Patents by Inventor Leon R. Burkholder

Leon R. Burkholder 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: 7644742
    Abstract: The woodworking machine for shaping molding has a hollow cylindrical cartridge with end caps having openings defined therein adapted for inserting a blank strip of molding through the cartridge. Robotic grippers advance the molding strip through the cartridge in indexed increments. A cutter assembly is mounted on a movable table, the cutter assembly having a plurality of spaced apart cutters. An electronic control system, preferably including a programmable logic controller, causes the grippers to grip the blank molding, insert the blank through the cartridge, actuate the cutter assembly and move the table so that the cutters simultaneously cut a plurality of notches in the molding, retract the cutter assembly, advance the molding the indexed distance, and automatically repeat the cycle, ejecting the strip when notches have been formed in the entire length of the molding. The machine may be used to form dental molding.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: January 12, 2010
    Inventor: Leon R. Burkholder
  • Publication number: 20080017274
    Abstract: The woodworking machine for shaping molding has a hollow cylindrical cartridge with end caps having openings defined therein adapted for inserting a blank strip of molding through the cartridge. Robotic grippers advance the molding strip through the cartridge in indexed increments. A cutter assembly is mounted on a movable table, the cutter assembly having a plurality of spaced apart cutters. An electronic control system, preferably including a programmable logic controller, causes the grippers to grip the blank molding, insert the blank through the cartridge, actuate the cutter assembly and move the table so that the cutters simultaneously cut a plurality of notches in the molding, retract the cutter assembly, advance the molding the indexed distance, and automatically repeat the cycle, ejecting the strip when notches have been formed in the entire length of the molding. The machine may be used to form dental molding.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 24, 2008
    Inventor: Leon R. Burkholder