Abstract: A pipe fitting socket for use with an axial driving device accepts a variety of angled fittings (e.g. tees, full elbows, slant elbows) snugly within a fitting cavity for torquing onto a fixed threaded end of pipe. Torquing of the fitting is accomplished by inserting a drive stud of the driving device into a drive aperture defining a rotational axis and torquing the driving device, thereby rotating the socket about the rotational axis, or through manually torquing a cylindrical portion of the socket. The socket offers superior efficiency and safety over conventional pipe wrenches by maximizing the effective range of movement available for a wrench used for angled fitting installation and/or removal, while virtually eliminating a wrench's loss of grip on the fitting.

Abstract: A system of aligning and connecting a threaded male fastener to a correspondingly threaded female fastener has a nut having a plurality of upturned sides and a central axis aligned with that of one of the male or female fastener. The system includes a guide sleeve having a cylindrical internal surface and an end sized to fit within the upturned sides of the nut, and a guide member having a cylindrical external surface and a central axis aligned with that of the other of the male or female fastener. The guide member cylindrical external surface is slidingly and rotatably movable with respect to the guide sleeve cylindrical internal surface. The guide sleeve end fits within the upturned sides of the nut and the guide member is adapted to be slid into the guide sleeve, such that the threaded male and female fasteners are coaxially aligned and contacted. The guide member is rotated with respect to the guide sleeve so that threads of the male fastener engage threads of the female fastener.

Abstract: Apparatus and methods for securement of lines to downhole well tools. A method of securing one or more lines to a well tool includes the steps of: installing the one or more lines in a groove formed longitudinally along an outer surface of the well tool, the groove having a width at the outer surface of the well tool which is narrower than a width of the groove at a position radially inward relative to the outer surface; and securing the one or more lines in the groove. A well tool includes a groove formed longitudinally along an outer surface of an outer housing of the well tool. The groove has a width at the outer surface of the well tool which is narrower than a width of the groove at a position radially inward relative to the outer surface. One or more lines are secured in the groove.

Abstract: An implantation cartridge for a pipe connection designed to be fitted in a housing includes a body and a quick coupling, the inlet of the housing has an annular rim designed to form, with the pipe in the connection end position and when the cartridge is in an intermediate insertion position in its housing, a stop for limiting the axial travel of the push button so as to make the connection of the pipe to the cartridge irreversible.

Abstract: A fluid coupling includes an insertion verifier having a ring and a plurality of forwardly extending legs connected to the ring and disposed in slots defined by side walls of locking arms defined in a retainer. The ring forms an open segment for installation of the ring around a tube. A release tool for disengaging the fluid coupling from a locked to an unlocked position includes a handle forming a gap at a free end thereof between two a semi-cylindrical arcuate members forming a cylindrical release sleeve. The release tool further includes two insertion prongs defining a pocket therebetween. The release sleeve is adapted to disengage the retainer, and the pocket is adapted to disengage the verifier of the fluid coupling.

Abstract: A coupling assembly includes a first coupling member that extends along an axis from a forward end toward a rearward end and includes a first locking surface and a first connection indicator positioned between the first locking surface and the rearward end. A second coupling member includes a receptacle for receiving the forward end of the first coupling member, an interior surface having a second locking surface and an exterior surface that may include a second connection indicator. A locking member is positionable between the first and second locking surfaces to connect the first and second coupling members. A release member is adapted to cover the first and second connection indicators when the locking member is positioned between then first and second locking surfaces and to expose at least one of the first and second connection indicators when the first and second coupling members are disconnected.

Abstract: An electrohydraulic unit assembly for a motor vehicle comprising a receiving body defining a sealing face and at least two connectors fastened to the receiving body of the unit, oriented substantially parallel one to another and separated by a defined distance from one another. Each connector is configured for connecting a fluid conduit to the unit. Each connector includes a screw fitting for fastening the respective hydraulic connection to the receiving body of the unit such that a sealing face of the screw fitting or a sealing face of the fluid conduit is seated on the sealing face of the receiving body. Each screw fitting is rotatably connected to the body and includes two spanner flat portions having different spanner widths.

Abstract: A fitting arrangement and method of securing a fitting arrangement to a surface is provided. A plurality of adjacent fittings is coupled to and extends from a mounting surface of a structure in a well bore. Each fitting has an engagement surface that is configured to engage with an installation tool for coupling the fitting to the structure. The engagement surfaces of the adjacent fittings in the plurality are offset from each other to thereby define a clearance for the installation tool.

Abstract: A system for aligning and connecting a threaded male fastener for securing an oil line to a correspondingly threaded female fastener at the inlet of an oil cooler in a radiator tank has a guide sleeve having a cylindrical internal surface and a central axis adapted to be aligned with a central axis of the female fastener, and a guide member having a cylindrical external surface and a central axis adapted to be aligned with a central axis of the other of the male fastener. The guide member cylindrical external surface is slidingly and rotatably movable with respect to the guide sleeve cylindrical internal surface. The guide member is adapted to be slid into the guide sleeve, such that the threaded male and female fasteners may be coaxially aligned and contacted, and the guide member may be rotated with respect to the guide sleeve so that threads of the male fastener engage threads of the female fastener.

Abstract: A conduit disconnect tool is fabricated from a hollow tubular member having one end angled with respect to the longitudinal axis of the hollow tubular member and formed with a fork configuration at that end. The opposite end of the tool is milled to provide a semi-cylindrical section. Either end may be impinged on a fitting release plate to effect and permit removal of conduit from the fitting.

Abstract: The device serves to fasten the outflow bend (9) to a fastening body (4), for example to a mounting frame (2). The pipe clamp (11) has a holder (12), which on an inner side (20) possesses grooves (21), which, for the axial fixing of the socket (10), cooperate with ribs (22, 23, 24) on an outer side of the socket (10). The holder (12) has a collar (19), which, for the axial fixing of the socket (10), can be mounted into a groove (25, 26) of the socket (10) or onto a rib (22, 23, 24) of the socket (10), according to choice.

Abstract: A coupling assembly includes a first coupling member extending along an axis from a leading end to a trailing end and having an exterior that includes a first locking surface. A second coupling member extends from a receiving end to a remote end and includes a receiving portion sized to receive the first coupling member. The second coupling member also includes a second locking surface. A latching sleeve is positioned between the first and second coupling members and includes a bead. The latching sleeve is sized such that as the first coupling member is inserted into the second coupling member, the latching sleeve is compressed as the bead engages the second coupling member and then expands as it moves over the second locking surface to become engaged between the first locking surface on the first coupling member and the second locking surface on the second coupling member.

Abstract: A pipe fitting or pipe having a body and at least one radially outward projecting projection disposed on a exterior surface of the pipe fitting. The projection may have a leverage point configured such that force applied to the leverage point is translated into a force on the pipe fitting. A method of installing the pipe fitting is also disclosed, including a preparation step, a first coupling step, and, optionally, a second coupling step. In the first coupling step, a force may be applied to one of the projections on the pipe fitting to manipulate the pipe fitting to operably couple it with a pipe. In the optional second coupling step, a force may be applied to one of the projections on the pipe fitting to brace the pipe fitting to operably couple it with a pipe. An installation tool may be used to apply a force to the projection.

Abstract: A female coupler suitable for use with a high pressure fluid is provided. The female coupler has locking members or balls adapted to be forced into engagement with a male coupler inserted into the female coupler by a sleeve or outer movable member. The sleeve is held by holding members or balls until the male coupler is inserted into the female coupler and a locking ball receiving recess formed in the exterior surface thereof is brought into a position for receiving the locking balls therein. Accordingly, the sleeve is prevented from moving to a position for forcing the locking ball into the locking ball receiving recess even if the male coupler is suddenly moved out from the female coupler, which is a problem that can occur in prior art female couplers. Further, the sleeve is provided with handle.

