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. 08, 2009
Filed:
Sep. 13, 2006
Hirofumi Watanabe, Hiroshima, JP;
Kazuhiro Kodate, Hiroshima, JP;
Hirofumi Watanabe, Hiroshima, JP;
Kazuhiro Kodate, Hiroshima, JP;
The Japan Steel Works, Ltd., Tokyo, JP;
Abstract
In an extruder of the invention, a screw receiving portion penetrates through a cylinder from one connection surface to the other connection surface thereof and the connection surface of the cylinder is connected to the connection surface of other cylinder, a key groove for positioning the other cylinder and a recess having a taper surface are formed in at least one of outer wall surface of the cylinder except the connection surface thereof, and a wedge portion of a connection member is pressed into the recess to connect adjacent cylinders.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile