Patents by Inventor Jeffrey Pickup

Jeffrey Pickup 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: 5603506
    Abstract: A novel dart is equipped with a dart point contraction system which allows the dart point to contract into the body or barrel of the dart as when the dart point impacts wire, or staples and the like which surmount boundaries of denominated regions of a dart board. The dart body defines a cylindrical cavity into which the downstream end of the dart point can reciprocatingly travel since it also is cylindrical and comes to rest against the dart body at the end of its travel. It is as a result of kinetic energy of flight that even though the dart point may have impacted a boundary wire or even a denominated region of the dart board, dart "bounce-out" is inhibited by the momentum of dart point upstream end travelling into the dart body housing. Because of a tapered furrel in the front portion of the dart body, the whole dart point system furrel and point may be simply removed as by (strongly) pulling or to be replaced most conveniently with a simple extraction tool.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: February 18, 1997
    Inventor: Jeffrey Pickup
  • Patent number: 5248151
    Abstract: A novel dart is equipped with a dart point contraction system which allows the dart point to contract into the body or barrel of the dart as when the dart point impacts wire, or staples and the like which surmount boundaries of denominated regions of a dartboard. The dart body defines a cylindrical cavity into which the downstream end of the dart point can reciprocatingly travel since it also is cylindrical and comes to rest against the dart body at the end of its travel. It is as a result of the kinetic energy of flight that even though the dart point may have impacted a boundary wire or even a denominated region of the dartboard, that "bounce-out" is inhibited by the cylindrical portion of the dart point travelling in the cylindrical cavity of the dart body when impact occurs.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: September 28, 1993
    Inventor: Jeffrey Pickup