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:
Oct. 29, 1991
Filed:
Nov. 21, 1990
Applicant:
Inventor:
Alexander M Purcell, Wallingford, CT (US);
Assignee:
Summagraphics Corporation, Seymour, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
178 18 ; 178 19 ;
Abstract
A digitizer stylus with Z-axis side pressure control, comprising a nib front end resiliently mounted on the stylus housing and cooperating with a Hall-effect transducer such that side pressure on the nib, used like a calligraphic pen or brush, modifies the Hall-effect output, which can be used to modify an additional parameter, such as line width, of a drawing.