One-handed keyboard

Details One-handed keyboard One-handed keyboard

1987-12-21

1989-07-11

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

400255, 400485, B41J 510, B41J 528

Patent

active

048465984

ABSTRACT:
A one-handed keyboard is disclosed which includes a stationary base and a rocking keyboard which is mounted for rocking movement between a normal level position and right and left depressed positions. A selector key is mounted on the rocking keyboard for rocking therewith and also being pivotally mounted for movement between a normal upper or raised position and a lower postion to which it moves when the user rests the palm of his hand on it. A cluster of keys is provided, each of which is multi-function representing a plurality of alpha-numeric characters and/or symbols that can be typed or entered by selective actuation of the character keys, rocking keyboard, selector key and a shift key by movements of one hand and movements of the fingers thereof.

REFERENCES:
patent: 2532228 (1950-11-01), Hesh
patent: 4067431 (1978-01-01), Whitaker
patent: 4201489 (1980-05-01), Zapp
patent: 4516939 (1985-05-01), Crimmins, Jr.
IBM Technical Disclosure Bulletin, "Keyboard for Handheld Computer", vol. 27, No. 10A (Mar. 1985), pp. 5643-5645.
McCornack, W. C., "Single Keybutton Four--Way Switch", IBM Technical Disclosure Bulletin, vol. 21, No. 8 (Jan. 1979), p. 3261.
Bequaert, F. C., "Portable High Speed Keyboard", IBM Technical Discloure Bulletin, vol. 23, No. 7A (Dec. 1980), p. 3016.
"Changeable Key Pad Overlay and Key Pad Panel", IBM Technical Disclosure Bulletin, vol. 29, No. 5 (Oct. 1986), p. 2199.

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