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:
Mar. 03, 2015
Filed:
Dec. 09, 2010
Applicants:
Artem Seryi, Wiesbaden, DE;
Lothar Seybold, Nauheim, DE;
Inventors:
Artem Seryi, Wiesbaden, DE;
Lothar Seybold, Nauheim, DE;
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 7/10 (2006.01); B21D 39/04 (2006.01); B21D 53/06 (2006.01); F28F 9/02 (2006.01);
U.S. Cl.
CPC ...
B21D 53/06 (2013.01); B21D 39/04 (2013.01); F28D 7/106 (2013.01); F28F 9/0246 (2013.01);
Abstract
A connection device of a double-walled heat exchanger tube is provided, in particular for the heat exchanger of a motor vehicle air conditioning system. The heat exchanger tube has an outer tube and an inner tube that runs coaxially inside the outer tube spaced radially apart from it. The connection device further has a fitting for accommodating radially overlapping end sections of the inner and outer tube. The outer and inner tubes according to the invention are at least sectionally joined together without soldering in the area of the fitting, and with the fitting.