Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and has an annular sealing portion which includes a metal washer and a non-metal based washer fixed to the metal washer. The metal washer can carry support lugs to support the washers relative to the collar.

Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and includes an annular sealing portion which includes a first washer and a second washer fixed to the first washer by retaining lugs carried by the first washer.

Abstract: The device includes a sealing sleeve suitable for being disposed around the facing ends of two tubes and a clamping sleeve inside which the sealing sleeve extends. One of the elements constituted by the sealing sleeve and by the clamping sleeve has at least one retaining member suitable for co-operating in axial retention inside the clamping sleeve with a retaining surface of one of the tubes, which retaining surface is covered by the clamping sleeve.

Abstract: The clamping system comprises a collar that comprises a belt suitable for being clamped around clamping surfaces projecting from tubes. The collar carries a series of angularly distributed foldable fingers, each finger presenting a free operating end projecting axially beyond the first edge of the belt over a distance that is sufficient to enable it to be manipulated by hand. Starting from an initial position in which the fingers define a rest minimum diameter, the fingers are suitable for being folded manually and plastically towards the axis of the belt in order to define a folded-in minimum diameter that is less than said rest minimum diameter.

Abstract: A belt has a sealing ring disposed in an annular recess of the belt and two tightening lugs born by the ends of the belt. The edges of the recess form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends of the belt exhibit a sealing arrangement which includes lateral tabs, that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess such that each lateral tab includes a part of one of the wedging steps.

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 device includes a belt (10), a sealing ring (22) disposed in an annular recess (11) of the belt and two tightening lugs (12A, 12B) born by the ends (10A, 10B) of the belt. The edges of the recess (11) form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends (10A, 10B) of the belt exhibit a sealing arrangement which includes lateral tabs (28A, 28B), that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess (11) such that each lateral tab includes a part of one of the wedging steps.

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.

Abstract: A system for connecting a first tube (1) and a second tube, the system comprising a clamping collar (10) suitable for being tightened around the abutted ends of the two tubes, and a washer (28) secured to the clamping collar by securing means. The washer (28) presents a blocking element (44) configured to co-operate with a corresponding positioning member (48) of the first tube (1) so as to block the washer (28) against turning relative to the first tube (1).

Abstract: The device comprises a clamping collar (10) having a belt (12) suitable for being tightened around an article, and an outer sleeve (16) disposed around the belt, the sleeve being carried by the belt by means of a plurality of fastener tabs (18). Each fastener tab (18) is fastened to the sleeve (16) by a fastening zone (18A) and extends towards the axis (A) of the collar from said fastening zone until it reaches a pinch branch (18B) that is folded back under the belt in a configuration for being pinched between the inside surface of the belt and the article around which the belt is to be tightened.

Abstract: The system comprises a clamping collar having a clamping band suitable for being tightened around the abutting ends of the two tubes. The collar has a retaining tab that presents a fastener portion whereby said retaining tab is fastened to the band of the collar and that extends substantially axially towards an attachment portion of said retaining tab whereby said retaining tab is suitable for being attached to the first tube in the vicinity of its first end.

Abstract: The device includes a sealing sleeve suitable for being disposed around the facing ends of two tubes and a clamping sleeve inside which the sealing sleeve extends. One of the elements constituted by the sealing sleeve and by the clamping sleeve has at least one retaining member suitable for co-operating in axial retention inside the clamping sleeve with a retaining surface of one of the tubes, which retaining surface is covered by the clamping sleeve.

Abstract: The clamping system comprises a collar that comprises a belt suitable for being clamped around clamping surfaces projecting from tubes. The collar carries a series of angularly distributed foldable fingers, each finger presenting a free operating end projecting axially beyond the first edge of the belt over a distance that is sufficient to enable it to be manipulated by hand. Starting from an initial position in which the fingers define a rest minimum diameter, the fingers are suitable for being folded manually and plastically towards the axis of the belt in order to define a folded-in minimum diameter that is less than said rest minimum diameter.

