Patents by Inventor Randy D. Stoecker

Randy D. Stoecker 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).

  • Inverter location and orientation within a mobile machine
    Patent number: 11821173
    Abstract: A mobile machine includes front and rear ends, a frame, rotatably supported ground engaging mechanisms, and an electrical drive system. The electrical drive system includes a source of electrical energy, an inverter, at least one electric motor operatively coupled to rotate at least one of the ground engaging mechanisms, a plurality of first electric cables electrically coupling the source of electrical energy to the inverter, and a plurality of second electric cables electrically coupling the inverter to the electric motor. The inverter is disposed in the mobile machine in a vertical orientation at the rear end of the machine.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 21, 2023
    Assignee: Caterpillar Inc.
    Inventors: Randy D. Stoecker, David A. Gleissner, Lance M. Cowper, Kurt D. Smeltzer
  • POWER CABLE ROUTING FOR A MOTOR CASE
    Publication number: 20210261072
    Abstract: A drive system is disclosed. The drive system may include a motor case, a generator located externally at a first side of the motor case, an inverter located externally at a second side of the motor case, and at least one tube internal to the motor case. The at least one tube may be configured to carry at least one power cable that connects the generator and the inverter.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 26, 2021
    Applicant: Caterpillar Inc.
    Inventors: Randy D. STOECKER, Brian KRUG, Lance M. COWPER, Gregory AUSTIN, Joshua HICKE
  • Inverter Location and Orientation Within a Mobile Machine
    Publication number: 20210087789
    Abstract: A mobile machine includes front and rear ends, a frame, rotatably supported ground engaging mechanisms, and an electrical drive system. The electrical drive system includes a source of electrical energy, an inverter, at least one electric motor operatively coupled to rotate at least one of the ground engaging mechanisms, a plurality of first electric cables electrically coupling the source of electrical energy to the inverter, and a plurality of second electric cables electrically coupling the inverter to the electric motor. The inverter is disposed in the mobile machine in a vertical orientation at the rear end of the machine.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Applicant: Caterpillar Inc.
    Inventors: Randy D. Stoecker, David A. Gleissner, Lance M. Cowper, Kurt D. Smeltzer
  • Slot adapter for cleaning heat exchanger system and machine using same
    Publication number: 20080257528
    Abstract: A machine having a heat exchanger system includes a heat exchanger guard including first and second sidewalls. The first sidewall is adjacent a core of the heat exchanger system. A first slot adapter is positioned over an opening formed in the first sidewall. The first slot adapter is vertically oriented and includes a first slot opening for receiving a compressed air cleaning wand therethrough. A cover is fixedly attached to the first slot adapter and is movable between an open position and a closed position.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 23, 2008
    Inventors: Craig M. Johnson, Randy D. Stoecker, Mark H. Smith