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.

Date of Patent:
Mar. 13, 2018

Filed:

Sep. 15, 2016
Applicants:

John F Siekirk, Iii, Clarkston, MI (US);

Dajun Zhou, Troy, MI (US);

Changqing Du, Troy, MI (US);

Robert D Miller, Lake Orion, MI (US);

Inventors:

John F Siekirk, III, Clarkston, MI (US);

Dajun Zhou, Troy, MI (US);

Changqing Du, Troy, MI (US);

Robert D Miller, Lake Orion, MI (US);

Assignee:

FCA US LLC, Auburn Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 22/06 (2006.01); B21D 24/08 (2006.01);
U.S. Cl.
CPC ...
B21D 24/08 (2013.01); B21D 22/06 (2013.01);
Abstract

A binder assembly for stamping sheet material includes an upper die, a stationary punch, an outer ring, and an inner ring. The stationary punch is aligned to be received inside a cavity of the upper die. The outer ring and the inner ring extend around the punch and are movable relative thereto. The inner ring includes teeth on a top surface and is positioned an initial distance from an end of the punch. The upper die is driven along the punch the initial distance such that the punch is received inside the cavity of the upper die a partial distance and a remaining distance such that the punch is received inside the cavity of the upper die a deeper distance.


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