Flow line switch

Details Flow line switch Flow line switch

1979-01-02

1980-09-23

Michalsky, Gerald A.

Fluid handling

Systems

With flow control means for branched passages

13762546, 137876, 137885, 406182, F16K 1102

Patent

active

042237009

ABSTRACT:
A flow line switch having a housing and a rotor mounted within the housing, an annular piston between the rotor and the housing and adapted to slide axially in the annulus between the rotor and housing, means for supplying and venting fluid to and from opposite ends of the annulus for movement of the piston, the rotor having a passageway extending therethrough adapted to connect to at least one port through the housing at one end and selectively to one of at least two ports at the other end and stop means at the extremities of travel of the piston to assure communication between the preselected ports.

REFERENCES:
patent: 3674123 (1972-07-01), Lewis et al.
patent: 3780756 (1973-12-01), Pennington
patent: 4133418 (1979-01-01), Van Bilderbeek

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