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.:
Date of Patent:
Jan. 25, 2022
Filed:
Oct. 27, 2017
Applicant:
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Shibaura Machine Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/42 (2006.01); B29B 7/48 (2006.01); B29B 7/72 (2006.01); B29C 48/505 (2019.01); B29C 48/25 (2019.01); B29C 48/67 (2019.01); B29C 48/51 (2019.01); B29B 7/82 (2006.01); B29K 101/12 (2006.01); B29K 105/00 (2006.01); B01F 7/00 (2006.01); B01F 15/06 (2006.01);
U.S. Cl.
CPC ...
B29B 7/42 (2013.01); B01F 7/00416 (2013.01); B01F 15/06 (2013.01); B29B 7/421 (2013.01); B29B 7/429 (2013.01); B29B 7/482 (2013.01); B29B 7/483 (2013.01); B29B 7/489 (2013.01); B29B 7/726 (2013.01); B29C 48/2564 (2019.02); B29C 48/25682 (2019.02); B29C 48/507 (2019.02); B29C 48/51 (2019.02); B29C 48/67 (2019.02); B01F 2015/061 (2013.01); B01F 2215/0049 (2013.01); B29B 7/823 (2013.01); B29K 2101/12 (2013.01); B29K 2105/251 (2013.01);
Abstract
At a part of the screw main body at which the kneading portion is provided, conveyance portions, a barrier portion and a path are provided at a plurality of places. 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 in such a manner that the raw material whose pressure is enhanced by being restricted in conveyance by the barrier portion flows into the entrance. The path is formed in such a manner that the raw material flowing into the path from the entrance flows toward the exit in a direction opposite to the direction of conveyance.