Pencil sharpener

Details Pencil sharpener Pencil sharpener

1986-09-17

1988-07-05

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Combined

1510553, 30460, 30461, 144 2811, 401 50, B43K 2906, B43K 2902

Patent

active

047550740

ABSTRACT:
The disclosure is directed to a pencil sharpener device in which the sharpening element is slidably mounted within a support member for movement between a retracted position when not in use to a protracted position for use in sharpening the pencil. When in use, the sharpening element is movable to its protracted position to permit pencil shavings to fall free out of the support member during the sharpening operation. The disclosure further provides an eraser element or a combined eraser/marker assembly to be removably associated with the device.

REFERENCES:
patent: 179641 (1876-07-01), Batchelder
patent: 245250 (1881-08-01), Williams
patent: 441384 (1890-11-01), Trego
patent: 454623 (1891-06-01), Baumgarten
patent: 521016 (1894-06-01), Chambers
patent: 562303 (1896-06-01), Kaiser
patent: 749011 (1904-01-01), Adams
patent: 895019 (1908-08-01), Hopkins
patent: 895188 (1908-08-01), Mueller
patent: 969323 (1910-09-01), Anderson
patent: 1822994 (1931-09-01), Markowitz
patent: 2624316 (1953-01-01), Blanco et al.

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