Patents by Inventor Ralph E. Sears

Ralph E. Sears 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).

  • Dynamoelectric machine brush holder
    Patent number: 4340832
    Abstract: A unitary dynamoelectric machine brush holder formed to provide a brush accommodating recess bounded on three sides by two opposing substantially parallel side segments and a transverse segment. Extending from one of the side segments is a pair of spaced spring retainer members formed to provide respective spring retaining recesses in which is mounted a unitary torsion spring having two coils separated by a loop portion that extends between the spring retainer members into the brush accommodating recess and is arranged to exert pressure on a brush located within the brush accommodating recess.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: July 20, 1982
    Assignee: General Motors Corporation
    Inventors: Robert A. Cheetham, Ralph E. Sears