Patents by Inventor Robert N. Prittie

Robert N. Prittie 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).

  • Electrically isolated brush holder
    Patent number: 4166968
    Abstract: An improvement in dynamo electric machines is disclosed in which the brush holder is electrically isolated from the brush pigtail terminal junction. The member which supports the junction connecting the brush pigtail and the lead from the stator includes an insulator which electrically isolates the junction from the brush holder. The insulator eliminates the relatively low impedance electrical path between the brush terminal and the commutator through the brush holder, preventing damaging arcing between the commutator and the brush holders.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: September 4, 1979
    Assignee: Lear Siegler, Inc.
    Inventor: Robert N. Prittie