Pneumatic timer

Details Pneumatic timer Pneumatic timer

1975-10-01

1977-07-26

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Retarded or delayed type

200 34, 200 83T, H01H 703

Patent

active

040386198

ABSTRACT:
A pneumatic timer translating the external force of an electromagnetic relay or the like into rotational movement of a camshaft to actuate a set of switch contacts. The rotation of the camshaft is retarded in one direction by an adjustable pneumatic one-way time delay mechanism. The timer is capable of two modes of operation, on delay and off delay, according to choice of camshaft configuration and orientation.

REFERENCES:
patent: 2899523 (1959-08-01), Flatet et al.
patent: 3509501 (1970-04-01), Brovedan
patent: 3585321 (1971-06-01), Dennison
patent: 3684985 (1972-08-01), Flanagan
patent: 3737596 (1973-06-01), Yokoyama

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