Electric pencil sharpener
AssigneeKetcham & McDougall, Inc.
InventorAnthony J. Verdi
Life of this patent
Estimating the term…
Abstract
A pencil sharpener which includes a sliding safety shield preventing operation of the sharpener with the pencil drawer removed and further preventing a pencil to be inserted into the sharpener so as to actuate the cutter assembly unless the shavings drawer is in its fully closed position. In addition a stop for a positive stop of the sharpening process is provided in transverse relation to the cutter assembly aperture so as to impinge upon the cutter assembly and stop the cutter assembly at a zero clearance position with a holder therefor, so as to prohibit the formation of a burr or other irregularity on the pencil point.
Claims8
In an electrical pencil sharpener having a housing, a front wall and a slidable shaving accumulation tray, a power source, a switch and a motor, a cutter holding element rotatable in one direction by said motor when said switch is actuated, cutter means operatively carried by said cutter holding element and arranged to be rotated in a direction opposite to the rotational direction of said cutter holding element, the combination comprising said front wall of said housing having an aperture therein, said aperture in axial alignment with an aperture in said cutter means, vertically movable means provided with an aperture to control insertion of a pencil into said cutter means, said vertically movable means disposed between said housing front wall and said cutter means, said vertically movable means being movable from an operative pencil receiving position when said respective apertures are in alignment into a pencil blocking position to prevent insertion of said pencil when said shaving accumulation tray is removed from said housing.
Dependencies are inferred from the claim text.