Patents by Inventor Gerard M. Berard

Gerard M. Berard 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).

  • Magnetically-controlled rotary seal
    Patent number: 8038155
    Abstract: A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such that the magnetic repulsion force separates the first and second sealing faces before hydrodynamic or hydrostatic forces associated with rotation of the second sealing member become sufficient to prevent the first and second sealing faces from contacting.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: October 18, 2011
    Assignee: Eaton Corporation
    Inventors: Xiaoqing Zheng, Gerard M. Berard
  • MAGNETICALLY-CONTROLLED ROTARY SEAL
    Publication number: 20080042364
    Abstract: A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such that the magnetic repulsion force separates the first and second sealing faces before hydrodynamic or hydrostatic forces associated with rotation of the second sealing member become sufficient to prevent the first and second sealing faces from contacting.
    Type: Application
    Filed: July 10, 2007
    Publication date: February 21, 2008
    Applicant: EATON CORPORATION
    Inventors: Xiaoqing Zheng, Gerard M. Berard