Patents by Inventor Bob Dietrich

Bob Dietrich 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).

  • Sleeve in end rings for permanent magnet rotor
    Patent number: 7812495
    Abstract: A permanent magnet rotor for an electric motor may include a rotor assembly that will hold the magnets in place. A pair of rings is added to the sleeve to tightly engage and press against the end plates and the magnets. This configuration provides additional securement against axial and radially shifting of the magnets.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: October 12, 2010
    Assignee: Honeywell International Inc.
    Inventors: Sam Shiao, Dave Elpern, Terry Morris, Bob Dietrich
  • SLEEVE IN END RINGS FOR PERMANENT MAGNET ROTOR
    Publication number: 20090284093
    Abstract: A permanent magnet rotor for an electric motor may include a rotor assembly that will hold the magnets in place. A pair of rings is added to the sleeve to tightly engage and press against the end plates and the magnets. This configuration provides additional securement against axial and radially shifting of the magnets.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 19, 2009
    Inventors: SAM SHIAO, Dave Elpern, Terry Morris, Bob Dietrich
  • Sealing arrangement for rotary vane-type motors
    Patent number: 4809590
    Abstract: A device for sealing surfaces defined between a collar of a motor shaft and a motor cover comprises a pre-stressed sealing ring mounted at the surfaces which extend at right angles relative to each other, a viscous elastic element for prestressing the sealing ring, and a guide ring positioned between the elastic element and the sealing ring. The sealing ring is positioned between the surfaces to be sealed and is pressed by the guide ring which is displaceable by a pressure medium.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: March 7, 1989
    Assignee: VEB Kombinat Polygraph "Werner Lamberz" Leipzig
    Inventors: Johannes Naumann, Hans-Jurgen Tappert, Klaus Schrader, Bernhard Klose, Bob Dietrich