Timing mechanism with momentary switch

Details Timing mechanism with momentary switch Timing mechanism with momentary switch

1990-08-27

1991-07-09

Scott, J. R.

Electricity: circuit makers and breakers

Retarded

Clock train

200 38A, H01H 4310

Patent

active

050308017

ABSTRACT:
A timing mechanism has a segmented shaft one segment of which carries a camstack while the other segment carries a drive member coupled to an actuator for a momentary switch. The actuator is coupled to the drive member such that the shaft is free to rotate independent of the actuator, with the actuator being restrained from rotation. The actuator moves axially in response to movement of the drive member to open and close the momentary switch. A positive snap action breaking of the electrical contacts of the momentary switch is achieved by holding the movable electrical contact of the switch to the actuator so that it positively disengages from the other contact when the actuator is positively indexed.

REFERENCES:
patent: 3431372 (1969-03-01), Obermann
patent: 3553720 (1971-01-01), Brown
patent: 4292482 (1981-09-01), Smock et al.
patent: 4307270 (1981-12-01), Smock
patent: 4412110 (1983-10-01), Wojtanek
patent: 4491710 (1985-01-01), Smock
patent: 4538037 (1985-08-01), Amonett
patent: 4560846 (1985-12-01), Klopp et al.
patent: 4892983 (1990-01-01), Bogda et al.

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