Abstract: An apparatus to seal terminal ends of the two half oversized sleeves, positionable on the external circumferential side of affected riser pipes. The apparatus comprises of a pair of flange bodies integral to the two half oversized sleeves and a pair of terminator bodies. Each flange body includes a semi-circular collar with a plurality of bores and a semi-circular lip. The terminator body includes a semi-circular collar with a plurality of bores and a semi-circular recess structured and configured to receive the respective semi-circular lip. Two semi-circular graphite strips are introducible into the semi-circular recess. The terminator body is secured against the flange body by tightening of nuts and bolts introduced between the bores in the flange body and the terminator body.

Abstract: An apparatus configured to a downhole tubular to a pump. The apparatus comprises: a body portion having a bore; a locking assembly comprising at least one locking member pivotally mounted to the body portion so as to permit the locking member to be pivoted between an open position in which the downhole tubular can be inserted into the bore of the body portion, and a closed position in which the locking member engages the downhole tubular so as to lock the downhole tubular in the bore of the body portion. Fixing means is provided for fixing the looking member in the closed position. A method of drilling a wellbore using a borehole casing.

Abstract: A coupling is provided for joining the ends of relatively soft plastic conduit. Hinged shell halves contain gripping teeth that penetrate and secure the conduit ends together. Penetration of the gripping teeth into the plastic conduit is accomplished by toggle clamps that supply the necessary embedding force. A seal is provided that prevents leakage into or out of the joint between the conduit ends.

Abstract: An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein to cause an interference fit. The sleeve will hold the cementing plugs when rotational forces, such as drilling forces, are applied so that during drillout, rotation of the cementing plug is prevented or is at least limited.

Abstract: A device for sealing a lap joint between two conduits is disclosed herein. The device includes a band clamp. The device also includes a packet or other type of container secured to the band clamp. The packet contains a sealant which moves or flows to void areas between the clamp and the conduits during clamp tightening to provide a more fluid tight seal about the lap joint.

Abstract: A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside to band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the confronting free ends of the sleeve. The sealing joint has a member at the mating edges to provide a resilient interference fit of the tongue-and-groove.

Abstract: A rotary holder for a corrugated tube is structured such that an inner rotary body containing a corrugated tube is received in an inner portion of an outer fixing body, and an outer peripheral sliding surface of the inner rotary body slides along an inner sliding surface of the outer fixing body. The outer fixing body is formed by assembling a base member and a cover each having a recessed arch surface on an inner periphery thereof. The inner sliding surface is formed by connecting a recessed arch surface of the base member to a recessed arch surface of the cover. Further, outer retracting surfaces are respectively provided to both end portions of the recessed arch surface of the base member so as to be extended to a tangential direction thereat.

Abstract: A coupling is designed for sealingly connecting two fluid conduits such as automotive fluid lines in axial end-to-end relationship. The conduits have respective telescopically interengaging male and female end sections and the coupling comprises a base member to be carried on one of the fluid conduits and a retaining structure mounted on the base member and having two C-shaped arms which can be interconnected around the other conduit end section. A releasable lock acts between the arms to lock the retaining structure in engagement. In the locked condition the axially oriented abutment surfaces in the retaining structure engage peripheral shoulders on the conduits to prevent axial separation of the latter. The coupling can be fabricated from integral plastic components and preferably includes a guard arrangement to shield the releasable lock against inadvertent disengagement.

Abstract: A quick coupler formed of two identical sectors that snap lock together in a radially inward direction relative to a central axis of an annular hole passing through the coupler. The coupler is in the form of a nut or housing for surrounding the ends of two conduits that are to be coupled. The annular hole extends between opposite end faces and has structure near each end face. The structure at one end of the annular hole comprises a flange for retaining a first conduit when the sectors are snapped surroundingly snapped together on the end of the first conduit. The structure at the other end of the annular hole has circumferentially spaced lugs for cooperation with bosses on the second conduit in a bayonet quick coupling fashion. The combination of the coupler with first and second conduits having cooperating structure enabling the coupler to join the conduits in sealed fluid communication.