Abstract: An adapter configured to enable a user to quickly and easily couple a fluid supply source to a pipe extending from a system to be brazed without requiring any modification or marring to the pipe. The adapter forming a substantially air-tight seal without requiring any bonding or adhesives. In one form the adapter comprises an access stem fitting on one end, and a step or conic adapter on another end. A method for using this device is also disclosed where in one form, the fitting is connected to a fluid source, the fitting is connected to the system to be brazed or welded, fluid is provided, and the system is brazed or welded.

Abstract: A coupling for connecting pipes, having a seal, flanges, a threaded portion and a nut, where the end portion of the pipe is equipped with a concentric press surface located immediately proximal to the periphery of the pipe and designed to be able to take an axial pressure from a preloading tool, which pressure is distributed evenly or point-by-point about the periphery of the pipe. The preloading tool has two end sections connected to two or more rods, each rod being equipped with a hydraulic cylinder.

Abstract: A hydraulic coupling device, comprising a coupling unit, a holder block, and a lock nut. The coupling unit is mounted to the holder block by means of the lock nut, which is tightened in a thread at the nose end of the coupling unit. The lock nut has a rotationally symmetrical outer contour. A plurality of grooves distributed around the circumference are recessed in the outer contour. The grooves extend axially inward from the end of the lock nut facing away from the holder block. The invention also relates to a lock nut for a hydraulic coupling device, a mounting tool for the lock nut as well as a method for mounting a hydraulic coupling device.

Abstract: A quick connector includes a body, a restricting ring and a constrictor. The body has a central through hole for liquid to flow through, a constrictor groove in the central through hole for an O-shaped ring and the constrictor to fit therein, and plural petals on an upper end. The restricting ring has a center hole, an inner circumference and an outer circumference, with an annular wall defined between the inner and the outer circumference. Plural holes are formed in the annular wall, so the petals of the body fit in the holes of the restricting ring to combine with the body. The inner surface of the inner circumference is sloped to restrict the movement of the constrictor. The constrictor has plural elastic petals, which have an inner clamp surface for closely clamping the surface of a plastic tube, and a pointed end for catching or loosening the plastic tube.

Abstract: A tube and fitting assembly for refrigeration systems comprises a tube having a connection end and receiving a flow of refrigerant. A fitting has a tubular body with a connector portion adapted to sealingly connect the fitting to a device. The connector portion has a seat portion having a shape complementary to that of a connector end of the device to form a sealing surface therewith. A sealing portion projects from the connector portion to form a sleeve about a portion of the tube. A weld seam is provided between the sealing portion and the tube.

Abstract: A coupling assembly includes a first coupling member having a first exterior surface and a second exterior surface spaced from the first exterior surface by a rib having a first locking surface. A second coupling member includes an inwardly facing surface sized to receive the first coupling member and an inwardly facing annular groove having a second locking surface. The groove is configured to reduce stress risers in the second coupling member. A resiliently expandable locking ring is received in the inwardly facing annular groove and is engaged and expanded to a larger radial size by the rib upon movement of the first coupling member further into the second coupling member. The resiliently expandable locking ring is configured to retract in diametrical size to become trapped between the first locking surface and the second locking surface upon further movement of the first coupling member into the second coupling member.

Abstract: A slip fit quick disconnect pipe coupler having an insertion portion and a housing portion which mate to form a sealed coupling between pipes. The insertion portion and housing portion are separable to decouple the pipes.

Abstract: A pipe fitting wireform which when threaded into a fitting allows a user to measure center-to-end or end-to-center of the fitting to determine the length of a pipe needed to connect a pair of pipe fittings in a pipe assembly. The fitting wireform is a coil with a free end bent laterally to form a tang. The fitting wireform having an outside diameter substantially equal to the nominal size of the pipe fitting with substantially the same number of turns per inch as the pipe fitting such that the pipe fitting wireform can be threaded into the pipe fitting.

