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. 23, 2010
Filed:
Nov. 14, 2006
Stephan Lange, Wedemark, DE;
Michele Di Palma, Springe, DE;
Christian Frohne, Hannover, DE;
Klaus Schippl, Hannover, DE;
Thomas Merten, Hannover, DE;
Stephan Lange, Wedemark, DE;
Michele Di Palma, Springe, DE;
Christian Frohne, Hannover, DE;
Klaus Schippl, Hannover, DE;
Thomas Merten, Hannover, DE;
Nexans, Paris, FR;
Abstract
A line pipe for the transport of deep-frozen media, consisting of at least two corrugated metal pipes () arranged concentrically and at a distance from one another, an insulation layer () being arranged in the annular gap between the two metal pipes (), the annular gap being evacuated, and a closing valve () provided in the outer metal pipe () being connectable to a vacuum pump, the closing valve being welded, vacuum-tight, into a smooth-walled metal pipe () welded, vacuum-tight, to the exterior of the metal pipes (). The valve body () of the closing valve projects into the interior of the smooth-walled metal pipe () and is flush with the outer surface area of the smooth-walled metal pipe ().