Patents by Inventor James A. Gruszkowski

James A. Gruszkowski 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).

  • Zero degree operating pressure angle clearing
    Publication number: 20060058151
    Abstract: A zero degree operating pressure angle gearing system includes an external gear and a mating gear. The external gear has a plurality of teeth disposed along a periphery of the gear, each of the teeth having a convex profile. The mating gear has a plurality of teeth, each of the teeth having a concave profile. The gears are mated to one another such that an operating pressure angle defined by the gears is substantially zero.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 16, 2006
    Applicant: Illinois Tool Works, Inc.
    Inventors: Henry Flair, James Gruszkowski
  • Limited slip differential
    Patent number: 6599217
    Abstract: A limited slip differential having a carrier with a plurality of recesses disposed symmetrically relative to a gear opening. The gear opening having a gear diameter, and each of the plurality of recesses having a recess diameter. The gear diameter intersecting the recess diameter of each of the plurality of recesses at corresponding first and second intersections, an acute angle between a line tangent to the recess diameter at the first intersection and a tangent line of the recess diameter along which first and second chamfers extend is between approximately 30 degrees and approximately 32 degrees.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: July 29, 2003
    Assignee: Illinois Tool Works Inc.
    Inventors: Anthony R. Caringella, James A. Gruszkowski, Wesley P. Nowakowski
  • Limited slip differential
    Publication number: 20030092527
    Abstract: A limited slip differential having a carrier with a plurality of recesses disposed symmetrically relative to a gear opening. The gear opening having a gear diameter, and each of the plurality of recesses having a recess diameter. The gear diameter intersecting the recess diameter of each of the plurality of recesses at corresponding first and second intersections, an acute angle between a line tangent to the recess diameter at the first intersection and a tangent line of the recess diameter along which first and second chamfers extend is between approximately 30 degrees and approximately 32 degrees.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 15, 2003
    Inventors: Anthony R. Caringella, James A. Gruszkowski, Wesley P. Nowakowski
  • Limited slip differential
    Patent number: 6325738
    Abstract: A limited slip differential having a carrier with a plurality of recesses disposed therein about a rotation axis thereof, each recess having an open side portion with generally opposite first and second edges substantially parallel to the rotation axis, a chamfer disposed along each of the first and second edges, and a planetary gear disposed in each of the plurality of carrier recesses having a portion protruding from the open side portion thereof.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: December 4, 2001
    Assignee: Illinois Tool Works Inc.
    Inventors: Anthony R. Caringella, James A. Gruszkowski, Wesley P. Nowakowski