Switching circuit with lockout feature

Details Switching circuit with lockout feature Switching circuit with lockout feature

1995-09-19

1997-05-06

Elms, Richard T.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

318283, H02P 122

Patent

active

056274114

ABSTRACT:
An electrical circuit for a switch having a lockout feature is described. The circuit permits both a primary operator and an auxiliary operator to operate a bi-directional motor by activating separate low-current switches. The circuitry enables the primary operator to disable the auxiliary operator's ability to operate the motor by activating a lockout switch. With the lockout switch activated, the primary operator can operate the motor without interference from the auxiliary operator. High-current power switches, activated via logic circuitry rather than by the operators, are used to complete a power circuit for energizing the motor.

REFERENCES:
patent: 3688173 (1972-08-01), Ballou
patent: 4146826 (1979-03-01), Wojslawowicz
patent: 5149924 (1992-09-01), Priesemuth

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