Abstract: An installation groove is formed on an outer circumferential surface of a tube joint body, into which a fluid tube is inserted. An annular fixing ring is installed through interaction with the installation groove. A cylindrical guide member is arranged inside of the body. A chuck is provided that engages with an outer circumferential surface of the fluid tube, thereby retaining the fluid tube. When a fastening pawl of the chuck bites into the outer circumferential surface of the fluid tube, the guide member is pressed radially outwardly by the chuck, with the tube joint body being interposed between the guide member and the fixing ring.

Abstract: The invention relates to a plug-in part for a plug connector arrangement, the plug-in part being in the form of a piece of tubing and having a sealing portion, comprising a sealing element enclosing the piece of tubing in a circumferential direction, and a locking portion with at least one undercut, and it being possible for the plug-in part to be plugged into the receptacle of a coupling part of the plug connector arrangement in order to produce a fluid-tight connection, and for at least one locking element of the coupling part to engage behind the plug-in part in the region of the undercut. In order to develop the plug-in part so as to reduce the risk of the sealing element being adversely affected, it is proposed according to the invention that the undercut is formed by a protrusion which projects from the outside of the piece of tubing and extends circumferentially merely over a sub-region of the piece of tubing.

Abstract: A tool for separating a gasketed pipe joint includes a body comprising a relatively thin member formed into a partially cylindrical shape having spaced-apart forward and rear edges; and an arcuate reinforcing collar attached to an outer surface of the body adjacent the rear edge. A driving apparatus for the tool includes a first driving ring adapted to be mounted around one of the pipes and sized to bear against the gasket release tool; a second driving ring adapted to be mounted around the other one of the pipes and sized to bear against the socket; and apparatus for drawing the first and second driving rings together so as to drive the gasket release tool into a pipe joint.

Abstract: The pipe coupling for connection to a pipe end of a pipe made of polymer material comprises an inner sleeve (1) which is intended for insertion into the pipe end and for abutment with the inner surface of said pipe end, an outer sleeve which is intended for abutment with the outer surface of said pipe end and which includes a slot-like opening (14), and means for adjusting said opening (14). The coupling further comprises a pre-widening means positioned between the edges (21) of the slot-like opening (14). The pre-widening means makes the slot-like opening (14) larger such that the inner diameter of the outer sleeve (2) is larger than the outer diameter of the pipe.

Abstract: A quick to connect and quick to disconnect fluid coupling has a clip, a male portion having an annular groove adapted to receive the clip, a female portion, and a sealing element. It is improved by the female portion having a dual function frustoconical portion adapted to compress the sealing element during joinder of the male portion with the female portion as well as to compress the clip into the annular groove in preparation of separating the male portion from the female portion. Further, a sleeve is slideably placed about the male portion and adapted to capture the clip compressed within the annular groove.

Abstract: In a fluid system such as irrigation system, fluid conduit attachment is facilitated through the use of a coupling. The coupling may have a body with a first end attached to a component such as an irrigation component, and a second end designed to receive an end of a conduit. The first end may be integrally formed with the component or separately attached thereto. The second end has a bore into which the end of the conduit is inserted. A gripping mechanism is seated in the bore to grip the end of the conduit. A release mechanism slides to release the conduit. The coupling may have a bend and/or branches extending to extra ends. A second coupling may be added to form a rotatable swing joint. An indicator such as a blue color may be used to indicate compatibility of the coupling with the conduit.

Abstract: A method for inserting a pipe into a socket and for removing the pipe out of the socket by making usage of a tool are provided herein. The pipe is retainable within the socket by teeth of a grip ring placed within the socket. In at least one embodiment, the method comprises (a) inserting the tool at least partly into the socket mouth into which the pipe is to be inserted, (b) extending the internal diameter of the socket mouth at least over a part of its circumference being smaller than the external pipe diameter when inserting the tool, (c) inserting the pipe into the socket mouth through a tool opening, (d) withdrawing the tool out of the socket, and (e) disengaging the tool from the pipe. Also disclosed herein are method elements for pipe withdrawal. The method elements in combination with the tool help avoid damage to the pipe.

Abstract: The present invention relates to an improved fluid connector for garden use, which is made up of a tube body, a resilient retainer and sleeve. The tube body is provided with a plurality of holes for accommodation of a locking hook respectively and the resilient retainer is peripherally equipped with several pairs of vertical flexible ribs with an expansion space defined therebetween.

