Rotary spool valve

Details Rotary spool valve Rotary spool valve

1976-05-24

1977-06-28

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

13762547, 251317, 251309, 251DIG1, F16K 1107

Patent

active

040319180

ABSTRACT:
A fluid flow control valve has a rotary spool with one or more standard, circular O-rings held in stretched condition by shoulders on the spool so that instead of extending all the way around the circumference of the spool each O-ring extends only a part of the way around the circumference and has two longitudinally extending sections as well as two arcuate circumferential sections that serve to seal the spool in the spool bore both during movement and while it is in a selected fluid flow controlling position.

REFERENCES:
patent: 2585556 (1952-02-01), Johnson
patent: 3033226 (1962-05-01), Allen
patent: 3538952 (1970-11-01), Bayer
patent: 3938553 (1976-02-01), Ortega

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