Patents Assigned to Richards Engineering
  • Fuel cell having uniform compressive stress distribution over active area
    Patent number: 5547777
    Abstract: Uniform compressive stress distribution is applied over the active area of a PEMFC stack to increase the contact area between the electrically conductive components of the stack. This increases fuel cell stack efficiency. Fuel cell stack is constructed as a modular component readily connected with like modules for providing fuel cell stack configurations capable of meeting a wide range of power generation for application to vehicles, including submersible vehicles up to utility power requirements.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: August 20, 1996
    Assignee: Richards Engineering
    Inventor: William R. Richards