Abstract: A repair fitting is provided for sealably connecting ends of a pipeline, when a damaged section of the pipeline has been removed. In a preferred embodiment, the pipeline ends are connected using the repair fitting with two stab fittings. The repair fitting includes a first and second piston and a first and second cylinder, wherein the first piston is slidable in the first cylinder and the second piston is slidable in the second cylinder. In an alternate embodiment, two fusion joints are used with the repair fitting to sealably connect the ends of the pipeline. A method is provided for making a repair fitting and a method is also provided for repairing a damaged section of a pipeline.

Abstract: The invention pertains to a tubular threaded joint provided with a device opposed to over-screwing or unscrewing. The joint includes a male component (3) with an external threading (8) and a female component (2) with internal threading (6), these two components capable of being assembled with predetermined amount of torque. A female portion (7) arranged beyond the female threading (19) and a male portion (13) arranged beyond the male threading (12) provide between their internal surface (14) and external surface (15) an annular zone in which one part at least forms a calibrated zone (20) in which an adhesive ensures mechanical connection between the female portion (7) and the male portion (13). Use of the joint particularly for the oil and gas industry.

Abstract: There is disclosed a process for bonding a rigid thermoplastic vessel to a flexible thermoset elastomeric conduit using electromagnetic bonding techniques wherein the flexible thermoset elastomeric conduit is configured to provide close fitting relationship under compressive pressure forces to a cooperating element of the rigid thermoplastic vessel between which is positioned an electromagnetic bonding adhesive prior to applying an electromagnetic force.

Abstract: A connection system for pressure resistant screwed pipe joints with a retention body, a coupling ring, a pipe and a sealing ring is characterized in that an elastomeric high-pressure seal is provided in the form of a first elastomeric sealing element placed between the face of the retention body and the sealing ring and a second sealing element placed between a face of the sealing ring facing the pipe and the outer wall of the pipe.

Abstract: A fume exhaust duct joint, a clamping collar for clamping two cylindrical dual-laminate duct sections joined by an internal slip collar, and a method for assembling the joint. A first embodiment of the clamping collar has two clamp portions each including a metal outer skin spot-welded to a metal inner skin. The inner skins have bifurcated protrusions whose bifurcations penetrate the duct section outer surfaces when the collar is tightened, and, optionally, two circumferential beads of fire retardant caulking. The inner skins and slip collar are bonded to duct section surfaces using a putty-like sealant including a settable admixture of curing agent and novolac epoxy resin. A second embodiment of the clamping collar, preferred for duct sections 3-inches in diameter or smaller, has a single circumferential clamp portion.

Abstract: The present invention provides a saddle-less fitting having a stepped outer wall surface. The stepped outer wall surface includes a first and second surface and a step. The step includes a first bowed band surface extending from the first outer wall surface a predetermined distance inward towards the inner wall surface. The fitting further includes an insertion portion which includes the second outer wall surface and a second bowed band surface. The first bowed band surface and the second surface are bonded to a prepared pipe with a bonding agent. A more liberal application of the bonding agent may be employed to cause the other fitting and pipe surfaces to further bond together. Once the bonding agent hardens, or becomes cured, a unitary structure is formed which provides a leak-free tap.

Abstract: A valve having a purging apparatus includes a valve body having a defined passage that is aligned along an axis of the valve body. A conduit having an axis passing downwardly through the valve body and in communication with the passage forms an angle with the axis of the valve body. A slit is formed in the valve body about the axis of the conduit to establish a housing integral with the valve body. The slit surrounds and isolates the housing and a portion of the conduit from the valve body to a given depth and includes a depth and a width such that the housing is isolated from stresses induced in the valve body. A tubular element is joined to the housing in axial alignment with the conduit and is inserted to a depth that is less than the given depth of the slit. The valve is purged through the tubular element via the conduit.

