Patents by Inventor Eric Hatch

Eric Hatch 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: 20230421032
    Abstract: A method includes, at a controller: directing current through a set of coil assemblies in an electric motor based on a first commutation technique; in response to an operating speed of the electric motor exceeding a first operating speed threshold, initiating a transition from the first commutation technique to a second commutation technique; during a transition period, directing current through the set of coil assemblies based on the first commutation technique controlled according to a first pulse width modulation scheme and the second commutation technique controlled according to a second pulse width modulation scheme; and, in response to completion of the transition period, directing current through the set of coil assemblies based on the second commutation technique.
    Type: Application
    Filed: May 19, 2023
    Publication date: December 28, 2023
    Inventors: Carlo Kopf, Eric Hatch
  • Patent number: D386416
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: November 18, 1997
    Assignee: Kranson Industries
    Inventors: Randolf C. Kotoucek, Suzanne L. Fenton, Eric Hatch
  • Patent number: D386417
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: November 18, 1997
    Assignee: Kranson Industries
    Inventors: Randolf C. Kotoucek, Suzanne L. Fenton, Eric Hatch