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:
Mar. 16, 2021

Filed:

Jul. 30, 2018
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Koichi Saito, Matsumoto, JP;

Kohei Yuwaki, Shiojiri, JP;

Kazuhide Nakamura, Asahi, JP;

Shunsuke Mizukami, Hokuto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/393 (2017.01); B29C 64/106 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/209 (2017.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 64/393 (2017.08); B29C 64/106 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract

A three-dimensional modeling apparatus includes a nozzle that ejects a molten material, which is a plasticized thermoplastic material, a plasticization section which includes a flat screw having a groove extending in a volute shape and a driving motor that rotates the flat screw, the plasticization section rotating the flat screw to thereby guide the molten material to the nozzle through the groove, and an ejection control mechanism that is disposed in a flow path between the flat screw and the nozzle, and controls an outflow of the molten material from the nozzle.


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