Abstract: The collar has a looped metal strap (10) and a transverse buckle (12) retained at the first end of the strap and forming, on the outer side of the first end, a passage (13) through which the second end (10B) of the strap can be inserted over the first end, the second end of the strap as inserted in this way being suitable for being indented so as to co-operate with at least one of the elements including the transverse buckle (12) and the first end (10A) of the strap, in order to be retained so that it is prevented from moving in the direction in which the diameter of the collar increases. The buckle (12) carries at least one radially projecting outer tab (20, 22), the tab having the shape of a hook having a stem carrying a head under which a recess is formed.

Abstract: The clamping collar has a belt (10) looped back onto itself and having two ends provided with lugs (12, 14) that are upstanding and that are suitable for being brought closer together for tightening the collar. The collar has a spacer (22) having a land (24) extending between the ends (10A, 10B) of the belt (10), and a web (26) having at least a first tab that is upstanding relative to said land, which web extends between the lugs. The spacer is formed by a strip that is folded between a first fold at the junction between the first tab and the land (24) and a second fold situated at a first end of the land, the land having a first double- walled portion between the first and second folds.

Abstract: The clamping system comprises a collar (10) having a band (12) that has two flanks (13A, 13B), between which an inside trough (14) is defined that receives projecting clamping surfaces (1A, 2A) of two tubes (1, 2) to be assembled together. The system further comprises a plurality of individual retaining clips (20) distributed angularly around the first flank (13A), each clip having an inside branch (30) and an outside branch (32) facing each other, and between which the first flank is pinched, and a retaining portion (34) that, in the pre-attached state, is suitable for co-operating with the clamping surface (1A) of the first tube (1), one of the branches carrying a first bearing zone (36) that co-operates with a first bearing surface (13?A) of the collar that faces towards the axis (A) of said collar.

Abstract: A clamping collar comprising a looped metal strap (10), and a transverse buckle (12) retained at the first end of the strap. On the outer side, the buckle forms a passage (13) through which the second end of the strap (10B) is inserted. The buckle has an inner portion (14) that is disposed against the inner face of the first end of the strap and that has a blocking transverse edge (14A) that co-operates with a blocking transverse stop (16A) of the first end of the strap that defines a blocking setback (16). The second end (10B) of the strap has a retaining transverse stop (11) received in the blocking setback (16) and co-operating in abutment with a retaining edge (17A) of said blocking setback to retain the second end of the strap to prevent it from moving in the direction in which the diameter of the collar increases.

Abstract: A clamping collar comprising a looped metal strap (10), and a transverse buckle (12) retained at the first end of the strap. On the outer side, the buckle forms a passage (13) through which the second end of the strap (10B) is inserted. The buckle has an inner portion (14) that is disposed against the inner face of the first end of the strap and that has a blocking transverse edge (14A) that co-operates with a blocking transverse stop (16A) of the first end of the strap that defines a blocking setback (16). The second end (10B) of the strap has a retaining transverse stop (11) received in the blocking setback (16) and co-operating in abutment with a retaining edge (17A) of said blocking setback to retain the second end of the strap to prevent it from moving in the direction in which the diameter of the collar increases.

Abstract: The collar has a metal belt (10), a pair of projecting lugs (12, 14), a tightening rod (16) disposed in holes in the lugs, and tightening members (16A, 16B) co-operating with the rod and with bearing portions of the lugs. At least one of the lugs in the pair is a lug (14) having an extension, the bearing portion of which lug is formed in an extension (17) of the lug, which extension is folded over towards the rear of the lug, and is provided with a hole for the tightening rod. The extension (17) and the front portion (15) of the lug (14) having an extension are interconnected via a strip portion (20) forming a link loop defining an axial tunnel having its two axial ends open, the tunnel being shaped so that the angle of inclination between the extension (17) and the front portion (15) of the lug can change when the collar is tightened.

Abstract: A device includes a sealing ring that clamps around facing ends of two tubes, and that has first and second free ends, each of which is provided with a sealing arrangement suitable for coming into leaktight contact. First and second tightening lugs are fastened to the sealing ring in the vicinities of the first and the second free ends. The device has a bridge covering the sealing arrangements, the bridge being mounted to be stationary relative to the first free end of the ring and suitable for sliding relative to the second free end of the ring.