Self sharpening pencils

Details Self sharpening pencils Self sharpening pencils

1980-08-11

1982-06-15

Pieprz, William

Coating implements with material supply

Solid material for rubbing contact or support therefor

With means for severing portion of sheath or for shaping tool

401 52, B43K 2906

Patent

active

043347940

ABSTRACT:
The disclosure involves a self-sharpening pencil comprising a hollow housing having an integral self-contained non-rotatable fixed sharpener therein for a lead adapted to be linearly projected therethrough for filing the said lead by manually reciprocable lead carrier means.
The lead is adapted to be linearly guided by means located within the housing and a reservoir or collection chamber is provided for filings within said housing.

REFERENCES:
patent: 1482300 (1924-01-01), Hansen
patent: 1776098 (1930-09-01), Barbas
patent: 2065800 (1936-12-01), Freeman
patent: 2512208 (1950-06-01), Kuper
patent: 2532384 (1950-12-01), Worden
patent: 2680426 (1954-06-01), Kobut
patent: 2997983 (1961-08-01), Nock
patent: 3768915 (1973-10-01), Spatz
patent: 3836265 (1974-09-01), Kapilow
patent: 3967905 (1976-07-01), Hsieh

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