Abstract: A variable diameter cylinder made from a sheet having first and second edges that are opposite to each other and that slideably connect with each other to form a helical joint of a cylinder such that sliding the edges of the sheet along the joint varies a diameter and length of the cylinder. When marked with a scale, the cylinder acts as a measuring device that is both highly accurate and easy to use. A helical-based scale can be used alone, or a linear scale can be used in combination with a Vernier scale.

Abstract: An improved band clamp for securely clamping the end of a flexible hose to one of at least a rigid pipe, a cast outlet of a radiator, a charge air cooler and a turbocharger in order to prevent fluid communication between the two. The improved band clamp includes a clamp band which is configured to circumvent a substantial portion of the hose. The clamp band defines first and second ends, each of which is defined by a terminal portion of the clamp band folded over on itself to define a double thickness, and then formed in an arcuate configuration away from the center of the clamp band. A spline is provided for being received between each of the first and second ends of the clamp band. First and second spacers are provided on the outer sides of the clamp band first and second ends. The first spacer, each of the first and second clamp band ends, and the spline each define an opening to cooperatively receive a bolt. The second spacer defines a threaded opening to receive the bolt in threaded engagement.

Abstract: A band clamp used to connect tubular bodies such as vehicle exhaust system components. The band clamp has a band extending from a first end to a second end and includes a pair of spaced ribs extending at least part way between the first and second ends. A tightening mechanism is connected to the band and includes two clamp members movable toward and away from each other for tightening and loosening of the band. The band clamp further includes a gasket located on an inner surface of the band between the ribs and extending between the first and second ends. The use of the ribs with the interposed gasket provides a mechanical interlock of the band clamp with the tubular bodies while providing a hermetic seal at the junction between the two bodies.

Abstract: A coupled circulation tube for a ball screw unit. The tube is formed on a planar surface at one side of the ball screw bearing, each tube joined to two circulation holes. Each circulation tube is formed by coupling two symmetrical rigid metallic half tubes at recessed grooves and flanges interposedly arrayed one after another longitudinally along the wall of each half tube to form a resultant U shaped arcuate elbow tube for ball circulation such that it is firmly constructed with a desired toughness free from loosening, cracking or deforming by constant collision and abrasion of the rolling balls.

Abstract: A manually operated tool engages and draws towards one another opposed spaced flanges of a repair clamp disposed about a leaking pipe for securely maintaining the clamp in position 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, while still allowing the clamp to be moved along the pipe over the leak and plural nut and bolt combinations to be securely tightened in sealing off the leak.

Abstract: An enclosure for diverting water spilled from an opened pipe joint includes a pair of housing halves which are able to be mounted on a pipe line and seal the pipe joint within the housing halves. The housing portions may be opened to allow the pipeline to be moved to position each pipe joint in turn within the housing. A plurality of seal sets provide the adaptability to seal the housing to different diameter pipes. The seal sets having a common outside diameter, and a unique inside diameter and are interchangeable within the housing. When the pipe joint is broken within the housing water in the pipe drains into the housing and from a nipple to a hose or other conduit to a drain or storage tank.

Abstract: Clamps for sealing lap joints are disclosed. The clamps include bands each having a main body and bolts mounting flanges located at opposite ends of the main body. Sealing bars are mounted between the bolt mounting flanges of the bands. The sealing bars includes pockets for receiving portions of the mounting flanges. The pockets are defined by sealing legs and reaction legs of the sealing bar.

Abstract: A coupler for a flexible tube is disclosed. The coupler includes a first channeled member having a generally semicircular cross-section and a first longitudinal axis extending therethrough and a second channeled member having a generally semicircular cross-section and a second longitudinal axis extending therethrough. The first longitudinal axis is generally parallel to the second longitudinal axis. A hinge connects a first length of the first channeled member to a first length of the second channeled member. A lateral axis generally bifurcates the first length of the first channeled member and the first length of the second channeled member. A plurality of barbs are disposed in each of the first and second channeled members, wherein each barb extends generally toward an intersection of the longitudinal axis of its respective channeled member and the lateral axis. A lock secures a second length of the first channeled member to a second length of the second channeled member.

Abstract: A device for sealing a lap joint between two conduits is disclosed herein. The device includes a band clamp. The device also includes a packet or other type of container secured to the band clamp. The packet contains a sealant which moves or flows to void areas between the clamp and the conduits during clamp tightening to provide a more fluid tight seal about the lap joint.

Abstract: In a method of exhausting an interior room to atmosphere through a corrugated conduit, the use of a connector which is attached to the corrugated conduit by tongues seated in the recesses of the conduit corrugations as a result of a telescoping together of the connector and conduit, the tongues preventing opposite direction untelescoping and obviating leakage-promoting crushing of the corrugations as might result from using a clamp.

Abstract: A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside the band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the confronting free ends of the sleeve. The sealing joint has a member at the mating edges to provide a resilient interference fit of the tongue-and-groove.

Abstract: A pipe clamp has a tightenable clamp body and at least one spike strip arranged radially inwardly within the clamp body and slanted toward the axial center of the clamp body. The spike strip and a radially inner side of the clamp body delimit an acute angle therebetween. The spike strip has a first longitudinal edge provided with teeth projecting radially inwardly and slanted axially relative to the clamp body. The at least one spike strip has a second longitudinal edge supported in a radial direction and in an axial direction on the clamp body. An area between the at least one spike strip and the radially inner side of the clamp body defined by the acute angle is free of parts counteracting a bending of the at least one spike strip toward the radially inner side of the clamp body.

Abstract: The present invention relates to the corrosion protection of a steel pipeline, and to improvements in pipe clamps useful for this purpose. The invention provides a pipe clamp or coupling which makes electric contact with the pipes on which it is assembled and provides a continuous electrical connection, of the pipes. The pipe clamp according to the invention for sealing by means of a metal clamping band to surround the pipe or a pipe coupling for removably holding extremities of a pair of metallic pipes provided with a flexible inner sleeve disposed inside the clamping band; the inner sleeve is attached to the clamping band by means of metallic fasteners, the metallic fasteners being arranged to contact the metallic pipes when the assembly is tightened, to form a continuous electrical connection of the pipes.

Abstract: The present invention relates to the sealing of pipe repair clamps which provides a flexible inner sheet or sleeve adapted for duty inside a pipe repair clamp to prevent leakage of the fluid to be transported in a pipeline. The inner sheet or sleeve of the present invention may be used in combination with a band-type pipe clamp of various types.

Abstract: The present invention relates to a repair clamp providing an improved pipe repair clamp. The clamp according to the invention could be used in some cases as a coupling to join two pipe ends.

Abstract: A rotary holder for a corrugated tube is formed such that an inner rotary body containing a corrugated tube is received in an inner portion of an outer fixing body, and an outer peripheral sliding surface of the inner rotary body may rotate relative to the outer fixing body. The inner rotary body is formed by assembling two divided rotary members, each having a round arch surface on an outer periphery thereof. The outer peripheral sliding surface is formed by abutting a surface of each divided rotary member against each other. Further, a cut surface retracting inside from a rotation locus of the round arch surface in each divided rotary member is formed in each end portion of the round arch surface.

Abstract: A mechanical joint including a circular seal (4), a gland ring (5), an elastic ring (6) and a back-up ring (7), as well as a body (1), with closure and backing part (2), while the joint can further contain a counterseal as an option, the body can further contain the closure and backing part as an option, and the elastic ring (6) is optionally equipped with two symmetrical pitch union nuts (9, 10) and two gaskets (11, 12), as well as with a symmetrical pitch screw (13). The joint has application to all pipe couplings, with alignment stress or with misalignment tolerance.

Abstract: An underwater cable protection pipe (11) is comprised of two identical longitudinal half-pipe sections (13, 13′) interconnectable with one another by integrally formed mating connectors (14). The half-pipe sections (13, 13′), when interconnected together, form a longitudinal hollow pipe (11) having a stub end (15) and an articulatable clamping ball end (16) shaped to clampingly receive the stub end (15) of a like pipe (11) to interconnect two or more of the pipes (11) end-to-end about a submerged cable (12).

Abstract: A duct joiner for air ducting is provided which has at least one tubular neck portion with resilient projections extending out of a first annular groove, a sealing ring mounted in a second annular groove and further resilient projections extending out of a third annular groove. A ramp surface between the first and second grooves assists in fitting an end portion of an air duct over the neck portion which rides over the resilient projections, then moves along the ramp surface and over the sealing ring and then over the resilient projections extending from the third groove. The projections then engage with the internal surface of the duct to retain the duct on the neck portion and a good sealing contact is achieved about the sealing ring. There is also provided a method of manufacturing such a duct joiner by moulding the joiner in at least two parts and joining side edges of the two parts together by complementary interengaging formations.

