Patents by Inventor Michael George Hilldoerfer

Michael George Hilldoerfer 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).

  • Mechanical face seal housing with spring wall
    Patent number: 8714557
    Abstract: A mechanical face seal housing includes an annular seal-receiving section, a seal force transfer section that extends axially from the annular-seal receiving section, and an annular contact section axially spaced from the seal-receiving section. An annular spring between the contact section and a support wall provides a bias force against the contact section. The contact section transfers the bias force to the seal-receiving section to provide a sealing force between a graphitic carbon ring and a rotatable seal surface.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: May 6, 2014
    Assignee: United Technologies Corporation
    Inventors: Jonathan L. Miller, Michael George Hilldoerfer