Patents by Inventor Chris A. Grimsrud

Chris A. Grimsrud 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: 5584480
    Abstract: A portable sports target frame is described for numerous sports games in which a projectile such as a ball or puck is used. The target frame includes an elongated cross member with uprights mounted at opposed ends. The uprights are mounted by an angular adjustment that enables selective pivotal adjustment of the uprights to positions simulating different sports targets. The cross member is held in the selected angular position by a parallelogram linkage including base standards and a parallel stabilizing link mounting the elongated cross member to a base for pivotal movement while maintaining the uprights in selected angular orientations. A latch is mounted between the linkage and base to permit selective angular positioning of the base standard relative to a platform. A ball or other projectile may be mounted to the platform by a tether which includes an elastic part secured to the projectile and an inelastic part extending to the projectile.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: December 17, 1996
    Inventor: Chris A. Grimsrud
  • Patent number: 4247085
    Abstract: A bumper for a vehicle equipped with a power operated winch. The bumper being longitudinally slidable in a guide that is pivoted to the vehicle on a fore-and-aft axis so the bumper can be placed in either a horizontal position to serve as a vehicle bumper or in a vertical position where it is also vertically slidable. A combined pulley and guide is positionable on either the guide or the bumper so that a cable from the winch can slide the bumper upwardly to function as a jack or lifter for an external load or to slide the bumper downwardly to function as a jack to lift the vehicle itself. A further pulley can be mounted on a wing pivoted to an end of the bumper and the winch cable can thus be directed over that further pulley to function as a hoist. Locking pins are provided to lock the bumper in selected positions along its guide.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: January 27, 1981
    Inventor: Chris Grimsrud