Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1988-12-08
1990-01-09
Scott, J. R.
Electricity: circuit makers and breakers
Retarded
Clock train
200 38A, 200 38B, 200 38C, H01H 4300
Patent
active
048929832
ABSTRACT:
A combination programmer and line switch for an appliance having a rotary program cam and a timing motor connected for advancing the cam. An upper line power contact blade is moved between high and low positions by a manual actuator. A lower contact blade is maintained stationary and is adapted for connection to certain appliance load functions. An intermediate program contact blade series connected to the timing motor has a follower biased against the program cam and is adapted for connection to all appliance functions. With the upper contact in the high position, the motor circuit is open for all positions of the program and in the low position the timing motor is energized. Alternatively, the program cam may include a line contact switch override to maintain the intermedaite blade in contact with the upper blade for both positions of the manual actuator.
REFERENCES:
patent: 3431372 (1969-04-01), Obermann
patent: 3752944 (1973-08-01), Cartier et al.
patent: 3866002 (1975-02-01), Underwood et al.
patent: 4413164 (1983-11-01), Obermann et al.
patent: 4497985 (1985-02-01), Courter et al.
patent: 4497986 (1985-02-01), Zink et al.
patent: 4560846 (1985-12-01), Klopp et al.
Bogda Richard C.
Georgacakis George D.
Eaton Corporation
Johnston R. A.
Scott J. R.
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