Abstract: A remote pipe coupling system includes a first pipe, a second pipe and a pipe coupling. The pipe coupling is adapted to couple the first pipe and the second pipe and it has a loose position and a tightened position. A guide is operably connected to the pipe coupling and the first pipe such that the pipe coupling can move from an open position to a coupled position. The system includes a device to remotely move the pipe coupling along the guide from the open position to the coupled position. The system also includes a device to change the pipe coupling from the loose position to the tightened position.

Abstract: A detachable pipe joint and a method of joining a pipe to a valve, coupling, fitting or the like without requiring a special tool is capable of withstanding the higher fluid pressure typically generated within a larger diameter pipe. The pipe joint includes a retainer body defining a passageway for receiving a pipe, a retainer nut defining a through passageway coaxial with the passageway of the retainer body and the pipe, and a retaining ring positioned within an open end of the retainer body between the retainer body and the pipe. Securing means on the retainer nut engage securing means on the retainer body to compress the retaining ring in a radial direction when the retainer nut is advanced in an axial direction towards the retainer body. The retaining ring has at least one, and preferably a plurality, of inwardly extending projections to retain the pipe within the pipe joint.

Abstract: A threaded union nut is disclosed which includes a body, a threaded opening formed in the body and a web including a plurality of impact openings that are radially offset from a centerline of the threaded opening, wherein the impact openings are adapted to be engaged by a device so as to rotate the threaded union nut. A sliding hammer is also disclosed which includes a guide rod, a structural member coupled to the guide rod and a hammer having an internal bore adapted to receive the guide rod therein. The sliding hammer further includes a flexible cable and a swing handle, wherein the cable is coupled to the hammer and to the swing handle. The hammer is adapted to strike the structural member.

Abstract: A connection device for fluid lines has a housing in which at least one housing recess is formed stepped in the longitudinal direction and merging at an inner end thereof with a fluid duct. An attachment means is fixed in the housing recess and defines a passage opening rendering possible the plugging into position of a fluid line to be connected. A sealing ring is associated with said attachment means. The sealing ring has an inner periphery matching the outline of the fluid line to be connected and being penetrated by the fluid line when connected. A centering section of the housing recess is located axially within the attachment means. An adapter ring is provided able to be inserted into the centering section for bridging over any radial intermediate space present between the outer periphery of the line's end section and the inner periphery of the centering section.

Abstract: A manually operated tool engages and draws towards one another opposed spaced flanges of a repair clamp disposed about a leaking pipe for moving the clamp into position and securely maintaining the clamp on the pipe over the leak allowing plural nut and bolt combinations on the clamp to be tightened in sealing off the leak. A movable handle has attached thereto first and second pivoting arms adapted for respectively engaging a slot within the clamp's first edge flange and the outer edge of the clamp's second opposed edge flange when the handle is in a first non-use position. Moving the handle to a second use position urges the clamp's edge flanges toward one another drawing the clamp securely about the pipe, allowing the clamp's nut and bolt combinations to be tightened. The tool is adjustable for use with a wide range of clamp sizes and pipe diameters.

Abstract: A fitting for a conduit is provided with first and second fitting components, a gripping member, and a live-loading mechanism. The first fitting component is adapted to receive a conduit along a central axis. The gripping member includes a gripping portion adapted to engage the conduit when the gripping member is tightened to the conduit. The second fitting component is adapted to be joined to the first fitting component to provide a seal between the gripping member and at least one of the first and second fitting components. The live-loading mechanism is adapted to hold the gripping portion in live-loaded engagement with the conduit when the first fitting component is separated from the second fitting component.

