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:
Jun. 21, 2022
Filed:
Dec. 02, 2021
Applicant:
Ki Hong Kim, Gyeonggi-do, KR;
Inventors:
Ki Hong Kim, Gyeonggi-do, KR;
Hyen Dong Kim, Gyeonggi-do, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 15/26 (2006.01); F28F 9/26 (2006.01); B21D 53/06 (2006.01); B21D 39/04 (2006.01);
U.S. Cl.
CPC ...
B23P 15/26 (2013.01); B21D 39/046 (2013.01); B21D 53/06 (2013.01); F28F 9/26 (2013.01);
Abstract
A method for assembling a brazing ring on a return tube constituting a refrigerant passage of a heat exchanger according to an embodiment of the present disclosure includes performing a pipe shrinking process on a straight portion of the return tube, coupling the brazing ring on the return tube through a return tube assembly device, and performing a pipe expanding process on the straight portion of the return tube to which the brazing ring is coupled. The coupling of the brazing ring on the return tube is performed using the return tube assembly device.