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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.:

US 11931767 B1

PDFFull Text
Date of Patent:
Mar. 19, 2024

Filed:

Apr. 18, 2018

Metering build material in three-dimensional (3d) printing using a tool

Applicant:

Desktop Metal, Inc., Burlington, MA (US);

Inventors:

Emanuel M. Sachs, Newton, MA (US);

Midnight Zero, Wilmington, MA (US);

Assignee:

Desktop Metal, Inc., Burlington, MA (US);

Attorneys:

Oak Law, PLLC

Jonathan D. Hall

Primary Examiner:

Christopher S Kessler

Int. Cl.
CPC ...
B22F 12/52 (2021.01); B05C 19/04 (2006.01); B22F 3/00 (2021.01); B22F 10/14 (2021.01); B22F 12/00 (2021.01); B22F 12/17 (2021.01); B22F 12/57 (2021.01); B22F 12/63 (2021.01); B28B 1/00 (2006.01); B29C 41/00 (2006.01); B29C 41/12 (2006.01); B29C 41/36 (2006.01); B29C 64/165 (2017.01); B29C 64/343 (2017.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B29C 64/205 (2017.01); B33Y 10/00 (2015.01);
U.S. Cl.
CPC ...
B05C 19/04 (2013.01); B22F 3/004 (2013.01); B22F 10/14 (2021.01); B22F 12/17 (2021.01); B22F 12/222 (2021.01); B22F 12/52 (2021.01); B22F 12/57 (2021.01); B22F 12/63 (2021.01); B28B 1/001 (2013.01); B29C 41/006 (2013.01); B29C 41/12 (2013.01); B29C 41/36 (2013.01); B29C 64/165 (2017.08); B29C 64/343 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B22F 2998/10 (2013.01); B29C 64/205 (2017.08); B33Y 10/00 (2014.12);
Abstract

A metering apparatus and corresponding method meter a powder material in a three-dimensional (3D) printing system. The metering apparatus comprises a hopper with walls configured to contain a powder material, a metering roller, and a tool. The metering roller is located beneath an opening of the hopper. The metering roller and a given wall of the walls of the hopper are spaced apart by a gap therebetween at the opening; the gap in combination with rotation of the metering roller causes the powder material to flow from under the given wall of the hopper at a substantially predictable rate. The tool is positioned at the given wall where the flow emerges and is configured to force the powder material off of the metering roller to supply the 3D printing system with the powder material for printing a 3D object.

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