Shutoff-opening device

Details Shutoff-opening device Shutoff-opening device

1997-11-18

1999-11-23

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

137496, 137613, F16K 3112

Patent

active

059882174

ABSTRACT:
A valve body has a main body formed with an inflow channel for a first fluid, an inflow channel for a second fluid, and an outflow channel for the first and second fluids in common. The first fluid inflow channel is always in communication with the common outflow channel through a valve chamber. A valve element operates to bring the second fluid inflow channel into or out of communication with the first fluid inflow channel and the common outflow channel.

REFERENCES:
patent: 4182355 (1980-01-01), Briel et al.
patent: 5107885 (1992-04-01), Nakazawa et al.
patent: 5139225 (1992-08-01), Olson et al.
patent: 5161571 (1992-11-01), Nakazawa
patent: 5762086 (1998-06-01), Ollivier
European Search Report, Apr. 17, 1998, Appln. No. 97120081.1.

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