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:
Aug. 13, 2013
Filed:
Dec. 23, 2002
Olaf Althoff, Wessling, DE;
Daniel Suttor, Seefeld, DE;
Stefan Hoescheler, Herrsching, DE;
Martin Beuschel, Munich, DE;
Olaf Althoff, Wessling, DE;
Daniel Suttor, Seefeld, DE;
Stefan Hoescheler, Herrsching, DE;
Martin Beuschel, Munich, DE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The invention relates to a device for the automated production of dental workpieces. A blank is inserted in a substantially slab-shaped support of the device, said support being dimensioned such that the blank does not extend beyond it in any direction. The blank is linked with corresponding inner walls of a recess provided in the support only on two opposite faces while a gap is left between the other inner walls of the recess and the corresponding faces of the blank. The inventive design allows to avoid tensions and microcracks of the blank material thereby caused. The gaps further make the blank directly accessible for a lateral working by the milling tool.