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:
Jan. 16, 2018
Filed:
Nov. 02, 2014
Applicant:
Sirona Dental Systems Gmbh, Bensheim, DE;
Inventors:
Metin Ertugrul, Rodermark, DE;
Siegfried Goisser, Einhausen, DE;
Assignee:
DENTSPLY SIRONA INC., York, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C 1/05 (2006.01); A61C 1/18 (2006.01);
U.S. Cl.
CPC ...
A61C 1/052 (2013.01); A61C 1/057 (2013.01); A61C 1/186 (2013.01);
Abstract
A dental preparation instrument having a pneumatic turbine () with a rotor () for driving a tool (), wherein the rotor (), which is mounted in a turbine chamber () for rotation about an axis of rotation (), is impinged by compressed air from a compressed-air nozzle (). A first radial partition () has an opening () via which an annular space () is in flow connection with an outlet duct ().