Abstract: The bayonet attachment on the cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part means, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment the lugs and cutouts are of different widths for the coded alignment of the mixer or accessory to the cartridge in one predetermined position only.

Abstract: The present invention relates mainly to a method of making an endpiece, to an endpiece and a connector made by said method, and also to a circuit including such a connector. According to the invention, a single gasket is provided which serves simultaneously to ensure sealing between a tubular duct and an endpiece-forming sleeve, and also between the male and female endpieces of the connector. The present invention is applicable to making a fluid circuit, in particular in the automobile industry. A main application of the present invention lies in making connectors for air conditioning circuits or oil circuits in motor vehicles.

Abstract: A ferrule includes a tubular wall and end wall which is divided into radially extending fingers, each of which terminates at a barb member formed by deflecting a tapered end portion of the finger. The end wall fingers extend orthogonally to the longitudinal axis of the tubular wall and the barb members are each inclined at an acute angle to the carrying fingers and axis such that when a tubular body, such as a braided or like textile sleeve, is received in the tubular wall and the end all is swaged to cause the fingers to enter the body and lie flat against the tubular wall, the bars are caused to penetrate the body and be flattened by the tubular wall to point in the direction towards the body end and inhibit its removal. The tubular wall may be circumferentially continuous (annular) or discontinuous (slit) and openable.

Abstract: A method for producing a microfluidic coupler includes the step of producing a first mask on a top surface of a wafer. The first mask defines an insertion channel pattern selected to correspond to the cross sectional shape of a capillary. The wafer is etched through the first mask to form an insertion channel. A second mask is produced on a bottom surface of the wafer. The second mask defines a subchannel pattern selected to match the diameter of the bore of the capillary. The wafer is etched through the second mask to form a subchannel connected to the insertion channel. The capillary is inserted into the insertion channel such that the capillary is in fluid communication with the subchannel. In one embodiment, a capillary guide is secured to the wafer to facilitate insertion of the capillary into the insertion channel. The capillary guide has a tapered guide channel aligned with the insertion channel for guiding the capillary into the insertion channel.

Abstract: A joint which is a cylindrical body having an inner circumferential surface, a diameter of which is larger than any of outer diameters of two pipes to be connected, the cylindrical body being provided with an annular projecting strip portion formed in an approximately axially intermediate portion so as to project radially inward, first and second cylindrical portions respectively disposed on opposite sides of the annular projecting strip, annular projecting portions projecting radially outward so as to form annular space portions in approximately intermediate portions of the first and second cylindrical portions respectively, and through holes formed respectively in the annular projecting portions for injecting a foamable and curable liquid agent.

Abstract: A connection of steel pipes for conveying solid materials, particularly for conveying gravel, includes radially directed coupling flanges which extend circumferentially at the ends of the steel pipes. The coupling flanges have receiving bores for the coupling bolts, wherein the receiving bores extend parallel to the longitudinal axes of the steel pipes and are arranged on a pitch circle. At least one wear ring is inserted between the end faces of the steel pipes which face each other. The wear ring is of a material which has a greater resistance to wear than the material of the steel pipes.

Abstract: A square or circular apron formed of plastic coated disk-like sheet metal or fiber-metal reinforced synthetic material is bonded to a circular ring gasket having a surface conforming to the upper mating surface of an existing roof drain flange. Reinforcing rib depressions are formed in the apron outer region. The apron extends for a major radial extent beyond the periphery of the drain flange and with the gasket is clamped to the drain flange via existing bolt holes in the drain using stainless steel or bronze replacement bolts. Screws clamp the apron and the underlying roof membrane, which may be bonded to the apron to form a water tight seal, to the deck. A metal clamp ring may be used to clamp the apron and gasket to the drain flange. Various embodiments are disclosed.

Abstract: A connector assembly includes a first fitting defining a first aperture, and a second fitting couplable to the first fitting and defining a second aperture. In some embodiments, each of the first and second fittings includes a sealing layer sealing its aperture. In other embodiments, each of the first and second fittings includes a removable layer overlying its aperture. The connector assembly may include a stem member which is mounted in the first fitting and includes a head axially movable into the aperture of the second fitting.

