Abstract: A device for connecting a tube end section includes a tubular body defining a channel provided with a retainer including a hooking element for engaging an outer surface of the tube end section and an annular seal for gripping the outer surface of the tube end section. The device includes at least a first arm having an end arranged in the channel to be actuated by the tube end section downstream of the retainer to make a portion of the arm a connection control that which is detectable from outside the body.

Abstract: A connection device for connecting an end section of a tube comprises a tubular body defining a channel, a holding device for securing the tube end section within the channel in a sealed manner, and a bushing mounted in the channel to slide between a standby position in which the bushing is spaced apart from a stop at its recess within the channel and a recessed operating position in which the bushing presses against the stop. The bushing comprises, downstream from the holding device by reference to a direction of insertion of the end section of the tube into the body, at least one leg arranged to oppose the movement of the bushing toward the operating position and to be retracted by the end section of the tube when the bushing is engaged within the end section of the tube over a predetermined length.

Abstract: A coupling device includes a tubular body defining a channel having along an axis a first segment for receiving an endpiece and a second segment including an axially movable valve member which is spring-thrustable from the endpiece from a closed position, towards a disengaged position. The first segment includes a latch movably mounted to the housing and transversely movable via spring relative to the channel-between unlocked and locked positions. The latch includes a transverse bore enabling the endpiece to pass through the latch to push against the valve member, and first and second steps projecting into the bore in axially offset positions such that, when the latch is locked, the first step retains the endpiece in a pushed-in position holding the valve member disengaged and when the latch is unlocked, the second step retains the endpiece in an intermediate position leaving the valve member closed to enable endpiece purging.

Abstract: A coupling device for a fluid transport tube (100) having an end provided with an internal chamfer (101), the device comprising a body (1) including a cylindrical wall (2) defining a channel (3) having an end segment provided with means for securing the tube end thereto in leaktight manner, these means including an elastically deformable annular sealing element (6) comprising a support ring (61) having an axially projecting first face from which there extends a tubular portion (62) having a free end (63) arranged to bear against the internal chamfer (101) of the tube end (100) in order to be forcibly engaged in the tube end while the tube is being inserted into the end segment.

Abstract: A coupling device for a tube having an end portion provided with an outer chamfer, and an associated method. The coupling device includes a tubular body provided internally with an annular sealing element and with an attachment member for retaining the end portion of the tube in leak-tight manner in the body. The device further includes at least one retractable abutment arranged so as to oppose insertion into the body of a tube end portion that is not chamfered but allow insertion of a tube that is chamfered, the chamfer of the tube end portion forming a cam for causing the abutment to retract while the tube is being inserted into the body.

Abstract: A connection device for connecting together electrically-conductive tubes, the device comprising a body (1) defining a channel (2) having two end segments, each arranged to receive an end of one of the tubes. Each end segment (3) is provided with an annular recess (5) provided with a flank (8) facing towards the inlet of said end segment (3). The device comprises at least one elastically deformable electrical conductor element (9) having ends bearing against said flanks (8) and an intermediate portion (13) extending into the channel (2) in order to provide electrical continuity between the two tube ends.

Abstract: A connection device comprising a body defining a channel having at least one tube end reception segment. Centering means for centering the tube end are arranged in a zone extending between the outer surface of the tube, a facing surface of the segment, and the sealing element. The centering means include positioning elements that are arranged to co-operate with a surface of the segment and with an outer surface of the tube and to define at least one sweeping duct for sweeping the zone, the duct having at least one inlet in the vicinity of which there extends at least one deflector arranged to insert, into the sweeping duct, fluid diverted from the flow traveling through the device, and at least one outlet for returning the fluid that has passed through the sweeping duct back to the flow.

Abstract: A coupling device for a fluid transport tube (100) having an end provided with an internal chamfer (101), the device comprising a body (1) including a cylindrical wall (2) defining a channel (3) having an end segment provided with means for securing the tube end thereto in leaktight manner, these means including an elastically deformable annular sealing element (6) comprising a support ring (61) having an axially projecting first face from which there extends a tubular portion (62) having a free end (63) arranged to bear against the internal chamfer (101) of the tube end (100) in order to be forcibly engaged in the tube end while the tube is being inserted into the end segment.

Abstract: Device for the connection of a duct including a tubular body provided with an axial stop for a cylindrical sleeve that defines a tubular accommodating housing and has an end which delimits an annular inlet to the housing that is radially deformable elastically. The housing includes a maintaining member for maintaining the end of the sleeve in a deformed state, the member being designed to be movable between an active position in which it maintains the end in the deformed state and an inactive position in which it is carried by the duct during the introduction thereof and allows the end to return to its rest state.

Abstract: A quick coupling device of the cartridge type, the device comprising a tubular body defining a channel, a retaining washer for retaining the tube in the device, a tubular disconnection pusher that is slidably mounted in the channel, and an anchor for anchoring the coupling device in the socket. The body has one end provided with a retractable ring that projects axially from the end in order to carry internally a sealing member of the coupling device and in order to be suitable for being returned against the body in order to release the sealing member in the socket. The retaining washer is arranged in the retractable ring between the body and the sealing member.

