Patents by Inventor Arnold Ruppert

Arnold Ruppert 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: 3969660
    Abstract: A regenerative motor control of the field reversing type includes a field circuit for energizing the motor field and an armature circuit for energizing the motor armature. An analog signal generating means, typically a multiplier, is coupled to the armature circuit and is operable by a bi-polarity motor operative condition error signal and a bi-polarity field current direction and magnitude signal for energizing the motor armature and for providing deenergization, as well as improved reenergization of the armature, during the transient period between motoring and regenerative operation.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: July 13, 1976
    Assignee: Allen-Bradley Company
    Inventor: Arnold Ruppert