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.

Date of Patent:
Mar. 14, 2006

Filed:

May. 30, 2002
Applicant:

Wei-chuan Wang, Tu-Cheng, TW;

Inventor:

Wei-Chuan Wang, Tu-Cheng, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A Z-axis device for an input device has a rotatable roller having a first side and a second side, the second side of the roller having a plurality of grooves. The Z-axis device also has a support mechanism that positions the roller for reciprocating pivoting movement, a first axle extending from the first side of the roller and supported by the support mechanism, and a second axle extending from the second side of the roller and supported by the support mechanism. The second axle has a resilient element coupled thereto, with the resilient element constantly engaging one of the grooves, and engaging different grooves as the roller is rotated.


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