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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.:

US 9611803 B1

PDFFull Text
Date of Patent:
Apr. 04, 2017

Filed:

Sep. 11, 2013

Engine piston and a process for making an engine piston

Applicants:

Mahle Metal Leve S/a, Jundai-Sp, BR;

Mahle International Gmbh, Stuttgart, DE;

Inventors:

Paulo R. Vieira De Morais, São Bernardo do Campo, BR;

Antonio E. Meirelles Tomanik, São Paulo, BR;

Denys Flores, São Paulo, BR;

Assignees:

Mahle Metal Leve S/A, , BR;

Mahle International GmbH, , DE;

Attorney:

Fishman Stewart PLLC

Primary Examiner:

Marguerite McMahon

Int. Cl.
CPC ...
F02F 3/10 (2006.01); F02F 3/00 (2006.01); B23K 20/12 (2006.01); B23K 20/233 (2006.01); B23K 20/24 (2006.01); F02F 3/14 (2006.01); B05D 3/12 (2006.01); C23C 4/18 (2006.01); C23C 8/80 (2006.01); C23C 16/56 (2006.01); C23C 22/82 (2006.01); C23C 26/00 (2006.01); C23C 30/00 (2006.01); C25D 5/48 (2006.01); C25D 7/00 (2006.01); C25D 13/12 (2006.01); F02F 3/12 (2006.01); B23K 101/00 (2006.01); B23K 103/10 (2006.01);
U.S. Cl.
CPC ...
F02F 3/0084 (2013.01); B05D 3/12 (2013.01); B23K 20/1275 (2013.01); B23K 20/2333 (2013.01); B23K 20/24 (2013.01); C23C 4/18 (2013.01); C23C 8/80 (2013.01); C23C 16/56 (2013.01); C23C 22/82 (2013.01); C23C 26/00 (2013.01); C23C 30/005 (2013.01); C25D 5/48 (2013.01); C25D 7/00 (2013.01); C25D 13/12 (2013.01); F02F 3/10 (2013.01); F02F 3/12 (2013.01); F02F 3/14 (2013.01); B23K 2201/003 (2013.01); B23K 2201/006 (2013.01); B23K 2203/10 (2013.01); F05C 2253/12 (2013.01);
Abstract

A piston for an internal combustion engine may include a substantially circular body composed of an aluminum containing base material defining a top portion having at least one cavity. At least one coating layer may be disposed on at least one area defined by at least one of the top portion and the at least one cavity. The at least one coating layer may include at least one chemical compound derived from a chemical reaction between the base material of the body and the at least one coating layer in response to friction generated by a dragging movement of a non-consumable rotary pin with the at least one coating layer.

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