Patents by Inventor Thomas Siebelink

Thomas Siebelink 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: 8091539
    Abstract: A dart gun having a plurality of darts removably connected about a circumferential area of a cylindrical barrel. A spring-biased gear assembly includes an engagement member that is rotatably aligned with the circumferential area of the cylindrical barrel. The spring-biased gear assembly further includes first and second rotary gears having offset teeth. A trigger bar is operable between a first position in abutting contact with the teeth of the first rotary gear and a second position in abutting contact with the teeth of the second rotary gear. A trigger is operably connected to the trigger bar. The trigger includes a forward position that locates the trigger bar in the first position and a rearward position that locates the trigger bar in the second position. Operation of the trigger causes the spring-biased gear assembly to intermittently rotate, thereby causing the lever to disconnect one of the plurality of darts from the circumferential area of the cylindrical barrel.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: January 10, 2012
    Inventor: Thomas Siebelink
  • Publication number: 20100059031
    Abstract: A dart gun having a plurality of darts removably connected about a circumferential area of a cylindrical barrel. A spring-biased gear assembly includes an engagement member that is rotatably aligned with the circumferential area of the cylindrical barrel. The spring-biased gear assembly further includes first and second rotary gears having offset teeth. A trigger bar is operable between a first position in abutting contact with the teeth of the first rotary gear and a second position in abutting contact with the teeth of the second rotary gear. A trigger is operably connected to the trigger bar. The trigger includes a forward position that locates the trigger bar in the first position and a rearward position that locates the trigger bar in the second position. Operation of the trigger causes the spring-biased gear assembly to intermittently rotate, thereby causing the lever to disconnect one of the plurality of darts from the circumferential area of the cylindrical barrel.
    Type: Application
    Filed: November 18, 2009
    Publication date: March 11, 2010
    Inventor: Thomas Siebelink
  • Patent number: 7640922
    Abstract: The present invention includes a foam dart gun having a cylindrically shaped, typically hollow barrel with a plurality of hooks disposed at a first end of the barrel. Inner and outer elastic bands engaged with one another to form an elastomeric band assembly, which is typically engaged to the barrel at least proximate the end of the barrel opposite a trigger.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 5, 2010
    Inventor: Thomas Siebelink
  • Publication number: 20070209646
    Abstract: The present invention includes a foam dart gun having a cylindrically shaped, typically hollow barrel with a plurality of hooks disposed at a first end of the barrel. Inner and outer elastic bands engaged with one another to form an elastomeric band assembly, which is typically engaged to the barrel at least proximate the end of the barrel opposite a trigger.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 13, 2007
    Inventor: Thomas Siebelink