Patents by Inventor Dave Hoffmann

Dave Hoffmann 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: 20060040162
    Abstract: A method for making a component of a fuel cell utilizes a rotary die forming station for shaping a web of material into a configuration corresponding to the component. The component may comprise an exchanger plate. Also disclosed is a method for fabricating a fuel cell assembly wherein a gasket is affixed between portions of two exchanger plates, and the affixation may be accomplished by rotary die forming. Also disclosed are fuel cells and fuel cell assemblies made by these methods.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 23, 2006
    Inventors: Joseph Jurica, Edward Engler, Dave Hoffmann
  • Publication number: 20040134139
    Abstract: A combined dock seal and shelter structure for a truck loading dock includes a vehicle-engaging seal member that is removably or replaceably attached to a compressible side pad. A backer can be used to help mount the side pad to a wall, adjacent to a doorway. The side pad preferably comprises a resiliently compressible foam core within a pliable cover 4, while the seal member comprises a pliable curtain or semi-rigid panel that are flexible but less compressible than the foam core.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Inventors: Jeff Busch, Dave Hoffmann, Greg Thill, Gary Borgerding, Charlie Digmann