Bifurcated keyboard arrangement

Details Bifurcated keyboard arrangement Bifurcated keyboard arrangement

1991-09-05

1993-07-20

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

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

400486, 400 82, B41J 510

Patent

active

052287912

ABSTRACT:
A keyboard arrangement in which a conventional keyboard is divided into two sections, each of which is separately supported on a joint which is freely rotatable and pivotable. The joint in turn may have a supporting base adapted to rest on or to be clamped to a table top or other support surface. Alternatively, the joints supporting the respective keyboard sections may be mounted on a supporting based member, which may have an adjustable width so that the separation between the two keyboard sections can be varied.

REFERENCES:
patent: 4473206 (1984-09-01), Stillinger
patent: 4509873 (1985-04-01), Ryan
patent: 4597681 (1986-07-01), Hodges
patent: 4645153 (1987-02-01), Granzow et al.
patent: 4661005 (1987-04-01), Lahr
patent: 5037050 (1991-08-01), Lin et al.
patent: 5044798 (1991-09-01), Roylance et al.
patent: 5067834 (1991-11-01), Szmanda et al.
patent: 5068961 (1978-01-01), Ebner et al.
patent: 5073050 (1991-12-01), Andrews
patent: 5122786 (1992-06-01), Rader

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