Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1978-09-27
1980-12-09
Smith, Jr., David
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318318, H02P 516
Patent
active
042387167
ABSTRACT:
A precision motor speed control system where a reference generator produces pulses for each revolution of a dispenser shaft, the time between pulses is measured and compared to a preselected standard, a time greater than standard will generate a pulse causing a transistor circuit to apply an accelerating voltage to the motor, a time less than the standard will generate a pulse causing a transistor circuit to apply a decelerating voltage to the motor.
REFERENCES:
patent: 3188547 (1965-06-01), Zelina
patent: 3638089 (1972-01-01), Gabor
patent: 4041362 (1977-08-01), Ichiyangi
Miller Henry S.
Rusz Joseph E.
Smith Jr. David
The United States of America as represented by the Secretary of
LandOfFree
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