A device for winding a reinforcing strip onto a repair length on either side of a portion to be repaired of a pipe, including: a carriage bearing a reel holder and a reel, means for rotating the carriage around the pipe and for translating same along the longitudinal axis of the pipe so that the strip is wound around the pipe in the form of a helix, means for reversing the direction of translation movement of the carriage so that, at each change of direction, the carriage moves in a direction opposite to the previous one and a layer of reinforcing strip is wound around the pipe, overlapping the previous layer. The means for translating the carriage include a conveying chain and the reversing means are actuated automatically without the intervention of an operator.

A tape winding apparatus (1) for winding a tape around a cutback between two factory coated, welded pipes to form a field joint coating, the apparatus comprising a housing (2) having first and second ends and adapted to be mounted over or around the cutback, a tape cassette (62) rotatably mounted within the housing and means (120, 44, 80) for linearly driving the cassette through the housing from a first position adjacent a first end of the housing to a second position adjacent the second end of the housing, a heat source (70) mounted on the cassette for directing heat towards one end of the cutback and the tape as it is wound onto the pipe, and further comprising an additional heat source (150) mounted within the housing adjacent the second end of the housing for directing heat towards the other end of the cutback.

A tape winding apparatus (1) for winding a tape around a cutback between two factory coated, welded pipes to form a field joint coating, the apparatus comprising a housing (2) having first and second ends and adapted to be mounted over or around the cutback, a tape cassette (62) rotatably mounted within the housing and means (120, 44, 80) for linearly driving the cassette through the housing from a first position adjacent a first end of the housing to a second position adjacent the second end of the housing, a heat source (70) mounted on the cassette for directing heat towards one end of the cutback and the tape as it is wound onto the pipe, and further comprising an additional heat source (150) mounted within the housing adjacent the second end of the housing for directing heat towards the other end of the cutback.

A process for producing a thermoplastic composite pipe, where the process includes: a) providing a tubular liner having a wall containing a thermoplastic polymer A in the region of the outer surface; b) providing a tape containing reinforcing fibres in a matrix containing a thermoplastic polymer B, where polymer A and polymer B are different; c) applying a film or a composite which is produced in d) and is composed of a film and a tape provided in step b) to the tubular liner, with melting of the outer surface of the liner and of the contact surface of the film either beforehand, simultaneously or thereafter, d) applying the tape provided in b) to the outer surface of the film, with melting of the outer surface of the film applied and of the contact surface of the tape either beforehand, simultaneously or thereafter,
where the surface of the film which is brought into contact with the liner contains a moulding compound containing polymer A to an extent of at least 30% by weight, and the opposite surface of the film contains a moulding compound containing polymer B to an extent of at least 30% by weight.

A machine configured to repair a pipeline extending along a longitudinal axis determined in a body of water, the machine comprising: a frame configured to be clamped to the pipeline; an applicator configured to apply material along an outer surface of the pipeline and comprising a support body shaped as an open ring and configured to be arranged about the pipeline; and an actuating assembly, which is supported by the frame, is arranged between the frame and the applicator, has a distal end configured to support the applicator in a cantilevered fashion and in a rotatable manner, and is configured to displace the applicator along the longitudinal axis and/or to rotate the applicator about the longitudinal axis.

A machine configured to repair a pipeline extending along a longitudinal axis determined in a body of water, the machine comprising: a frame configured to be clamped to the pipeline; an applicator configured to apply material along an outer surface of the pipeline and comprising a support body shaped as an open ring and configured to be arranged about the pipeline; and an actuating assembly, which is supported by the frame, is arranged between the frame and the applicator, has a distal end configured to support the applicator in a cantilevered fashion and in a rotatable manner, and is configured to displace the applicator along the longitudinal axis and/or to rotate the applicator about the longitudinal axis.

A non-compliant fiber-reinforced medical balloon comprises a first fiber layer and a second fiber layer embedded in a continuous matrix of thermally-weldable polymer material defining a barrel wall, cone walls and neck walls. The fibers of the first fiber layer have a pattern of different lengths and are divisible into a first group and a second group based on length. The length of the fibers of the second group varies progressively in accordance to their proximity to the fibers of the first group; the fibers of the second group closest to the fibers of the first group being longer than the fibers of the second group further from the fibers of the first group. The fiber of the second fiber layer winds circumferentially around the longitudinal axis of the balloon substantially over the entire length of the balloon.

A non-compliant fiber-reinforced medical balloon comprises a first fiber layer and a second fiber layer embedded in a continuous matrix of thermally-weldable polymer material defining a barrel wall, cone walls and neck walls. The fibers of the first fiber layer have a pattern of different lengths and are divisible into a first group and a second group based on length. The length of the fibers of the second group varies progressively in accordance to their proximity to the fibers of the first group; the fibers of the second group closest to the fibers of the first group being longer than the fibers of the second group further from the fibers of the first group. The fiber of the second fiber layer winds circumferentially around the longitudinal axis of the balloon substantially over the entire length of the balloon.

The present disclosure provides an anti-corrosive wrapping for a metal pipe (10) (or a metal pipe fitting). The wrapping has an innerwrap (14) including glass fibres which carries a viscoelastic thermoplastic corrosion protection material (13). The wrapping has an outerwrap (16) including glass fibres which is impregnated with an adhesive. The innerwrap (14) is wrappable around the metal pipe (10) with the viscoelastic thermoplastic corrosion protection material (13) carried by the innerwrap (14) engaging and covering an external surface of the metal pipe (10). The outerwrap (16) is wrapped around the innerwrap (13) and the adhesive impregnated in the outerwrap (16) penetrates the innerwrap (13) and thereby adheres the outerwrap (16) to the innerwrap (13).

The present disclosure provides an anti-corrosive wrapping for a metal pipe (10) (or a metal pipe fitting). The wrapping has an innerwrap (14) including glass fibres which carries a viscoelastic thermoplastic corrosion protection material (13). The wrapping has an outerwrap (16) including glass fibres which is impregnated with an adhesive. The innerwrap (14) is wrappable around the metal pipe (10) with the viscoelastic thermoplastic corrosion protection material (13) carried by the innerwrap (14) engaging and covering an external surface of the metal pipe (10). The outerwrap (16) is wrapped around the innerwrap (13) and the adhesive impregnated in the outerwrap (16) penetrates the innerwrap (13) and thereby adheres the outerwrap (16) to the innerwrap (13).