Automatic fluid switching valve

Details Automatic fluid switching valve Automatic fluid switching valve

1998-12-04

2000-07-11

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

1375124, F16K 1100

Patent

active

060857730

ABSTRACT:
An automatic fluid switching valve is disclosed. The switching valve includes first, second and third ports and a valve member controlling fluid flow between the ports. The valve member substantially prevents fluid from flowing: (a) from the third port to the first port; (b) from the second port to the first port; (c) from the third port to the second port; and (d) directly from the first port to the third port. The valve member has a first state in which it permits fluid to flow from the first port to the second port and a second state in which it permits fluid to flow from the second port to the third port.

REFERENCES:
patent: 4084606 (1978-04-01), Mittleman
patent: 4457330 (1984-07-01), Fields
patent: 5305777 (1994-04-01), Nakamura et al.
Merit Medical OEM Sales Group, OEM Products Catalog, Merit Medical Systems, Inc., Published Mar. 17, 1998, 25 pp., (Check Relief Valves, p. 20).

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