Patents by Inventor Douglas D. Walker

Douglas D. Walker 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: 7406899
    Abstract: A fastener placement system for placement of screws into bone structure during a medical procedure comprises a power driven screw driver, a fastener carrier system with a series of fasteners temporarily attached thereto and an elongated band structure carried by the fastener carrier system for positioning and advancing the individual fasteners of the series of medical fasteners in a controlled manner to a position to receive a driving tip on the powered screw driver. The head of the fastener and the tip of the screw driver have complementary structures which allow the screw head to be simultaneously grasped by the driver tip and the fastener to be driven in a rotary manner for placement into the bone structure.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: August 5, 2008
    Inventor: Douglas D. Walker
  • Publication number: 20080016989
    Abstract: A fastener placement system for placement of screws into bone structure during a medical procedure comprises a power driven screw driver, a fastener carrier system with a series of fasteners temporarily attached thereto and an elongated band structure carried by the fastener carrier system for positioning and advancing the individual fasteners of the series of medical fasteners in a controlled manner to a position to receive a driving tip on the powered screw driver. The head of the fastener and the tip of the screw driver have complementary structures which allow the screw head to be simultaneously grasped by the driver tip and the fastener to be driven in a rotary manner for placement into the bone structure.
    Type: Application
    Filed: August 18, 2006
    Publication date: January 24, 2008
    Inventor: Douglas D. Walker
  • Patent number: 5822871
    Abstract: A tool that aids in the cutting of a circle in drywall. The tool consists chiefly of a substantially flat main body including a plurality of grooves. The grooves are used to guide a cutting tool (e.g. a drywall knife) in a circular path. A fixing pin is attached at a first end of the main body, and a second raised end of the main body is curved or angled upward so that the end of the tool does not become embedded in the drywall during the cutting operation. The raised end of the tool may also be used to push the tool on its circular path.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: October 20, 1998
    Inventor: Douglas D. Walker