Patents by Inventor Keith J. Grierson

Keith J. Grierson 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: 5059042
    Abstract: An improved bearing retainer for a vacuum cleaner including a plurality of inwardly projecting retainer tabs for securing the bearing retainer in a fixed location relative to a vacuum cleaner motor housing and a bearing assembly, said bearing assembly being mounted on a motor shaft, which motor shaft projects through said vacuum cleaner motor housing.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: October 22, 1991
    Assignee: Whirlpool Corporation
    Inventor: Keith J. Grierson
  • Patent number: 4469967
    Abstract: Coil retainer structure for use in an electric motor. The coil retainer extends about the periphery of an end face of the motor core and includes an offset portion extending about the periphery of the core axially inwardly of the end face to permit a housing member to have a portion thereof facially abutted to the core end face adjacent the offset portion. A coil is wound on the core and has a portion retained by the retainer. Securing structure is provided for securing the housing member directly to the core in facially abutted relationship with the adjacent end face. In the illustrated embodiment, coil retainers having such offset portions are provided at each of the opposite end faces of the core. One of the coil retainers is further provided with coil end terminal structure adjacent the offset portion.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: September 4, 1984
    Assignee: Whirlpool Corporation
    Inventors: Keith J. Grierson, Eugene H. Mokrzycki