Pencil sharpener

Details Pencil sharpener Pencil sharpener

1989-03-28

1990-04-24

Schmidt, Frederick R.

Cutlery

Static pencil sharpener

Plural, sequentially engaged cutters

30453, 144 281, 144 2871, B21D 3900

Patent

active

049188160

ABSTRACT:
The present invention relates to a pencil sharpener designed to be used in sharpening pencils having an elongated cross section such as, for example, elliptical or rectangular. The sharpener includes four cutters which are disposed in the casing thereof in facing pairs with one pair of blades being perpendicular to the other pair. Gearing is provided to allow all of the blades to rotate simultaneously and at the same speed.

REFERENCES:
patent: 673770 (1901-05-01), Fortunati
patent: 1160091 (1915-11-01), Steward
patent: 3965949 (1976-06-01), Aston et al.

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