The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 1988
Filed:
Aug. 20, 1987
Cornelis Langewis, Walnut Creek, CA (US);
Christiaan Langewis, Hayward, CA (US);
Interlock, Hayward, CA (US);
Abstract
Arrow keys on the keyboard of a desktop computer, computer terminal or displaywriter which control the movement of a cursor are actuated by a manually operated mechanical device resting over the keyboard. The device entails a central control shaft and a plurality of fingers extending outward radially from the shaft toward each of the arrow keys, and preferably toward adjacent keys as well. The control shaft and fingers are pivotally mounted and arranged such that when the control shaft is pivoted in the direction of desired motion of the cursor, the appropriate finger is engaged by the control shaft and pivots downward to depress the corresponding key.