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:
May. 18, 2010
Filed:
Oct. 05, 2006
Tsunehiko Yamazaki, Aichi pref., JP;
Naoomi Miyakawa, Aichi pref., JP;
Tsunehiko Yamazaki, Aichi pref., JP;
Naoomi Miyakawa, Aichi pref., JP;
Yamazaki Mazak Corporation, Aichi pref., JP;
Abstract
A joint structure for directly joining a plurality of pipes is provided. A first pipehas a joined end faceobtained by laser machining at a predetermined angle to an axis and a tenonformed on a joined end face. A second pipehas a joined end faceobtained by laser machining at a predetermined angle to an axis and a mortice. By fitting the tenonof the first pipeto the morticeof the second pipe, a joint structure of the two pipesis formed. The joined end faceof the first pipeand the joined end faceof the second pipeare on surface contact over the entire thickness of the pipe.