Noise-preventing structure for water mixing cocks

Details Noise-preventing structure for water mixing cocks Noise-preventing structure for water mixing cocks

1985-01-28

1987-04-14

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

13762517, F16K 1106

Patent

active

046570454

ABSTRACT:
A water mixing cock has a noise-preventing structure and comprises a fixed plate, an opposing movable plate valve, a hollow chamber in the movable plate valve, a valve operator for rotating the movable plate valve so that either hot or cold or mixed water is allowed to flow through the hollow chamber, a discharge water passage in communication with the hollow chamber, and a variable escape groove for communicating the hollow chamber and the discharge water passage with each other only when hot water is allowed to flow through the hollow chamber. The noise-preventing structure is a sound arresting member disposed in an inlet portion of the movable plate valve in such a manner that noise occurring when the movable plate valve is rotated by the valve operator is minimized.

REFERENCES:
patent: 3533436 (1970-10-01), Parkison
patent: 3854493 (1974-12-01), Farrell
patent: 3965936 (1976-06-01), Lyon
patent: 4157099 (1979-06-01), Delker et al.

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