Patents by Inventor Luke A. Ketcham

Luke A. Ketcham 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).

  • Publication number: 20240349436
    Abstract: A power electronics module (PEM) is constructed to convert electricity from an input form to an output form. Electrical power conversion subcircuits having input and output ports are positioned proximal to a front mounting plate. Rigid conductor elements having respective preformed shapes are constructed to electrically interconnect the subcircuits at input and output ports thereof to form a power conversion circuit selected from among multiple power conversion circuits configurable solely by selection of the conductor elements. Other preformed conductor shapes are constructed to interconnect input and output ports of the selected power conversion circuit to ports disposed on a rear mounting plate. A controller is mechanically coupled to the front mounting plate and constructed to operate the semiconductor switches in a prescribed timing that converts the electricity of the input form to the electricity of the output form by the selected power conversion circuit.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 17, 2024
    Applicant: Caterpillar Inc.
    Inventors: Eric M. ANDRIS, Michael R. GARRABRANT, Evan Blair STUMPGES, Luke A. KETCHAM, Daniel P. SERGISON
  • Publication number: 20240164071
    Abstract: An assembly for two (or more) DC/DC converters located in a common enclosure, where the DC/DC converters share a heat sink assembly, such as a shared dual-sided heat sink assembly. The techniques efficiently package the components of the DC/DC converters within a common enclosure and simplify the cooling lines routed to those components.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 16, 2024
    Applicant: Caterpillar Inc.
    Inventors: Michael R. Garrabrant, Luke A. Ketcham, Yingying Kuai, Matthew Ernest Williams, Suudharshana Madhavann