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:
Oct. 22, 2019
Filed:
Apr. 16, 2015
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventor:
Matthias Seifried, Boesingen, DE;
Assignee:
Mahle International GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 11/04 (2006.01); B23K 9/08 (2006.01); F02F 3/00 (2006.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
B23K 11/04 (2013.01); B23K 9/08 (2013.01); F02F 3/003 (2013.01); B23K 2101/003 (2018.08); F02F 2003/0061 (2013.01);
Abstract
A piston and method of making the same includes providing a piston lower part defining a piston axis and at least a portion of the upper combustion bowl surface, and assembling a piston upper part to the piston lower part. The piston upper and lower parts cooperate to define at least in part a cooling gallery extending annularly about the piston. The method further includes bringing the piston upper and lower parts together along respective upper and lower mating surfaces and inducing an electric current between the upper and lower mating surfaces while the upper and lower mating surfaces are in contact.