Multi-voltage motor and timer clock

Details Multi-voltage motor and timer clock Multi-voltage motor and timer clock

1988-02-16

1989-10-31

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318442, 318729, 318814, 324158MG, H02P 740

Patent

active

048780065

ABSTRACT:
A motor having a capacitor in series with its coil permits the motor to operate at a higher voltage or range of voltages over its design voltage. A method determines the correct value of a capacitor to change the design voltage of a motor to a different operating voltage. A receptacle can be used to receive capacitors of different values to vary the operating voltage of a motor. The receptacle is provided with a capacitor holding device which is marked with the operating voltage set by the capacitor. A timer clock has a motor of a design voltage which can be changed to a plurality of operating voltages. The timer clock can have the receptacle accessible from the exterior with a cover having the operating voltage marked thereon.

REFERENCES:
patent: 1978581 (1934-10-01), Johnson
patent: 2040508 (1936-05-01), Thompson
patent: 4390219 (1983-06-01), Beehler
Rosenberg, R., Electric Motor Repair, 2nd Ed., Holt, Rinehart and Winston, 1970, pp. 76-77.

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