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:
Jan. 17, 2017
Filed:
Feb. 19, 2015
Applicant:
National Machinery Llc, Tiffin, OH (US);
Inventors:
Thomas E. Hay, Tiffin, OH (US);
Jeffrey W. Carper, Tiffin, OH (US);
Assignee:
NATIONAL MACHINERY LLC, Tiffin, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21J 9/02 (2006.01); B21J 13/14 (2006.01);
U.S. Cl.
CPC ...
B21J 13/14 (2013.01); B21J 9/022 (2013.01);
Abstract
A tool for a progressive forming machine comprising an assembly having a workpiece shaping cavity symmetrical about an axis and including an end wall transverse to the axis, a conical bore open to the end wall and centered on the axis, the sides of the conical bore being described by a relatively small angle relative to the axis, and an ejector pin for forcing workpieces form the cavity, the ejector pin having an end face and a conical body portion rearward of the end face, the conical body portion having an external surface matching a surface of the conical bore.