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:
Dec. 11, 2001
Filed:
Sep. 09, 1999
Applicant:
Inventors:
Wayne Clifton Augustus Wright, Kent, GB;
John Alexandre Boudry, Brettenham, GB;
Assignee:
Petrotechnik Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/100 ;
U.S. Cl.
CPC ...
F16L 1/100 ;
Abstract
A flexible secondarily-contained pipe of unitary or one-piece construction characterized in that it comprises the following combination of features: an inner supply pipe (,); an inner barrier layer (,) which forms an internal surface of the supply pipe (,) and which is formed from a first polymeric plastics material, an outer containment pipe (,); a plurality of passages associated with the secondary containment pipe, said passages being adapted to receive any fluid which has leaked from the inner supply pipe and to convey said fluid to a remote leak detector.