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:
Mar. 05, 2019
Filed:
Feb. 26, 2014
Brugg Rohr Ag Holding, Brugg, CH;
Alfred Oeschger, Wil, CH;
Roberto Rudi, Schinznach-Dorf, CH;
BRUGG ROHR AG HOLDING, Brugg, CH;
Abstract
The invention relates to a corrugated, thermally insulated conduit for fluids, e.g. for district heating networks, wherein at least one medium pipe () made of plastic or metal is surrounded by a thermal insulation layer (), consisting of a polyurethane foam for example. The corrugation () of the outer jacket () made of plastic is formed such that both the corrugation valleys () and the corrugation peaks () are round, particularly circular. In addition, the corrugation is dimensioned such that the corrugation depth T lies in a range of 4.5 mm to 8 mm for a conduit outer diameter range of 63 mm to 202 mm. This shaping and dimensioning of the conduit results in very good flexibility and thus the ability to roll up the pipe for the transport thereof.