Fluid handling – Convertible – Unit orientable in a single location between plural positions
Patent
1976-02-26
1977-05-10
Nilson, Robert G.
Fluid handling
Convertible
Unit orientable in a single location between plural positions
137100, 1374546, 13762541, 251248, F16K 1102
Patent
active
040222420
ABSTRACT:
The invention relates to a shower control valve assembly having the feature of a casing with optionally reversible hot and cold inlets on opposite sides thereof. A replaceable cartridge is insertable into the casing. The cartridge has a mixing valve disk rotatably mounted therein which has first and second indexed starting positions displaced 180 degrees from each other to facilitate th optional choosing of which of the two casing inlets is to be connected to the hot water supply pipe and which is to be connected to the cold water supply pipe. The disk has first and second ports cooperable with two internal valve openings in a manner such that when the disk starts from one of its two indexed positions which corresponds to a particular one of the valve openings being connected to the hot water supply, the disk functions sequentially to draw (1) cold (2) mixed temperature and (3) hot water from the two internal valve openings and route it to the casing discharge outlet. A pinion gear arrangement is provided which operates with a 2 to 1 gear ratio between control knob and the mixing valve disk.
REFERENCES:
patent: 3674048 (1972-07-01), Manoogian
patent: 3921659 (1975-11-01), Rudewick
Danfoss A/S
Nilson Robert G.
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