Abstract: A device for the quick coupling of a pipe fitting (50) to a flanged pipe is described. The device comprises a coupling plate (13) that is rigidly fastened to one end of the fitting so as to be axially approachable to the front of a terminal flange (12) of the flanged pipe, at least three locking wheels (15) rotatable around their own axes and projecting frontally from the plate (13) in circumferentially spaced positions and remotely controllable member (19) for controlling the rotation of the rollers (15) around their own axes. Each locking wheel (15) has round shape with a cut (24) along a circle chord in order to allow in one angular position with the chord facing the axis, and to prevent in all the other angular positions, the passage of the flange (12) of the flanged pipe among the wheels (15) for the reciprocal approach and the movement away of the plate (13) and the flange (12).

Abstract: A manually operated tool engages and draws towards one another opposed spaced flanges of a repair clamp disposed about a leaking pipe for moving the clamp into position and securely maintaining the clamp on the pipe over the leak allowing plural nut and bolt combinations on the clamp to be tightened in sealing off the leak. A movable handle has attached thereto first and second pivoting arms adapted for respectively engaging a slot within the clamp's first edge flange and the outer edge of the clamp's second opposed edge flange when the handle is in a first non-use position. Moving the handle to a second use position urges the clamp's edge flanges toward one another drawing the clamp securely about the pipe, allowing the clamp's nut and bolt combinations to be tightened. The tool is adjustable for use with a wide range of clamp sizes and pipe diameters.

Abstract: An automatically actuated line connection and delivery system is disclosed for the delivery of a cryogenic fluid coolant to tools mounted on manufacturing machines such as vertical and horizontal machining centers, punching presses, thermal spray systems, welding systems, laser cutters, etc. The system includes a linearly-actuated, cryogenic fluid socket/plunger connection “(20)” with a differential, thermal contraction-controlled sealing mechanism, “(22,24)” as well as provisions for installing this connection on automated manufacturing machines “(60,84)” and integrating operation of the connection “(20)” with the manufacturing cycle controlled from a remote control panel “(70)”.

Abstract: A device for connecting components (1, 2, 3) made of fusible plastic, especially pipes (12, 60) of a fuel pipeline or a fuel line to a fuel tank (8) of a vehicle. The device includes a heating element (4) having ends (44, 46) which are used to supply electrical energy. The device is easy to use, simple to mount, and produces a functionally reliable welded joint between the components (1, 2, 3). To achieve this, one component (3) includes a retaining body (16) for a retaining tool (50), and the two ends (44, 46) of the heating element (4) extend onto the retaining body (16) where they can engage contact elements (56, 57) on the retaining tool (50).

Abstract: A fitting for liquid or steam piping, comprising: an elastic sealing ring; a locating sleeve placed around said sealing ring; an internal teethed lock ring located on the locating ring outer end face; an inner ring located outside of the internal teethed lock ring, the inner surface of the inner ring matching with the outer surface of the pipe to be coupled, the inner ring further including a tapered surface and external threads on the outer surface of the inner ring; an outer ring with threads on its internal surface for matching the external thread on said inner ring, as well as methods for connecting pipes using the fitting.

Abstract: A quick-connect cartridge assembly includes a ring, a collar disposed within the ring, and an annular seal coaxially disposed with respect to the ring and the collar. A plug having a shank with an outer diameter substantially similar to the inner diameter of the collar is slidably received within the collar and is held within the collar by a friction fit. The plug is also received through the annular seal so as to establish a coaxial relationship with the ring, the collar and the annular seal. The plug includes one or more features for facilitating installation of the ring, the collar and the annular seal into a port and subsequent removal of the plug from the components after installation.

Abstract: A quick-connect coupling which includes a locking ring (20) disposed in an coupling body to co-operate with a catch surface on a tube fitted into the coupling. The ring is elastically deformable to go between an unlocking configuration and a locking configuration, in which at least one locking zone (30, 32) co-operates with the catch surface. To this end, the ring is provided with at least one unlocking bridge (22, 24) that protrudes through a slot in the body of the coupling. The ring is constituted by a strip that is plastically deformed to have at least the locking zone and the bridge. The ring forms a closed loop and has two ends (20A, 20B) which overlap, and which are suitable for sliding one over the other while the ring is being elastically deformed.