Abstract: By attaching a base portion to a cover portion formed is an outer fixing body and in the interior of the outer fixing body a corrugated tube is rotatably received. Further, by providing a tube bend restraint portion at the end portion of the cover portion for restraining bend of the corrugated tube within the given range, a rotary holder for corrugated tube in which the range of sliding movement of the corrugated tube is defined only within the cover portion.

Abstract: A coupling for coupling a pair of axially aligned adjacent pipes. The coupling including a substantially cylindrical sleeve having an inner surface including a recess therein where the cylindrical sleeve has a first end area and a second end area. The second end area includes a tab extending therefrom that is selectively alignable and insertable within the recess. A liner may be positioned along the inner surface of the sleeve.

Abstract: A clamp for sealing a lap joint is disclosed. The clamp includes a band having a main body and bolts mounting flanges located at opposite ends of the main body. A sealing bar is mounted between the bolt mounting flanges of the band. The sealing bar includes a pre-formed step for assisting in sealing the lap joint.

Abstract: Slidable-contact portions 10, 24 of a fixing tool 1 are engaged with the concave grooves 11 of a corrugated tube 2 which is circular in section so that the corrugated tube is supported rotatably in its circumferential direction by the fixing tool 1. Where the corrugate tube is oval in section, it is fixed inside a rotating member 33 with a circular outer periphery, and the rotating member is held rotatably in its circumferential direction inside a body of the fixing tool 1. The rotating member may be moved along a cam groove, or may hold the corrugated tube in a state decentered in an oblique direction. The fixing tool 1 is composed of a receiving part 3 and covering part 2 which have slidable-contact supporting portions 10, 24 to be engaged with the concave grooves 11 of the corrugated tube 2.

Abstract: A segmented pipe coupling includes traction bolts that permit movement of shanks of the traction bolts into an attitude in which the head and nut of the traction bolts engage their respective bolting faces in continuous engagement, thus to eliminate a drop in tensile stress in a shank of the traction bolt due to shifting of the head of the bolt or the nut subsequent to initial torquing down of the nut.

Abstract: A protective sleeve in the form of a pressure relieving arch having a pair of split pipe sleeves for surrounding an uncut pipe or an uncut piping system preventing breakage by relieving structural strain from loads of a wall, footing or foundation around the pipe or piping system being protected. The pressure relieving arch includes a first protective pipe sleeve in the shape of a hollow semi-circle having a first pair of mating edges; and a second protective pipe sleeve in the shape of a hollow semi-circle having a second pair of mating edges. The first pair of mating edges of the first protective pipe sleeve for mating and connecting with the second pair of mating edges of the second protective pipe sleeve for forming a hollow and cylindrically-shaped pressure relieving arch.

Abstract: The invention is to provide a coupling structure of corrosion resistance for nonferrous metal piping.

Abstract: A connection apparatus for a waterway pipe is disclosed, which includes a plurality of pipes each having both ends which are connected in series, a coupler having protruded both ends and a connection member having a plurality of connection grooves for surrounding the connection portions of the pipes, an engaging member which passes through the connection groove, and an engaging member having one end inserted into the connection groove and the other end contacting with one side of the connection member, so that the coupling member moves backwardly and forward by a rotation force of the engaging member, and the coupler is tightened and loosened.

Abstract: A method for installing a ducting system with branches, wherein at the point of a branch in an existing duct of the system a splittable Y-branch connector with an inlet opening, an outlet opening and at least one branch opening is installed by cutting a duct portion from the existing duct at the point of the branch, opening the splittable branch connector and arranging it around a bundle of guide tubes extending between the cut end portions of the duct, and closing and securing the Y-branch connector with splittable coupling collars in such a manner that the inlet opening and the outlet opening engage in sealing manner over the respective cut ends of the existing duct, and the branch opening is secured by engagement of a branch stub around a branch duct through which a branch guide tube is laid.

