Electricity: motive power systems – Plural diverse motor controls – Motor-reversing
Patent
1990-02-05
1991-06-11
Ip, Paul
Electricity: motive power systems
Plural diverse motor controls
Motor-reversing
318285, 318286, 318466, H02P 122
Patent
active
050235290
ABSTRACT:
A control circuit for connecting a load to a voltage source includes an electronic holding circuit having latched and unlatched states. When latched, the electronic holding circuit connects the load to the voltage source. A thermal device responsive to excessive current demand by the load automatically places the holding circuit in its unlatched state, and disconnects the load from the voltage source. The circuit may also be placed in its unlatched state by sensing a current in a resistor to unlatch the circuit without requiring a current sufficient to cause the thermal device to respond.
REFERENCES:
patent: 4328451 (1982-05-01), Barge
patent: 4347465 (1982-08-01), Goertler et al.
patent: 4351016 (1982-09-01), Felbinger
patent: 4373149 (1983-02-01), Coste
patent: 4562387 (1985-12-01), Lehnhoff
patent: 4678975 (1987-07-01), Vrabel et al.
patent: 4686598 (1987-08-01), Herr
patent: 4709196 (1987-11-01), Mizuta
patent: 4710685 (1987-12-01), Lehnhoff et al.
patent: 4725765 (1988-02-01), Miller
patent: 4746845 (1988-05-01), Mizuta et al.
patent: 4796011 (1989-01-01), Lemirando et al.
patent: 4801812 (1989-01-01), Brusasco
patent: 4808894 (1989-02-01), Mizuta
patent: 4870333 (1989-09-01), Itoh et al.
patent: 4900994 (1990-02-01), Mizuta
Ip Paul
Therm-O-Disc Incorporated
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