Patents by Inventor Harold E. Ewing

Harold E. Ewing 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).

  • Vise stop
    Patent number: 5996986
    Abstract: A vise stop that enables an operator to precisely position like parts in a vise for the purpose of successively applying the same machining operation on each of a number of such like parts.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: December 7, 1999
    Inventor: Harold E. Ewing
  • Carousel electric generator
    Patent number: 5625241
    Abstract: A permanent magnet generator or motor having stationary coils positioned in a circle, a rotor on which are mounted permanent magnets grouped in sectors and positioned to move adjacent said coils, and a carousel carrying corresponding groups of permanent magnets through the centers of said coils, the carousel moving with the rotor by virtue of its being magnetically coupled therewith.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: April 29, 1997
    Assignee: Energy Research Corporation
    Inventors: Harold E. Ewing, Russell R. Chapman, David R. Porter