Patents by Inventor Karl Rotter

Karl Rotter 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: 5816964
    Abstract: A puck for playing hockey and hockey-like games on a variety of surfaces. The puck has a body of generally cylindrical shape with opposed major faces and an internal chamber therein containing a mass which is movable within the chamber whereby the center of gravity of the puck can be altered, as by application of a force to the puck in a direction generally parallel to the major faces. The puck body includes mating halves held together by a resilient band extending around the cylindrical sidewall of the body, the band having spaced ribs thereon mating with associated grooves in the sidewalls of the mating halves.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: October 6, 1998
    Inventors: Ross Ainslie, Karl Rotter
  • Patent number: 5353442
    Abstract: A plunger is described which utilizes the suction cup principle to its fullest potential. The suction cup action is actuated by a lever arm which is operatively connected to the suction cup rod. This device can further contain a splash guard which will eliminate splashing or spilling caused by the rapid plunger action.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: October 11, 1994
    Assignee: Rapid Action Equipment Limited
    Inventor: Karl Rotter
  • Patent number: 4803606
    Abstract: The invention relates to a mobile universal shop light particularly suited for use in illuminating various aspects of motor vehicles and related machinery during maintenance and repair. The mobile shop light of this invention is comprised of a lower stand mounted on means to provide mobility, a lower stand bar rigidly attached to the lower stand and which extends upward from the lower stand in a direction perpendicular to the plane of the lower stand, an upper stand bar which telescopes into the lower stand bar so as to allow the upper end of the upper stand bar to be positioned at different heights, means to secure the upper stand bar in position relative to the lower stand bar, attaching means connected to the upper end of the upper stand bar which adjustably attaches to the upper stand bar an elongated light fixture containing illuminating means and power supply means.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: February 7, 1989
    Inventor: Karl Rotter