Patents by Inventor Elmo F. Bradshaw

Elmo F. Bradshaw 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).

  • Brush shunt connection
    Patent number: 4075524
    Abstract: Improved shunt connections for high current conducting carbon brushes for electrical rotating machinery utilize a tamping composition comprising finely divided granules composed of 85 to 97% by weight of graphite; and 15 to 3% by weight of a high temperature-stable resin such as polyaryl sulfone. After forming the tamped connection, a sealant is applied to the tamping composition. The sealant preferably comprises an aminofunctional silane, which improves the bond between the copper shunt and the tamping composition.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: February 21, 1978
    Assignee: Airco, Inc.
    Inventors: Elmo F. Bradshaw, John F. Rakszawski