Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OSAKA RASENKAN KOGYO Co Ltd
Original Assignee
OSAKA RASENKAN KOGYO Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OSAKA RASENKAN KOGYO Co LtdfiledCriticalOSAKA RASENKAN KOGYO Co Ltd
Publication of FR2268216A1publicationCriticalpatent/FR2268216A1/fr
Application grantedgrantedCritical
Publication of FR2268216B3publicationCriticalpatent/FR2268216B3/fr
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L9/00—Rigid pipes
F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Rigid Pipes And Flexible Pipes
(AREA)
Duct Arrangements
(AREA)
Joints That Cut Off Fluids, And Hose Joints
(AREA)
FR7504522A1974-04-161975-02-13Connection of spirally corrugated air ducts - has ends of tubes doubly interlocked to give airtight joint
GrantedFR2268216A1
(en)
