Patents Assigned to Richard A. Haack
  • Hockey puck having self-leveling means
    Patent number: 6146293
    Abstract: A hockey puck having a cavity and a self leveling weight disposed therein for causing the puck to topple from its side to a face when rolling and for maintaining a face of the puck substantially parallel to the playing surface.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: November 14, 2000
    Assignees: Kevin Chinn, Richard A. Haack
    Inventors: Kevin S. Chinn, Richard A. Haack