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:
Sep. 05, 2023
Filed:
Jun. 11, 2020
Applicant:
Tata Steel Nederland Technology B.v., Velsen-Noord, NL;
Inventor:
Tessa Virginia Van Kol, Voorschoten, NL;
Assignee:
TATA STEEL NEDERLAND TECHNOLOGY B.V., Velsen-Noord, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 9/14 (2006.01); B21C 37/15 (2006.01); B23K 31/02 (2006.01); F16L 9/22 (2006.01); F16L 9/18 (2006.01); B23K 101/06 (2006.01);
U.S. Cl.
CPC ...
B21C 37/154 (2013.01); B23K 31/027 (2013.01); F16L 9/18 (2013.01); F16L 9/22 (2013.01); B23K 2101/06 (2018.08);
Abstract
A double-walled tube section for constructing a double-walled tube segment suitable for underpressure applications such as an evacuated tube transport system including elongated curved outer shell parts, interlayer shell parts and an inner wall. The elongated curved outer shell parts form the outer wall of the double-walled tube segment. The interlayer shell parts are of thin sheet and include a rectanqular portion having short edges and long edges and a flange on at least one of the short edges.