Patents by Inventor Stuart Vernon Allen

Stuart Vernon Allen 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).

  • Connector for square or rectangular structural tubing
    Patent number: 6062761
    Abstract: A connector for standard commercial square or rectangular tubing. The connector consists of a cubic or otherwise appropriately shaped block with projecting sections in each direction where tubing is intended to be connected. The projecting sections fit loosely inside the tubing. Each projection has internal cams that drive radial pins outward to engage the inner surface of the tubing. Cam movement is accomplished by a screw perpendicular to the axis of the tubing.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: May 16, 2000
    Inventor: Stuart Vernon Allen
  • Connector for square or rectangular structural tubing
    Patent number: 5904437
    Abstract: A connector for square or rectangular tubing. The connector consists of a cubic or otherwise appropriately shaped block with projecting sections in each direction where tubing is intended to be connected. The projecting sections fit loosely inside the tubing. Each projection has an internal cam that is rotated in place to drive radial pins outward to engage the inner surface of the tubing. Cam rotation is accomplished by screw means that are mounted transverse to the axis of the tube and engage the cam tangentially. In some embodiments, additional screw means engage the cam to cause contrary rotation to disassemble the connection.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: May 18, 1999
    Inventor: Stuart Vernon Allen