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. 11, 2022
Filed:
Jul. 27, 2016
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Hsp Technologies Inc., Tsukuba, JP;
Akiyoshi Kobayashi, Fuji, JP;
Shigeyuki Fujii, Numazu, JP;
Takafumi Sameshima, Mishima, JP;
Hiroshi Shimizu, Tsukuba, JP;
Shibaura Machine Co., Ltd., Tokyo, JP;
HSP Technologies Inc., Tsukuba, JP;
Abstract
An extruder screw conveying raw materials while kneading them includes a screw main body, conveyance portions, barrier portions, and paths. The conveyance portions convey the raw materials in an axial direction. The paths each include an entrance and an exit. The raw materials, the conveyance of which is limited by the barrier portions, flow in from the entrance. The raw materials flowing in from the entrance flow through the paths in an opposite direction to a conveyance direction. The exit is opened in the outer circumferential surface of the screw main body at a position outside the conveyance portions in which the entrance is opened.