Abstract: The invention relates to a fluid transport device for incorporating in a structure that is not electrically insulating, in particular being made of a composite and including an electrically resistive tube, with conductive end pieces including means for fastening to said structure, wherein the tube comprises a central section having resistance of less than 10*4? per meter of length and two end sections, at least one of which presents effective resistance lying in the range of 10 ?k to 500 ?k and terminating in an end coupling; at least one conductive end piece and an end section having a said effective resistance lying in the range of 100 ?k to 500 ?k, said effective resistance being defined as the value of the resistance of the end section between the central section and the conductive element.

Abstract: The invention relates to a fluid transport device for incorporating in a structure that is not electrically insulating, in particular being made of a composite and including an electrically resistive tube, with conductive endpieces including means for fastening to said structure, wherein the tube comprises: a central section having resistance of less than 104 ? per meter of length; and two end sections, at least one of which presents effective resistance lying in the range 100 k? to 500 k? and terminating in an end coupling; at least one conductive element electrically connecting a conductive endpiece and an end section having a said effective resistance lying in the range 100 k? to 500 k?, said effective resistance being defined as the value of the resistance of the end section between the central section and the conductive element.

Abstract: The invention relates to a flexible duct of elastomer for transferring fluid and presenting a reinforcing element, wherein said reinforcing element comprises at least one laid-in web. The invention also relates to a method of using elastomer to fabricate a flexible duct for transferring fluid, the duct presenting a reinforcing element, and wherein it implements laying at least one laid-in web on a forming cylinder that is optionally coated in elastomer material, and then covering the laid-in web(s) with an elastomer coating, and finally performing vulcanization.

Abstract: A decoupling sleeve for mounting in a motor vehicle exhaust pipe (LE), the sleeve (5) comprising in particular a mechanical portion (10) having two rigid end zones (15) for connection to the exhaust pipe (LE), and a sealing portion (11) that is thermally insulated from the inside by an insulation portion (12) and that extends over substantially the entire length of the mechanical portion (10) of the sleeve, the sleeve being characterized in that the sealing portion (11) comprises a central zone (22) formed by a layer or wall (24) made of a material that is flexible and that withstands temperature, and two rigid end zones (23) respectively connected to two end zones (15) of the mechanical portion (10), the sealing portion (11) forming a covering that is continuous, closed, and leakproof.

Abstract: A pipe system for supplying liquid fuel to a underground tank from a supply station and for transfer of said fuel from said tank to at least one dispensing station, said system comprising an assembly of flexible inner piping through which the fuel flows and an assembly of flexible outer piping enveloping the inner piping. The assembly of outer piping is continuous and envelops the inner piping along its entire length without interruption between the supply station and the underground tank and/or between said tank and the dispensing station and advantageously with the inner piping centered within the outer piping by means of concentric spacers perforated to allow gasoline leaking thereinto to flow therepast along the thus formed annular spacing, and preferably also with a branch bypass pipe to interconnect the annular spacing of the outlet conduit with the annular spacing of the inlet conduit to allow collection of gasoline leaking into such spacings into a common gravity fed cup.

Abstract: An expandable high-pressure flexible tube device for sealing piping in gas or oil fields. The device comprises two end pieces interconnected by a tubular element having an elastomeric material and sheets of coils round about its longitudinal axis at a small angle of about 10.degree. to 15.degree. relative thereto. The sheets comprise strong helical textile cords mutually separated by a predetermined spacing. A sheet having longitudinal textile cords extends over the whole length of the device, the helical cords and longitudinal cords being imbedded in the elastomeric material.

Abstract: Thermally insulating pipe lagging comprising a tube of compact and flexible elastomer type material designed to come into contact with the pipe to be insulated and shaped on its inside surface to have a helical groove which provides between its adjacent turns a coil filled with air or gas when the lagging is put into place so as to surround said pipe.