Gyroscopically stabilized hockey puck
OwnerMichael R. Evermaninventor
Life of this patent
Estimating the term…
Abstract
A hockey puck for playing on surfaces other than ice, for example floors and streets which do not enjoy the smoothness and low coefficient of friction of ice. The puck has a hub, two disc-like face plates, and a bearing joining them so the hub rotates relative to the face plates. The outer peripheral surface of the hub projects radially beyond the face places, and axially recedes from them so the puck can tilt significantly without tripping on the surface.
Claims9
A hockey puck for play on playing surfaces other than ice which do not enjoy the smoothness and low coefficient of friction of ice, said puck being circular and having a central axis, said puck comprising:
- a first and a second disc-like face plate, each having a face for contact with said surfaces;
- a hub between said face plates;
- bearing means between said face plates freely rotating said hub between said face plates;
- fastener means joining said face plates, hub and bearing means, there being clearance between said face plates and hub to enable the hub to rotate freely relative to said face plates;
- said hub having an outer peripheral surface that projects radially beyond both of said face plates, and recedes axially from their outer faces to provide edge clearance from said playing surfaces when the puck is tilted relative to the playing surface.
Dependencies are inferred from the claim text.