Patents by Inventor Reiner Nill

Reiner Nill 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).

  • Drive and brake circuit for speed controlled DC motors
    Patent number: 4112341
    Abstract: In a system which controls the speed of a DC motor and in which the motor is driven by connecting the motor field winding and a series rectifier across the motor armature, a braking force is applied by connecting the armature across a braking resistor and the series rectifier. Regenerative braking is accomplished by connecting the armature across the line when the line voltage is low, and non-regenerative braking is accomplished through a series resistor when the line voltage is high. Suitable diodes or control rectifiers connect the armature across the line or the braking resistor.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: September 5, 1978
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Horst Fath, Reiner Nill