Abstract: The tightening device includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18?A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.

Abstract: The seal comprises first and a second coaxial sleeve disposed around each other while being retained relative to each other. Each sleeve is formed by a strip wound on itself whose ends are configured to cooperate together via a sealing arrangement by allowing a reduction in the diameter of the sleeve. The sealing arrangements of the two sleeves are angularly offset. The clamping device comprises a clamping collar with a belt inside which the seal is disposed while being retained axially relative to the collar.

Abstract: The tightening device comprises includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18?A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.