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:
Nov. 04, 2025
Filed:
Aug. 17, 2021
Applicant:
Shibaura Machine Co., Ltd., Tokyo, JP;
Inventor:
Shozo Suzuki, Numazu, JP;
Assignee:
SHIBAURA MACHINE CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/76 (2019.01); B29B 7/48 (2006.01); B29C 48/405 (2019.01);
U.S. Cl.
CPC ...
B29C 48/767 (2019.02); B29B 7/48 (2013.01); B29C 48/405 (2019.02); B29C 48/763 (2019.02);
Abstract
An extruder is provided with: a screw rotationally driven about the axis by a first motor; a barrel having a screw hole into which the screw is inserted and a de-airing port configured to discharge air inside the screw hole; a filter configured such that a part thereof faces the de-airing port of the barrel; and a filter-driving mechanism configured to move the filter to shift the part of the filter facing the de-airing port.