Patents by Inventor David Joseph Kawecki

David Joseph Kawecki 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).

  • Method of continuous automated manufacture of a linear sheet metal construction truss
    Patent number: 9770793
    Abstract: A linear construction truss comprising a hollow shell with a square cross section and a core composed of linked tetrahedra, and a method of manufacturing of said linear construction truss comprising the steps of bending sheet metal strips to create a tetrahedral core such that the faces of the tetrahedral alternate between approximately 109.5 degrees and approximately 289.5 degrees throughout the length of the sheet metal strips. Strips of sheet metal are further bent to form a hollow shell with a square cross section rigidly attached to the core in a spiral pattern. The triangular faces are chamfered to better enable the connection between the core and hollow shell. The sheet metal is cut in such a way such that the perforations do not impinge on the edges of the tetrahedral.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: September 26, 2017
    Inventor: David Joseph Kawecki
  • SHEETMETAL CONSTRUCTION TRUSS AND ITS METHOD OF CONTINUOUS AUTOMATED MANUFACTURE
    Publication number: 20170225279
    Abstract: A linear construction truss comprising a hollow shell with a square cross section and a core composed of linked tetrahedra, and a method of manufacturing of said linear construction truss.
    Type: Application
    Filed: August 16, 2013
    Publication date: August 10, 2017
    Inventor: David Joseph Kawecki
  • Sheetmetal Construction Truss and its Method of Continuous Automated Manufacture
    Publication number: 20150047199
    Abstract: A linear construction truss comprising a hollow shell with a square cross section and a core composed of linked tetrahedra, and a method of manufacturing of said linear construction truss.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Inventor: David Joseph Kawecki
  • Sheet Metal Construction Truss and its Method of Continuous Automated Manufacture
    Publication number: 20120159895
    Abstract: A linear construction truss comprising a hollow shell with a square cross section and a core composed of linked tetrahedra, and a method of manufacturing of said linear construction truss.
    Type: Application
    Filed: April 1, 2011
    Publication date: June 28, 2012
    Inventor: David Joseph Kawecki