Edge sharpener for skis
OwnerWilliam J. Beckinghaminventor
Life of this patent
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Abstract
According to the present invention there is provided an apparatus for sharpening an elongate edge, especially the blade edge of a ski. The apparatus comprises an abrasive disc set in a housing, a motor unit for rotating the disc about its axis, a guide surface parallel to the plane of the disc, guide means defining a guide plane substantially at right angles to the guide surface, and means to bias the disc axially to a position just proud of the guide surface.
Claims7
Apparatus for sharpening an elongate edge, especially the blade at the edge of a ski, comprising an abrasive disc set in a housing, an electric motor for rotating the disc about its axis, a guide surface parallel to the plane of the disc, and guide means defining a guide plane substantially at right angles to the guide surface, wherein the motor includes an axially-movable spindle to which the disc is fastened, and a permanent field magnet positioned so as to apply force on the spindle to bias the disc towards the motor at all times.
Dependencies are inferred from the claim text.