Patents by Inventor Luke B. Fischer

Luke B. Fischer 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: 10351186
    Abstract: An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: July 16, 2019
    Assignee: Caterpillar Inc.
    Inventors: Luke B. Fischer, David F. Schaefer
  • Publication number: 20190202509
    Abstract: An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.
    Type: Application
    Filed: December 30, 2017
    Publication date: July 4, 2019
    Applicant: Caterpillar Inc.
    Inventors: Luke B. Fischer, David F. Schaefer