Patents by Inventor Dennis Clifford Williams

Dennis Clifford Williams 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: 20110041659
    Abstract: A duct board cutting table provides accurate cutting of duct board while providing portability and moderate cost. A table top, which is generally large enough to accept most of a sheet of duct board, has a cross-rail assembly mounted above it that slides along the length of the duct board. A duct board cutting tool slides along the length of the cross-rail assembly, which is along the width of the duct board, in order to move the tool's blade through the duct board to make a cut. The tool may be a hand tool, with a tool fixture provided with the table that can slidably mount the hand tool within the cross-rail assembly at multiple heights above the table to accommodate duct board of various thicknesses. A stopping mechanism can be included to stop the cross-rail assembly at multiple cutting positions using removable stop blocks.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 24, 2011
    Inventor: Dennis Clifford Williams