Abstract: A pipeline is made by joining a number of pipe sections, each of which includes an inner pipe structure and an outer pipe structure. The outer pipe structure, which may be zinc plated or encased in an protective elastomeric material, includes mating couplings at each end to fasten similar sections together end to end. The inner pipe structure includes a hole extending throughout the pipeline and means for sealing around the hole at each joint. The inner pipe structure is resiliently mounted within the outer pipe structure. The outer pipe structure of each pipe section extends in both directions past the ends of the inner pipe structure.

Abstract: A pipe connector has a coupling with a first cylindrical land, a second cylindrical land, and a third cylindrical land. There is a first annular recess defined between the first cylindrical land and the second cylindrical land, and a second annular recess defined between the second cylindrical land and the third cylindrical land. A gate channel communicates between the two recesses through the second cylindrical land. Circumferential seals extend around the first and third cylindrical lands. A cement injection port communicates between the outside of the connector and the first recess, and a cement vent port communicates between the outside of the connector and the second recess. In use, a pipe is inserted into the coupling to rest upon the three lands, and cement is forced into the injection port. The cement flows circumferentially around the first annular recess, through the gate opening, circumferentially around the second annular recess, and out through the vent port.

Abstract: In connecting a flushing port (2) of a toilet stool (1) which is formed so as to face the floor surface to which the toilet stool (1) is installed to a drainpipe (3) of the building, the connection is made by means of a flushing-side connecting pipe (6) which connects to the flushing port (2), a drain-side connecting pipe (7) which connects to the drainpipe (3), and a linking pipe (8) which makes connection between the above-noted two pipes. In making the pipe connections, the linking pipe (8) is cut off in accordance with the distance between the flushing port (2) and the drainpipe (3) or pipe insertion overlap can be used to adjust the length of the linking pipe (8).

Abstract: A fluid hydrant has an outlet with a threaded outer surface, and a backflow preventor is mounted on the inlet of the hydrant. The backflow preventor has an inlet and outlet end. Male hose threads are formed on the exterior of the outlet end of the backflow preventer. Interior female threads are on the inlet end thereof. A bushing adapter is interposed between the inlet end of the backflow preventor and the threaded nozzle of the hydrant with the threads connecting the adapter and the backflow preventor being of a size different than the threads connecting the adapter and the threaded nozzle of the hydrant. The bushing adapter extends over the threaded outer surface of the outlet of the hydrant, and a locking cement between the threaded outer surface of the outlet of the hydrant and the interior female threads on the inlet end of the bushing adapter rigidly fix these threads together.

Abstract: There is disclosed a process for bonding a rigid thermoplastic vessel to a flexible thermoplastic conduit using electromagnetic bonding techniques wherein the flexible thermoplastic conduit is configured to provide close fitting relationship under compressive pressure forces to a cooperating element of the rigid thermoplastic vessel between which is positioned an electromagnetic bonding adhesive prior to applying an electromagnetic force.

Abstract: A discharge hose adapter adapts a standard marine thru hull fitting to a standard sanitation hose enabling discharge of a boat holding tank into a dump station. The adapter preferably includes a first component and a second component. The first end of the first component is frictionally engageable with the standard marine thru hull fitting, a first end of the second component is engageable with the second end of the first component, and a second end of the second component is engageable with the sanitation hose. The first component is preferably PVC injection molded plastic, and the second component is preferably compression molded rubber derived from vinyl monomers.

