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. 14, 2023

Filed:

Oct. 21, 2016
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Chen-Chun Kao, Columbus, IN (US);

John K. Awad, Columbus, IN (US);

Steven Valentin, Columbus, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 7/20 (2006.01); B23H 7/26 (2006.01); B23H 1/02 (2006.01); B23H 9/14 (2006.01); B23H 9/16 (2006.01); B23H 9/00 (2006.01);
U.S. Cl.
CPC ...
B23H 7/20 (2013.01); B23H 1/02 (2013.01); B23H 7/265 (2013.01); B23H 9/14 (2013.01); B23H 9/16 (2013.01); B23H 9/00 (2013.01); B23H 2200/20 (2013.01); G05B 2219/45221 (2013.01);
Abstract

A method is provided comprising identifying an alignment point of a workpiece; positioning a first end of an electrode in the direction of the alignment point of the workpiece; applying a first voltage to the electrode wherein the applied first voltage generates a spark; rotating the electrode in a first direction; advancing the electrode toward the alignment point by a first distance wherein advancing the electrode and applying the first voltage creates a first orifice section; applying a second voltage to the electrode and modifying one or more operational parameters of the electrode; advancing the electrode toward the alignment point by a second distance wherein advancing the electrode and applying the second voltage causes formation of at least a second orifice section; wherein the first and second orifice sections cooperate to form an orifice comprising a first flow area and a second flow area.


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