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. 03, 2013
Filed:
May. 21, 2008
Applicants:
Chak Yin Tang, Kowloon, CN;
Tai Chiu Lee, Kowloon, CN;
Luen Chow Chan, Kowloon, CN;
Nga Yung NG, Kowloon, CN;
Inventors:
Chak Yin Tang, Kowloon, CN;
Tai Chiu Lee, Kowloon, CN;
Luen Chow Chan, Kowloon, CN;
Nga Yung Ng, Kowloon, CN;
Assignee:
The Hong Kong Polytechnic University, Kowloon, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 37/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an apparatus for attachment to a conventional sheet metal forming press. The apparatus allows the sheet metal forming process to be preformed fully submerged in an oil. Methods for sheet metal forming in oil are also provided.