Electric pencil sharpener

Details Electric pencil sharpener Electric pencil sharpener

2007-06-29

2010-06-01

Self, Shelley (Department: 3725)

Woodworking

Special-work machine

Pencil sharpening

C144S028700

Reexamination Certificate

active

07726365

ABSTRACT:
An electric pencil sharpener includes a motor, a transmission subassembly and a cutter subassembly driven by the motor, a feeding subassembly and at least one resilient adjusting means. The feeding subassembly includes a feeding gear set coupled to the transmission subassembly and two feeding rollers adapted to sandwich a pencil to be sharpened, at least one feeding roller is driven by the feeding gear set. The pair of brackets is arranged in parallel, respectively defining slide ways to movablely support the feeding rollers. A feeding space is defined between the two brackets. The at least one resilient adjusting means connects the two feeding rollers outside or inside the feeding space, adapted for keeping the feeding rollers nipping the pencil and engendering a pencil feeding friction.

REFERENCES:
patent: 3746061 (1973-07-01), Nakazaki
patent: 4966208 (1990-10-01), Uang
patent: 6886614 (2005-05-01), Ricono et al.

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