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:
Nov. 17, 2020
Filed:
Oct. 25, 2017
Applicant:
Heraeus Electro-nite International N.v., Houthalen, BE;
Inventors:
Maarten Spanjers, Bergeijk, NL;
Wouter Siemons, Kinrooi, BE;
Assignee:
HERAEUS ELECTRO-NITE INTERNATIONAL N.V., Houthalen, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31C 1/00 (2006.01); B32B 1/08 (2006.01); F16L 11/00 (2006.01);
U.S. Cl.
CPC ...
B31C 1/00 (2013.01); B32B 1/08 (2013.01); F16L 11/00 (2013.01);
Abstract
A convolutely wound tube () is formed of a composite sheet including a first sheet () and a second sheet (). The convolutely wound tube includes a first segment () formed of a plurality of convolute windings () of the first sheet, a second segment () formed of directly adhered and overlapping portions of the first sheet and the second sheet, and a third segment () formed of the second sheet wrapped about and overlying the first sheet. The second segment is an underwrap portion positioned between a layer of the first sheet and a layer of the second sheet.