Patents by Inventor Jonathan M. Peiffer

Jonathan M. Peiffer 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).

  • Electrical motor cooling design
    Patent number: 10615663
    Abstract: An electrical machine comprising a rotor; a stator comprising a lamination stack that includes a plurality of laminations aligned coaxially, the lamination stack defining a central bore sized to receive the rotor; and a casing defining a central bore sized to receive the stator, the casing comprising a cooling circuit intended for circulation of a cooling fluid, the cooling circuit comprising an inlet opening for letting cooling fluid in, the inlet opening positioned at the center of a lateral wall of the casing, and a first fluid passage and a second fluid passage originating from the inlet opening, extending from the center of a lateral wall of the casing towards a corresponding end of the casing.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 7, 2020
    Assignee: DEERE & COMPANY
    Inventors: Jonathan M. Peiffer, Robert K. Salamon
  • ELECTRICAL MOTOR COOLING DESIGN
    Publication number: 20190252939
    Abstract: An electrical machine comprising a rotor; a stator comprising a lamination stack that includes a plurality of laminations aligned coaxially, the lamination stack defining a central bore sized to receive the rotor; and a casing defining a central bore sized to receive the stator, the casing comprising a cooling circuit intended for circulation of a cooling fluid, the cooling circuit comprising an inlet opening for letting cooling fluid in, the inlet opening positioned at the center of a lateral wall of the casing, and a first fluid passage and a second fluid passage originating from the inlet opening, extending from the center of a lateral wall of the casing towards a corresponding end of the casing.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 15, 2019
    Inventors: JONATHAN M. PEIFFER, ROBERT K. SALAMON