Patents by Inventor Andrew J. Szewczyk

Andrew J. Szewczyk 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).

  • Pot broach
    Patent number: 4102244
    Abstract: A pot broaching machine for cutting small pinions from the solid for use with a pull-up broaching machine, the pot having a multiplicity of solidly abutting flat-sided internally toothed cutting rings and internally slotted support rings, with elongated toothed sticks received in the slots of said support rings, automatic loading and unloading means, and guide means to guide a work blank as it enters the broach.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: July 25, 1978
    Assignee: Lear Siegler, Inc.
    Inventors: Eugene J. Bistrick, Axel B. Abrahamsson, Andrew J. Szewczyk, Frank A. McCabe, Richard A. Schlaf, Leonard A. Gabriele
  • Pot broach
    Patent number: 4065222
    Abstract: A pot broach for cutting small pinions from the solid for use with a pull-up broaching machine, the pot having a multiplicity of solidly abutting flat sided internally toothed cutting rings and internally slotted support rings, with elongated toothed sticks received in the slots of said support rings.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: December 27, 1977
    Assignee: Lear Siegler, Inc.
    Inventors: Eugene J. Bistrick, Axel B. Abrahamsson, Andrew J. Szewczyk, Frank A. McCabe, Richard A. Schlaf, Leonard A. Gabriele