Compressible/expandable keyboard with adjustable key spacing

Details Compressible/expandable keyboard with adjustable key spacing Compressible/expandable keyboard with adjustable key spacing

1991-07-09

1992-08-25

Crowder, Clifford D.

Typewriting machines

Key-board or key lever-actuating mechanism

400477, 400489, 400492, 235145R, 200 5R, B41J 508

Patent

active

051413434

ABSTRACT:
An extensible and compressible keyboard for application in computer, calculator, typewriter, and other similar applications where storage space is a premium. The keyboard provides adjustable spacing between the keys whereby a compact storage unit is expanded to a full-size, full function, and normally spaced standard keyboard or, as importantly, to a size which best fits the fingers of an individual user.

REFERENCES:
patent: 3499515 (1970-03-01), Mikrut
patent: 3940758 (1976-02-01), Margolin
patent: 4597681 (1986-07-01), Hodges
patent: 4661005 (1987-04-01), Lahr
patent: 4739451 (1988-04-01), Kuba
G. G. Pechanek & B. M. Streepey, "Briefcase-Portable Textwriter with 100-Key Full-Size Keyboard", Sep. 1984, vol. 27, No. 4A, IBM Technical Disclosure Bulletin, p. 2002.
DuPont Pyralux literature (Oct. 1985).

Affiliated with

Also associated with

Rating

Compressible/expandable keyboard with adjustable key spacing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compressible/expandable keyboard with adjustable key spacing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compressible/expandable keyboard with adjustable key spacing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-380813