Patents by Inventor Amy WARKENTIN

Amy WARKENTIN 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).

  • Clamping system for fuel cell stack, and fuel cell system comprising such a clamping system
    Patent number: 11848469
    Abstract: A fuel cell system comprises a clamping system for a fuel cell stack, the clamping system including a plurality of disc springs. The disc springs are connected together in a bonded and/or force-fitting manner on a plane perpendicular to an axis of rotational symmetry running through the center of the circle described by the disc.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 19, 2023
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Ian Stewart, Campbell Perry, Amy Warkentin
  • CLAMPING SYSTEM FOR FUEL CELL STACK, AND FUEL CELL SYSTEM COMPRISING SUCH A CLAMPING SYSTEM
    Publication number: 20210013537
    Abstract: A fuel cell system comprises a clamping system for a fuel cell stack, the clamping system including a plurality of disc springs. The disc springs are connected together in a bonded and/or force-fitting manner on a plane perpendicular to an axis of rotational symmetry running through the center of the circle described by the disc.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 14, 2021
    Inventors: Ian STEWART, Campbell PERRY, Amy WARKENTIN