Abstract: Methods for installing liners in metal pipes incorporating the embodiments of this invention are disclosed. Liner (30), pulled through the pipe, is cut back to the correct position in socket (22) and pin (36). Socket clamp (32) or pin clamp (42) is placed over extrusion rod (78) of reverse calibration machine (60). Liner clamp mandrel (76) is installed behind the clamp. First hydraulic cylinder (64) and second hydraulic cylinder (66) in reverse calibrator frame (62) are activated to move extrusion rod (78). The tapered surface of liner clamp mandrel (76) comes in contact with the clamp, expanding the clamp walls as the hard tool steel of the mandrel contacts the softer steel of the clamp. Liner clamp mandrel (76) passes fully through the clamp completing the installation. Liner (30) is locked between socket clamp (32) or pin clamp (42) and the inside wall of the calibrated section of socket (22) or pin (36).

Abstract: Multilayer fluid conduits are formed by adhering to a tubular outer surface of a metal pipe, a thermoplastic outer layer. The outer layer permits ends of the multilayer conduit to be joined together in leak-proof fluid conduit systems simply by adhering the conduit ends with compatible thermoplastic fittings. For fire protection systems, the preferred metal is steel, the preferred thermoplastic is CPVC and the preferred adhesive is heat activated. The adhesive coated metal pipe is preheated and the CPVC is extruded onto the outer surface of the heated metal pipe. Through the use of fire resistive CPVC, the multilayer conduit systems of the present invention can be installed in more severe fire threat areas than can existing, all plastic piping, including all CPVC piping systems. The conduit is assembled into systems on site simply by cutting and direct bonding with ordinary, all plastic fittings using appropriate bonding agents such as solvent based adhesives.

Abstract: A heat recoverable article for sealing splices having substrates of disparate size. The heat recoverable article includes a first heat shrinkable sleeve having an adhesive which extends over at least part of its interior surface and a second heat shrinkable sleeve which overlaps an end of the first sleeve. The second sleeve begins to recover before the first sleeve and holds the first sleeve in place as recovery continues, eliminating milk off.

Abstract: A flangeless pipe joint for polymer-lined piping in which the piping is joined by a coupling and the lining is slip, loose, interference or swaged fitted into the pipes and joined at the ends thereof against relative movement.

Abstract: A connector for a composite pipe includes a male conical member to be inserted between inner and outer layers of the pipe. The outer layers have oppositely wound composite strips which are overlapped along the conical surface. The ends of the strips are braided and a cup located over the conical surface. A filler is injected between the cup and conical member to fill the voids formed between the overlapping strips.

Abstract: A pipe connector has a coupling with a first cylindrical land, a second cylindrical land, and a third cylindrical land. There is a first annular recess defined between the first cylindrical land and the second cylindrical land, and a second annular recess defined between the second cylindrical land and the third cylindrical land. A gate channel communicates between the two recesses through the second cylindrical land. Circumferential seals extend around the first and third cylindrical lands. A cement injection port communicates between the outside of the connector and the first recess, and a cement vent port communicates between the outside of the connector and the second recess. In use, a pipe is inserted into the coupling to rest upon the three lands, and cement is forced into the injection port. The cement flows circumferentially around the first annular recess, through the gate opening, circumferentially around the second annular recess, and out through the vent port.

Abstract: A tank tee unit is formed from a plurality of standard pvc pipes secured together only by a suitable glue. It includes a main pipe of heavy wall pvc sandwiched between and glued to two heavy wall pvc pipes extending perpendicularly therefrom which are in turn each glued to a standard smaller diameter pvc pipe that passes entirely through the main pipe to form an extremely strong joint. This provides a unit in the form of a cross with outlets on opposite sides of the main pipe and with thick wall branch lines that can be tapped for other side connections. One side outlet can be plugged to provide a strictly tee unit.

Abstract: A seal system for joining the ends of two generally rectangular duct sections, including two frames secured to each other with a seal and attached to their respective duct end sections. The frame members each include four flange portions and four corner pieces. Each flange portion has an upstanding channel shaped leg portion and an angularly extending duct receiving leg portion. A corner piece connects adjacent flange portions to form the generally rectangular frame. The end portions of the ducts are inserted into longitudinal openings of the duct receiving leg portions. A seal, having four angular corner pieces and four linear pieces, is positioned between the frames to connect the duct sections. The overlap of the angular corner pieces and the four linear pieces establishes an effective seal to prevent air within the duct from escaping.

