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. 27, 2015
Filed:
Sep. 22, 2011
Applicants:
Stefan Buettner, Markgroeningen, DE;
Wolfgang Laib, Besigheim, DE;
Inventors:
Stefan Buettner, Markgroeningen, DE;
Wolfgang Laib, Besigheim, DE;
Assignee:
TRUMPF Werkzeugmaschinen GmbH + Co. KG, Ditzingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 28/34 (2006.01); B21D 28/00 (2006.01); B21D 28/02 (2006.01); B21D 28/04 (2006.01); B21D 37/00 (2006.01); B21D 37/04 (2006.01); B21D 37/14 (2006.01);
U.S. Cl.
CPC ...
B21D 28/34 (2013.01); B21D 28/00 (2013.01); B21D 28/02 (2013.01); B21D 28/04 (2013.01); B21D 37/00 (2013.01); B21D 37/04 (2013.01); B21D 37/14 (2013.01); Y10T 29/49826 (2015.01); Y10T 83/9476 (2015.04);
Abstract
In some aspects of the invention, a punching tool includes a punching stamp including a stamp shaft and an axial stop; and an adjustment ring having a center opening configured to receive the stamp shaft and abut the axial stop, where a first mark is located along a cylindrical portion of the stamp shaft adjoining the axial stop, and at least a portion of the first mark remains visible when the adjustment ring is abutted against the axial stop.