Patents by Inventor Michael D. Griswold

Michael D. Griswold 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).

  • 3-DIMENSIONAL UNIVERSAL TUBE CONNECTOR SYSTEM
    Publication number: 20100192506
    Abstract: The present invention includes a system for connecting tubes or rods, which are preferably uni-directional pultruded, filament wound, or roll-wrapped carbon-fiber tubes or rods, together to form trusses and other structures using a series of connector pieces preferably bonded together with adhesive.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 5, 2010
    Applicant: ALLRED & ASSOCIATES INC.
    Inventors: Jimmie B. Allred, III, Michael D. Griswold, Michael J. Hall, Matthew A. Bush, Joseph Kummer
  • ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM
    Publication number: 20100163340
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Applicant: ALLRED & ASSOCIATES INC.
    Inventors: Jimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush