Patents by Inventor Navinchandra R. Patel

Navinchandra R. Patel 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: 4881001
    Abstract: In a dynamoelectric machine, a stator assembly is mounted directly in a bore of a housing for surrounding a rotor. The bore has an axially extending slot. The stator assembly includes a plurality of laminations bonded together in a stacked array for circumferentially surrounding the rotor. A given number of the laminations at one end of the stator assembly are radially enlarged to define a tab-like flange for projecting into the slot of the housing to prevent the stator assembly from rotating relative to the housing. Complementary axially abutting shoulders are provided between the stator assembly and the housing to prevent relative rotation therebetween.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: November 14, 1989
    Assignee: Sundstrand Corporation
    Inventors: Navinchandra R. Patel, Robert A. Schwarz
  • Patent number: 4674178
    Abstract: Loose or frayed fibers at the axial end of a fibrous wrap 42 about the periphery of rotor hub 10 mounting permanent magnets 22 are avoided by placing steps 40 between first and second diametral sections 36, 38 in side plates 32, 34 sandwiching the magnets 22 with the wrap preventing radial displacement of the magnets and the side plates preventing axial displacement.
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: June 23, 1987
    Assignee: Sundstrand Corporation
    Inventor: Navinchandra R. Patel
  • Patent number: 4633113
    Abstract: Loose or frayed fibers at the axial end of a fibrous wrap about the periphery of rotor hub mounting permanent magnets are avoided by placing steps between first and second diametral sections in side plates sandwiching the magnets, with the wrap preventing radial displacement of the magnets and the side plates preventing axial displacement.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: December 30, 1986
    Assignee: Sundstrand Corporation
    Inventor: Navinchandra R. Patel