Supervising apparatus

Details Supervising apparatus Supervising apparatus

1986-05-05

1987-10-13

Wayner, William E.

Power plants

Pressure fluid source and motor

49 27, 200 6143, F16D 3100, E05F 1502

Patent

active

046989676

ABSTRACT:
An apparatus for supervising the operation of a pneumatic safety system of an industrial door opening/closing mechanism or the like. The apparatus includes a pressure pulse generator for generating a pneumatic pressure pulse, and a pneumatic pathway for directing the pressure pulse to the pressure switch of the door opening/closing mechanism. The integrity of the safety system is confirmed if the pressure switch is moved in response to the pressure pulse.

REFERENCES:
patent: 3303303 (1967-02-01), Miller
patent: 4365188 (1982-12-01), Walter
patent: 4620072 (1986-10-01), Miller

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