Patents by Inventor Frederick A. Simmons

Frederick A. Simmons 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).

  • Recessed screw heads and drivers
    Patent number: 4187892
    Abstract: A screw head is provided with projections on selected of the driver-engageable surfaces of the head to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of the recess during driving and also to provide a temporary stick-fit between the driver and the recess.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: February 12, 1980
    Assignee: Phillips Screw Company
    Inventor: Frederick A. Simmons
  • Tools for punching fastener heads
    Patent number: 4151621
    Abstract: A punch for forming a screw head is provided with grooves which will form projections on selected of the driver-engageable surfaces of the head. The projections are arranged to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of the recess during driving and also to provide a temporary stick-fit between the driver and the recess.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: May 1, 1979
    Assignee: Phillips Screw Company
    Inventor: Frederick A. Simmons
  • Screw heads
    Patent number: 4084478
    Abstract: A screw head is provided with projections on selected of the driver-engageable surfaces of the head to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of engagement with the screw during driving and also to provide a temporary stick-fit between the driver and the screw.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: April 18, 1978
    Assignee: Phillips Screw Company
    Inventor: Frederick A. Simmons