Abstract: An improved metal seal useful in conjunction with a pressure transducer or other pressure device or vessel. The pressure transducer comprises a pressure housing having an open end and having a housing wall. The housing wall preferably has internal threads and has a terminal end. The pressure transducer has a chamber defined by the housing wall of the pressure housing. The pressure transducer has a mating piece which engages the pressure housing, thereby enclosing the chamber. The mating piece has an externally threaded end for engaging the internal threads of the housing. The mating piece employing the invention has an overlap for engaging the terminal ends of the housing wall to prevent the housing wall from expanding and for forming a seal therewith. The overlap prevents the housing walls from expanding due to high pressures contained in the chamber of the pressure housing. Consequently, by using the overlap, pressure transducers having thin walls are able to withstand higher pressures.

Abstract: A pipe joint for self aligning a drill string, tubing string or casing string of the type comprising a plurality of drill pipe, tubing or casing sections arranged in end to end relation from a location above the ground to a lower location adjacent a tool connected to a bottom end of the string and wherein the adjacent ends of the sections are connected to each other to form a plurality of spaced joints extending downwardly from the ground to the tool, the improvement wherein each joint comprises an upper section having at least one downwardly projecting extension and a lower section having a corresponding recess for receiving the extension and wherein the extension and the recess can fit together in only one way.

Abstract: A pipe connecting assembly and method for joining two lengths of steel pipe in the field without the need for welding the connection includes a pair of tubular members both having cylindrical exterior and interior surfaces that substantially conform to the exterior and interior surfaces of the two lengths of steel pipe. At one end of one of the tubular members a male connector is formed. The male connector has a plurality of annular flat and tapered ridges and flat annular surfaces formed thereon. At one end of the other tubular member a female connector is formed. The female connector has a plurality of flat annular ridges and tapered and flat surfaces formed thereon. In employing the tubular members in connecting the two lengths of steel pipe, the ends of the members opposite the male and female connectors are first welded to opposed ends of the steel pipe.

Abstract: A quick-connect coupling for articulating hose lines includes a coupling body having a bore therein which receives a stem attached to a hose to be coupled to the body. A spline is positioned within the bore which receives a spline on the stem so that the stem does not rotate with respect to the bore and coupling body. A collet is provided which has inwardly and outwardly projecting detents that simultaneously engage both a shoulder within the bore and a groove in the stem to prevent axial movement of the stem with respect to the bore. While the stem is thus retained within the bore, an O-ring seals with the surface of the stem. In order to disconnect the stem from the bore, a collet is pressed inwardly to disengage the detents and then the stem is pulled axially away from the coupling member.

Abstract: For coupling first and second metal pipes, a coupling structure is provided which comprises a first diametrically angled end portion of the first metal pipe and a second diametrically enlarged end portion of the second metal pipe. The second enlarged end portion is mated with the first enlarged end portion so that the first and second metal pipes are aligned. A collar member of metal is concentrically disposed within the mated first and second enlarged end portions. The collar member is formed, around an axially middle portion thereof, with an annular ridge which entirely and intimately contacts with inner surfaces of the mated first and second enlarged end portions. A fastening ring of metal is concentrically disposed about the mated first and second enlarged end portions. The fastening ring is so shaped as to have a concave inner surface which intimately and entirely contacts with rounded outer surfaces of the mated first and second enlarged end portions.

Abstract: A filter core unit comprising various number of segments having a wall with a plurality of holes and a means to attach one segment to a second segment whereby the length of the filter core unit can be varied by adding and subtracting segments. A method of connecting one segment to another is also disclosed.

Abstract: A safety retainer assembly is disclosed herein for holding a shaped nut in position on a threaded nipple or the like, which includes an annular body having an internal bore configured adjacent one open end to conform with the shape of the nut and having an external shoulder with a stepped opening or hole for receiving the catch of a retaining pin formed in a rectilinear length of a locking clip. Internal splines are provided adjacent the other open end of the body shoulder adapted to receive mating external splines carried on a collar of the nipple to prevent relative movement therebetween whereby the nut cannot back off from its threaded connection with the threaded nipple. The circular locking clip includes a holding ear or dog on one end fitted into the stepped opening at the opposite end thereof from the seating of the release catch that is carried on the other end of the circular safety clip.

