Patent · US Active

Method for machining a blank having an individual scale-up factor and blank therefor

US8401690B2 · kind B2 · utility

9Cited by

28References

12Claims

0Family size

Assignee

SIRONA Dental Systems GmbH · DE

Inventors

Siegfried Gleditzsch · Heppenheim, DE
Franz Basler · Hemsbach, DE
David Figge · Bensheim, DE

Key dates

Filing date	Oct 1, 2010
Grant date	Mar 19, 2013
Priority date	—
Expiry date	May 4, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49764
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

In a method for processing a blank (1), in which the blank (1) can be densely sintered with shrinkage following machining and machining of the blank (1) is carried out in a machining device (7) allowing for an individual scale-up factor (F) relevant to the blank (1) for compensating for the shrinkage occurring during dense sintering, a linear measurement of the blank (1) is performed in one or more of the dimensions length, width, and height for determining the scale-up factor (F), wherein the measured linear measure (1) bears a known relationship to the scale-up factor (F), the type of blank (1) being known. Linear measurement of the blank (1) can be carried out in the machining device (7).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.