Patents by Inventor Jeffrey D. Coop

Jeffrey D. Coop 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).

  • Nail driving system
    Patent number: 5709332
    Abstract: Wallboard having a skin outer surface is attached to wall and ceiling framing by nails having heads with a convex bottom surface and a concave top surface. A driver blade is used having an outer end with a shape complimentary to the concave nail top surface and a diameter which is larger than the nail head such that no sharp edges are presented to the wallboard skin around the nail head, thereby avoiding cutting the paper skin.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: January 20, 1998
    Inventor: Jeffrey D. Coop