Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1993-10-15
1994-11-29
Eickholt, Eugene H.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400127, 400130, 137885, 101 31, 101 28, B41J 302
Patent
active
053684001
ABSTRACT:
Marking apparatus for moving a marking head to coordinate positions utilizing two fixed stepper motors performing in conjunction with a cable and pulley drive system. The dynamics of pneumatically driven marrker pins within marker heads are accommodated for by a topology which includes a marker support base which, in turn, is supported in force transfer relationship with an air bearing which rides over a fiat platen surface. Improved marker head structure is developed utilizing a polyetherimide material and a design providing the introduction of return air into a two-component piston chamber at a location above a seating surface.
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Cyphert David L.
Sieling Roger L.
Eickholt Eugene H.
Telesis Marking Systems, Inc.
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