Abstract: The method of joining a coupling member to a pipe end is described. The method is particularly concerned with providing a coupling member on the end of a pipe of composite construction formed from a plurality of helically wound reinforcement strips of steel. The method comprises the steps of forming at least one generally circumferentially directed groove in the outer surface of the pipe wall adjacent the end of the pipe to a depth extending into the reinforcement core, providing a coupling member adapted to fit the end of the pipe overlapping the region of the groove or groove, providing key means to extend between said sleeve and said groove in said pipe, providing a curable resin in the joint area between said pipe and said sleeve and curing said resin to bond said coupling member to said pipe end. The resultant coupling is of increased efficiency in providing both an adhesively bonded and mechanically coupled joint.

Abstract: A device for clamping a hose end section that is fitted onto a pipe end section includes a hose clamp surrounding a hose end section. The hose clamp has overlapping end sections, each of which has an approximately radially outwardly extending tensioning jaw. A securing ring is fixed to the hose end section and has a radial projection. The securing ring surrounds the hose end section and is disposed between the hose end and the hose clamp. The securing ring is joined to the hose clamp in an area diametrically opposite to the area of overlap of the end sections of the hose clamp. The securing ring has a recess disposed in a radial projection. An approximately U-shaped clip has a cross-piece and a pair of legs depending from the cross-piece. The U-shaped clip is disposed such that, in the tensioned state, the legs of the clip overlap the tensioning jaws of each of the end sections. The U-shaped clip has a hook depending from the cross-piece that is radially engaged in the recess.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure and a clamp fastened to one of the opposite ends of the hose by the fastening structure for substantially circumferentially and radially inwardly clamping the one of the opposite ends of the hose onto a member that has been inserted into the one of the opposite ends of the hose, the fastening structure comprising a tubular arrangement of elastic material disposed in stretched relation over and against part of the clamp and having opposite annular side sections, one of the side sections of the fastening structure having a part thereof disposed outboard of the clamp and having been secured against the one of the opposite ends of the hose to hold the clamp thereon in a predetermined rotational and axial position relative thereto.

Abstract: The invention relates to a method for laying a pipe-line, wherein pipes are welded to each other along a ring weld and wherein the ring weld is covered with a mastic ring.In the known method of this type the mastic of asphalt bitumen is melted and cast into a mould arranged round the ring weld.Working with a hot substance (180.degree. C.) is dangerous. The vapours from melted asphalt bitumen create an unpleasant and unhealthy work climate. The quality of asphalt bitumen deteriorates the more melted it becomes.The invention has for its object to provide a method wherein the above stated and/or other drawbacks occur either at least to a lesser extent or not at all. To this end the method according to the invention has the feature that the mastic is arranged substantially in plastic condition around the ring weld.

Abstract: An interconnection system for pipelines and other oil country applications enables the parent metal of internally coated or lined pipe to be free of thermal and mechanical stresses that degrade the coatings or linings. A male member having an internal lining and a female member into which the male member is to be fitted each have internal circumferential grooves into which open loop snap rings are locked. By arranging grooves and snap rings of progressively changing axial lengths, a number of rings are deployed in a given installation, since rings preinstalled in the female member pass over smaller grooves in an inserted male member until all contrast into position at the same time. In a pin and box combination, the nose ends of the pins compress a central seal ring that is internally flush with the pin linings. The central seal and O-rings seated in the box and engaging the pins block passage of internal presurgical gases and corrosive materials.

