Patent ID: 6374863
Filing Date: 2002-04-23
Classification: F16L,G01M

Abstract:
A tube arrangement comprised of at least the following components, notablya flexible double wall tube comprising an inner tube (1) and an outer tube (2) forming an annular gap (3) that opens out into a widened cavity (43) in the vicinity of the tube ends; a connector (4) arranged on each end of the double casing tube, whereby the connector is comprised of a flange (42) and a fitting, whereby the fitting in turn comprises a first annular bead (6) located in the end zone of the outer tube (2) and the intermediate cavity (43), as well as in most cases a second annular bead (5), which is located in the end zone of the inner tube (1) and, furthermore, provided with a gap-shaped chamber (10), the latter being located between the flange (42) and the first annular bead (6) and surrounded by a chamber enclosure (11); and whereby, furthermore, the chamber (10) is connected with the intermediate cavity (43) and a drilled hole (12) is provided in the chamber enclosure (11); as well as a signal transmitter (40, 41) mounted on each tube end in the zone of the fitting and each signal transmitter is connected with the drilled hole (12) of the chamber enclosure (11) by means of a connector opening (13, 28); characterized in thatthe first signal transmitter (41) is an inflatable container (26) and the second signal transmitter (40) is a lamp with light sticks (35).