Patents by Inventor Brian R. Leslie

Brian R. Leslie 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).

  • Combination dynamometer and torsional damping apparatus
    Patent number: 5831179
    Abstract: A dynamometer in combination with a torsional damping apparatus for damping torsional vibration between a prime mover and the dynamometer. The torsional damping apparatus includes a body plate rotatably coupled to a finger plate by a bearing, wherein the torsional damping apparatus interconnects the dynamometer and the prime mover. The finger plate includes a plurality of substantially radially outwardly protruding finger members engageable with a plurality of spring members at least partially disposed in corresponding recesses arranged about the rotation axis on the inner side of the body plate. An outer retainer ring removably coupled on the inner side of the body plate over the plurality of spring members for retaining the spring members in the corresponding recesses of the body plate.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 3, 1998
    Assignee: Illinois Tool Works Inc.
    Inventors: Andrew J. Abraham, Brian R. Leslie
  • Method for torsional damping between a dynamometer and prime mover
    Patent number: 5829320
    Abstract: A method for damping torsional vibration between a prime mover and the dynamometer with a torsional damping apparatus including a body plate rotatably coupled to a finger plate by a bearing, wherein the torsional damping apparatus interconnects the dynamometer and the prime mover. The finger plate includes a plurality of substantially radially outwardly protruding finger members engageable with a plurality of spring members at least partially disposed in corresponding recesses arranged about the rotation axis on the inner side of the body plate. An outer retainer ring removably coupled on the inner side of the body plate over the plurality of spring members for retaining the spring members in the corresponding recesses of the body plate.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 3, 1998
    Assignee: Illinois Tool Works Inc
    Inventors: Andrew J. Abraham, Brian R. Leslie
  • Dynamometer torsional damping apparatus
    Patent number: 5784929
    Abstract: A dynamometer in combination with a torsional damping apparatus for damping torsional vibration between a prime mover and the dynamometer. The torsional damping apparatus includes a body plate rotatably coupled to a finger plate by a bearing, wherein the torsional damping apparatus interconnects the dynamometer and the prime mover. The finger plate includes a plurality of substantially radially outwardly protruding finger members engageable with a plurality of spring members at least partially disposed in corresponding recesses arranged about the rotation axis on the inner side of the body plate. An outer retainer ring removably coupled on the inner side of the body plate over the plurality of spring members for retaining the spring members in the corresponding recesses of the body plate.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: July 28, 1998
    Assignee: Illinois Tool Works Inc.
    Inventors: Andrew J. Abraham, Brian R. Leslie