The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2013
Filed:
Jun. 29, 2010
Michael Schumacher, Hilliard, OH (US);
Ben Dunlap, Statesville, NC (US);
Theo Muir, Columbus, OH (US);
Michael Schumacher, Hilliard, OH (US);
Ben Dunlap, Statesville, NC (US);
Theo Muir, Columbus, OH (US);
Elmer's Products, Inc., Westerville, OH (US);
Abstract
An electric pencil sharpener comprising a motor; a cutter assembly operatively connected to the motor, wherein the cutter assembly further includes: a conical housing defining a conical cavity therein for receiving a pencil; and at least one rotary blade mounted in close proximity to the conical cavity, wherein the at least one rotary blade further includes spiral cutting edges for sharpening the pencil; a switch assembly positioned at the narrow end of the conical housing, wherein the switch assembly further includes: a shutoff switch operative to deactivate the motor; mechanical means for actuating the shutoff switch when a desired degree of sharpening has been achieved by the cutter assembly; and an electronic control unit in electrical communication with the switch assembly and the motor, wherein the electronic control unit is operative to provide a delay of a predetermined period of time between when the shutoff switch is activated and when the motor is deactivated.