Abstract: In a tube connection, particularly for connecting two tubular elements of the airframe of a substantially tubular a missile, the tubular elements to be interconnected have end portions of substantially identical shapes. Each end portion has a smaller-diameter first circumferential section extending through substantially 180.degree. and a larger-diameter second circumferential section also extending through substantially 180.degree.. The larger-diameter circumferential section of each tubular element overlies the smaller-diameter circumferential section of the other tubular element. The circumferential sections are provided with radial bores for connection screws. Arcuate elements having threaded bores are arranged inside the thus interconnected circumferential sections. These threaded bores are aligned with the radial bores of the circumferential sections and threadedly receive the connecting screws.

Abstract: Mechanical pipe connections are provided by this invention which include an interlocking system between two pipes to be connected within a tubular fitting member. The interlocking system includes male and female portions which mechanically mesh together to form binding contact between the pipes to reduce the individual rotation of the pipes relative to one another.

Abstract: An air gap adapter for use with a water faucet. The air gap adapter has an adapter body with a base portion and an integral riser portion which extends generally vertically upwardly from a rear region of the base portion. The base portion has a hole for a water inlet shank of the water faucet, and the riser portion has brine inlet and outlet bores. The brine outlet bore is vertically oriented in the riser portion, and the brine inlet and outlet bores are open at their upper region. Two barbed connectors are located at a lower region of the adapter body and provide a brine inlet and outlet to the adapter. A venting aperture is formed near an upper region of said riser portion and passes into the brine outlet bore. A cap is positioned on the riser portion above the bores.

Abstract: A mechanical joint tube assembly and method of creating the same is disclosed for providing an improved fluid fitting assembly. A fitting having a primary tapered bore is forced onto a tube that has a larger diameter. The tube is radially contracted in certain portions and is radially expanded in other portions of the fitting in order to create a plurality of compression seals. A collar of the fitting is crimped around the bead that is formed in the tube in order to provide an additional compression seal and means for retaining the tube within the fitting. Alternative forms of the primary bore in the fitting includes a hexagonal shaped configuration, a splined shaped configuration and a slotted collar configuration for enhancing retention of the tube within the fitting. A unique method of manufacturing is used to make these tube fitting assemblies.

Abstract: A fitting includes two glands, each of which has a head with an attached tubing segment having a passage opening through a face on the respective head. A peripheral sealing bead on each head is normal to the axis of the head. Compression means draws the beads toward one another to press them against an intervening gasket to make a seal. A torque suppressor is rigidly mounted to each head, having a tongue with an axially extending complementary edge to contact a tongue on the other torque suppressor to prevent relative rotation of the heads while the compression means is being tightened. Optionally the lengths of the torque suppressor are such as to prevent abutment of the beads unless a gasket is placed between them.

Abstract: The invention relates to a fastener device for fastening to a support plate, the device being constituted by a rider having a first fork whose two branches define an internal outline designed to co-operate with a polygonal element of a junction member to be held so as to prevent said junction member from rotating, and on the other side a second fork whose two branches can be placed astride an extension portion of the junction member, which branches are bent so as to bear both against the other face of the support plate and against a terminal shoulder of the extension portion so as to urge the junction member against the stop face of the plate, thereby holding said junction member against translation.

Abstract: A threaded pipe connection is disclosed for connecting two joints of pipe having externally threaded pin members, one pin member having external right-hand threads and the other pin member having left-hand threads. An internally threaded coupling having right and left-hand threads that mates with the threads on the pin members. An internal pressure seal ring is positioned to provide a seal between the ends of the pin members. A plurality of mating lugs and grooves on the ends of the pin members hold the pins from relative rotation when the connection is being made up. A metal-to-metal seal located between each pin member and the coupling adjacent each end of the coupling isolates the threads of the connection from the ambient environment thus sealing off the pipe annulus from external pressure due to hydrostatic head.

