Patents by Inventor Robert J. Deller

Robert J. Deller 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).

  • Extruded nonskid treadway
    Patent number: 4266381
    Abstract: An extruded treadway includes a plurality of interlocking panels having upper surfaces which include nonskid members of pyramidal shape disposed in rectilinear configuration.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: May 12, 1981
    Assignee: Pullman Incorporated
    Inventor: Robert J. Deller
  • Axle end oil fill and leakage detector method of charging lubricant
    Patent number: 4027743
    Abstract: A pressurized lubricant charging and leak detection apparatus and method to fill the lubricant reservoir of a wheel hub with lubricant and detect lubricant leaks therefrom. The apparatus includes a tubular filling probe which may be inserted into the hub which is connected through valving to a pressurized lubricant supply to fill the reservoir with lubricant and there with a pressurized air supply to charge air into the reservoir until a constant air pressure is established in the reservoir; whereafter, a drop in air pressure within the reservoir indicates lubricant leak from the hub.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: June 7, 1977
    Assignee: Pullman Incorporated
    Inventors: Robert J. Deller, Edwin L. Carmel