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:
Oct. 06, 2015
Filed:
Apr. 27, 2012
Rainer Goering, Borken, DE;
Andreas Dowe, Borken, CF;
Karl Kuhmann, Duelmen, DE;
Maximilian Gruhn, Marl, DE;
Juergen Franosch, Marl, DE;
Rainer Goering, Borken, DE;
Andreas Dowe, Borken, CF;
Karl Kuhmann, Duelmen, DE;
Maximilian Gruhn, Marl, DE;
Juergen Franosch, Marl, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
A flexible pipe of multilayer structure which comprises the following layers, from the inside to the outside: an interior lining; an inner reinforcement layer; a layer of molded electrically conductive plastic; an outer reinforcement layer; and an exterior sheath. The electrically conductive plastic layer is in electrical contact with the two reinforcement layers, and the two reinforcement layers can be connected to a source of electrical current. It is thus possible to achieve efficient heating of the pipe, and it can therefore be used for conveying oil in cold regions.