Patents by Inventor Richard D. Killam

Richard D. Killam 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).

  • Magnetic feedthrough manipulator
    Patent number: 5514925
    Abstract: A magnetic feedthrough manipulator adapted to be sealed to a chamber for inserting a manipulator shaft capable of rotational and longitudinal movement. The shaft is axially coupled to a ferromagnetic armature having an even number of longitudinal surface splines freely movable within a nonmagnetic tubular housing and which is controlled by alternately polarized magnets in a frame that slides and rotates on the outer surface of the housing. Two or more manipulator shafts may be controlled independently by a like number of armatures in the same housing.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: May 7, 1996
    Assignee: Thermionics Northwest, Inc.
    Inventors: James N. Worthington, Richard D. Killam