Patents by Inventor Paul Palthey-Glomeau

Paul Palthey-Glomeau 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).

  • Rotatable element in machine track having thrust washer stack for stepping down relative speeds
    Patent number: 11654983
    Abstract: A sealed and lubricated rotatable track engaging element includes a roller and a roller shaft extending through the roller to support the roller for rotation about a major axis. A first thrust surface is fixed relative to the roller, and a second thrust surface is fixed relative to the roller shaft. A seal cavity extends between the roller and the roller shaft and is formed in part by each of the first thrust surface and the second thrust surface, and a thrust washer stack is within the seal cavity and trapped between the first thrust surface and the second thrust surface. The thrust washer stack includes an inner thrust washer contacting the roller to rotate at a first fractional speed of a speed of rotation of the roller, and an outer thrust washer contacting the inner thrust washer and the collar to rotate at a second fractional speed that is less than the first fractional speed.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: May 23, 2023
    Assignee: Caterpillar Inc.
    Inventors: Benoit Abello, Paul Palthey-Glomeau, Brian Loeffler, David Jennings Hakes
  • ROTATABLE ELEMENT IN MACHINE TRACK HAVING THRUST WASHER STACK FOR STEPPING DOWN RELATIVE SPEEDS
    Publication number: 20200386271
    Abstract: A sealed and lubricated rotatable track engaging element includes a roller and a roller shaft extending through the roller to support the roller for rotation about a major axis. A first thrust surface is fixed relative to the roller, and a second thrust surface is fixed relative to the roller shaft. A seal cavity extends between the roller and the roller shaft and is formed in part by each of the first thrust surface and the second thrust surface, and a thrust washer stack is within the seal cavity and trapped between the first thrust surface and the second thrust surface. The thrust washer stack includes an inner thrust washer contacting the roller to rotate at a first fractional speed of a speed of rotation of the roller, and an outer thrust washer contacting the inner thrust washer and the collar to rotate at a second fractional speed that is less than the first fractional speed.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Applicant: Caterpillar Inc.
    Inventors: Benoit Abello, Paul Palthey-Glomeau, Brian Loeffler, David Jennings Hakes