Device for pointwise action on an information carrying medium

Details Device for pointwise action on an information carrying medium Device for pointwise action on an information carrying medium

1977-10-11

1980-05-13

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9302, B41J 310

Patent

active

042026385

ABSTRACT:
A device for marking an information carrying medium has an arm with a pointed tip adapted to engage the medium. The arm is spring biased for movement in one direction, and a solenoid structure is provided for moving the arm in the other direction. A land surface cooperates with the arm to form an air pressure damping arrangement to damp movements of the arm in a direction away from the information carrying medium.

REFERENCES:
patent: 3148313 (1964-09-01), Hancock
patent: 3333667 (1967-08-01), Nordin
patent: 3836880 (1974-09-01), Matschke et al.
patent: 3896918 (1975-07-01), Schneider
patent: 3968867 (1976-07-01), Stenudd
patent: 4049107 (1977-09-01), Murat
patent: 4049108 (1977-09-01), Giessner

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