Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1978-10-13
1980-10-07
Sewell, Paul T.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
101 9305, B41J 310
Patent
active
042265452
ABSTRACT:
An electromagnetic drive for a recording pin of a matrix printer, comprising a cylindrical armature which is displaceable by means of an excitation coil and in which a clamping sleeve is provided which comprises an indentation which encloses the recording pin in a clamping manner and whose length governs the position of the recording pin.
REFERENCES:
patent: 4044878 (1977-08-01), Kunath
patent: 4051940 (1977-10-01), Kuelzer
Brandenburg Klaus
Richter Hermann
Weber Wendelin
Sewell Paul T.
Smith Robert S.
U.S. Philips Corporation
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