Abstract: A device at pipes for the connection of pipes is provided. The device has an outer ring with first and second free ends, and a tensioning device for converging and interconnection of the first and second free ends of the outer ring. An inner ring is arranged on the inside of the outer ring, wherein the inner ring includes a first and a second part, and at least one of the first and second parts having a progressively increasing profile height.

Abstract: A device at pipes for the connection of pipes is provided. The device has an outer ring with first and second free ends, and a tensioning device for converging and interconnection of the first and second free ends of the outer ring. An inner ring is arranged on the inside of the outer ring, wherein the inner ring includes a first and a second part, and at least one of the first and second parts having a progressively increasing profile height.

Abstract: A coupling device for holding together a coupling joint. The device may include two coupling halves, which may be articulated relative to one another. The coupling device may be arranged in its active position to engage portions of two interconnected pipes adjacent the coupling joint. One of the coupling halves may be formed with a catch, and the other half with a holding portion that cooperates with the catch. One of the halves may be provided with at least one protrusion and the other half with at least one recess. The at least one protrusion and the at least one recess may be arranged to cooperate and guide the catch into a position as to engage the holding portion.

Abstract: A coupling device (1) for holding together a coupling joint, said device comprising two coupling halves (6, 7), which are articulated relative to one another. The coupling device (1) arranged in its active position to engage portions, preferably radial protrusions (11), of two interconnected pipes (10) adjacent said coupling joint. One of the coupling halves (7, 7) is formed with a catch (2) and the other half (6, 7) with a holding portion (3) that cooperates with the catch (2). One of the halves (6, 7) is provided with at least one protrusion (4) and the other half (6, 7) with at least one recess (5), said protrusion (4) and said recess (5) arranged to co-operate to guide the catch (2) on one of the coupling halves (6, 7) into a position, wherein it engages the holding portion (3) on the other half (6, 7).