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. 07, 2020
Filed:
Nov. 23, 2016
Applicant:
Tenneco Inc., Lake Forest, IL (US);
Inventors:
Airton Martins, Granger, IN (US);
Carmo Ribeiro, Ann Arbor, MI (US);
Assignee:
Tenneco Inc, Lake Forest, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); B23P 15/10 (2006.01); B23B 1/00 (2006.01); F02F 3/22 (2006.01); F02F 3/26 (2006.01);
U.S. Cl.
CPC ...
B23P 15/10 (2013.01); B23B 1/00 (2013.01); F02F 3/003 (2013.01); F02F 3/22 (2013.01); F02F 3/26 (2013.01); B23B 2215/245 (2013.01); Y10T 29/49252 (2015.01);
Abstract
A one-piece piston including a combustion bowl which is cast to its final form and includes at least one irregularity spaced from a central axis. The piston is initially fabricated of an upper crown member and a lower crown member, which are joined together. The piston is then chucked into a machine tool, such as a CNC lathe, which locates either the piston's top surface or a portion of the combustion bowl and establishes its location as a datum plane. It is this datum plane which serves as a reference location for subsequent machining operations of the piston.