Patents by Inventor Henry Utzinger

Henry Utzinger 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).

  • Game dart
    Patent number: 5498004
    Abstract: A dart barrel having a surface coating applied thereto that provides the dart barrel with an increased resistance to wear and an increased coefficient of friction. The surface coating is sprayed onto the dart barrel in a semi-molten form. The dart barrel is then heat processed wherein the dart barrel is heated and the material of the surface coating and material of the dart barrel diffuse into each other bonding the two materials together.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: March 12, 1996
    Assignee: Kulite Tungsten Corporation
    Inventors: Gaetano Mariella, Ronald Kurtz, Henry Utzinger
  • Flexible point dart
    Patent number: 5271625
    Abstract: A dart point for a game dart fabricated from a resin reinforced composite laminate wherein the dart point deflects around a metal rib on a dartboard when the dart point strikes the metal rib at a point off-center. Furthermore, the dart point destructively deforms when the dart point strikes the direct center of a metal rib on the dartboard, thereby changing the point of contact between the dart point and the wire so as to direct the dart point into the dartboard at the side of the metal rib contacted.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: December 21, 1993
    Assignee: Kulite Tungsten Corporation
    Inventors: Ronald Kurtz, Gaetano Mariella, Henry Utzinger
  • Selectively adjustable darts
    Patent number: 3957271
    Abstract: There is disclosed a composite game dart assembly wherein a point end has coupled thereto a barrel shaft upon which shaft, a plurality of annular weight members are emplaced, the barrel shaft is then coupled to a flight or feather accommodating assembly by means of a screw mechanism to enable a user to remove the flight accommodating assembly for the selective emplacement of the annular weights of different materials to control the overall weight and length characteristics of the dart assembly.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: May 18, 1976
    Assignee: Kulite Tungsten Corporation
    Inventors: Ronald A. Kurtz, Henry Utzinger