Abstract: A clamping sleeve (12) for joining a pressure hose (14) with a metal braided sheathing with a fitting (10) comprises a tubular metal base member (40) with a first end which faces the fitting (10) and an opposite inlet end. At least in the area of the inlet end, the base member (40) is provided with a hollow cylindrical plastic insert (42) which extends at least to the inlet end of the plastic insert (40) the inner diameter of which in its axially inner end portion with respect to the base member corresponds at least approximately to the inner diameter of the base member (40) in a portion axially adjacent to the plastic insert (42). In the axially outer end portion of the plastic insert (42) the inner diameter of same continuously increases towards the axially outer end in order to prevent notch effects.

Abstract: A low profile locking mechanism for securing a lever arm of a coupler in a locked position interlocks with the side surface of the lever arm. The locking mechanism is formed from low cost resiliently deformable material that is protected against impact by the lever arm.

Abstract: A device for connecting a adhesive foam can to a gun for the application of adhesive foam includes fastening means for fastening the connecting device to the gun, and an external thread for fastening the connecting device to the foam can, and a closing device that makes possible, in the operating state, the escape of the adhesive foam fluid into the gun. The thread has at least two regions of different materials, a first region of a material with flexible anti-adhesion properties and a second region of a material that at least partially ensures precise mechanical guiding of the thread.

Abstract: A threaded joint is provided with a locking mechanism for resisting loosening and over torquing. The joint has splines that are alignable with axially directed fingers, and shear plates that are movable into the spaces between the splines and the fingers. The shear plates may be supported by a shear ring. A lock ring may be provided for maintaining the shear plates between the respective spaces. Another embodiment of the joint has a knurled portion that is alignable with axially directed fingers. The joint also includes a clamp ring engageable with the fingers.

Abstract: Drilling augers comprise a tubular housing having an outer circumferential surface, with helical flighting mounted on the outer surface to effect drilling. Opposite ends of each auger terminate in a socket end connector and a plug end connector, the plug end connector of a succeeding auger received within the socket end connector to provide a connection between the augers. A circumferentially extending gasket seal is provided between the end of the plug end connector and a circumferentially extending rim on the socket end connector to prevent fluids from outside of the augers from leaking into the passage through the augers, and to prevent drilling fluids in the passage from leaking out. Pins carried by the socket end connector engage apertures in the plug end connector to provide a connection between the augers when the drilling string is withdrawn. Plug seals are snap fitted into the apertures and are held therein by a circumferentially extending rim engaging a surface surrounding the apertures.

Abstract: A connecting apparatus for conveyance of cryogenic fluid has a pair of connecting members formed of thermal insulating material. Each has a flange with an axial tubular protrusion and a rim extending over the protrusion so as to form an annular cavity therebetween. Each flange and its protrusion has a central bore. When the two members are fitted together, the combined bore conveys of cryogenic fluid therethrough. The protrusions have overlapping lips with a snug fit to substantially retain the cryogenic fluid in the combined bore. A detachable retainer holds the members in union with an o-ring seal between the rims. The respective cavities form an enclosed cavity that provides thermal insulation between the ring seal and the tubular protrusions for the cryogenic fluid in the common bore.

Abstract: A quick connector for joining pipes having grooved ends has a circlip which is contracted circumferentially and locked in the contracted condition, the inner diameter of the circlip, when in the contracted condition, being less than the outer diameter of the pipe, the inner diameter of circlip and the bottom wall of the pipe groove including surface configurations that are interfitted in the contracted condition of the circlip, and which inhibit relative rotation between the quick connector and the pipe in addition to locking the connector against axial removable from the pipe.

Abstract: A gasket assembly is provided for fluid couplings. The gasket assembly includes a gasket having an outer circumferential surface including arc segments defining a minor outside diameter and a plurality of ears projecting outwardly from the arc segments to define a major outside diameter for the gasket. The gasket assembly further includes a split cylindrical sleeve having a plurality of slots disposed and dimensioned for loosely receiving the ears of the gasket. The sleeve and the gasket are dimensioned such that the ears project outwardly beyond the tube to define gripping protrusions that facilitate mounting and removal of the gasket assembly onto the coupling component.

