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.

Date of Patent:
Feb. 15, 2022

Filed:

Jan. 23, 2017
Applicant:

Arcam Ab, Moelndal, SE;

Inventor:

Ulf Ackelid, Goeteborg, SE;

Assignee:

Arcam AB, Moelndal, SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 12/67 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/153 (2017.01); B22F 12/00 (2021.01); B29C 64/343 (2017.01); B29C 64/188 (2017.01); B29C 64/165 (2017.01); B22F 10/10 (2021.01);
U.S. Cl.
CPC ...
B22F 12/67 (2021.01); B22F 12/00 (2021.01); B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B22F 10/10 (2021.01); B29C 64/165 (2017.08); B29C 64/188 (2017.08); B29C 64/343 (2017.08); Y02P 10/25 (2015.11);
Abstract

An apparatus for forming at least one three-dimensional article through successive fusion of parts of a powder bed. The apparatus comprises a powder distributor configured for evenly distributing a layer of powder on top of a build table; an energy beam configured for fusing the powder layer in selected locations corresponding to the cross section of the three-dimensional article, the powder distributor comprises an elongated rod provided movable at a predetermined distance above the powder table and with its central axis in parallel with a top surface of the powder table, and a flexible foil attached onto the elongated rod and protruding from the rod towards the powder table; and an elongated device parallel with the powder distributor and arranged onto or over the powder table outside the build table, where the elongated device is arranged for mechanically touching the flexible foil.


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