Abstract: A quick connect/disconnect pipe coupling comprising a female receptacle member, a locking collar adapted to be slidably engaged over one end of the female receptacle member, and a male plug member adapted to be inserted into the collar engaged female receptacle member to form a tight connection therebetween. The collar includes radial locking flanges for engaging cooperating annular ridges on the plug and receptacle members, respectively. Slidable movement of the collar toward the receptacle member disengages the locking flange on the collar from the annular ridge on the male plug member thereby enabling a quick disconnect of the female receptacle member and collar from the male plug member.

Abstract: A connector assembly connects a hub connector to a wellhead housing by utilizing a collet. The collet has an upper internal projection that engages the hub connector and a lower internal projection that engages the flange on the wellhead housing. An actuator ring moves the collet from an unlocked to a locked position, the actuator ring moving axially. A drive nut, when rotated, will move the actuator ring downward. Load screws extending through the drive nut force the actuator ring further downward after the drive nut has reached its lower position. Release pins extending through the actuator ring, when rotated inward, will pry against a release surface to move the actuator ring upward relative to the drive nut.

Abstract: A sealed connection for two cylindrical members defining an axis, and in combination with the members comprising at least two semi-cylindrical connector sections sized to fit about the members, the sections forming multiple projections that extend radially inwardly and generally annularly about the axis, the projections spaced apart in an axial direction on each of the sections in meshing interengagement with corresponding projections on the members that project radially outwardly, with the sections bridging the joint between the members, whereby the members are held against relative axial separation, the projections in the sections having annular extents about the axis; generally annular retaining ring structure extending annularly about the sections and having wedging engagement therewith to block outward movement of the sections that would tend to relieve such meshing interengagement; there being sealing structure at the joint between the members and compressed by the members when the sections are fully as

Abstract: A hose coupling wherein a sleeve is made of one piece with axially parallel elastic arms engageable with an external rib of a pipe which is inserted into one end portion of the sleeve. The other end portion of the sleeve is sealingly connected with and surrounds an end of a hose, and the sleeve is surrounded by a turnable or axially movable locking ring having prongs which are caused to bear against the adjacent arms so that the arms are urged against the rib. The sleeve has one or more elastic tongues which can snap behind the adjacent portion or portions of the locking ring to hold the ring in the operative position and to indicate that the ring is maintained in the operative position. The arms have internal grooves for reception of adjacent portions of the rib.

Abstract: A plug coupling for providing a pressure-sealed connection to a device having a cylindrical connector. The coupling has a tube-like support element having a front portion provided with a sealing ring and a rear portion formed as an inlet part. Elongated clamping jaws are linked to the support element and extend in a generally axial direction. The clamping jaws are arranged concentrically around a longitudinal axis of the support element and have free ends radially displaceable. A sleeve surrounds the support element and is shiftable in longitudinal direction and has a front end portion provided with a rim for engaging peripheral surfaces of the clamping jaws for locking them in an engaged position. The sleeve is urged into the engaged position either by a spring or by pressure. An arresting device blocks the sleeve to prevent this engagement of the plug coupling when fluid pressure is applied thereto.

Abstract: A pipe connector comprises a pipe connector body, said pipe connector body including: a first portion of a diametrically larger inner cross section adjacent a mouth of said connector and a second portion of a diametrically smaller inner cross section extending inwardly from said first portion; an O-ring inserted in said second portion for establishing airtight seal between said second portion and the leading end of an inserted pipe; a spring receiver and a stop ring secured in said first portion; a circular groove formed between said spring receiver and a stop ring in said first portion; an annular plate spring having a plurality of inwardly extending resilient pawls that may engage with the groove formed on the outer surface of the pipe inserted, for preventing the inserted pipe from slipping off the connector; and a push member slidably inserted in said stop ring, said push member having a rear end extending from the mouth of the pipe connector body, and a leading end which, when pushed in for disconnection

Abstract: A multiline fluid distribution system having an articulated fluid loading arm, which is swingable in vertical and horizontal planes, for selectively coupling the swingable fluid outlet end of the loading arm to any one of a plurality of parallel fluid transfer lines extending horizontally in a honey comb-like array. The fluid outlet end of the loading arm is supported on and transported by a carriage to the designated fluid transfer line for coupling therewith.