Abstract: There is provided a tool joint having a box and a pin wherein the box has threads therein; and wherein the box and the pin each are provided with complementary surfaces which engage one another upon threading of the box and the pin together.

Abstract: An improved male luer connector assembly including a central elongated male luer connector tapering from a distal end to a locking collar disposed approximately at the mid-point of the connector. A recessed section is disposed between the first collar and a second collar. Locking teeth are disposed on a proximal face of the locking collar in spaced relation. A threaded lock nut is mountable on the male luer connector. An inner peripheral end wall of the lock nut surrounds the male luer connector and carries a ratchet at an inner end face thereof. In the connection of the male luer connector assembly to a complementary female threaded luer connector, the engaging teeth on the proximal face of the locking collar are drawn into engagement with the ratchet on the inner face of the lock nut to ensure and maintain a locking fluid-tight connection between said male luer connector assembly and the female luer connector.

Abstract: A fuel hose breakaway unit comprising couplers that are held in assembled relation by longitudinally extending fingers that are mounted on the outlet coupler and engage abutment lugs on the inlet coupler. When a predetermined longitudinal separation force is applied to the couplers, the fingers flex outwardly to a release position, permitting the couplers to separate. The fingers are provided by finger sets, each of which is provided with three fingers. A locking collar locks the bases of the finger sets onto the outer surface of the housing for the outlet coupler.

Abstract: A quick release for a vacuum cleaner having a nozzle and a wand for providing suction to the nozzle comprises a tubular connector to be received by the nozzle. A resilient latch on the wand is received in an opening in the tubular connector to secure releasably the wand to the tubular connector. A biased sleeve is movable axially along the tubular connector. The sleeve has a cam surface to urge the latch inwardly to an extent to clear the opening against the bias when the sleeve is moved axially to permit the withdrawal of the wand from the tubular connector.

Abstract: In the present invention there is provided, a pipe connector for use in tendons, risers or other pipe connections. The pipe connector comprises a tubular pin member and a tubular box member. The tubular pin member has a frusto-conical outer peripheral surface, an inner axial end and outer axial end. The tubular box member is telescopically engageable with the pin member and has a frusto-conical inner peripheral surface that further has an inner axial end and an outer axial end. The frusto-conical inner peripheral surface of the tubular box member corresponds to the frusto-conical surface of the pin member and overlies the frusto-conical surface of the pin member when the members are engaged. There is provided annular projection and groove means in the frusto-conical surfaces of the pin member and the box member that interengageable to axially lock the pin member and the box member together. A system for assembling tension-leg pipes using the claimed connector is also provided.

Abstract: A gasket assembly is provided for fluid couplings. The gasket assembly includes a gasket having an outer circumferential surface including arc segments defining a minor outside diameter and a plurality of ears projecting outwardly from the arc segments to define a major outside diameter for the gasket. The gasket assembly further includes a split cylindrical sleeve having a plurality of slots disposed and dimensioned for loosely receiving the ears of the gasket. The sleeve and the gasket are dimensioned such that the ears project outwardly beyond the tube to define gripping protrusions that facilitate mounting and removal of the gasket assembly onto the coupling component.

Abstract: The pipe 1 includes in one end portion thereof a metal cap portion 2 on which an O-ring 5 can be mounted, and a connecting portion 6 in the other end portion. A delivery pipe 9 includes a communication hole having an undercut shape and an engaging recessed portion 21. A fixing clip 21 including a mounting portion 16 and a securing portion 17 having rigidity is mounted on the portion of the pipe 1 located just above the metal cap portion 2. The securing portion 17 includes a plurality of securing claws 18 so arranged as to surround the metal cap portion 2, and a rotation preventive projection 19. When the metal cap portion 2 is fitted into the communication hole 12, the securing claws 18 are secured to the upper hole portion 14 of the communication hole 12, and the rotation preventive projection 19 is engaged with the engaging recessed portion 21.

