Patents by Inventor John Frederick Clark

John Frederick Clark 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).

  • Cell voltage monitoring connector system for a fuel cell stack
    Patent number: 9997792
    Abstract: An electrical connection system for cell voltage monitoring in a fuel cell stack. The fuel cell stack comprises a plurality of layers and a plurality of electrically conductive connection tabs extending outwardly from at least one face of the stack. The electrically conductive connection tabs are each formed as a laterally extending free portion of a flexible sealing gasket. Other portions of the gasket are disposed to provide sealing engagement between at least two layers of the fuel cell stack. By using the gasket material to form such electrical connection tabs, rather than flow plates, the connection tabs are made flexible to make it easier to connect to standard arrays of connectors in connector assemblies.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: June 12, 2018
    Assignee: Intelligent Energy Limited
    Inventors: Harry John Karmazyn, John Frederick Clark, Richard Albert Peart, Mark Llewellyn Jones
  • Cell Voltage Monitoring Connector System for a Fuel Cell Stack
    Publication number: 20140227625
    Abstract: An electrical connection system for cell voltage monitoring in a fuel cell stack. The fuel cell stack comprises a plurality of layers and a plurality of electrically conductive connection tabs extending outwardly from at least one face of the stack. The electrically conductive connection tabs are each formed as a laterally extending free portion of a flexible sealing gasket. Other portions of the gasket are disposed to provide sealing engagement between at least two layers of the fuel cell stack. By using the gasket material to form such electrical connection tabs, rather than flow plates, the connection tabs are made flexible to make it easier to connect to standard arrays of connectors in connector assemblies.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 14, 2014
    Inventors: Harry John Karmazyn, John Frederick Clark, Richard Albert Peart, Mark Llewellyn Jones