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. 30, 2018
Filed:
Aug. 21, 2013
Applicant:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Inventors:
Donald E. Army, Jr., Enfield, CT (US);
George Kan, West Hartford, CT (US);
Michael Spineti, Newington, CT (US);
Kurt L. Stephens, Enfield, CT (US);
Michael Zager, Windsor, CT (US);
Assignee:
HAMILTON SUNDSTRAND CORPORATION, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 15/26 (2006.01); B23H 1/00 (2006.01); F28F 3/02 (2006.01); F28D 9/00 (2006.01);
U.S. Cl.
CPC ...
B23P 15/26 (2013.01); B23H 1/00 (2013.01); F28D 9/0062 (2013.01); F28F 3/025 (2013.01); F28F 2225/06 (2013.01); F28F 2265/26 (2013.01); Y10T 29/4935 (2015.01);
Abstract
A method of extending the lifetime of brazed primary hot inlet wavy fin structures of aircraft heat exchangers includes inserting slots in the fins. The slots increase the mechanical compliance of the fins as well as act as crack arrestors should a thermally induced fracture occur. In an embodiment, the slots are inserted by EDM.