Abstract: A hose assembly, an internally threaded member therefor and methods of making the same are provided, the hose assembly comprising a flexible hose having opposite ends, an internally threaded member mounted on one of the opposite ends in a manner to swivel thereon to permit the internally threaded member to be finger coupled to an externally threaded part of a liquid dispensing spigot, the internally threaded member having an outer peripheral surface, and an annular member disposed around the internally threaded member in a manner to engage the outer peripheral surface thereof and having an external peripheral surface to be finger engaged for turning the internally threaded member in unison therewith relative to the hose, the annular member comprising a SANTOPRENE material.

Abstract: A coupling device especially adapted for the joining of polyethylene underground irrigation hoses, having a female portion, a male portion and a lock cap, the female portion having a threaded nipple for insertion into a hose end, the male portion likewise having a threaded nipple for insertion into a second hose end and several lugs that fit into grooves in the lock cap, enabling the male portion to be pulled out of the assembly for a limited distance, for ease of fitting into difficult hose coupling situations. The presence of the lugs prevents rotation of the male portion with respect to the cap until the male portion is pulled out of the assembly far enough that the lugs are pulled past the end of the locking cap.

Abstract: A panel mounted feed-through connector assembly for interconnecting flexible pneumatic hose lines, such as used on air brakes for trucks and other vehicles, has a rigid plate with a plurality of apertures, and a separate and removable feed-through connector is formed with a tubular sleeve and is formed with tabs with interfit with projections formed on the rigid plate so that the connector may be twisted and locked into position. Mutual detents formed on the plate and on the connector cooperate to interlock the connector with the plate.

Abstract: An underwater pipeline is disclosed that arrests the propagation of a collapse or buckle that may occur as the pipeline is being laid or after the pipeline is in service. The pipeline comprises a plurality of joints of pipe connected end-to-end by a threaded connection. Each connection includes external cylindrical threads of opposite hand on adjacent ends of the pipe joints. A coupling having right and left-hand threads for moving the ends of the pipe joints into abutting position in sealing engagement with a seal ring to seal the connection. The connection provides a physical discontinuity in the pipeline to stop the propagation of a buckle in the pipeline. Additionally, by virtue of the thread profile, the coupling may provide radial support to the pin members to resist collapse.

Abstract: Failure of push-to-connect couplings which, for example, connect reinforced hoses to ports in valve bodies is prevented by an anti-rotation collar. The ports have a projecting external hex nut fixed to the valve body. A rigid tube is received within the push-to-connect coupling which in accordance with a first embodiment, has fixed thereon a collar with a pair of arms having flat surfaces which engage opposed flats on the hex nut. In accordance with the second and third embodiments of the invention, the anti-rotation collar has a projection, such as a pin, which is received in a hole fixed in the valve body. The collar has a hexagonal recess therein which receives a hexagonal projection from the rigid tube which prevents rotation of the collar with respect to the tube.

Abstract: A malleable tube is assembled to a rigid fitting by placing the end of the tube over one end of the fitting which has a barb with a locking face facing away from the end of the fitting and a sloping face facing the end of the fitting, the tube is gripped with jaws which have an inward nose projection of a small axial extent and this nose projection grips the tube at about the end of the fitting, force is applied between the fitting and the jaws to relatively move the fitting and tube longitudinally into the jaws until the nose projection has relatively moved past the barb on the fitting.

Abstract: A three-piece air horn assembly is provided including a die cast base configured for attachment to a vehicle, an intermediate tube, and a die cast bell, which pieces are interconnected by mechanical connections. In particular, the base includes a cylindrically-shaped hole with front and rear shoulders at each end, the rear shoulder being circumferentially non-uniform, and the tube includes a circumferentially extending ridge engaging the front shoulder and a flared end engaging the rear shoulder. The tube is extended into the hole in the base and the end is then flared into engagement with the non-uniform rear shoulder. Engagement of the flared end into the non-uniform rear shoulder prevents rotation of the tube on the base while the engagement of the flared end and the ridge with the front and rear shoulders, respectively, provides an axially secure connection.

