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:
Sep. 24, 2013
Filed:
Dec. 20, 2010
Applicants:
Chow-shing Shin, Taipei, TW;
Zheng-cheng Lin, Taipei, TW;
Chun-pin Lin, Taipei, TW;
Inventors:
Assignee:
National Taiwan University, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q 17/09 (2006.01); G01M 13/00 (2006.01); A61C 5/02 (2006.01);
U.S. Cl.
CPC ...
G01M 13/00 (2013.01); A61C 5/023 (2013.01);
Abstract
A system for evaluating cutting efficiency of root canal rotary instruments is provided. The system includes a root canal rotary instrument, a driving unit, a cutting object, a prestressing force providing unit and a feeding unit. The root canal rotary instrument is attached on the driving unit, and driven thereby. The cutting object is pressed by the prestressing force providing unit to contact the root canal rotary instrument. The feeding unit feeds the cutting object to the root canal rotary instrument, and the root canal rotary instrument cuts an uncut surface of the cutting object.