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:
Jul. 20, 2010
Filed:
Dec. 11, 2007
Applicants:
Mun Yong Lee, Busan, KR;
Jung Su Yoo, Busan, KR;
Inventors:
Mun Yong Lee, Busan, KR;
Jung Su Yoo, Busan, KR;
Assignee:
Sungwoo Hitech Co., Ltd., Jeongkwan-myeon, Kijang-kun, Busan, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R 19/18 (2006.01); B21D 53/88 (2006.01);
U.S. Cl.
CPC ...
Abstract
A roll forming apparatus and a method thereof form a composite panel by simultaneously roll forming upper and lower plates with different thicknesses and a zigzag-shaped core panel, and welding them together. A bumper beam is manufactured by using the composite panel.