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:
Jun. 08, 2021
Filed:
Apr. 12, 2017
Applicant:
Kobe Steel, Ltd., Hyogo, JP;
Inventors:
Kazuhisa Fukutani, Hyogo, JP;
Kosuke Higashi, Hyogo, JP;
Assignee:
KOBE STEEL, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 5/00 (2006.01); B29C 48/395 (2019.01); B29B 7/48 (2006.01); B29B 7/42 (2006.01); B29C 48/80 (2019.01); B29B 7/74 (2006.01); B29C 48/60 (2019.01); B29C 48/385 (2019.01); B29C 48/59 (2019.01); B29C 48/35 (2019.01); B29C 48/525 (2019.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/395 (2019.02); B29B 7/42 (2013.01); B29B 7/424 (2013.01); B29B 7/48 (2013.01); B29B 7/489 (2013.01); B29B 7/7495 (2013.01); B29C 48/60 (2019.02); B29C 48/80 (2019.02); B29C 48/35 (2019.02); B29C 48/385 (2019.02); B29C 48/525 (2019.02); B29C 48/59 (2019.02); B29L 2007/002 (2013.01);
Abstract
A screw extruder which extrudes a kneaded material includes a screw having a helical flight provided on an outer peripheral surface of a shaft portion thereof, and a chamber housing the screw. In the screw extruder, a flight thickening portion is provided at a part which is a tip portion of the flight and is on the reverse side of a rotation direction of the flight.