Abstract: A coupling apparatus is provided for quick coupling of surface pumping equipment to a cylindrical member. The cylindrical member is engaged by dogs which are urged into locking position about the cylindrical member.

Abstract: A fluid line connector fitting is provided which has first and second generally tubular members, one end of the second member being slidably receivable within the first member. Releasable locking means are also provided to prevent withdrawal of the second member from the first member. The releasable locking means are releasable by the action of a release means which reacts to longitudinal movement of the second member toward the first member.

Abstract: Airhose coupling device including end fittings and quick disconnect release switches having protection for preventing damage to surfaces coming in contact therewith.

Abstract: A quick action coupling including a coupling body and a coupling nipple connectable with either of a pair of hoses or the like, the coupling body comprising a coupling sleeve in which the coupling nipple is introducible to a sealing position. In the wall of the coupling sleeve there are formed radially extending, through openings in which locking balls are radially movable. At the outer surface of the coupling sleeve there is provided a locking sleeve which is axially movable to lock and release the locking balls. The through openings in which the locking balls are positioned are slot-shaped to allow that the locking balls are displaced away from the position in which they are locked by the locking sleeve without requiring manipulation of the locking sleeve.

Abstract: A check valve includes first and second valve body parts. The first valve body part defines a protruding neck and the second valve body part defines a receiving flange sized to received the protruding neck in a telescoping manner. A snap fit retaining mechanism includes a set of hooks on the second valve body part and a hook receiving groove on the first valve body part. The hooks are shaped to engage the groove to hold the first and second valve body parts together as an assembly, with the neck received in the flange. A central passageway extends through the first and second valve body parts, and a valve seat is defined around the central passageway. A valve pin is mounted in the central passageway to releasably seal against the valve seat.

Abstract: A coupling device for releasably connecting a corrugated member to the coupling device, has a radially outer housing, a radially inner operating sleeve and at least one locking claw forming part of the sleeve that is axially movable within the outer housing. The locking claw is accessible through an opening in the outer housing wall and its claw engages a corrugation ridge when a corrugated member is inserted into the operating sleeve. In the locked position a flange of the operating sleeve is axially spaced from the housing, whereby the claw rests against an edge of the opening and cannot be tilted radially outwardly about its hinge. In an unlockable position the flange of the sleeve contacts the housing and the claw can clear the opening edge to permit withdrawal of a corrugated member.

Abstract: A new capture device comprising a plurality of axially extending tangs on one of a pair of complementary fittings in a fluid coupling and a polygonal circumferential groove on the other fitting adapted to engage the tangs. Upon rotational engagement of the fittings the tangs engage the polygonal groove and "ratchet" about the junctures between the flats until the coupling is tight. Although not limited to particular materials, the new capture device is particularly suited to very tough, strong and hard materials such as titanium, stainless steel and inconel alloy because the effectiveness of the capture device is dependent upon the stiffness of the tangs. The new device prevents vibrational disassembly of the complementary fittings without preventing disassembly solely with wrenches. Moreover, the complementary fittings and capture device can be repeatedly assembled and disassembled without any damage to the threads or capture device.

Abstract: A pipe coupling for a corrugated pipe, comprises a pipe coupling main body including a cylindircal portion having a small-diameter through hole, a pipe coupling main cylindrical portion having a large-diameter through hole, a connecting stepped portion formed between the small- and large-diameter through holes and having a circumferential groove, a stopper formed in the connecting stepped portion, for locking an end portion of a corrugated pipe, and a seal ring fitted in the circumferential groove, an inner cylinder including a through hole having a diameter substantially equal to an outer diameter of the corrugated pipe and an annular groove having a tapered surface and formed in an inner wall of a deep portion of the through hole, the inner cylinder being slidably and rotatably fitted in the large-diameter through hole of the pipe coupling main body, and a metal ring arranged in the circumferential groove of the inner cylinder and expandable in a circumferential direction thereof.

