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:
Oct. 23, 1984
Filed:
Feb. 01, 1982
Applicant:
Inventor:
Henri Leonard, Besancon, FR;
Assignee:
Micro-Mega S.A., Besancon, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433165 ; 408226 ;
Abstract
This dental canal rotary instrument comprises a handle having a hollow metal sleeve surrounding concentrically the inoperative end of the instrument shank; a suitable plastic material is cast into a mold so as to fill the gap left between the sleeve and the shank to form a plastic core embedding the shank, the latter protruding from at least one of the sleeve ends; a notch is formed in the sleeve for anchoring the sleeve and the plastic core, and a flat face is provided on the embedded shank end, in order to improve the adherence of the sleeve, core and shank to one another.