Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1987-05-14
1989-02-21
Brigance, Gerald L.
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
340712, 200 5R, G06F 300
Patent
active
048069086
ABSTRACT:
A plurality of keys are mounted in parallel columns on a key supporting panel for reciprocation between upper, inactive positions and lower, active positions. Each key comprises a translucent core having a legend on its upper end, a conductor on its lower end, and an opening therethrough intermediate its ends. Each core is mounted for reciprocation at its lower end in a plastic sleeve, which is removably mounted by a flexible detent in one of the openings in the panel, and is surrounded adjacent its upper end by a flexible sleeve or hood which resiliently urges the key core to its upper position. In each column of key cores the openings in the latter register with each other, and an elongate electroluminescent strip extends through the registering openings and beneath the panel to prevent accidental withdrawal of the keys, and to illuminate the legends on a column of keys when energized.
REFERENCES:
patent: 3767022 (1973-10-01), Olson
patent: 3856127 (1974-12-01), Halfon et al.
patent: 4379968 (1983-04-01), Ely et al.
patent: 4480184 (1984-10-01), Ely
patent: 4551717 (1985-11-01), Dreher
patent: 4617461 (1986-10-01), Subbaras et al.
patent: 4712092 (1987-12-01), Boldridge, Jr. et al.
M. M. Astrahan-"EL-PC Keyboard"-IBM Technical Disclosure Bulletin-vol. 3, No. 3 Aug. 1960-pp. 65-66.
Astronics Corporation
Brigance Gerald L.
Fatahi-Yar Mahmoud
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