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. 04, 2003
Filed:
Apr. 06, 2001
Harald Arnt Friisk, Oslo, NO;
Norsk Hydro ASA, Olso, NO;
Abstract
A device in connection with a riser ( ) for the transport of oil and/or gas, possibly including water, from a transport system, transport pipe ( ) or similar structure on the sea bed to a platform or similar arrangement. To permit the use a riser ( ) for the transport of oil and/or gas from a small field with low oil/gas production where a transport pipe ( ) with a small diameter is used, a flexible pipe ( ) with generally the same internal diameter as the transport pipe ( ) is arranged inside the riser ( ). At its upper and lower ends, the riser ( ) is provided with a coupling ( ), which forms a seal between the transport pipe ( ) and the flexible pipe ( ) and also forms a seal at the ends of the riser so that the riser is closed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile