Patents by Inventor John Cenko

John Cenko 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).

  • Process for making bearing locking collar
    Patent number: 4164063
    Abstract: A process of making a locking collar for retaining bearings on a shaft by first compacting and sintering powdered metal to form a collar having an eccentric counterbore with a relative precise chamfered surface on the collar end around the counterbore. The collar end is then swaged forming a back taper on the counterbore inner peripheral surface while providing a predetermined counterbore inner diameter.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: August 14, 1979
    Assignee: General Motors Corporation
    Inventors: John Cenko, Thomas C. Pechauer