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:
Jan. 08, 2013
Filed:
Dec. 18, 2007
Shinji Kakine, Shiga, JP;
Hiroshi Sugahara, Shiga, JP;
Takushi Minagi, Shiga, JP;
Takashi Yamamoto, Shiga, JP;
Shinji Kakine, Shiga, JP;
Hiroshi Sugahara, Shiga, JP;
Takushi Minagi, Shiga, JP;
Takashi Yamamoto, Shiga, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
In an embodiment, a shaping frame () of a pipe producing apparatus () includes a plurality of linking bodies () in which a pair of linking elements () are rotatably coupled via a coupling shaft (), a bending link () with opposite ends of which coupling elements are rotatably coupled via coupling shafts () and which expands or contracts the shaping frame (), a drive unit () with opposite ends of which coupling elements () are rotatably coupled via coupling shafts () and which forcedly sends out a profile strip () from the inside, and a joint unit () with opposite ends of which coupling elements () are rotatably coupled via coupling shafts () and which is provided at a joint portion () of a winding of the profile strip.