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:
Oct. 13, 2015
Filed:
Feb. 26, 2009
Feizhou Wang, Osaka, JP;
Tomoyasu Nakano, Osaka, JP;
Akinori Inokuma, Osaka, JP;
Jilong Yin, Osaka, JP;
Terutomo Akai, Osaka, JP;
Feizhou Wang, Osaka, JP;
Tomoyasu Nakano, Osaka, JP;
Akinori Inokuma, Osaka, JP;
Jilong Yin, Osaka, JP;
Terutomo Akai, Osaka, JP;
NAKATA MANUFACTURING CO., LTD., Osaka, JP;
Abstract
A forming apparatus and method for forming a sectional profile of round tubing, angled tubing or open forming stock without losing the manufacturability of conventional roll forming The forming apparatus comprises individual shoe blocks having a pass on their rotating curved faces. The shoe blocks can be moved in the circumferential direction on an endless track, and are connected to provide the same curvature radius and length as a required arc segment of a virtual large-diameter circle.