Search International and National Patent Collections

1. (WO2009121952) METHOD FOR PROCESSING A BLANK WITH AN INDIVIDUAL ENLARGEMENT FACTOR AND BLANK THEREFOR

Pub. No.:    WO/2009/121952    International Application No.:    PCT/EP2009/053999
Publication Date: Oct 8, 2009 International Filing Date: Apr 3, 2009
IPC: A61C 13/00
Applicants: SIRONA DENTAL SYSTEMS GMBH
GLEDITZSCH, Siegfried
BASLER, Franz
FIGGE, David
Inventors: GLEDITZSCH, Siegfried
BASLER, Franz
FIGGE, David
Title: METHOD FOR PROCESSING A BLANK WITH AN INDIVIDUAL ENLARGEMENT FACTOR AND BLANK THEREFOR
Abstract:
In a method for processing a blank (1), wherein the blank (1) can be dense sintered with shrinkage after processing and wherein the processing of the blank (1) in a processing machine (7) is done in consideration of an individual enlargement factor (F) that is based on the blank (1) for smoothing of the shrinkage during dense sintering, a length measurement of the blank (1) is performed in one or more of the dimensions of length, width and height for determining the enlargement factor (F), wherein the measured length dimension (1) exists in a previously known relationship to the enlargement factor (F) and wherein the type of blank (1) is known. The length measurement of the blank (1) can be done in the processing machine (7).