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:
Feb. 25, 2020
Filed:
Jun. 23, 2017
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventor:
Christopher A. Sanchez, Charlton, MA (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 39/00 (2006.01); F01D 5/18 (2006.01); F02C 7/22 (2006.01); F16L 9/19 (2006.01); F23R 3/28 (2006.01); F02C 7/055 (2006.01); F23R 3/00 (2006.01);
U.S. Cl.
CPC ...
F16L 39/005 (2013.01); F01D 5/18 (2013.01); F02C 7/22 (2013.01); F16L 9/20 (2013.01); F23R 3/283 (2013.01); F02C 7/055 (2013.01); F16L 2201/30 (2013.01); F16N 2210/02 (2013.01); F23R 3/002 (2013.01);
Abstract
A fitting for forming a double-walled tube includes an inner fitting having a first inner weld lip, a second inner weld lip, and an inner body extending from the first inner weld lip to the second inner weld lip and having an outer surface with a first threading. The fitting also includes an outer fitting having a first outer weld lip, a second outer weld lip, and an outer body extending from the first outer weld lip to the second outer weld lip and having an inner surface with a second threading that is configured to mate with the first threading.