Patents by Inventor Josef Schrekeis

Josef Schrekeis 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: 4496165
    Abstract: An adjustable collet is provided comprising a step collet, a plurality of machinable and removable jaws, and means for interlocking the jaws with the step collet. The interlocking means comprise counter-bored and threaded holes spaced on the face of the collet, and hollow bosses projecting from one surface of the jaws and aligned with counter-bored or counter-sunk holes on the opposite surface, the interlocking means being effected by mating the jaw bosses with the holes in the collet face and by engaging screws passing through the holes and bosses in the jaws to the threaded holes in the collet face. To further increase the capacity of the collet, extension bars are utilized that incorporate the above-described interlocking means.
    Type: Grant
    Filed: January 18, 1983
    Date of Patent: January 29, 1985
    Assignee: The Board of Trustees of The University of Illinois
    Inventors: Josef Schrekeis, Gerard P. Murphy