Abstract: A coupling for transferring torque and axial force from a first member to a second member. The coupling includes a first cylindrical member having an outer peripheral surface and an end portion and a second cylindrical member having a receiving end portion. The receiving end portion has an end face with a longitudinal bore in the receiving end portion for receiving the end portion of the first cylindrical member. The end portion of the first cylindrical member has a plurality of transverse keyways in the outer peripheral surface. The receiving end portion of the second cylindrical member has a plurality of transverse slots in the receiving end portion corresponding to the plurality of transverse keyways. A key is received in each transverse keyway and protrudes from each transverse keyway into the corresponding transverse slot. A retainer ring has a bore such that the retainer ring extends over the plurality of transverse slots of the receiving end portion of the second cylindrical member.

Abstract: A fluid coupling bracket adaptable for snap-on engagement with a coupling base. The fluid coupling bracket has tabs that engage with an annular groove of the fluid coupling base, and a plurality of teeth that set against radially extending ledges protruding from the external surfaces of the base and adjacent to the annular groove. The bracket has an extending flange portion having various size U-shaped recesses for fixing the bracket in supporting relationship with the fluid line.

Abstract: A pipe connecting structure is provided to mutually join tubes, and includes a pair of flanges formed at end surfaces of a pair of pipes to be connected so as to be opposed to one another, a back-up ring interposed between the pair of flanges, a projection of the back-up ring into which the pair of flanges are fitted, and a rubber packing provided for an inner periphery of the back-up ring to be expanded and deformed in response to internal pressure of the tubes. In the pipe connecting structure, the pair of flanges are brought into pressure contact with the rubber packing and the pair of pipes are coaxially supported by clamping a housing by clamping measures.

Abstract: An adapter for coupling a pair of pipe elements through an opening formed in a wall includes a flange mounted thereon. The flange is pivotable relative to the adapter, whereby the flange automatically compensates a non-uniform thickness of the opening.

Abstract: A pipe joint for fiber reinforced composite pipe has internal and external matching tapers with a low taper angle. A half round helical groove is formed in each of the internal and external tapers for receiving several turns of a ductile key. Deformation of the key in shear redistributes longitudinal loads along the length of the pipe joint. The outer member of the pipe joint has a high stiffness so that internal pressure in the pipe presses the tapered surfaces together so that the resulting friction enhances the longitudinal load carrying capability of the joint. High external stiffness may be provided by winding the external moiety of the joint with high modulus of elasticity fiber. The pipe joint is sealed by introducing a liquid ductile thermosetting sealant between O-rings at the inner end of the joint. The seal can be nondestructively tested and deployed under water before the sealant cures.

Abstract: A rotative joint for a pneumatic air pressure control assembly having a body having at least one air outlet, an externally, threaded projection and a set nut arranged thereon to fix the assembly to a shaft end of a vehicle, and a kinematic shaft coaxially and internally disposed in the body and which is supported in a pair of bearings that enable relative motion between the shaft and the body. The shaft is positioned by a conventional set collar and elastic ring and is hollow for allowing pneumatic connection between an inlet defined in its external end and the air outlets of the body. The body further includes an internal air chamber aligned with the air outlets and disposed between a bottom wall of the body and the internal end of the kinematic shaft, and pneumatic sealing structure provided in the air chamber for assuring air pressurization through the air outlets. The pneumatic sealing is achieved by a sealing element obtained by a material with low friction properties and high resistance to the wear.

Abstract: An improved axially split clamp for preventing rupture of the O-ring seal of Ford Spring-Lok fittings even when the outside diameter of the Spring-Lok fitting is oversized. Each mirror-image half of the axially split clamp includes a semi-annular surface sized to fit snugly over the cage of the Spring-Lok pipe and also a semi-circular surface positioned to encircle that portion of the Spring-Lok push-on fitting over the coupling's O-ring seal. A flat-sided groove is cut in each semi-circular surface and a ribbon-like strip of rubber or other resilient material is inserted into the groove. The strip's thickness is about twice the depth of the groove so that when the two halves of the clamp are screwed together, the resilient material will firmly grip the outer diameter of the push-on fitting and thereby prevent back and forth transverse movement of the Spring-Lok fitting, prevent wear and failure of the O-ring seal and prevent the escape of fluid from the Spring-Lok coupling.

