Patents by Inventor Gary L. Knirk

Gary L. Knirk 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).

  • Patent number: 5335529
    Abstract: A tube bending fixture having a plurality of tube bending tools, a pedestal for each tube bending tool, a grid plate for supporting each pedestal, and a grid plate support for supporting the grid plates in a predetermined arrangement. The fixture is built from a simulation program of tool selection, tool location and bending sequence. The simulation program is entered into a computer for viewing to insure that the tools are properly selected and properly located to permit operation in the desired sequence without interference. The computer will output a list of the tools needed and a list of coordinates to establish tool location. The bending tools have clamp rolls which are relatively movable between open and closed positions, and when closed define an arcuate groove. A bending roll is provided for bending a tube around the groove.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: August 9, 1994
    Assignee: Bundy Corporation
    Inventors: Robert A. Crowdus, Gary L. Knirk, John K. Silverson