Mechanical pencil

Details Mechanical pencil Mechanical pencil

1990-04-11

1991-09-03

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 83, 401 86, 401 87, 401 93, B43K 2106, B43K 2122, B43K 2404

Patent

active

050448056

ABSTRACT:
A mechanical pencil made of a molded plastics material has a flat rectangular cross-section and a slot at one end thereof for passing a flat lead piece. The housing has a front wall provided with a recess and a slot extending longitudinally of the housing in the recess. A pair of toothed racks are provided longitudinally of the housing in the chamber formed therein. A gripper including a thumb-operated slider is provided on the front wall which is bowed and urged against the front wall and is connected to a toothed anchor in the chamber which in turn is adapted to engage the rack members. A pair of bifurcated fingers are connected to the anchor member and the bifurcated fingers engage the lead piece. Cam guide means provide the gripping action of the bifurcated fingers and the releasing action thereof. The gripper is advanced and retracted by depressing the bowed slider to disengage the toothed anchor from the rack member.

REFERENCES:
patent: Re25514 (1964-01-01), Anderton
patent: D172867 (1976-02-01), Cleveland
patent: D238357 (1976-01-01), Di Carlo
patent: D268501 (1983-04-01), Kruckel et al.
patent: D276479 (1984-11-01), Mori
patent: D282378 (1986-01-01), Ohyabu et al.
patent: 1063189 (1913-06-01), Dutton
patent: 1757884 (1930-05-01), Tuggle
patent: 1766271 (1930-06-01), Turner
patent: 2043250 (1936-06-01), Kasdan et al.
patent: 2174979 (1939-10-01), Hauton
patent: 2259133 (1941-10-01), Harper
patent: 2287384 (1942-06-01), Martines
patent: 2302203 (1942-11-01), Frink
patent: 2314777 (1943-03-01), Farrington
patent: 2484555 (1949-10-01), Comstock
patent: 2495342 (1950-01-01), Moore
patent: 2501612 (1950-03-01), Nielsen
patent: 2595001 (1952-04-01), Sams et al.
patent: 2604070 (1952-07-01), Sharrow
patent: 2839030 (1958-06-01), Zang
patent: 3037483 (1962-06-01), Caviglione
patent: 3265201 (1966-08-01), Edwards
patent: 3756727 (1973-09-01), Gallagher
patent: 3854824 (1974-12-01), Kamo
patent: 3947133 (1976-03-01), Kageyama et al.
patent: 4352579 (1982-10-01), Yi

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