Key actuator

Details Key actuator Key actuator

1977-07-22

1979-02-06

Pieprz, William

Typewriting machines

Key-board or key lever-actuating mechanism

Including mechanism for activating keys

400 70, 235146, 200178, 335112, 178 17C, 234115, B41J 508

Patent

active

041381971

ABSTRACT:
Actuator for use with a push-button keyboard in which the keys are arranged in an array of intersecting rows and columns. A single solenoid is provided for each row and column, and means operated by the solenoids causes the key to be depressed at the intersection of a row or column for which the solenoids are energized.

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patent: 3713054 (1973-01-01), Elliot
patent: 3856127 (1974-12-01), Halfon
patent: 3863044 (1975-01-01), McCormick

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