Coating implements with material supply – Solid material for rubbing contact or support therefor – Including means to advance material
Patent
1991-08-26
1992-11-24
Bratlie, Steven A.
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including means to advance material
401 54, 401 94, B43K 2100, B43K 2122
Patent
active
051658127
ABSTRACT:
A refill lead writing instrument for stepped advancement of a lead has a spring biased clamping device for holding a lead in direction of its longitudinal axis against a writing pressure. The clamping device includes a clamping chuck supported in a clamping sleeve under a spring action and a longitudinally displaceable lead pipe against which the clamping chuck can abut. A gripping part is form-lockingly connected with a shaft so that the shaft and the gripping part are rotatable relative to one another about a common longitudinal axis. The shaft and the gripping part have opening of same diameters and provided with grooves. A longitudinally displaceable supporting pipe has strips guiding in the grooves, one of the grooves having an extension extending in direction of the writing pipe and formed as a recess in which one of the strips is turnable.
REFERENCES:
patent: 1780405 (1930-11-01), Sharrow
patent: 2055316 (1936-09-01), Sharrow
patent: 2162914 (1939-06-01), Feather
patent: 3713745 (1973-01-01), Horie
patent: 3947133 (1976-03-01), Kageyama et al.
patent: 4171170 (1979-10-01), Kageyama et al.
patent: 4269524 (1981-05-01), Hashimoto et al.
patent: 4884911 (1989-12-01), Oikawa
A. W. Faber-Castell GmbH & Co.
Bratlie Steven A.
Striker Michael J.
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