Patents Assigned to Music & Sound, Inc.
  • Electronic motor control circuit
    Patent number: 4782271
    Abstract: A motor control circuit is utilized to monitor and control the power to two series connected 110-120 VAC motors, to detect an imbalance between the operation of the two motors, and to remove the power to both motors if one motor operates in an abnormal manner. A reference voltage is used and compared to the voltage level at the mid connection of the series connected motors.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: November 1, 1988
    Assignee: Music & Sound, Inc.
    Inventor: LeRoy N. Trowbridge