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:
Dec. 09, 2003
Filed:
Mar. 26, 2001
Hiromi Takasaki, Tokyo, JP;
Yoshikazu Takamatsu, Tokyo, JP;
Nobuo Ichimura, Tokyo, JP;
Susumu Sato, Tochigi, JP;
Calsonic Kansei Corporation, Tokyo, JP;
Abstract
Firstly, using a cutting tool , connecting ribs are cut off from the end face of a duplex pipe which is held with an outer pipe chucked (rib cutting step). Next, the duplex pipe is cut at and from the end face of the duplex pipe up to the portion thereof corresponding to the exposed length of the inner pipe to thereby form a slit in the outer pipe and connecting ribs (slit forming step) The cutting tool comprises a guide hole into which the inner pipe can be inserted while guiding the inner pipe outer peripheral surface , a cutting device for cutting the connecting ribs , and a guide pin which is disposed in the guide hole and can be inserted into the inner pipe while guiding the inner pipe inner peripheral surface
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile