Patents by Inventor John D. Sterbank

John D. Sterbank 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).

  • Vehicle door hinge with compound roller structure
    Patent number: 5018243
    Abstract: An automotive door hinge assembly is provided with a hold-open device with a leaf spring member carried on a first part of a hinge assembly, and a compound roller carried on a second part of the hinge assembly, wherein the compound roller engages the leaf spring member with the combination of a flexible and resilient first material portion and a hard, rigid second material portion of the roller assembly during its motion between the door open and door closed positions.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: May 28, 1991
    Assignee: ITT Corporation
    Inventors: Dennis J. Anspaugh, John D. Sterbank
  • Method for manufacturing composite powder metal parts
    Patent number: 4353155
    Abstract: Composite powder metal parts made of separate and distinct powders are produced by forming a low density preform of a first powder and then using the preform to define a part of the cavity employed to accommodate the second powder prior to final compaction. The cavity employed in forming the preform is defined by a die wall and a major diameter of a trailing section of a concentrically disposed core pin. A second cavity for the second powder is formed between the preform and the minor diameter of the distal section of the core pin.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: October 12, 1982
    Inventors: Arthur N. Hillebrand, John D. Sterbank