Abstract: A connector for a conduit such as a hose or a rigid pipe forming part of a high pressure hydraulic circuit having. A female part is provided in which is inserted the free end of the pipe having a peripheral rim or flange to be connected and a male part which cooperates with the female part in order to immobilize the free end of the pipe in the female part. The female part of the connector also has a body which locates the free end of the pipe being connected. The male part is provided with a clip-in locking device which includes retractable members located between a shoulder formed in the body and the rear face of the peripheral rim or flange formed in the pipe, and oriented towards the opening the latter component and designed to prevent the pipe from being released from the female part.

Abstract: A lockout device (10) for a male hose fitting (54) has a body (14) with a bore (22) extending therethrough. A moveable sleeve member (32) is mounted on the body. A plurality of holding balls (30) extend into the bore. In a first position of the sleeve, the balls fully extend into the bore, and in a second position of the sleeve the balls are enabled to move radially outward. A hole (50) in the body enables a loop (52) of a conventional lock (12) to extend through the body. When the lock is installed the sleeve is held in the first position. With the lock removed the sleeve may be moved to the second position and the male hose fitting inserted into the bore. Once the hose fitting is inserted, the sleeve member is returned to the first position and the lock extended through the body. The male hose fitting cannot be removed from the device or connected to a source of compressed air as long as the lock remains installed on the lockout device.

Abstract: The auxiliary device is in the form of a disk-shaped body having a front face, a rear face and lateral side wall surfaces. A cylindrical bore hole extends through the body from its front face to its rear face and it has a diameter that is slightly smaller than the outer diameter of the retractable spring-loaded sleeve of an air hose quick-disconnect coupling so that the auxiliary device may be manually slid on over the tubular sleeve and frictionally held thereto. The diameter of the front face of the disk-shaped body is sufficiently large enough that the hand of the person connecting or disconnecting the end of an air hose to the coupling can push his hand against the front face to move the spring loaded sleeve rearwardly while engaging or disengaging the end of the air hose.

Abstract: A quick disconnect coupler comprising a coupler body, a latching mechanism for holding the coupler body to another component, a telescoping sleeve moveable axially on the coupler body to engage and disengage the latching mechanism, and a sleeve operator assembly for moving the telescoping sleeve axially between engaged and disengaged positions. The sleeve operator assembly includes a yoke in the form of a ring collar having opposite ends and opposite side portions straddling the telescoping sleeve. Opposite side portions of the yoke are pivotally connected to respective sides of the telescoping sleeve at diametrically opposite connection points. A handle is provided at one end of the yoke, and a linkage connects the other end of the yoke to the coupler body.

Abstract: A quick connect/disconnect coupling for hydraulic or pneumatic conduits has a male half (4) and a female half (2) each of said halves having fluid bores therethrough. Split ring segments 7 are arranged in ring within the female coupling half and are movable therein. The ring segments are biased towards the centerline of the coupling by an elastic o-ring (9). When the coupling halves are engaged, the ring segments are positioned between a radially extending shoulder (6) on the male coupling half and a radially extending shoulder (21) on the female coupling half. In the engaged and locked position of the coupling halves, the ring segments in blocking relation with the shoulders holds the coupling halves together. The ring segments are in abutting relation with adjacent ring segments on either side when the coupling halves are in the engaged in locked position. The male coupling half includes a tubular releasing member (10) slidably mounted thereon.

Abstract: A quick connect fitting in which tubing can be inserted into a pre-assembled fitting where it will become sealed and locked against pull-out. A main fitting body has an open-ended recess in which is located a movable piston to seal against the body and an inserted tube. The piston wedges over a conical extension on a sealing gland retained by a screw-on cap. The sealing gland has rearward, circumferentially spaced fingers radially movable. An axially shiftable ring, in one position, allows the fingers to expand to receive the tube, and, when shifted to a second position, moves the finger to engage the extension surface of the tube to lock against withdrawal.

Abstract: A tieback connector for use in connecting the lower end of a well conductor to the upper end of a tubular wellhead member by a radially movable split locking ring carried by the tieback connector for locking engagement within grooves formed in the bore of the wellhead member.

Abstract: A coupling for use with an insert. The coupling including a latching sleeve unbalanced under pressure and a release sleeve for venting pressure.

Abstract: A quick-release plug-in coupling device includes a female member to be connected to one hose and including a body, a valve seat internally of the body, and at least one opening through the body. A male member to be connected to another hose includes a body sealingly fittable into the body of the female member, the male member body having formed therein at least one recess. A valve member is positioned within the female member for movement between closed and opened positions relative to the valve seat. At least one actuating member is positioned outwardly of the female member and has an integrally formed elastic member extending inwardly through the opening in the body of the female member. The elastic member has an inner end fittable into the recess in the body of the male member. The actuating member is selectively manually movable axially of the female member between locking and release positions.

Abstract: There is disclosed a subsea wellhead connector comprised of a lower tubular member mounted on the upper end of a lower wellhead member, and an upper tubular member suspended from an upper wellhead member for lowering into end-to-end connection with the lower tubular member. Locking teeth are formed about the ends of the tubular members, and circumferentially spaced locking segments are carried by the upper tubular member for movement radially into or out of locking engagement with the grooves about the upper and lower tubular members. The locking segments are moved inwardly to locking position by means of a cam ring which surrounds them, and are withdrawn from locking position by spreader dogs carried by the cam ring and extending between the ends of adjacent locking segments.

Abstract: A conductor tieback connector is connected to the lower end of a string of risers and has a downwardly extending funnel that fits over a wellhead. A two-piece internal floating bushing is moved within the interior of the wellhead from an upper position to a lower engaged postion. Locking dogs are pushed outward by an outer ring which is rotated by a running tool. These locking dogs engage grooves in the wellhead. The locking dogs and the wellhead grooves have inclined load shoulders. The dimensions between the abutting surfaces of the wellhead connector and the load shoulders are selected so as to create a preload force.

Abstract: Apparatus for use in remotely connecting a plurality of lines for carrying fluid terminating in a first hub to a plurality of lines for carrying fluid terminating in a second hub, the hubs being initially arranged with their axes approximately coaxial but spaced apart, comprises a plurality of first engagement members fixed relative to the first hub and comprising generally conical receptor elements forming end portions of elongate tubular members arranged around the first hub with their axes generally parallel to that of the first hub, and a plurality of second engagement members comprising generally conical elements forming end portions of elongate members arranged around the second hub with their axes generally parallel to that of the second hub.

Abstract: A quick connect connector is disclosed. The connector includes a connector housing having a first and a second ends. A first chamber is provided in the housing between the first and the second ends for receiving a sealing member therein. A retaining collar is slidably mounted on the housing between the first and second ends of the housing and includes at least one radially deflectable locking portion thereon. The radially deflectable retaining portion is adapted to engagingly contact a flange portion of a tubing member inserted in the housing to retain the tubing member in a locked position relative to and sealingly engaging the sealing member between the retaining portion and the first end of the housing. The locking portion is received within a groove of the housing to lock the collar to the housing and secure the connection. The tubing connector is resiliently urged out from the housing and against the engaged retaining portion of the housing.

Abstract: A device is disclosed for controlling the flow of refrigerant into a system and for controlling the application of a vacuum to evacuate the system via the same device prior to charging. The device is configured for controlling flow at the charging port to avoid loss of refrigerant from connecting lines. Piston operated valving internally mounted in a valve body controls the communication of refrigerant and vacuum sources to an outlet opening receiving a tubular charging port of the system to be charged. A pressure operated clamping pistion actuates gripping rings to secure the device to the charging port prior to both evacuation and charging and also acts to open the charging port valving as the fitting is clamped and sealed thereto. The outlet opening is defined by an end cap which is detachable from the fitting to allow use with different configuration charging ports by replacement with another end cap.

Abstract: A well structure which includes a well housing having an upwardly facing internal shoulder and an internal recess below the shoulder, a tieback adapted to be landed on said housing internal shoulder and having an upper internal surface and a smaller lower internal surface with a shoulder therebetween, an actuator sleeve having an upper outer portion fitting closely within the upper internal surface of the tieback, a lower outer portion fitting closely with the lower internal surface of said tieback, a downwardly facing external shoulder between said lower and upper outer portions and a lower tapered surface tapering downwardly and inwardly, latch elements having upper and outer tapered surfaces mating with the lower tapered surface on said actuator sleeve, and a pressure compensating material position in the annulus between said shoulders and the upper internal surface of said tieback and the lower outer portion of said actuator sleeve so that downward movement of said actuator sleeve within said tieback is n

Abstract: A wellhead connector for connecting a riser to a wellhead in a subsea well remains connected even though hydraulic pressure is removed. The wellhead connector has a housing which slides over the wellhead, and dogs are carried by the housing for radial movement into engagement with grooves formed on the exterior of the wellhead. An axially moveable cam ring moves downward to push the dogs radially inward to a locked position. A wedge ring is carried on the inner side of the cam ring. The wedge ring locates between the dogs and the cam ring. The wedge ring has sides that are conical and converge in a downward direction. The wedge ring locks the cam ring in a lower position. A release ring carried by a piston shaft will move the wedge ring upward relative to the cam ring when the piston shaft is moving to the released position, to release the cam ring.

Abstract: An improved tubular connector having a first tubular member with an external hub, an internal sealing surface and an external rib spaced from the hub, a second tubular member with an external hub, an internal sealing surface and an external dividing rib, a sleeve surrounding and slidable on the second tubular member and having an enlarged end extending beyond the end of the tub of the second tubular member in the retracted position of the sleeve, the sleeve having an internal rib engaging the exterior of the second tubular member and an internal tapered surface, a plurality of latching fingers supported between the interior of the sleeve and the exterior of the second tubular member, means for delivering fluid pressure to the space between the sleeve and the exterior of the second tubular member for movement of the sleeve in the direction toward the hub end of the second tubular member, means for limiting the movement of the latching members in the direction of movement of the sleeve whereby engagement of the

Abstract: A connector for tying back a wellhead (10) to a floating platform rigidly attaches to the wellhead housing (12). It is engaged with the casing hanger (14) through a bellows (86) arrangement. Strain cycling of the connection is reduced while thermal expansion and manufacturing tolerance are readily tolerated.

Abstract: Apparatus and method for reducing the local high tensile stress concentrations of a latch of a connector whereby the latch is loaded during make-up such that it is placed in bending, to the extent that the induced bending produces a compressive stress in the area of high tensile stress concentration. When this stress is added to normal stresses, the resultant tensile stress is reduced to an acceptable level.

Abstract: The present invention is directed to a removable coupling watertight joint. The joint consists of a male piece which is inserted within a female piece. Both the male and female pieces may be attached to flexible pipes or to other fluid flow devices. Integrally molded onto the female piece are two flexible clasping tongues which deflect inward to engage the male piece.Also integrally molded onto the female piece are means for biasing a joint coupling bushing in a locked position. The joint coupling bushing surrounds the female piece and has internal projections which cause the elastic clasping tonques to deflect inward and engage the male piece. In its locked position, the joint coupling bushing deflects the flexible clasping tongues inward thereby engaging the male piece.

Abstract: The quick-coupling connector assembly for pipes, piles or the like is constituted of a pair of half-couplers, male and female respectively, capable of being connected to the ends of the pipe to be joined. The male half-coupler possess, on its external surface, an annular raised profile capable of being coupled with a corresponding annular raised profile present on the internal surface of the female half-coupler close to its end, the female half-coupler being equipped, starting from its end, wih axial slits defining, along its entire surface, a plurality of outwardly elastically flexible lamellar elements, adapted to permit the fitting of the female half-coupler over the male half-coupler and the coupling together of the respective raised annular profiles. An axially movable ring is also provided, capable of being fitted over the female half-coupler and of being blocked in position for preventing radial deformations at the end of zone of the female half-coupler itself.

Abstract: An improved locking element for a quick-connect coupling is designed for use in joining together tubular fluid conduits. The locking element comprises an annular segment and a plurality of annularly distributed resilient curled fingers which is sized to fit inside an annular cage mounted on one end of an inner coupling. The locking element of the inner coupling engages the flared end of an outer coupling when the couplings are telescopically fitted together.

Abstract: A quick connect-disconnect coupling for fluid lines has a tubular female member, a sleeve member which encircles and is moveable relative to that female member, a tubular plug which telescopes into one end of that female member, locking surfaces on that sleeve member and on that female member which prevent relative movement between that sleeve member and that female member until the tubular plug has been telescoped into that one end of that female member, and interacting surfaces on that female member and on that sleeve member which require progressive relative movement of that sleeve member and of that female member from a normal, plug-unlocked, fluid-off position to a plug-locked, fluid-on position and then back to that normal plug-unlocked, fluid-off position.

Abstract: An improved annular seal between tubular members in a subsea wellhead having an annular seal member with a U shape in section with the opening facing upwardly and two interengaged annular wedges for energizing the sealing surfaces of the inner and outer portions of the seal member at different levels. The interengagement of the wedges includes sufficient play to provide proper energizing of both inner and outer sealing surfaces at the same time. Further, the inner sealing surface is positioned at a much higher level than the outer sealing surface and close to the upper end of the inner member in which it is to seal to minimize the setting force for the inner sleeve and to minimize the amount of drag the seal will incur when retrieved. Also, the location of the outer sealing surface close to the inner member shoulder minimizes the reaction path of the lockdown sleeve.

Abstract: A self-coupling flange for coupling and at the same time both axially and radially locking two components especially is suited for coupling of an actuator to a valve. The flange includes an upper member to be fixed to or incorporated into one component and a lower part member to be fixed to another component. An annular piston having a locking ring is movable into an inner axial opening in the lower member to move the two members from an offset position to an aligned position with respective sloping contact faces in abutment.

Abstract: An arrangement in a remote-controllable subsea connector wherein the connector components may be locked together by the aid of a ring of collet fingers (5) cooperating with an actuator ring (17) controllable in the axial direction of said connector. In order to provide secure and efficient locking of said connector without the necessity of exerting very high pressures, and in order to permit compensation of tolerance variations in the connector said actuator ring (17) is provided with a maneuver ring (8) and an annular shaped retaining means which may consist of a ring member, for instance of titium alloy or carbon fibres, or a series of retaining members (7) placed in an annular shape on the inside of said maneuver ring (8), in contact with said fingers (5) in said collet finger ring. Said retaining members (7) cooperate with said maneuver ring (8) via conical surfaces (19, 13).

Abstract: A system for perforating a well with an annulus pressure firer is provided by the present invention. A pressure responsive means is positioned in a tubing string uphole a packer and includes a piston movable in response to a pressure differential between the upper annulus pressure and the pressure inside the tubing string. The movement of the piston is transferred through a second, concentric tubing string to a firing head on a perforating gun below the packer. The system includes a means for simultaneously decoupling the concentric tubing strings below the packer to drop the perforating gun to the bottom of the well.

Abstract: Described is an improved pipe fitting of the self-locking quick action type wherein the leakproof seal is provided by a forced insertion of the extremity of a pipe inside a conical seat without utilizing any gasket of resilient material and wherein the release of the pipe anchoring means may take place only rotating an external crown of a plug in a stable position visibly recognizable by alignment or off-setting of two external indexes.

Abstract: The collet-type connector (10) comprising an upper body member (20) having a plurality of collet segments (52), a cam ring (64) movable relative to the upper body member (20) to move said collet segments (52) into a detachable connection of the connector to a subsea wellhead (14, 14a). The cam ring (64) and collet segments (52) have sets of camming surfaces whereby a first set (86, 92) cooperate to pivot the collet segments (52) initially toward the wellhead (14, 14a) and whereby a second set (96, 104) serves to urge the collet segments (52) further to clamp the connector (10) to the subsea wellhead (14, 14a). When the second set (96, 104) of camming surfaces function, the first set (86, 92) no longer function to rotate the collet segments, thus reducing the power requirement for urging the collet segments (52) into clamping engagement to only one set at a time, even though both sets together serve to aid in holding the collet segments in clamping engagement with the wellhead after final engagement.

Abstract: Wellhead supported subsea template apparatus and methods of installing such template apparatus are provided. The template apparatus are each comprised of a central support member adapted to be positioned into engagement with an upper portion of an existing wellhead and to be supported thereon above the sea floor. Attached to the template are a plurality of laterally spaced guide slot members, mechanisms for removably connecting the central support member to a running tool, and mechanisms for preventing the support member from rotating on the wellhead after being positioned thereon.

Abstract: Fully integrated self-contained connectors for standard tubes include a first annular member having an axial bore preferably of a continuously hollow-cylindrical configuration for receiving ferrules of those standard tubes. A locking arrangement peripheral of the first annular member carries locking members extending through openings in that first annular member for retaining a ferrule at a tube retention shoulder in a locking position. At least one further annular member is axially slidable on the first annular member and houses the locking arrangement outside that first annular member. The locking members are actuated to a locking position upon axial sliding of the further annular member in one direction. Conversely, the locking members are actuated to a release position upon axial sliding movement of the further annular member in another direction. The further annular member may define one or more internal ramps for that purpose.

Abstract: The improved remotely actuated collet connector of the present invention is suitable for joining tubular members with similar or different end preparations or profiles and includes a housing to support the connector from a first tubular member, a plurality of collet fingers or segments mounted within the housing and around the exterior of the first tubular member, an actuator ring surrounding the fingers to move the fingers to release or latch position, pressure responsive means for moving the actuator ring, each of the collet fingers having a first engaging surface and an adapter secured to the finger and having a second engaging surface, said first engaging surfaces mating with the end profile of the first tubular member and said second engaging surfaces of said adapters mating with the end profile of the second tubular member so that when the collet fingers are moved to latch position they secure the first and second tubular members together.

Abstract: A quick-connect fitting or coupling assembly is adapted for releasably connecting and disconnecting a pair of fluid conduits in fluid communication with one another. The assembly includes a socket on one of the fluid conduits for receiving the other fluid conduit inserted longitudinally therein into an interlocking engagement with a resilient barb or finger member on a retainer member disposed within the socket. A removal member is selectively slidably movable in the socket for deflecting the barb or finger member out of such interlocking engagement in order to remove the previously inserted fluid conduit. The assembly also preferably includes lateral support members for laterally supporting the fluid conduits relative to one another and thus strengthening the connection therebetween. The preferred embodiment includes a feature by which the fitting assembly is relatively tamper-resistant.

Abstract: An instant coupling comprises a male element and a female element which are locked together by two teeth (19) supported by flexible strips (18), which are normally in the disengagement position but urged into the engagement position by the action of an axially slidable outer collar (12), which is itself maintained in said engagement position by annular elastic elements (20) interposed between the strips (18).

Abstract: A closure for the end of a male quick disconnect fluid coupling has an innal plug that displaces the plug normally provided in the male quick disconnect coupling, and the closure also has an outer plug wall with balls that can be radially cammed inwardly by a rotatable sleeve on the closure.