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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 12064920 B1

PDFFull Text
Date of Patent:
Aug. 20, 2024

Filed:

Dec. 12, 2022

Material feeding device, three-dimensional shaping device, and injection molding device

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Masaaki Ogihara, Matsumoto, JP;

Taki Hashimoto, Shiojiri, JP;

Assignee:

SEIKO EPSON CORPORATION, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Seyed Masoud Malekzadeh

Int. Cl.
CPC ...
B29C 64/321 (2017.01); B29C 45/18 (2006.01); B29C 45/46 (2006.01); B29C 45/77 (2006.01); B29C 45/78 (2006.01); B29C 64/209 (2017.01); B29C 64/386 (2017.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 64/321 (2017.08); B29C 45/18 (2013.01); B29C 45/464 (2013.01); B29C 45/77 (2013.01); B29C 45/78 (2013.01); B29C 64/209 (2017.08); B29C 64/386 (2017.08); B29C 64/393 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B29C 2945/7604 (2013.01); B29C 2945/76056 (2013.01); B29C 2945/76083 (2013.01); B29C 2945/7618 (2013.01); B33Y 50/00 (2014.12);
Abstract

A material feeding device includes a plasticizing unit configured to plasticize resin pellets to generate a plasticized material, a nozzle that has a nozzle opening and is configured to send out the plasticized material from the nozzle opening to the outside, a flow path that communicates with the nozzle opening and through which the plasticized material flows, a suction unit including a plunger configured to suction the plasticized material into a first cylinder coupled to the flow path, and a plunger motor configured to drive the plunger, and a detection unit configured to detect a position of the plunger in the first cylinder.

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