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1. (WO1998049485) ASYMMETRICAL CONVOLUTED TUBE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049485 International Application No.: PCT/US1998/008718
Publication Date: 05.11.1998 International Filing Date: 30.04.1998
Chapter 2 Demand Filed: 05.11.1998
IPC:
F16L 11/11 (2006.01) ,F16L 11/15 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11
Hoses, i.e. flexible pipes
04
made of rubber or flexible plastics
11
with corrugated wall
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11
Hoses, i.e. flexible pipes
14
made of rigid material, e.g. metal or hard plastics
15
corrugated
Applicants:
ITT MANUFACTURING ENTERPRISES, INC. [US/US]; 1105 North Market Street Wilmington, DE 19801, US
Inventors:
PONTBRIAND, Duane, J.; US
BENSKO, David; US
KLINGER, Gary, O.; US
Agent:
HANLON, William, M., Jr.; Young & Basile Suite 624 3001 West Big Beaver Road Troy, MI 48084-3107, US
Priority Data:
08/848,81101.05.1997US
Title (EN) ASYMMETRICAL CONVOLUTED TUBE
(FR) TUBE ASYMETRIQUE A CIRCONVOLUTIONS
Abstract:
(EN) A tube (22) having a cylindrical main body (30) and a thin wall defined by an inner surface (44) and outer surface (46). The tube (22) includes a first segment (32) having a generally constant cylindrical cross section and another segment (34) having a variable cross section containing convolutions to allow for flexing of the tube (22) during installation. The convolutions (40) extend less than the entire circumference of the tube or have tapered side walls (74) which substantially reduce the size of the convolutions (40) as the convolutions (40) extend from one position along the circumference to a second position.
(FR) La présente invention concerne un tube (22) constitué d'un corps principal (30) cylindrique et d'une paroi fine définie par une surface intérieure (44) et une surface extérieure (46). Le tube (22) comprend un premier segment (32) possédant une coupe transversale cylindrique, généralement constante, et un autre segment (34) possédant une coupe transversale contenant des circonvolutions destinées à faciliter la flexion du tube au cours de l'installation. Les circonvolutions (40) s'étendent sur une longueur moins grande que la circonférence totale du tube ou présentent des parois latérales coniques qui réduisent sensiblement la taille des circonvolutions (40) lorsque lesdites circonvolutions (40) s'étendent d'une position le long de la circonférence à une seconde position.
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Designated States: JP
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0979368JP2000517035