Patents by Inventor Allan L. Brent

Allan L. Brent has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4319170
    Abstract: A direct-current motor is energized through a diode in the emitter-base network of a transistor and through the emitter-collector network of another transistor which is held conductive by the driving current but which automatically limits the current flow through the motor. When the circuit is de-energized, a self-braking effect is established by the circuit which is substantially symmetrical for reversing operation of the motor.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: March 9, 1982
    Inventor: Allan L. Brent