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:
Apr. 09, 2019
Filed:
Jun. 13, 2016
Applicant:
Eaton Corporation, Cleveland, OH (US);
Inventor:
Gary Janowiak, Saginaw, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/14 (2006.01); F01L 1/24 (2006.01); B21C 23/14 (2006.01); B21C 23/20 (2006.01);
U.S. Cl.
CPC ...
F01L 1/24 (2013.01); B21C 23/14 (2013.01); B21C 23/20 (2013.01); F01L 1/2405 (2013.01); F01L 1/14 (2013.01); F01L 2103/00 (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 a generally cylindrical surface extending between a first end and a second end, transferring the slug to a first forming station, at the first forming station forming an indentation in at least one of the first and second ends, and rotating the slug and transferring the slug to a second forming station. The method further includes extruding a first bore through the first end while simultaneously forming a hemispherical surface at the second end, backward extruding a second bore at the first end, and forming a counterbore in the second end.