Patents by Inventor Glen Ekstrom

Glen Ekstrom 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: 5161516
    Abstract: A compressed gas gun having a trigger mechanism including a body member having a passage through which a valve stem passes. A trigger arm is pivotably secured to the body member and includes a finger grip and a cam surface for bearing against a wall of the internal chamber of the gun to move the body member rearwardly upon actuation of the trigger arm. Rearward movement of the body member moves the valve stem rearward to overcome a spring force to release gas through the valve stem into the barrel of the gun to propel a projectile, such as a paint ball, arrow or harpoon.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: November 10, 1992
    Inventor: Glen Ekstrom
  • Patent number: 5086749
    Abstract: An arrow gun and method for propelling arrows or harpoons in which the gun includes a compressed gas source such as compressed air or CO.sub.2, a handle and trigger arrangement, and a high pressure air passageway system for linking the barrel to the gas source to propel or discharge the arrow. The arrow or harpoon is hollow and is slid over the barrel of the gun so that the barrel guides the arrow upon firing. The air passageway system is responsive to the actuation of the trigger such that the gun when loaded is not subject to pressure build-up and thus avoids accidental discharge hazards. Arrows with or without fletching may be used and are held in place when loaded without latching or locking. Arrows without fletching are held in the loaded position by a gripping means arranged in the vicinity of the point where the barrel connects to the gun, while arrows with fletching are engaged in a shroud cover which surrounds the barrel at the gun handle end.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: February 11, 1992
    Inventor: Glen Ekstrom
  • Patent number: 4890597
    Abstract: An arrow gun and method for propelling arrows or harpoons in which the gun includes a compressed gas source such as compressed air or CO.sub.2, a handle and trigger arrangement, and a high pressure air passageway system for linking the barrel to the gas source to propel or discharge the arrow. The arrow or harpoon is hollow and is slid over the barrel of the gun so that the barrel guides the arrow upon firing. The air passageway system is responsive to the actuation of the trigger such that the gun when loaded is not subject to pressure build-up and thus avoids accidental discharge hazards. Arrows with or without fletching may be used and are held in place when loaded without latching or locking. Arrows without fletching are held in the loaded position by a tapered seating gap arranged at the point where the barrel connects to the gun, while arrows with fletching are engaged in a shroud cover which surrounds the barrel at the gun handle end.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: January 2, 1990
    Assignee: Swivel Machine Works, Inc.
    Inventor: Glen Ekstrom