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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 11110540 B1

PDFFull Text
Date of Patent:
Sep. 07, 2021

Filed:

May. 01, 2017

Extruder for metal material and 3d printer using the same

Applicants:

Electronics and Telecommunications Research Institute, Daejeon, KR;

Daelim Chemical Co., Ltd., Gyeongsangnam-do, KR;

Inventors:

Yong Suk Yang, Daejeon, KR;

hong hyun Shin, Seoul, KR;

Bonjin Koo, Daejeon, KR;

In-Kyu You, Gongju-si, KR;

sunghoon Hong, Daejeon, KR;

Assignees:

Electronics and Telecommunications Research Institute, Daejeon, KR;

Daelim Chemical Co., Ltd., Gyeongsangnam-do, KR;

Attorney:

Rabin & Berdo, P.C.

Primary Examiner:

Adam J Eiseman

Assistant Examiner:

Mohammed S Alawadi

Int. Cl.
CPC ...
B23K 13/01 (2006.01); B22F 10/10 (2021.01); B29C 64/209 (2017.01); B29C 48/15 (2019.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B23K 37/06 (2006.01); B28B 1/00 (2006.01); H05B 6/14 (2006.01); H05B 6/44 (2006.01); B33Y 50/02 (2015.01); B22F 3/115 (2006.01); B29C 48/00 (2019.01); B33Y 70/00 (2020.01);
U.S. Cl.
CPC ...
B23K 13/01 (2013.01); B22F 10/10 (2021.01); B23K 37/06 (2013.01); B28B 1/001 (2013.01); B29C 48/00 (2019.02); B29C 48/15 (2019.02); B29C 64/209 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 70/00 (2014.12); H05B 6/14 (2013.01); H05B 6/44 (2013.01); B22F 2999/00 (2013.01);
Abstract

An extruder for a metal material includes a cylinder having a receiving space in which a solid metal material is provided, a nozzle extending from a lower end of the cylinder, an upper coil provided on an outer surface of the cylinder and melting the solid metal material to form a liquid metal material, and a first lower coil provided on an outer surface of the nozzle to control an extruded shape of the liquid metal material.

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