Patents by Inventor Hamid Rastegar

Hamid Rastegar 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).

  • Seal assemblies and related methods
    Patent number: 10184564
    Abstract: Spring energized seal assemblies configured for use in static or dynamic application and methods of using and making same are provided. The seal assemblies can each have a sealing component and optionally a backup ring or a locking ring or both. An annular spring can be used with a spring groove of either the backup ring or the locking to facilitate assembling of the mentioned components of a seal assembly onto each other and the entire seal assembly into a seal cavity of a housing.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: January 22, 2019
    Assignee: Bal Seal Engineering, Inc.
    Inventors: Peter J. Balsells, Hamid Rastegar
  • SEAL ASSEMBLIES AND RELATED METHODS
    Publication number: 20160223086
    Abstract: Spring energized seal assemblies configured for use in static or dynamic application and methods of using and making same are provided. The seal assemblies can each have a sealing component and optionally a backup ring or a locking ring or both. An annular spring can be used with a spring groove of either the backup ring or the locking to facilitate assembling of the mentioned components of a seal assembly onto each other and the entire seal assembly into a seal cavity of a housing.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Applicant: Bal Seal Engineering, Inc.
    Inventors: Peter J. Balsells, Hamid Rastegar
  • Elastic seals with dynamic lips and related methods
    Patent number: 9194497
    Abstract: Seal assemblies and methods that include a seal lip that comprises an extended portion with generally constant cross-sectional width for low and generally constant friction during wear are described. The seal lip is loaded against a dynamic member by the aid of a spring energizer. The extended portion of the seal lip maintains constant torque resistance during movement of the dynamic member.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: November 24, 2015
    Assignee: Bal Seal Engineering, Inc.
    Inventor: Hamid Rastegar
  • ELASTIC SEALS WITH DYNAMIC LIPS AND RELATED METHODS
    Publication number: 20150061227
    Abstract: Seal assemblies and methods that include a seal lip that comprises an extended portion with generally constant cross-sectional width for low and generally constant friction during wear are described. The seal lip is loaded against a dynamic member by the aid of a spring energizer. The extended portion of the seal lip maintains constant torque resistance during movement of the dynamic member.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventor: Hamid Rastegar