Patents by Inventor Robert C. Ellis

Robert C. Ellis 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).

  • Patent number: 4948998
    Abstract: The electric motor contemplated by this invention includes an armature having two opposed faces mounted on a shaft. The armature is mounted on the shaft intermediate of the ends of the shaft. A pair of commutators are mounted on the shaft adjacent to each of the opposed armature faces. Each of the commutators includes a plurality of commutator bars, each of which has its circumferential width offset relative to the circumferential width of the commutator bars on the other commutator. Alternately or in combinatrion, with the commutator bar offset the brushes in operative engagement with each of the commutators are arranged with their circumferential width offset, relative to the circumferential width of the brushes in operative engagement with the opposite commutator. The electric motor can also be provided with a redundancy capability by a circuit arrangement in which one of the commutators is held as a backup in the event of a failure of the windings of the other commutator.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: August 14, 1990
    Assignee: Honeywell Incorporated
    Inventors: Richard A. Fink, Robert C. Ellis, Jr.
  • Patent number: 4396324
    Abstract: A tie-down rail apparatus extends below top rim walls on side walls for a load-carrying bed of a pick-up truck. Rails extend between walls forming stake pockets where end portions of the rails each engages with a coupling socket extending from a holder which is supported by walls of the stake pocket. The holders have an L-shaped, U-shaped or S-shaped configuration to wrap around the walls of the stake pocket and support the coupling sockets. The rail is supported for telescoping movement from a connector in one modification and in another modification, the rail takes the form of a rectangular tube with a longitudinal slot to support tie fixtures at various locations along the slot.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: August 2, 1983
    Inventor: Robert C. Ellis
  • Patent number: 3932078
    Abstract: Apparatus for making power transmission belting from an uncured body which apparatus includes two concentric cylindrical members of substantially the same length which are interpositioned between two generally flat parallel plates clamped together by a press means. A bladder assembly disposed within and together with the innermost cylindrical member define a mold concavity for receiving, molding, and curing power transmission belting.
    Type: Grant
    Filed: March 13, 1975
    Date of Patent: January 13, 1976
    Assignee: The Gates Rubber Company
    Inventors: Robert C. Ellis, James C. Vance, Sr., Sterling Van Gundy, Donald R. Walcher