Patents by Inventor Trevor E. Topley

Trevor E. Topley 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).

  • Rotating warning lamp
    Patent number: 4320385
    Abstract: A rotating lamp comprising a lamp base and an electric motor mounted on the lamp base. The electric motor drives a hollow shaft on which the lamps are mounted. A conductive rod extends through the shaft and is electrically isolated from the shaft. The lamps which are mounted on the shaft are electrically interconnected between the rod and the shaft. The housing of the electric motor is electrically isolated from the base. Brush means provide electrical continuity between the power source and the rod. Additional brush means provide electrical continuity between the shaft and the base.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: March 16, 1982
    Assignee: Dominion Auto Accessories Limited
    Inventors: Arthur F. Bleiweiss, Robert J. Wilkes, Trevor E. Topley