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.

Date of Patent:
Jul. 15, 2025

Filed:

Nov. 14, 2019
Applicant:

Dentsply Sirona Inc., York, PA (US);

Inventors:

Philipp Grimm, Ludwigshafen am Rhein, DE;

Oliver Nowarra, Leimen, DE;

Assignee:

Dentsply Sirona Inc., York, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 13/00 (2006.01); B23C 3/00 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0006 (2013.01); A61C 13/0022 (2013.01); B23C 2220/04 (2013.01); Y10T 409/303808 (2015.01);
Abstract

In the method for producing medical, in particular dental fitting bodies with a specified or custom three-dimensionally curved outer contour or preform of the fitting body with a rough outer contour, which has an allowance relative to the outer contour, a workpiece from which the fitting body or its preform is produced, is machined in a material-removing manner by means of a tool engaging in the workpiece The tool path has directional components transverse to the run of the contour to be produced and the cutting edges have a defined geometry. The tool engages into the workpiece at a cutting arc angle alpha of the circumferential surface of less than 90° on average and at an insertion depth of at least twice the tool diameter (D) and the machining of the workpiece occurs along a tool path with directional components contrary to a machining direction following the outer contour.


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