Patents by Inventor Doug A. Cusack

Doug A. Cusack 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).

  • Patent number: 6924021
    Abstract: A complex-shaped carbon fiber structural member including a multiplicity of carbon epoxy fiber bundles surrounded by a unidirectional carbon fiber rope and its method of manufacture are provided. The fiber bundles are formed from large sheets of unidirectional carbon fiber materials cut into small strips, with the strips then being randomly oriented in the form of a sheet of randomized fiber bundles. The strips, and the fibers in the strips, cross over one another so as to form a layer of material that has a relatively uniform strength in all directions. The sheets of randomized carbon epoxy fiber bundles are cut into preforms for the structural part being made. Several preforms are stacked on top of each other in order to provide material to make the part of a desired thickness. To reinforce the bundles within the part, particularly along its outer periphery, the preforms are wrapped prior to molding with an elongated rope of unidirectional carbon fibers.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 2, 2005
    Assignee: Trek Bicycle Corporation
    Inventors: James E. Colegrove, Chad Manuell, Doug A. Cusack