Actuating holder for combined electric eraser-pencil sharpeners

Details Actuating holder for combined electric eraser-pencil sharpeners Actuating holder for combined electric eraser-pencil sharpeners

1981-03-05

1984-02-14

Bray, W. D.

Woodworking

Special-work machine

Pencil sharpening

248314, 200 6159, B43L 2302

Patent

active

044310382

ABSTRACT:
A holder for a combined electric eraser-pencil sharpener which causes the sharpener to be actuated upon insertion of the pencil. A using draftsperson thus obtains the benefits of a separate fixed sharpener and avoids picking up and using the hand-held combined eraser-sharpener. The holding device comprises an open-ended cup structure containing a supporting spring. As the electric eraser-pencil sharpener being supported is moved under pencil insertion forces, switch actuation means activate the sharpener by depressing the motor switch.

REFERENCES:
patent: 2729080 (1956-01-01), Bennett
patent: 2767686 (1956-10-01), Goumaz
patent: 3090358 (1963-05-01), Condon
patent: 3179255 (1965-04-01), DeCaccia
patent: 3267254 (1966-08-01), Weller et al.
patent: 3273846 (1966-09-01), DeMare
patent: 3467843 (1969-09-01), Dailey
patent: 3595285 (1971-07-01), Ruben
patent: 3776286 (1973-12-01), Blanck
patent: 4050487 (1977-09-01), Mabuchi et al.

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