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. 19, 1985
Filed:
Jun. 01, 1982
Applicant:
Inventor:
Max Wiczer, Skokie, IL (US);
Assignee:
Wico Corporation, Niles, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05G / ; G05G / ; F16H / ;
U.S. Cl.
CPC ...
7447 / ; 74209 ; 384245 ; 384244 ; 384246 ;
Abstract
The trackball device includes two supports for the trackball, each of which has a code wheel associated therewith. The journals on the end of each shaft and the bearing surfaces of the pillow block associated with the shaft are constructed to have substantially point contact and thereby minimize friction.