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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 11229889 B1

PDFFull Text
Date of Patent:
Jan. 25, 2022

Filed:

Oct. 27, 2017

Extruder screw with alternately-arranged conveyance portions and extruders and extrusion methods using the extruder screw

Applicant:

Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;

Inventors:

Akiyoshi Kobayashi, Fuji, JP;

Shigeyuki Fujii, Numazu, JP;

Takafumi Sameshima, Mishima, JP;

Assignee:

Shibaura Machine Co., Ltd., Tokyo, JP;

Attorney:

DLA Piper LLP US

Primary Examiner:

Charles Cooley

Int. Cl.
CPC ...
B29B 7/42 (2006.01); B29B 7/82 (2006.01); B29C 48/74 (2019.01); B29C 48/25 (2019.01); B29C 48/505 (2019.01); B29B 7/48 (2006.01); B29C 48/53 (2019.01); B29C 48/575 (2019.01); B29C 48/57 (2019.01); B29C 48/51 (2019.01); B29C 48/67 (2019.01); B29K 101/12 (2006.01); B29K 105/00 (2006.01); B01F 7/00 (2006.01); B01F 15/06 (2006.01);
U.S. Cl.
CPC ...
B01F 7/00416 (2013.01); B01F 15/06 (2013.01); B29B 7/42 (2013.01); B29B 7/421 (2013.01); B29B 7/429 (2013.01); B29B 7/483 (2013.01); B29B 7/489 (2013.01); B29B 7/823 (2013.01); B29C 48/2564 (2019.02); B29C 48/25682 (2019.02); B29C 48/268 (2019.02); B29C 48/507 (2019.02); B29C 48/51 (2019.02); B29C 48/53 (2019.02); B29C 48/57 (2019.02); B29C 48/575 (2019.02); B29C 48/745 (2019.02); B01F 2015/061 (2013.01); B01F 2215/0049 (2013.01); B29C 48/67 (2019.02); B29K 2101/12 (2013.01); B29K 2105/251 (2013.01);
Abstract

A conveyance portion, a barrier portion, and a path are provided at places of a screw main body in which a kneading portion is provided. In at least one of the places, the path is provided inside the screw main body, and includes an entrance and an exit. The entrance is opened to urge the raw materials having the conveyance limited by the barrier portion to increase pressure on the raw materials, to flow in the entrance. The raw materials flowing from the entrance flow through the path in the same direction as a conveyance direction of the conveyance portion.

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Quick Actions:

Kobayashi, Akiyoshi. (2022). Extruder screw with alternately-arranged conveyance portions and extruders and extrusion methods using the extruder screw (U.S. Patent No. 11229889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11229889

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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