Fluid handling – Systems – Multi-way valve unit
Patent
1984-06-22
1985-04-30
Cohan, Alan
Fluid handling
Systems
Multi-way valve unit
13762517, F16K 1106, F16K 1900
Patent
active
045137811
ABSTRACT:
A sanitary single-control mixer fitting with regulating elements is formed having at least two discs, of which one serves as a static valve seat disc and includes two inlet ports for cold and hot water, as well as an outlet port. The second disc is shiftably mounted on the valve seat disc and includes a mixing chamber cavity, which is sufficiently dimensioned to partially or completely connect the inlet ports with the outlet port of the valve seat disc. The mixing chamber cavity in the shiftable disc is of asymmetrical form in relation to a symmetrical perforation pattern of the inlets and outlet parts in the static valve seat disc so that the usual mixed water temperature ranges, which constitute a so-called comfort zone, and therefore, the corresponding mid-position of the mixing chamber cavity is designed to reduce the free flow cross sectional area of the inlet port for the cold water but the mixing chamber cavity is greater than the cross sectional area of the hot water inlet.
REFERENCES:
patent: 2977986 (1961-04-01), Hinderer et al.
patent: 3433264 (1969-03-01), Parkison
patent: 3533444 (1970-10-01), Lyon
patent: 3543799 (1970-12-01), Hayman
patent: 3736959 (1973-06-01), Parkison
patent: 3920043 (1975-11-01), Fowell
patent: 4088153 (1978-05-01), Paasikivi
American Standard Inc.
Cohan Alan
Crooks Robert G.
Rivell John A.
Salerno, Jr. James J.
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