Abstract: The coupling assembly includes a first pipe and a second pipe connected by a middle sub splined to an outer sleeve. Each pipe includes a tubular body having a first axis and a threaded pin end with a second axis. The middle sub includes threaded boxes on each end with a center seal bore. The threaded boxes of the middle sub threadingly engage the pin ends of the first and second pipes. The threads on one pin are right-handed and the threads on the other pin are left-handed such that upon rotation of the middle sub and outer sleeve, the pins and boxes will threadingly engage upon the rotation in a common direction. The boxes and pin ends have a common axis. Each of the terminal ends of the first and second pipes include dogs which intermesh upon connection of the coupling for the transmission of The axes of the first and second pipes are at an angle with the common axis so as to cause an offset angle between the first pipe and the second pipe.

Abstract: A windshield washing system, especially for motor vehicles, is provided with a wiper shaft, on which a wiper arm can be non-rotatably fastened and which wiper shaft includes an axial bore in order to receive a line made from form-stable plastic material with at least one channel, through which at least one washing nozzle moving in pendular motion with the wiper arm during the wiping process can be provided with washing liquid. In order to ensure that the wiper shaft takes along the line, the line is form-fittingly connected with the wiper shaft in the swivelling direction of said wiper shaft at the end of the wiper shaft turned away from the wiper arm.

Abstract: There is described a method and apparatus for connecting the end of coiled tubing to a downhole tool string, comprising a first tubular housing having a first uphole and a second downhole end and a bore formed therethrough for a length of coiled tubing, a second tubular housing adapted for releasable connection to the downhole end of the first housing, the second housing having a first uphole and a second downhole end and a bore formed therethrough for receiving the length of coiled tubing at least partially into the second housing, slips adapted to at least partially surround the coiled tubing and having on an inner surface thereof raised projections for penetrating a contiguous surface of the coiled tubing for connection thereto, the slips additionally including connectors to interlock with cooperating connectors on the second housing for a non-rotatable torque transmitting connection therebetween, and a force transmitting member disposed between the slips and the first housing to maintain the slips in comp

Abstract: A fitting suitable for coupling a plastic pipe to an externally threaded metal element, such as a sprinkler head, comprises a coupling, an external, metallic reinforcing collar on the coupling, an internally threaded insert in the coupling, and an O-ring. The collar is shaped to prevent rotation, and is held in place by a lip on the insert. The O-ring is held in a chamfered recess on the external surface of the insert.

Abstract: A method for joining spirally wound thermoplastic pipes is disclosed. The method includes providing a first spirally wound thermoplastic pipe and a second spirally wound thermoplastic pipe, wherein each thermoplastic pipe includes a spirally wound hollow profile. The method further includes placing the end of the first thermoplastic pipe against the end of the second thermoplastic pipe such that a gap having a step is formed between the end surfaces, applying a stainless steel band over the gap and heating the steel band, positioning an extruder and a slide and smoothing organ inside the thermoplastic pipes, heating the end surface of the first thermoplastic pipe and the end surface of the second thermoplastic pipe with a heating means, and extruding melted thermoplastic from the extruder and into the gap between the end surfaces and applying pressure to the melted thermoplastic with the slide and smoothing organ.

Abstract: A pipe fitting or coupling is used for connecting at least two pipes. The pipe fitting is basically formed of a coupling main body and a slit ring integrally formed together. The coupling main body is formed of an inner layer of good heat resisting property, an intermediate layer containing glass fibers, and an outer layer having large tensile elongation and impact strength. The slit ring is formed at an edge portion of the outer circumferential surface of the coupling main body.

Abstract: The radially deformable pipe of the invention is made up of at least two sections releaseably coupled end to end. The end of one of the sections has, over a predetermined axial length, an internal perimeter substantially equal to the external perimeter of the end of the other section, so as to form a male end adapted to be inserted in a female end. The extreme margin of the male end includes a locking bead adapted to fit in sealed manner in an internal groove of the female end behind a locking bead including the edge of this groove (9). The extreme margin of the female end is fitted into an external groove of the male end spaced from the locking bead by the said axial length.