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.)
Interflex SA
Original Assignee
Interflex SA
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 Interflex SAfiledCriticalInterflex SA
Priority to ES1984277080UpriorityCriticalpatent/ES277080U/en
Publication of ES277080UpublicationCriticalpatent/ES277080U/en
Corrugated pipe, of the type comprising a helically wound fluted metal strip and with the edges of the adjacent loops crimped together, allowing a limited shrinkage and extension of the tube, the strip of which has an external groove and an internal groove, which correspond, respectively, to an inner and an outer rib, which tube has an outer impermeable sheath of thermoplastic material, which adapts to said grooves and ribs, characterized essentially by the fact that the internal groove of the metal strip is noticeably narrower external, so that when shrinking or bending the tube, the internal groove closes, while the outer one remains partially open. (Machine-translation by Google Translate, not legally binding)
ES1984277080U1984-01-251984-01-25Wave tube (Machine-translation by Google Translate, not legally binding)
PendingES277080U
(en)