Keyboard

Details Keyboard Keyboard

1992-05-26

1993-03-30

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board including keys grouped to facilitate positioning...

400100, 400485, B41J 508

Patent

active

051978113

ABSTRACT:
A keyboard operable by one hand includes a first group of four elongated finger keys extending vertically in parallel spaced relation so as to be accessible by the four fingers of a user's hand, and a second group of thumb keys extending laterally of the first group and spaced vertically with respect to each other so as to be accessible by the user's thumb. The keyboard may include a first section operable by one hand and having the above two groups of keys for selecting alphabetical characters, and a second section operable by the second hand having further keys for selecting numerical characters, punctuation and operational controls.

REFERENCES:
patent: 4211497 (1980-07-01), Montgomery
patent: 4655621 (1987-04-01), Holden
patent: 4846598 (1989-07-01), Livits
patent: 4911565 (1990-03-01), Ryan
patent: 5006001 (1991-04-01), Vulcano
patent: 5059048 (1991-10-01), Sirkin
patent: 5122786 (1992-06-01), Rader
IBM Tech. Disclosure Bulletin, "Easy-to-Learn Programmable Keyboard" vol. 24 No. 5 Oct. 1981 p. 2465.

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