valve body; the remaining portion of the body cavity comunicates with a delivery union; and there may be provided a resilient member acting between the valve body and the cartridge to permanently apply a preloading force onto the plaques.
REFERENCES:
patent: 3476149 (1969-11-01), Dornaus
patent: 3570810 (1971-03-01), Kawolics
patent: 3923284 (1975-12-01), Stickler et al.
patent: 4005728 (1977-02-01), Thorp
patent: 4058289 (1977-11-01), Hicks
patent: 4250912 (1981-02-01), Knapp
patent: 4325403 (1982-04-01), Uhlmann
Cohan Alan
Gevipi A.G.
Rivell John A.
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