Invention Grant
US08413330B2 Longitudinally ground file having increased resistance to torsional and cyclic fatigue failure
有权
纵向地面文件具有增加的抵抗扭转和循环疲劳失效的能力
- Patent Title: Longitudinally ground file having increased resistance to torsional and cyclic fatigue failure
- Patent Title (中): 纵向地面文件具有增加的抵抗扭转和循环疲劳失效的能力
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Application No.: US12047369Application Date: 2008-03-13
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Publication No.: US08413330B2Publication Date: 2013-04-09
- Inventor: William B. Johnson
- Applicant: William B. Johnson
- Agency: Gable Gotwals
- Main IPC: B23P13/00
- IPC: B23P13/00
Abstract:
A method of producing an endodontic file that involves grinding in a plane substantially parallel to the longitudinal axis of a rotating dental instrument blank. By grinding the dental instrument blank in this manner, the torsional strength of the resulting endodontic file is not eroded during its production, thereby providing a file that is less susceptible to breakage during its use.
Public/Granted literature
- US20090229129A1 Longitudinally Ground File Having Increased Resistance to Torsional and Cyclic Fatigue Failure Public/Granted day:2009-09-17
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