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:
Aug. 22, 2006

Filed:

Apr. 25, 2005
Applicants:

Sheng-jui Chao, Taichung, TW;

Tsu-meng Lee, Taichung, TW;

Inventors:

Sheng-Jui Chao, Taichung, TW;

Tsu-Meng Lee, Taichung, TW;

Assignee:

Asia Optical Co., Inc., Taichung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F 21/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gear-forming cutter for forming a gear tooth on a non-metallic blank includes a spindle and a blade portion. The blade portion extends from the spindle along an axis of the spindle, and includes a blade surface and a surrounding surface. The blade surface has front and rear sides, and opposite first and second lateral sides. The surrounding surface is disposed around the axis, and extends from the first lateral side to the second lateral side. Any point of the first lateral side is spaced apart from the axis by a first radial distance. Any point of the second lateral side is spaced apart from the axis by a second radial distance smaller than the corresponding first radial distance. The first radial distance corresponding to the rear side is larger than that corresponding to the front side.


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