Automatic three-way valve

Details Automatic three-way valve Automatic three-way valve

1996-12-30

1999-05-04

Fox, John

Fluid handling

Systems

Multi-way valve unit

251 77, F16K 1102

Patent

active

058992316

ABSTRACT:
The present invention relates to a method and apparatus incorporating an automatic, three-way valve having inlet, outlet and drain passages and a close-open timing mechanism. The timing mechanism is adjusted to a predetermined period of time in order to close the drain passage and then open the outlet passage or vice-versa automatically after a predetermined period of time in response to the starting or stopping of an external source of pressurized fluid being directed to the three-way valve.

REFERENCES:
patent: 507661 (1893-10-01), Langford
patent: 2616658 (1952-11-01), Dombeck
patent: 3779280 (1973-12-01), Evans et al.
patent: 4470429 (1984-09-01), Johnson
patent: 4651775 (1987-03-01), Okada
patent: 4852612 (1989-08-01), Bucko, Sr.
patent: 4924911 (1990-05-01), Schmalenbach et al.
patent: 4982760 (1991-01-01), Mustaklem
patent: 5441080 (1995-08-01), Baumann

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