Abstract: A connection device for connecting together electrically-conductive tubes, the device comprising a body (1) defining a channel (2) having two end segments, each arranged to receive an end of one of the tubes. Each end segment (3) is provided with an annular recess (5) provided with a flank (8) facing towards the inlet of said end segment (3). The device comprises at least one elastically deformable electrical conductor element (9) having ends bearing against said flanks (8) and an intermediate portion (13) extending into the channel (2) in order to provide electrical continuity between the two tube ends.

Abstract: An annular sealing gasket (7) for a fluid flow coupling device (1), the gasket (7) having side faces (8, 9), an outer circumference (10) defined by an outer bead (11), and an inner circumference (13) defined by an inner bead (14) that joins at least one of the side faces (8, 9) via a frustoconical surface (15, 16) that is not tangential to the inner bead (14). A coupling device (1) including such an annular sealing gasket (7).

Abstract: A device (1) for connecting together tubes (101, 102) for protecting an optical fiber cable (103), the device comprising a tubular body (2) defining a channel (3) having a first housing (4.1) and a second housing (4.2) each arranged to receive one of the tubes and provided with means (5) for sealed retention of said tube, and an annular step (9) extending between the housings to form an abutment against penetration of the tubes into the housings, an annular sealing element (10) being arranged in the first housing beside a flank of the step and being arranged to be taken, under the effect of axial compression exerted by the tube, from a first state in which the sealing element defines a section through which the cable can pass freely to a second state in which the sealing element defines a section less than a section of the cable. A segment, of an optical transmission circuit including such a connection device.

Abstract: An insertion endpiece for connecting a part carrying the endpiece with another part provided with a bore for receiving the endpiece. The endpiece is provided with an outer groove in which there is received a cylindrical ring, that is free to turn and to slide. The ring has teeth projecting from its outside surface, the ends of the teeth being contained, in the free state, in a substantially cylindrical envelope of diameter that is greater than the diameter of the bore. The ring is received in the groove while being free to turn and to slide. The axial width (L) of the groove is greater than the axial width (L1) of the ring. When the ring is in abutment against a flank of the groove, the teeth are in register with a secondary groove formed in the bottom of the groove receiving the ring, and into which secondary groove the teeth are capable of penetrating elastically.

Abstract: A connection device comprising a body defining a channel having at least one tube end reception segment. Centering means for centering the tube end are arranged in a zone extending between the outer surface of the tube, a facing surface of the segment, and the sealing element. The centering means include positioning elements that are arranged to co-operate with a surface of the segment and with an outer surface of the tube and to define at least one sweeping duct for sweeping the zone, the duct having at least one inlet in the vicinity of which there extends at least one deflector arranged to insert, into the sweeping duct, fluid diverted from the flow traveling through the device, and at least one outlet for returning the fluid that has passed through the sweeping duct back to the flow.

Abstract: Device for the connection of a duct including a tubular body provided with an axial stop for a cylindrical sleeve that defines a tubular accommodating housing and has an end which delimits an annular inlet to the housing that is radially deformable elastically. The housing includes a maintaining member for maintaining the end of the sleeve in a deformed state, the member being designed to be movable between an active position in which it maintains the end in the deformed state and an inactive position in which it is carried by the duct during the introduction thereof and allows the end to return to its rest state.

Abstract: Device for connecting a tube to a circuit element, including a cartridge type tubular body provided externally with a washer for anchoring the body in a well of the circuit element and provided internally with a retainer for the tube, characterized in that the anchor washer is mounted on an end portion of the tubular body designed to lie at the level of the opening of the well when the connecting device is in use, the end portion being elastically deformable between a deformed state enabling the washer to be placed on the body and a rest state for retaining the washer on the body.

Abstract: A coupling element of a fluid circuit. The coupling element includes a tubular body externally provided with an annular shoulder in which a groove is provided having an end wall flanked by an outer side and by an inner side so as to receive an annular seal designed to bear against a surface surrounding an inlet orifice of a channel of a member to which the element is designed to be coupled. The body defines at least one passage for bringing the fluid into the groove so as to push the seal back against the outer surface of the groove, and against the surface surrounding the inlet orifice of the channel.

Abstract: A coupling device including a tubular body defining a channel having a reception segment for receiving a pipe end, the reception segment being provided with a locking member for locking the pipe end in the reception segment, a sealing member for fitting tightly against an outside surface of the pipe end, a guide for guiding the pipe end in the reception segment, and an abutment for stopping the pipe end being pushed into the reception segment, wherein the sealing member is placed in a groove formed between the abutment and the guide, and the locking member is placed between the guide and an inlet to the reception segment.

Abstract: A device (1) for connecting together tubes (101, 102) for protecting an optical fiber cable (103), the device comprising a tubular body (2) defining a channel (3) having a first housing (4.1) and a second housing (4.2) each arranged to receive one of the tubes and provided with means (5) for sealed retention of said tube, and an annular step (9) extending between the housings to form an abutment against penetration of the tubes into the housings, an annular sealing element (10) being arranged in the first housing beside a flank of the step and being arranged to be taken, under the effect of axial compression exerted by the tube, from a first state in which the sealing element defines a section through which the cable can pass freely to a second state in which the sealing element defines a section less than a section of the cable. A segment, of an optical transmission circuit including such a connection device.