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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 11400633 B1

PDFFull Text
Date of Patent:
Aug. 02, 2022

Filed:

Sep. 29, 2016

Extruder screw passages, extruder and extrusion method

Applicants:

Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;

Hsp Technologies Inc., Tsukuba, JP;

Inventors:

Akiyoshi Kobayashi, Fuji, JP;

Shigeyuki Fujii, Numazu, JP;

Takafumi Sameshima, Mishima, JP;

Hiroshi Shimizu, Tsukuba, JP;

Assignees:

Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;

HSP Technologies Inc., Tsukuba, JP;

Attorney:

DLA Piper LLP US

Primary Examiner:

Charles Cooley

Int. Cl.
CPC ...
B29C 48/515 (2019.01); B29C 48/395 (2019.01); B29C 48/68 (2019.01); B29C 48/285 (2019.01); B29C 48/355 (2019.01); B29C 48/88 (2019.01); B29B 7/82 (2006.01); B29B 7/48 (2006.01); B29B 7/42 (2006.01); B29B 7/84 (2006.01); B29C 48/55 (2019.01); B29C 48/00 (2019.01); B29C 48/51 (2019.01); B29C 48/385 (2019.01); B29C 48/76 (2019.01); B29C 48/40 (2019.01); B29C 48/57 (2019.01); B29C 48/54 (2019.01); B29C 48/80 (2019.01); B29K 33/00 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/515 (2019.02); B29B 7/426 (2013.01); B29B 7/429 (2013.01); B29B 7/483 (2013.01); B29B 7/487 (2013.01); B29B 7/489 (2013.01); B29B 7/82 (2013.01); B29B 7/845 (2013.01); B29C 48/023 (2019.02); B29C 48/298 (2019.02); B29C 48/355 (2019.02); B29C 48/397 (2019.02); B29C 48/51 (2019.02); B29C 48/55 (2019.02); B29C 48/68 (2019.02); B29C 48/911 (2019.02); B29C 48/385 (2019.02); B29C 48/402 (2019.02); B29C 48/54 (2019.02); B29C 48/57 (2019.02); B29C 48/767 (2019.02); B29C 48/834 (2019.02); B29K 2033/12 (2013.01); B29K 2069/00 (2013.01);
Abstract

An extruder screw includes a screw body. The screw body is rotated about an axis parallel to a direction of conveyance of a raw material. A conveyance portion having a flight is provided on the outer peripheral surface of the screw body. The flight is configured to convey the raw material along the axis of the screw body when the screw body is rotated. A passage for permitting the raw material fed by the flight to pass therethrough to the outer peripheral surface of the screw body is provided in the screw body in a position deviated from the axis of the screw body.

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