Abstract: A duct coupling pad for joining flexible ducts includes an outer section surrounding a central opening. An adhesive coating is applied to one surface of the coupling pad for adhering the pad to a first one of the ducts to be joined. An opening is formed in the first duct within the area of the central opening of the coupling pad. Securing tabs integrally formed with the outer section of the coupling pad are folded inwardly into the opening in the first duct and adhered to the inner surface thereof. The coupling pad binds the edge of the opening in the first duct to prevent splitting and tearing of the linings. A collar is inserted into the central opening of the coupling pad and the second duct is connected to the collar.

Abstract: The present electrical conduit coupling includes an electrical conduit coupling 10 and a lubrication fitting 11 thereon. The coupling includes a hollow body 12 including an external surface 13 and an internal surface 14. The internal surface defines a central bore 15 extending between first and second open ends 17, 19 that are adapted to receive conduit ends. A thickness dimension exists through the hollow body between the internal and exterior surfaces 13, 14. The lubrication fitting 11 is provided on the hollow body 12 between the first and second ends 17, 19. The fitting 11 extends at least partially through the thickness dimension to communicate with the central bore 15. The lubrication fitting 11 includes an internal one way valve 31 that permits injection of a lubricant into the central bore 15 but automatically closes to prevent reverse flow of lubricant outwardly through the fitting 11.

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 capillary column connector assembly includes a pair of body members fabricated from a resilient, inert ceramic having high compressive strength. Each body member has an inwardly tapering longitudinal throughbore within which the end of a capillary column can be inserted by press-fitting. A split sleeve holds the two body members in mutually facing alignment with inner end surfaces in compressed mutual contact. The inner end surfaces are slightly radiussed in order to deform upon compression and provide a fluid-tight seal surrounding the junction between the inner ends of the longitudinal bores, thereby eliminating the need for any separate sealing gasket.A mechanical assembly comprising an inner spool, an outer housing, a spring, and a bearing-mounted support provide axial compression forces tending to urge the ceramic body members into mutual facing contact with the radiussed surfaces deformed.

Abstract: A method and article for sealing a manhole riser, a catch basin, and a pipe juncture. The method is an economical process whereby elastomeric bands are placed around a manhole riser, a catch basin, or a pipe juncture and effectively seals the manhole riser, catch basin, or pipe juncture from loss of water or infiltration of water and other contaminants.

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: The step of soldering, brazing, or welding a tube joint may be eliminated in a tube joint construction that includes a male tube member (10) having a first cylindrical section (14) of relatively lesser diameter and an adjacent, second cylindrical section (18) of relatively larger diameter. Also included is a female joint element (12) having an internal passage (30) which includes an emerging cylindrical section (32) of a diameter just less than the relatively larger diameter and an adjacent, interior cylindrical section (34) of a diameter just less than the relatively lesser diameter. The male tube member (10) is interference fitted into the female joint element (12) to provide a sealed joint without the need for soldering, brazing, or welding. A back-up seal in the form of an adhesive bead (38) may be disposed at the tapered end (28) of the female joint element (12) if desired.

Abstract: A mechanical coupling device for connecting together two aligned fiberglass reinforced plastic duct sections, each having a terminal end portion of equal diameter, so as to form a leak proof joint that is resistant to fire and also chemical corrosion from gases and/or condensate within the duct sections is disclosed. The device comprises elements that cover and seal the terminal end portion of each said duct section; a central gasket member that covers the end elements and extends around the terminal end portions of the duct sections; a flexible metal sleeve member that surrounds the central gasket member; and tightening devices on the sleeve which compress the central gasket member and hold the aligned adjoining duct sections together to provide a leak-proof joint. The tightening devices are spring driven so that if the bulk of the gasket member is reduced due to fire, the sleeve will maintain a firm non-slip hold on the duct joint.

Abstract: A tube joint and seat frame formed with tubes joined with the tube joint of the present invention in which the joint is formed by flaring the end of an outer tube, inserting an inner tube into the outer tube beyond the flare forming a telescoping tube portion in which the outer tube overlaps the inner tube. The clearance formed between the inner and outer tubes by the flare is filled with an epoxy resin adhesive. A metal forming process is performed forming apertures through the inner and outer tubes in the telescoping tube portion in which the aperture in the outer tube is concentric with the aperture in the inner tube and is surrounded by a flange extending radially relative to the axis of the tube into the aperture in the inner tube forming a mechanical interlock between the inner and outer tubes.

