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:
Jul. 14, 2026
Filed:
Nov. 17, 2021
Applicant:
The Japan Steel Works, Ltd., Tokyo, JP;
Inventors:
Akihiro Naito, Tokyo, JP;
Takuya Yufu, Tokyo, JP;
Assignee:
THE JAPAN STEEL WORKS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/77 (2006.01); B29C 45/28 (2006.01); B29C 45/74 (2006.01); B29C 45/76 (2006.01);
U.S. Cl.
CPC ...
B29C 45/77 (2013.01); B29C 45/28 (2013.01); B29C 45/74 (2013.01); B29C 45/7613 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/7618 (2013.01); B29C 2945/76498 (2013.01);
Abstract
An injection molding machine includes a heating cylinder having a gas inlet, a screw, a gas cylinder, a pressure reducing valve configured to reduce a primary pressure of a gas from the gas cylinder to a secondary pressure, a gas supply portion configured to supply the gas at the secondary pressure to the gas inlet, an injection material pressure detection device configured to detect an injection material pressure in a vicinity of the gas inlet, and a controller. The controller is configured to detect an abnormality by comparing the injection material pressure with the secondary pressure.