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:
Jul. 12, 2016
Filed:
May. 31, 2012
Applicant:
Gary Janowiak, Saginaw, MI (US);
Inventor:
Gary Janowiak, Saginaw, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 23/00 (2006.01); B21J 5/02 (2006.01); B21J 13/00 (2006.01); F01L 1/18 (2006.01); F01L 1/24 (2006.01); F01L 1/14 (2006.01);
U.S. Cl.
CPC ...
F01L 1/2405 (2013.01); F01L 1/14 (2013.01); Y10T 29/493 (2015.01); Y10T 29/49298 (2015.01); Y10T 29/49304 (2015.01); Y10T 29/49311 (2015.01); Y10T 29/49313 (2015.01); Y10T 29/49995 (2015.01);
Abstract
A method of cold-forming a ball plunger blank includes providing a slug having first and second ends and backward extruding the slug at its first end to form a cavity that is defined by a wall. The method further includes forming a generally ball-shaped outer surface at the second end of the slug to final dimensions. The method also includes upsetting at least a portion of the wall to form a shoulder that at least partially closes the cavity and defines a ball seat surface to final dimensions.