Patents by Inventor Mehdi HASHEMIAN

Mehdi HASHEMIAN 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).

  • Publication number: 20240102557
    Abstract: A packing seal for a reciprocating pump includes a header ring. The header ring has an annular body with an inner surface and an outer surface. A plurality of inner wall segments is formed on at least one of the inner surface and the outer surface of the header ring.
    Type: Application
    Filed: September 27, 2023
    Publication date: March 28, 2024
    Inventors: Mehdi Hashemian, Scott C. Schuette, William Michael Hedger, Jr., Juan Villegas
  • Patent number: 9938793
    Abstract: A spherical blow out preventer annular seal is provided for sealing around a pipe. The blow out preventer includes a housing adapted to be disposed around the pipe and having a generally spherical interior surface. A seal body includes a plurality of metallic inserts arranged side by side in an annular pattern and each includes a base portion and a wedge shaped extension having a partially spherical outer surface terminating at a tip end. An annular elastomeric body is over-molded on the base portions of the plurality of metallic inserts with the partially spherical outer surface of each of the wedge shaped extensions being supported in engagement with the interior spherical surface of the housing. A piston is engaged with the seal body to press the metallic inserts upward and inward against the generally spherical interior surface of the housing so as to come together tangentially around the pipe.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: April 10, 2018
    Assignee: Freudenberg Oil & Gas, LLC
    Inventors: Mehdi Hashemian, Andreas Hagen, Christopher Neumann, Bernd Altmueller
  • Publication number: 20170145770
    Abstract: A spherical blow out preventer annular seal is provided for sealing around a pipe. The blow out preventer includes a housing adapted to be disposed around the pipe and having a generally spherical interior surface. A seal body includes a plurality of metallic inserts arranged side by side in an annular pattern and each includes a base portion and a wedge shaped extension having a partially spherical outer surface terminating at a tip end. An annular elastomeric body is over-molded on the base portions of the plurality of metallic inserts with the partially spherical outer surface of each of the wedge shaped extensions being supported in engagement with the interior spherical surface of the housing. A piston is engaged with the seal body to press the metallic inserts upward and inward against the generally spherical interior surface of the housing so as to come together tangentially around the pipe.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Applicant: Freudenberg Oil & Gas, LLC
    Inventors: Mehdi HASHEMIAN, Andreas HAGEN, Christopher NEUMANN, Bernd ALTMUELLER