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:
Mar. 11, 1986
Filed:
May. 14, 1984
Applicant:
Inventors:
Syng N Kim, Hoffman Estates, US;
Max Wiczer, Skokie, both of IL, US;
Assignee:
Wico Corporation, Niles, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ; G05G / ;
U.S. Cl.
CPC ...
2731 / ; 7447 / ;
Abstract
The trackball device comprises cylindrical first and second supports. First and second code wheels are respectively coupled to the supports and are rotatable therewith. First and second reader means are respectively associated with the first and second code wheels for generating control signals. A ball is seated on the supports. The second support, both of the reader means, the second code wheel and the ball all lie on the same side of the first support.