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:
Jul. 18, 2023
Filed:
Mar. 27, 2019
Applicant:
Dupont Polymers, Inc., Wilmington, DE (US);
Inventor:
Michel C. Renaud, Prangins, CH;
Assignee:
DuPont Polymers, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 11/11 (2006.01); F16L 11/12 (2006.01); F02M 35/10 (2006.01); F16L 11/15 (2006.01);
U.S. Cl.
CPC ...
F16L 11/111 (2013.01); F02M 35/10137 (2013.01); F16L 11/121 (2013.01); F16L 11/15 (2013.01);
Abstract
Provided herein is a fluid ductcomprising a tubular base wallsurrounding a duct channel and at least one bellowsformed along a section of the tubular base wall. The bellowscomprises a plurality of convoluteshaving a profileprojecting radially from the base wall. At least one convolutewraps around the duct channel at a wrap-around angle Ω of between 180° and 720° from a first endto a second endof the convolute, said second endbeing offset in a flow direction F parallel to a centerline C of the duct channel by a non-zero offset distance D from the first end