Patent · US Active

Additive manufacturing system and a method of additive manufacturing

US11577453B2 · kind B2 · utility

0Cited by

2References

5Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Malte Korten · Moorenweis, DE
Helmar B. Mayr · Kaufering, DE
Gioacchino Raia · Türkenfeld, DE
Bernhard Hofmann · Peißenberg, DE
Adrian S. Eckert · Herrsching am Ammersee, DE

Key dates

Filing date	Jan 26, 2021
Grant date	Feb 14, 2023
Priority date	—
Expiry date	May 13, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y50/02
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An additive manufacturing system has a light permeable base, a build carrier for holding a workpiece and a light source which is arranged to emit light through the light permeable base. The light permeable base and the build carrier are positionable relative to each other in a build dimension in which the workpiece is built up. The system further has a resin vat in which the light permeable base forms a wall portion thereof. The system further comprises a plurality of resin supplies for supplying different light hardenable resins in direct contact with each other in said vat. The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

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