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:
Jul. 29, 2025
Filed:
Sep. 21, 2020
Dentsply Sirona Inc., York, PA (US);
Sirona Dental Systems Gmbh, Bensheim, DE;
Peter Burger, Bensheim, DE;
Oliver Nowarra, Leimen, DE;
Dentsply Sirona Inc., York, PA (US);
Abstract
A computer-implemented method of planning of the shapes of free-form tool paths (P) for simultaneous two-sided machining of a dental restoration () having an individual free-form target geometry from a workpiece () by using a dental tool machine () having at least two tool spindles each having at least one tool () arranged on a different side of the workpiece () which is simultaneously movable along an axis (y) relative to the tools () thereby imposing a kinematic axis coupling. The method includes a step of determining transformations (T', T″) of the target geometry by which the kinematic axis coupling is converted into a common coupling parameter for both tools (); and a step of generating dependent on these transformations (T′, T″) the shapes of the free-form tool paths (P) in which the common coupling parameter is identical in time for all participating tool spindles that are driven simultaneously.