Patents by Inventor Robert Clark Kirkwood

Robert Clark Kirkwood 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).

  • Vibration isolation system for an electric motor
    Patent number: 6045112
    Abstract: A vibration isolation system (20) reduces vibrations produced by an operating electric motor (22). A motor retainer ring (24) fits into a motor retaining ring isolator (40) which is placed into a mounting surface opening (52) such that protrusions (48) contact a mounting surface (50). An upper motor cover (54) and a lower motor cover (60) are positioned to surround motor (22) while protruding ridges (62) space the interior surface away from motor (22). Fasteners (32) fit through retainer mounting holes (30) and attach to threaded holes (38) such that protrusions (58) of the upper motor cover (54) contact the mounting surface (50).
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: April 4, 2000
    Assignee: Calsonic North America, Inc.
    Inventor: Robert Clark Kirkwood
  • Vibration isolation system for an electric motor
    Patent number: 6021993
    Abstract: A vibration isolation system (20) reduces vibrations produced by an operating electric motor (22). A motor retainer ring (24) fits into a motor retaining ring isolator (40) which is placed into a mounting surface opening (52) such that protrusions (48) contact a mounting surface (50). An upper motor cover (54) and a lower motor cover (60) are positioned to surround motor (22) while protruding ridges (62) space the interior surface away from motor (22). Fasteners (32) fit through retainer mounting holes (30) and attach to threaded holes (38) such that protrusions (58) of the upper motor cover (54) contact the mounting surface (50).
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: February 8, 2000
    Assignee: Calsonic North America, Inc.
    Inventor: Robert Clark Kirkwood