One-hand prehensile keyboard
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 19, 1996
Grant Date -
N/A
app pub date -
Aug 26, 1993
filing date -
Aug 26, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A one hand, QWERTY keyboard angles the rows of keys away from the top and bottom parallel axes of the keyboard so as to eliminate ulnar-deviation of the actuating hand. This permits the orientation of the device to be parallel to the frontal plane of the body. Further, by positioning one or more keys on a front vertical surface of the keyboard, the thumb can actuate these keys in a natural-grasping, prehensile movement towards the fingers. The keyboard operates in two basic function modes. In a first mode, textual letters and symbols are input and in a second mode, numbers or symbols as for mathematical or scientific calculation are input. Once the user has turned on the device, the user can either press the 'L' portion of a switch for letter usage or the 'N' portion of the switch for number usage.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully