Abstract: A pipe connector includes a casing, a valve block mounted in the first end of the casing and movable between a close position and an open position and normally supported in the close position by a spring inside the casing, a locking block holder mounted in the second end of the casing and movable between a locking position and an unlocking position and normally supported in the locking position by a spring inside the casing, and locking blocks transversely mounted in the locking block holder and movable with the locking block holder along a tapered inside all portion of the casing to lock/unlock a pipe that is inserted into the locking block holder to move the valve block to the open position.

Abstract: A quick coupling comprises a male element (2) which can be threadably assembled to a female element (3), housing an inner tubular supporting body (8) in turn housing a bearing (11) thereon the female element (3) bears, the female element (3) including a plurality of radially extending holes (20) in which are engaged ball elements (21) which can be fitted in a circumferential slot formed in the male body (2) and being adapted to be radially locked by an enlarged portion (16) formed on an inner side of a ring nut which can be driven against an urging spring (17) pertaining to the female element.

Abstract: A quick disconnect is provided to permit two cable ends to be rapidly connected and disconnected without the use of tools. The quick disconnect includes rear and front couplings which may be mounted to respective cable ends. Quick connection of the cable ends is effected by connecting the rear and front couplings to one another by a hinge latch. The hinge latch is retained in the closed position by a compression sleeve which surrounds the hinge latch. The front end of the compression sleeve includes a ring groove that retains a ring spring. The ring spring engages complementary retention grooves in the hinge latch to bias the hinge latch in the closed position, thus securing the front coupling to the rear coupling.

Abstract: A coupling assembly includes a female member having a bore and a male member capable of being received in the bore of the female member. A trigger assembly is disposed between the male and female members and includes an actuator, housing, and biasing member. The male member includes an engagement mechanism to engage the trigger assembly and facilitate axial movement of the actuator. Axial movement of the actuator induces expansion of the biasing member and the engagement of the actuator and the male member. Accordingly, the male member is urged or propelled into the bore of the female member upon expansion of the biasing member. To disconnect, the male and female members are utilized to return the trigger assembly to an inactivated position.

Abstract: A connection coupling for transferring gaseous and liquid fluids comprises a switch unit for actuating valves via a switch slide. The switch unit includes an eccentric shaft. The switch slide is coupled to an outer ring slide by at least one bolt.

Abstract: A tube joint comprises a retaining mechanism which retains the locked state by preventing a sleeve from any rotation in the circumferential direction which would be otherwise caused by any unexpected external force. The retaining mechanism includes a ratchet which is provided to surround the outer circumferential surface of a socket body and which is rotatable synchronously with the sleeve, and a coil spring which is interposed between the sleeve and the ratchet and which makes an urging action to cause mutual separation under an action of the spring force.

Abstract: A tube can be easily attached to and detached from the tube joint by one hand. The tube joint comprises: a body proper having one open end, from which the tube is inserted; and a locking member locking the tube in the body proper. The locking member includes: a ring section sliding on an inner face of the body proper and moving in an axial direction; a plurality of flexible extended sections extended from the ring section toward the one open end of the body proper; and a plurality of claw sections radially projected inward from front ends of the flexible extended sections. The body proper has a tapered section, which reduces a diameter of the front ends of the flexible extended sections when the locking member is moved toward the one open end and the front ends of the flexible extended sections enter the tapered section, whereby the claw sections bite and lock the tube.

Abstract: A fluid coupler has a female coupler member and a male coupler member which can be connected to the female coupler member by simply being inserted into the female coupler member. The female coupler member includes a first locking ball, a second locking ball and a locking ball confining ring. The confining ring has a first slanted inner surface engaging the first locking ball to partly project the first locking ball into a male coupler member receiving hole of the female coupler. The confining ring further has a second slanted inner surface and a locking ball pressing surface extending in parallel with an axis of the male coupler member receiving hole. In an insertion operation, the male coupler member first engages the first locking ball to press it against the first slanted surface, thereby axially moving the confining ring.

Abstract: A pressurized fluid delivery apparatus such as a pressure washer or sprayer including a pump adapted to provide a pressurized fluid, a conduct fluidly connected with the pump to receive the pressurized fluid from the pump, a fluid accessory fluidly connected with the conduit to receive the pressurized fluid from the conduit, and a quick-disconnect assembly selectively fluidly connecting the fluid accessory and the conduit. The quick-disconnect assembly includes a male fitting coupled to one of the fluid accessory and the conduit. The male fitting includes a male component and a first non-circular surface. The quick-disconnect assembly also includes a female fitting coupled to the other of the fluid accessory and the conduit. The female fitting includes a female component having an opening for receiving the male component and a second non-circuit surface coupled to the first non-circular surface to prevent rotation between the male fitting and the female fitting.

Abstract: The invention concerns a rapid connection coupling (10) for transferring high-pressure gases and/or liquid, in particular for refilling a high-pressure, mobile container such as a gas cylinder with oxygen in a home environment or at a transfill station with a transfill device. The coupling in question comprises the following elements: a tubular housing (11), an outer sliding sleeve (18) which can slide relative to the housing (11); a number of radially expanding collet chuck elements (15) mounted on the housing (11) and provided with an engaging contour (17) which facilitates connection to a matching connection fitting (30); and a sealing piston (22) capable of sliding centrally inside the housing (11), the said sealing piston being brought into contact with the connecting fitting (30). Internal parts (e.g.

Abstract: An annular gasket is stationarily mounted on one coupler, and a tubular body is mounted for axial sliding movement within another coupler. The body has an outer wall formed with a sealing surface that sealingly engages the gasket in a sealed position, and with an outer channel that is spaced from the gasket in a bleed position in which pressurized fluid within the couplers is released to a bleed fitting.

Abstract: A device for gripping the external wall surface of a pipe or bar. The device includes a tubular body having at least one end open for insertion of a pipe or bar, and a cage with balls or rollers cooperating with a first tapered internal wall part of the body. A resilient mechanism pushes the cage in an axial direction to cause the balls or rollers to grip the external wall of an inserted pipe or bar. The device also has a compressible member located within the body and cooperating with a second tapered inner wall part of the body and movable relative thereto when increased fluid pressure is present within the body. Under increased pressure it also grips the external wall of the inserted pipe or bar.

Abstract: An air gun with a quick-releasing device has a body, a head tube attached to the body and a detachably functional tip, wherein the quick-releasing device is attached to a distal end of the head tube to secure the detachably functional tip. The quick-releasing device has a slit defined in the distal end of the head tube to communicate with an inner space of the head tube, a locking sheet movably received inside the slit to partially enter the inner space of the head tube, and a locking lever pivotally mounted on the head tube to drive the locking sheet to move in a vertical direction. Thereby, the locking sheet is allowed to leave the inner space of the head tube when a user presses the locking lever to enable easy release of the attached functional tip and then to exchange the original tip for another functional tip.

Abstract: A breakaway coupler for coupling upstream and downstream hose includes one or more locking balls carried by a downstream coupling member. An upstream flapper is pivotally secured with respect to an upstream housing. A pushrod is axially movable in response to engagement by the downstream coupling member. A pry recess on the downstream coupling member is spaced between the downstream housing and the upstream housing, such that a tool inserted into the pry recess is leverageable to move the downstream coupling member to unlock the breakaway coupler.

Abstract: The aim of the invention is to achieve secure and simple handling of an activation device, especially on a rapid-action reception coupling for transferring gas-liquids and/or liquids—liquids or on valves comprising a tubular housing (11, 29) and a slide (41), which is mounted in such a way that it is displaceable in relation to the housing. Said slide is connected to a lever mechanism (42), To this end, the invention provides that the lever mechanism (42) is positioned in a sliding ring (40), which is mounted in such a way that it is displaceable in relation to the housing (11, 29).

Abstract: A connecting device (20) for connecting a connection hose or connection tube to a receiving device includes a tubular connection neck (2), an actuating sleeve (28), and a support sleeve (38). The receiving device, to which the connecting device (20) can be connected, includes at least one detent element, which is actuatable by means of at least one actuating element mounted on the receiving device. The connection neck (2) is connectable to the connection hose or connection tube and has a detent lug (20) or detent groove, which can be brought into engagement with the detent element of the receiving device. The actuating sleeve (28) serves to actuate the actuating element of the receiving device. The support sleeve (38) is braced on the receiving device and is axially displaceable relative to the actuating sleeve (28), prestressing a first spring (44).

Abstract: A nozzle adapter for use in converting a nozzle designed for use with Schrader type valves to a nozzle usable with Presta type valves is provided. The nozzle adapter includes an inner sleeve defining a central opening into which the Schrader nozzle can be inserted at one end. The adapter also includes an opening at the opposite end into which a Presta type valve can be inserted. The adapter includes a locking mechanism selectively operable by an outer sleeve that is slidably mounted to the inner sleeve to effectively retain the Schrader nozzle in alignment with the adapter to allow the Schrader nozzle to be utilized as a Presta nozzle.

Abstract: A connection for tubulars includes an outer housing, an inner housing receivable in the outer housing, a retainer member coupled to and axially restrained with respect to the inner housing, and a slidable member mounted on the inner housing and movable between an engaged position and a disengaged position. The slidable member carries a plurality of engagement elements that form an interlocking joint between the retainer member and the outer housing when the slidable member is in the engaged position.

Abstract: The invention relates to a plug-in vacuum cleaner hose arrangement (10), comprising a socket (15), formed from a collar piece (12), in which a hose push-fit end (13) is detachably held, by axially plugging in to a clip-lock. An operating slide (17), comprising a retaining surface (26) runs axially on the collar piece (12) and may be axially displaced in both opposing axial directions (e, a) about a neutral axial position for the retaining surface (26) thereof, against a spring force (by 18). In said neutral axial position the retaining surface (26) locks the clip body (S) and releases the same when displaced from the neutral position thereof by any movement. The connection is produced by a first directing surface (41) on the front end of the hose push-fit end (13) and opening the connection is performed by a second directing surface (43) formed by the locking recess (T) of the hose push-fit end (14). Said arrangement (10) permits a convenient operation, both on attaching and detaching the connection.

Abstract: A coupler includes a first joint member, a holder, a second joint member, a sleeve, and a valve. The holder is attached to an outer circumference of the first joint member. The second joint member is detachably attached to the holder. The sleeve covers an outer circumferential surface of the holder and is displaceable by a first spring member. The valve is attached into the first joint member and changes the communication in the first joint member.

Abstract: A coupling assembly is provided that includes a first coupling member removably securable in an apparatus having a port that includes a receiving groove, a retaining surface and a resilient locking member receivable in the receiving groove. The first coupling member includes a body extending along an axis from a leading portion configured for receipt within the port of the apparatus to a trailing portion configured to releasably connect the first coupling member to a second coupling member. The body includes a rib having a ramp tapering outwardly in a direction way from the axis and a shoulder tapering inwardly toward the axis. The coupling member and port are sized such that upon insertion of the first coupling member into the port, the resilient locking member travels up the ramp and then contracts becoming trapped between the shoulder and the retaining surface to secure the first coupling member to the apparatus.

Abstract: Adaptor assemblies are detailed. Preferably for connecting automatic pool cleaning apparatus to return lines of swimming pool water-circulation systems, the assemblies utilize spurs that may affirmatively grip, or cut or gouge into, the return lines to retain the adaptors in position. Releasing the adaptors may occur with use of a release line which retracts the spurs when activated. Avoiding release of the spurs through rotation of the assemblies allows rotation for other purposes as, for example, to connect the device to a hose or other apparatus. A bellows or other assembly additionally may be included with the assemblies to facilitate their sealing against walls or other surfaces in which the return lines are embedded.

Abstract: A coupler for coupling an end of a hose to a mating end of a faucet or another hose. In the first embodiment, the female end of the coupler is mechanically locked in sealing engagement with a male end by simply translation thereof by means of wedges and an outer retaining sleeve. In a second embodiment, hydraulic pressure provides the final seal, with the female end being a spring split-ring locked and compressed by means of an outer locking sleeve, which outer locking sleeve is released by squeezing it in order to deform it. A third embodiment combines the first and second-embodiments.

Abstract: The invention relates to fast couplings for connecting hoses, particularly for domestic irrigation. A fast coupling (1) is formed by a first body (2) and a second body (4) reciprocally connected by inserting first lugs (23) projecting from the second body (4) in first slots (19) made on first body (2). A male connector (15) is locked inside the first coupling (1) by radially pressing an end (14) of said male connector with a torus-shaped elastic element (11). Unlocking the second body (4) from the first body (2) causes the automatic ejection of the male connector (15).

Abstract: Disclosed is a pipe coupling, which enables pipes to be assembled with the pipe coupling by an one-touch operation while maintaining the liquid-tightness at jointing portions. In the pipe coupling, a connection tube has holding shoulders formed at opposite predetermined inner portions of the connection tube and maximum diameter portions formed at both side portions of the connection tube outside of the holding shoulders. The connection tube has an inner diameter decreasing in a direction toward both mouths of the connection tube from the maximum diameter portions. Snap rings is inserted inside of the mouths of the connection tube in a compressed state. Each of packing members is tightly disposed in each of the maximum diameter portions. Jaw couplings are inserted in the mouths of the connection tube and each of the jaw couplings is assembled with a plurality of fixing jaws and having engaging protuberances. The fixing jaws are arranged in a circumferential direction of each of the jaw couplings.

Abstract: The quick coupler according to the invention comprises a male element adapted to be fitted in a female element and maintained in this position by a latch forming stop and opposing a movement of withdrawal thereof.

Abstract: A device for gripping the external wall surface of a pipe or bar. The devices includes a tubular body having at least one end open for insertion of a pipe or bar, and a cage with balls or rollers cooperating with a first tapered internal wall part of the body. A resilient mechanism to push the cage in an axial direction to cause the balls or rollers to grip the external wall of an inserted pipe or bar. The device also has a compressible member located within the body and cooperating with a second tapered inner wall part of the body and movable relative thereto when increased fluid pressure is present within the body. Under increased pressure it also grips the external wall of the inserted pipe or bar.

Abstract: A safety quick connection for connecting a source of fluid to a working element has a body connectable to the fluid source, a fitting member connectable to the working element and movable relative to the body, and a locking member, the body, the feeding member and the locking member being formed so that under the action of fluid flowing through the connection from the fluid source to the working element a part of the body engages with a part of the locking member and prevents opening of the connection.

Abstract: A quick connector including a first connecting member attached to an object, a second connecting member releasably attached to the first connecting member and a release mechanism for detaching the first and second connecting members, wherein the release mechanism automatically disconnects the first connecting member from the second connecting members when the connecting members are pulled away from the object.

Abstract: A method, system and tools for introducing a fiber optic conduit into a pressurized gas pipeline includes the step of introducing a translating member into the pressurized gas pipeline via an entry port in a first fitting attached to the pressurized gas pipeline. Tools are deployed within a first pressure lock housing attached to the first fitting by using a first manipulator located in the first air lock housing. The translating member, such as a duct rod, is advanced within the pressurized gas pipeline by a driving mechanism until a second drilling fitting is reached. The translating member is attached to a fiber optic conduit or cable. The duct rod and fiber optic conduit are then pulled back through the pressurized gas pipeline. Extractor tools extending through seals in the pressure lock housing engage with and withdraw the duct rod. Alternatively, first and second duct rods may be pushed towards each other from the first and second fittings. End elements on the duct rods engage each other.

Abstract: A quick connect and disconnect coupling which does not allow free rotation of the ends of the coupling with respect to one another includes a male connector having a coupling end and a female connector having a coupling end with a receiving opening therein to receive the coupling end of the male connector when the connectors are in coupled condition. A holding mechanism is associated with the connectors to hold them together in coupled condition and allow easy disconnection when desired. Interengaging cooperable surfaces are provided on the male and female connectors, such as tabs extending from the female connector to engage a flat or other tab mating surface on the male connector to substantially prevent relative rotation of the male connector in relation to the female connector. The coupling is particularly useful for attaching sprinkler heads to sprinkler head holding bases in sprinkler systems to allow easy replacement of the sprinkler heads.

Abstract: An apparatus is described that efficiently resupplies radioactive seeds to a brachytherapy applicator. A seed-holding system includes a holder and a transfer device. The holder, which may be disposable, stores the radioactive seeds and the transfer device, which may be reusable, helps shield and dispense the seeds. The holder is coupled to the transfer device, and the apparatus is mated to an applicator. After seeds have been dispensed, the apparatus may be disconnected from the applicator and the empty holder may be ejected from the transfer device, and replaced with a full holder.

Abstract: A safety quick connection for connecting a source of fluid to a working element has a body connectable to the fluid source, a fitting member connectable to the working element and movable relative to the body, and a locking member, the body, the feeding member and the locking member being formed so that under the action of fluid flowing through the connection from the fluid source to the working element a part of the body engages with a part of the locking member and prevents opening of the connection.

Abstract: A pull stud bolt has two pairs of wrench engaging faces formed on a flange thereof. The adjacent wrench engaging faces make an angle of 90 deg with each other. Alternatively, three pairs of wrench engaging faces are formed on the flange. The adjacent wrench engaging faces make an angle of 120 deg with each other.

Abstract: A ball coupling comprising a male tubular endpiece (2) provided with an outer annular collar (4), a female tubular endpiece (3) having a ball-retaining cage fixed axially thereon, the cage having slots (10) for receiving balls (12), and a thimble (13) disposed coaxially about the cage (6) and mounted thereon via guide means (14, 15) for guiding the thimble to turn about the longitudinal axis (1) of the coupling so as to enable the thimble to turn through a turn angle (&agr;) relative to the cage between a first position and a second position, the thimble having for each ball, a first recess (16) extending in register with the corresponding slot for the first position of the thimble to form an abutment for holding the corresponding ball in a position in which it projects into the inside of the cage, and a second recess (17) connected to the first recess via a sloping wall (18) and offset relative to the first recess by an angle corresponding to the turn angle (&agr;) so as to receive the corresponding ball in

Abstract: A pipe coupling comprising a socket having a plurality of locking balls capable of engaging a locking portion on a plug and connected to the plug with the locking balls in engagement with the locking portion. The socket includes a main cylinder having an end portion formed with an inlet to receive the plug and an outer cylinder located close to the end portion of the main cylinder and around the outer periphery thereof. The main cylinder and the outer cylinder define a gap having a tapered profile between them, and the locking balls are stored in the gap. The locking balls can project and recede from the inner periphery of the main cylinder. Further, the pipe coupling comprises a thrust cylinder slidable on the outer periphery of the main cylinder. When the locking balls engage the locking portion, the thrust cylinder prevents centrifugal movement of the locking balls.

Abstract: A tube joint comprises a first tube joint member; a second tube joint member joined to the first tube joint member; a sleeve attached to a joining portion of the first and second tube joint members, for joining and releasing the first and second tube joint members; a resilient member for urging the sleeve in the direction to join the first and second tube joint members to one another; and a protecting member for protecting the sleeve.

Abstract: A quick coupler retention clip is disclosed for preventing an inadvertent disconnection of a quick coupler. The clip device includes a unitary clip having a first and a second end. The first end of the clip is of annular configuration so that the body of the coupler extends through the annular first end for anchoring the first end of the clip relative to the body. The second end of the clip is a C-shaped configuration to removably engage a groove defined between a collar and the body of the coupler. A strap extends between the first and second ends of the clip for securing the first and second ends of the clip together. The disconnection of the body from the port of the quick coupler is permitted only when the C-shaped second end is removed from engagement with the groove so that inadvertent disconnection of the body from the port is prevented.

Abstract: A quick connector including a first connecting member attached to an object, a second connecting member releasably attached to the first connecting member and a release mechanism for detaching the first and second connecting members, wherein the release mechanism automatically disconnects the first connecting member from the second connecting members when the connecting members are pulled away from the object.

Abstract: A quick connector for pipes for pressure or vacuum testing includes a tubular housing extending in an axial direction, a spreadable connecting element mounted within the tubular housing, formed as a sleeve and configured to clamp a pipe in a connected position, and an actuating device configured to act upon the connecting element to release the connecting element. The actuating device includes a hand lever extending in the axial direction of the housing. The hand lever has an actuating push rod that extends through an outer wall of the housing. The quick connector includes further a piston positioned within the housing and configured to be movable in the axial direction by the actuating device, and a compression spring positioned within the housing and configured to bias the piston in a connected position.

Abstract: Provided is a coupling for fluid pipes, comprising a plug and a socket. The socket includes a socket body, a sleeve slidably fitted on the outer peripheral surface of the socket body and urged toward the distal end thereof, and a plurality of locking members provided on the socket body and capable of being engaged with and disengaged from an outer peripheral groove by means of the sleeve. The pipe coupling further comprises a pair of end faces provided individually on the plug and the socket and adapted to abut against each other when the plug and the socket are joined, and a shaped packing provided on one of the coupling end faces and adapted to prevent admission of external air when the coupling end faces abut against each other and to prevent the fluid from leaking out when the coupling end faces are separated from each other.

Abstract: A fluid coupling including coded and non-coded embodiments and a method for their use. The coded embodiment allows connection of such lines while preventing the inadvertent connection of mismatched lines in a system where there are matched and mismatched delivery and supply lines. Both embodiments of the coupling include axially movable first and second coupling members and a radially operating latch. The coupling members are releasably slideably, axially interfitted with their fluid passageways in communication, and the latch moves radially of the passageways to secure the couplings when they are interfitted. In the coded embodiment, key coding elements on the coded coupling members are movable into matched interengagement when the supply and delivery lines are matched but are precluded from moving into matched interengagement when the lines are mismatched.

Abstract: A quickly connectable, coupling for attaching a gas source to a gas appliance. The coupling fits onto a gas probe having a nipple, and a shoulder located behind the nipple. The coupling includes a slide that is movable between an opened position and a closed position. Moving the slide back and forth causes an inwardly-directed protrusion to move radially inward and outward. To secure the coupling on the probe, the slide is moved to cause the inwardly-directed protrusion to move radially inward behind the shoulder. The coupling includes a check valve that is spring-biased to prevent the flow of gas through the coupling when the coupling is not attached to the probe. When inserted in the coupling, the probe contacts a shaft of the check valve, and presses the check valve, against the bias of the spring, to an opened position.

Abstract: A ball coupling comprising a male tubular endpiece (2) provided with an outer annular collar (4), a female tubular endpiece (3) having a ball-retaining cage fixed axially thereon, the cage having slots (10) for receiving balls (12), and a thimble (13) disposed coaxially about the cage (6) and mounted thereon via guide means (14, 15) for guiding the thimble to turn about the longitudinal axis (1) of the coupling so as to enable the thimble to turn through a turn angle (&agr;) relative to the cage between a first position and a second position, the is thimble having for each ball, a first recess (16) extending in register with the corresponding slot for the first position of the thimble to form an abutment for holding the corresponding ball in a position in which it projects into the inside of the cage, and a second recess (17) connected to the first recess via a sloping wall (18) and offset relative to the first recess by an angle corresponding to the turn angle (&agr;) so as to receive the corresponding ball

Abstract: A plug portion 23 which engages to a socket 13, to which a liquid transport hose and a gas transport hose 7 are connected, is provided to a plug 12 which closes an aperture portion which is formed in a container. A liquid conduit 26 on the side of the plug 12 which is communicated to a liquid conduit 56 on the side of the socket 13 is formed on the inner side of the plug portion 23, while a gas conduit 41 on the side of the plug 12 which is communicated to gas conduits 52 and 63 on the socket side is formed on the outer side of the plug portion 23. By this construction, it is possible to anticipate simplified and reduced cost manufacture for a connector which excels in convenience due to having a plurality of conduits.

Abstract: A medical gas utility stand for connection to at least one remote medical gas source, each medical gas source detachably connectable to a gas conduit line so that the gas conduit line is in fluid communication with one medical gas source. The gas utility stand includes a base connected to a substantially upright support member. The gas utility stand also includes a gas connection member having at least one gas conduit defining a gas passage extending between an input end and an output end, the gas connection member fixedly connected to the support member adjacent its top end. Additionally, the gas utility stand has at least one pair of identical gas fittings, each gas fitting defining a bore extending between an attachment end and a securing end, the securing ends of one pair of identical gas fittings detachably secured to the opposing input end and output end of one gas conduit so that the bores of the pair of identical gas fittings are in communication with the gas passage of the gas conduit.

Abstract: A telescopic extension (1; 41) for a household appliance comprises an inner tube (2) tightly sliding in an outer tube (3), a sleeve (4; 44), a constraining element (5) between the inner tube (2) and the outer tube (3), a thrust element (6), and an actuator (7). In the extension (1; 41), a tubular end portion (9; 49) associated with the outer tube (3) has a relief (11) forming a niche (12). The sleeve (4; 44) is provided with a projection (15) which is inserted in the niche (12). The sleeve has a hollow (18) wherein the constraining element (5), thrust element (6), and a spring (21) are completely housed. The thrust element (6) is formed by a lengthened, flattened slider (28) provided with a narrow portion (20) having recesses. The actuator (7) has protruding wings (37) provided with inner small teeth (38) which are snap-on coupled with the recesses. (FIG.

Abstract: A water pipe joint includes a main body, a control sleeve, and an elastic element. The main body is provided with a plurality of expansion holes and receiving slots. The elastic element is disposed in a receiving gap of the main body. The control sleeve is provided with a plurality of retaining blocks and resilient pieces. The control sleeve is joined with the main body such that the retaining blocks of the control sleeve are slidably received in the receiving slots of the main body, and such that the retaining blocks of the control sleeve are acted on by the elastic element and the resilient piece to extend out of the expansion holes of the main body, so as to be detachably engaged with a water discharging connector.

Abstract: A spring-biased holder 42 for pressing a locking ball (41) is accommodated between an outer sleeve (30) fitted onto an outer surface of a coupling part (21) of a coupler main body (20) and the outer surface of the coupling part (21) so as to be capable of moving back and forth. A coupler (10) can be attached to a plug (51) of a dialyzer (50) easily with a single operation by moving the holder (42) back and forth. In cleaning using a cleaning adapter (60), the coupler (10) is attached to the adapter (60) while releasing the locking ball (41) with a pressing protrusion (67) of the adapter (60), so that the inside of the coupling part (21) can be surely cleaned.

Abstract: A disconnect coupling for high pressure fluidic lines has an improved retaining mechanism for retaining the male portion within the female portion. The mechanism comprises a plurality of retaining lugs that are disposed within the female portion of the coupling. The retaining lugs are arranged so as to mate with a retaining groove formed into the outer surface of the male portion such that the bearing surfaces contact each other over a much-increased surface area.