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:
Feb. 25, 1992
Filed:
Jun. 21, 1990
Applicant:
Inventor:
Peter Malata, Jr, Burmoos, AT;
Assignee:
Dentalwerk Burmoos Gesellschaft m.b.H, Burmoos, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ; A61C / ;
U.S. Cl.
CPC ...
433102 ; 433128 ;
Abstract
An endodontic filing tool which can be chucked into a dental tool holder with slight play but secured against rotating movement as well as against axial movement by chucking balls. A circumferential groove is provided at the rearward end of the tool shaft, wherein the circumferential groove is interrupted at at least one location, so that a stop for the chucking ball is formed.