Pilot valve assembly

Fluid handling – Convertible – Unit orientable in a single location between plural positions

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Details

91 54, 137551, 13759617, 13762564, 137884, 251 29, 251 3001, 25112903, F15B 13044

Patent

active

047278994

ABSTRACT:
A pilot valve for connecting a source of fluid under pressure to an actuator where the pilot valve may be connected to the actuator in any of 360.degree. of rotation so that the fluid connections may be made from any desired direction. Further disclosed is a coupling adapter joining the pilot valve to the actuator with passages so arranged in the adapter that 180.degree. rotation of the coupling adapter reverses the fluid flow connections between the pilot valve and the actuator simultaneously exposing indicia indicating the condition. Still further disclosed is a spring return manual override that is slotted to enable operation by a coin and has a mating slot in the pilot valve body allowing locking in the override position by insertion of a coin or similar device. A ball valve actuator is described as an actuator device.

REFERENCES:
patent: 2799293 (1957-07-01), Clay
patent: 2881801 (1959-04-01), McCormick
patent: 3236494 (1966-02-01), Frantz
patent: 3347260 (1967-10-01), Lewis et al.
patent: 3522821 (1970-08-01), Komendera
patent: 3678810 (1972-07-01), Holmes et al.
patent: 4193423 (1980-03-01), Stoll et al.
patent: 4348942 (1982-09-01), Stoll
patent: 4501299 (1985-02-01), Klimowicz et al.
patent: 4507707 (1985-03-01), Willis
patent: 4598736 (1986-07-01), Chorkey
patent: 4633897 (1987-01-01), Effenberger

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