Patents by Inventor David Pilkinton

David Pilkinton 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).

  • Collapsible metal truss
    Patent number: 6634152
    Abstract: Two embodiments of a collapsible metal roof truss are disclosed. Both embodiments are made up jackknife foldable left and right heel sections, a jackknife foldable peak section and a center bottom chord. In the flat ceiling embodiment the center bottom chord can be solid. In the second cathedral ceiling embodiment the center bottom chord is split into two pivotally interconnected sections and a vertical web leg is added. The truss can be assembled in a variety of shapes and sizes and configurations and is easily collapsed after partial prefabrication for convenient shipping.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: October 21, 2003
    Inventor: David Pilkinton