Patents by Inventor David H. Voisard

David H. Voisard 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 drive gerotor pump
    Patent number: 4747744
    Abstract: A gerotor pump construction having a magnetic female gerotor member which is magnetically coupled to a drive source through a non-magnetic cap. The female gerotor element is configured with top and side wall portions which define the pump chamber so that friction is reduced at the top interface with the male gerotor.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: May 31, 1988
    Assignee: Eastman Kodak Company
    Inventors: Alexander L. Dominique, David H. Voisard
  • Drive unit for flexshaft vibrators
    Patent number: D269522
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: June 28, 1983
    Assignee: Koehring Company
    Inventors: Lee E. Reichel, David H. Voisard