Pneumatic cylinder for controlling electrical switch operation

Details Pneumatic cylinder for controlling electrical switch operation Pneumatic cylinder for controlling electrical switch operation

1975-04-09

1977-01-18

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

200 81R, 91356, H01H 3538

Patent

active

040041166

ABSTRACT:
A pneumatic switch control has a by-pass air line connected between the air inlet line of a pneumatic cylinder and an air operator which actuates an electrical switch. Back pressure, created in the pneumatic cylinder, is fed to the air operator while the piston in the pneumatic cylinder is moving but the back pressure is reduced to zero when the piston stops, thus actuating the electrical switch.

REFERENCES:
patent: 2392471 (1946-01-01), Fox
patent: 2644303 (1953-07-01), Rohrscheib
patent: 2735405 (1956-02-01), Hipple
patent: 3289515 (1966-12-01), Chiesa

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