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:
Sep. 21, 2021
Filed:
Dec. 21, 2018
Applicant:
Toshiba Kikai Kabushiki Kaisha, Chiyoda-ku, JP;
Inventor:
Masanobu Oishi, Fuji, JP;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/48 (2006.01); B29C 48/68 (2019.01); B29C 48/25 (2019.01); B30B 11/24 (2006.01);
U.S. Cl.
CPC ...
B29B 7/48 (2013.01); B29B 7/488 (2013.01); B29C 48/2565 (2019.02); B29C 48/682 (2019.02); B30B 11/243 (2013.01);
Abstract
A barrel block for a twin-screw extruder constitutes a barrel including a cylinder and has joints at both ends. A first joint includes a first inner joint face on a peripheral edge of a first hole of an insertion hole for screws, and includes a first flank face and a first outer joint face on an outer periphery of the first inner joint face. The first outer joint face is located in the outer periphery of a plurality of first bolt holes. The first outer joint face is more recessed toward a second block end face than the first inner joint face.