Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Parallel connected motors
Patent
1986-08-22
1987-12-08
Ro, Bentsu
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Parallel connected motors
318103, 194353, 221129, 221153, 221258, H02P 306
Patent
active
047120495
ABSTRACT:
Operation completion detection circuitry for a vend system including a plurality of individually controllably operable motors for performing a given type of operation, comprising power leads, a vend control circuit portion operatively connected to complete a circuit across the power leads through a given motor from among the plurality of motors, a cam operated switch associated with each motor and connected in series circuit therewith, each of which switches includes a first pole and a second pole, connected in common, and a controllably movable switch contact which is normally in electrical contact with the first pole of the switch means and is responsive to operation of the motor with which such cam operated switch is associated to switchably cycle between such first and second poles during a complete operational cycle of the motor, and a detector circuit which includes a monitor portion thereof operatively connected in common circuit to all of the motors and their associated cam operated switches and in series circuit with each respective motor and its associated cam operated switch, which detector circuit is responsive to operation of the movable switch contact of any of the cam operated switches to produce and to provide to the vend control circuit portion a home detection signal when the motor associated with such cam operated switch has operated sufficiently to cause the movable switch contact of such switch to complete a movement cycle and to return to electrical contact with the first pole of such switch.
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Coin Acceptors, Inc.
Ro Bentsu
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