Abstract: A connecting and fitting method is provided for metallic pipes with a small diameter. The method includes providing a piping component having a tube wall extending therefrom and defining an expanded chamber. The method further includes providing a pipe member and forming at least one circumferential discontinuity in the pipe member near one end. The end of the pipe member is then inserted through an annular sealing component and into the expanded chamber defined by the tube wall. A diameter reducing area is then formed on the tube wall at a location substantially registered with the circumferential discontinuity in the pipe member to squeeze and tightly seal the sealing component into connecting engagement with the circumferential discontinuity on the pipe member.

Abstract: A fluid conduit connection includes in combination a cast or molded connecting member; a connecting socket affixed to the connecting member and comprising a standarized sheet metal press fitting having one end thereof attached to the connecting member and comprising a substantially cylindrically portion and, at the other end thereof, an annular groove for housing a sealing member. The press fitting is dimensioned for receiving a substantially cylindrical conduit to be inserted therein and for non-releasably crimping the fitting around the conduit.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure and a clamp fastened to one of the opposite ends of the hose by the fastening structure for substantially circumferentially and radially inwardly clamping the one of the opposite ends of the hose onto a member that has been inserted into the one of the opposite ends of the hose, the fastening structure comprising a tubular arrangement of elastic material disposed in stretched relation over and against part of the clamp and having opposite annular side sections, one of the side sections of the fastening structure having a part thereof disposed outboard of the clamp and having been secured against the one of the opposite ends of the hose to hold the clamp thereon in a predetermined rotational and axial position relative thereto.

Abstract: A coupling apparatus and method is disclosed for coupling a first hose having groove means formed in the outer hose surface of the first hose to a first coupling member. The apparatus and method comprises an internal bore extending through the first coupling member with first coupling linking threads defined in the internal bore. A first attachment member includes a first attachment internal bore for receiving the first hose with a first input aperture communicating with the first attachment internal bore. The first hose is inserted into the first attachment internal bore and a flowable adhesive is injected into the first input aperture for enabling the adhesive to flow through the first attachment internal bore into a void defined by the first attachment member and the first hose and to flow into the groove means in the outer hose surface of the first hose.

Abstract: A double containment fitting for use with a double containment pipe having an inner carrier pipe and an outer containment pipe. The fitting includes an inner containment member having a pair of open ends and a pair of centering spiders, each spider adhesively engaged with the exterior of the inner containment member near an end of the inner containment member. An outer containment member has a pair of open ends, each open end including a first portion having an inner radius larger than the exterior radius of the centering spider and a second portion adjacent the first portion having an inner radius less than the exterior radius of the centering spider, providing a shoulder for abutting an edge of the centering spider.

Abstract: Joinder of two adjacent segments of steel pipe having an outer diameter of at least 12 inches, by a bridging sleeve, the sleeve being joined to both pipe segments by magnetic forming. Apparatus enabling the process includes a segmented ring-shaped coil brought together around the joinder, to form a complete coil circuit for magnetic forming.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure, and a clamp fastened to one of the ends of the hose with the fastening structure for substantially circumferentially and radially inwardly clamping the one end onto a member that has been inserted into the one end, the clamp having end projections for being toggled together to circumferentially enlarge the clamp and hold the clamp out of its clamping condition and for being released from each other so as to be circumferentially moved apart from each other as the clamp circumferentially shrinks into its clamping condition by the natural spring force of the clamp, the fastening structure comprising a single spot of adhesive disposed between and against the clamp and the hose at a point on the hose that is located substantially diametrically opposite the point on the hose where the end projections of the clamp are adapted to be toggled together.