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:
Aug. 16, 2011
Filed:
Apr. 05, 2007
Applicant:
Andreas Hüther, Dippach, DE;
Inventor:
Andreas Hüther, Dippach, DE;
Assignee:
Material Sciences Corporation, Elk Grove Village, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 31/02 (2006.01); B21D 28/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method includes providing a sheet having layers characterized by different softnesses, providing a die component having a leading surface that is generally concave, and causing the leading surface to puncture the sheet thereby to cut a part from the sheet. The method provides improved flatness of parts cut from sheets having layers of varying softness and prevents soft material from exiting the sheet because the peripheral edge of the leading surface applies maximum pressure to the sheet during the puncturing step.