Abstract: A system for coupling conduit sections includes a coupling tool with a pair of lever arms pivotally interconnected and each mounting a clamp assembly. The clamp assemblies are adapted for releasably clamping the conduit sections. A coupling has a generally tubular configuration with a throughbore with multiple annular internal ribs. A coupling method includes the steps of clamping first and second conduit sections with respective clamping assemblies, placing the conduit section ends against the coupling throughbore ends, and squeezing the tool lever arms together whereby the conduit section ends are inserted into the coupling throughbore in fluid-tight sealing and pull-out resistant engagement.

Abstract: A hydrant for use with a plumbing outlet pipe has a fluid passage passing from an inlet end to an outlet end and a retention body connected to the inlet end. A slip clutch adapted to contractibly receive the pipe and prevent reverse pipe movement therethrough is located within the retention body. The slip clutch comprises a retaining ring having a plurality of sloped spring fingers normally allowing pipe movement in a linkage-contracting direction but preventing reverse pipe movement.

Abstract: A conductor torquing system is provided for large diameter threaded conductor casing which comprises a lower chain vise adapted to grip a first joint of conductor casing, a plurality of movable arms operable to apply a retaining force to a second joint of conductor casing to maintain the latter in rotational contact with a spinning means. The spinning means is operable to rotationally make-up the second joint of conductor casing to the first joint of conductor casing to an initial make-up torque value. The apparatus also includes an upper chain vise for gripping the second joint of conductor casing and applying a final make-up torque to the threaded connection. The apparatus will allow a conductor connection to be made-up in a safe and efficient manner and generally assist in reaching the final torque stage more rapidly.

Abstract: A joint used in one of a water inlet or water outlet of a filter cylinder, or a water inlet or a water outlet of a filter casing is disclosed. The joint is a round cylindrical tube and comprises at least one first waterproof washer installed near one end of the round cylindrical tube; an outer thread on an outer surface of the round cylindrical tube and behind the waterproof washer; an opening away from the washer is a round opening and an interior of the round cylindrical tube is formed as a polygonal hole; a front end of the T shape sleeve have a plurality of tapered claws the waterproof washer encloses the front end of the T shape sleeve so as to be expanded by the tapered claws; thereby the round cylindrical tube; and a water tube.

Abstract: An apparatus for of reliably separating the male and female members of a coupling that may be used in high pressure conditions. A release collar (201) has an actuator (301), a release sleeve flange (303), and a ring (305). The actuator (301) is thinner than those utilized in known release sleeves, and may be advantageously located in closer proximity to the male member (101) than to the female member (103), such that the actuator may radially expand between the male and female members. The actuator (301) may be comprised of a cylindrical annulus and/or fingers disposed in a circular pattern. The ring (305) may have a lip (307) that allows the release collar (201) to remain with the female member (103).

Abstract: A culvert band installation tool includes two end plates that are substantially parallel to one another and a bolt to draw the end plates together facilitating the culvert band installation process. The ends plates are maintained substantially parallel to one another by using slip shafts that pass through long sleeves that pass through holes in the end plates. The slip shafts are substantially parallel to the bolt. Indexing pins are installed in the end plates that engage holes in the flanges of the culvert band. A band is installed by using the culvert installation tool to clamp the flanges sufficiently close together to fasten with carriage bolts.

Abstract: A coupling for connecting hydraulic ducts has a first coupling element (1), in the form of a female coupling, with a receptacle (3) and a first locking face (10), and a second coupling element (2), in the form of a male coupling, The second coupling element (2) has an annular groove (9) that forms a second locking face (27) insertable into the receptacle (3). Several locking elements (10) are arranged in the annular groove (9). The locking elements (10) are held in the annular groove (9) and can be pivoted between a locking position and a releasing position. In the coupled condition of the coupling elements (1, 2), the first locking face (24) is axially supported on the second locking face (25). An unlocking sleeve (28) is displaceable between a locking position and a releasing position on the second coupling element (2). By moving the unlocking sleeve (28) from the locking position into the releasing position, the locking elements (10) are displaced from the locking position into the releasing position.