Abstract: A corrugated pipe joint for coupling corrugated pipes includes at least two joint components, each of which includes a joint main body made of a synthetic resin and including an arc-shaped portion and tightening projecting edges which are outwardly projected from circumferential end portions of said arc-shaped portion in a radial direction of the corrugated pipes to be coupled, and a watertightness-implementing packing made of an elastic material and assembled with the joint main body, the watertightness-implementing packing including an arc-shaped portion and flange edges projecting outwardly from circumferential end portions of the arc-shaped portion in the radial direction.

Abstract: An anchor support is provided for a double-containment piping assembly having at least one outer piping component defining a first diameter, and at least one inner piping component received within the at least one outer piping component and defining a second diameter less than the first diameter and forming an approximately annular space between the inner and outer piping components. The anchor support has a cylindrical outer-component support section defining a first approximately annular support surface having a first diameter approximately equal to the first diameter of the at least one outer piping component for contacting and supporting the outer piping component. An approximately cylindrical inner-component support section of the anchor support is spaced laterally relative to, and located approximately at an opposite end of the anchor support relative to the outer-component support section.

Abstract: A fitting assembly for joining a double containment pipe (DCP), including primary and secondary pipes, to a double containment fitting, including primary and secondary fittings, wherein the secondary fitting has a larger diameter than the secondary pipe. A sealing reducer has a larger diameter end for fitting over the secondary fitting and a smaller diameter end for fitting over the secondary pipe. The sealing reducer is fit over the secondary pipe, the primaries of the DCP and double containment fitting are joined, and then the sealing reducer is positioned over the primary joint and its smaller and larger diameter ends sealed, either by adhesive or a combination of interlocking threaded fitting components and O-rings, to the ends of the secondary pipe and secondary fitting, respectively.

Abstract: A coupler (10) for pipes is designed for end-to-end assembly of pipe elements (2,4). It contains a waterproof tubular elastomer gasket (14), an exterior collar (12) which contains a collar that is cut longitudinally and at least partially covers the gasket, and means (16) for tightening the collar to bring together its extremities and to compress the waterproofing gasket. The means for tightening contains two matched flanges (18, 20) attached to each extremity of the collar, and means (22) for fastening the two flanges one to the other.

Abstract: An anchor support is provided for a double-containment piping assembly having at least one outer piping component defining a first diameter, and at least one inner piping component received within the at least one outer piping component and defining a second diameter less than the first diameter and forming an approximately annular space between the inner and outer piping components. The anchor support has a cylindrical outer-component support section defining a first approximately annular support surface having a first diameter approximately equal to the first diameter of the at least one outer piping component for contacting and supporting the outer piping component. An approximately cylindrical inner-component support section of the anchor support is spaced laterally relative to, and located approximately at an opposite end of the anchor support relative to the outer-component support section.

Abstract: A pipe coupling for two pipe ends having the same inner diameter includes a first pipe coupling joining the pipe ends. The first pipe coupling is formed from a section of pipe having approximately the same inner diameter as the pipe ends and is split longitudinally. A second pipe coupling is clamped over the location of the junction between the pipe ends. The second pipe coupling is formed from a section of pipe having approximately the same inner diameter as the pipe ends and is split longitudinally. The split of the second pipe coupling is offset from the split of the first pipe coupling. The couplings may include an inner and an outer coupling, two outer couplings, or an inner coupling and two outer couplings. Each inner coupling have a strip of material removed along its longitudinal split so that it can be compressed to substantially close the gap at its split and inserted into a pipe end.

Abstract: A continuous length of pre-assembled, metal-to-fabric-to-metal stock material for fabricating custom-made, flexible duct connectors of any diameter which incorporate a structural means for minimizing the risk of inward collapse of a fabric strip when the fabric strip is subjected to considerable negative air pressure due to installation between a duct and an inlet of an axial flow fan or blower.

Abstract: A sealing device 2 for forming a seal against an object such as a pipe surface 12 comprises a sealing strip 6 having a deformable inner pad 8, which is held tightly on the object by a slide fastener 18. The fastener 18 is preferably a hermetic zip fastener. A sealing device of the present invention may be used with a filter bag and the like.

Abstract: A pipe clamp with a headed bolt for securing a pipe connection, in particular pipes of the exhaust system of a motor vehicle which are to be connected to one another, in the case of which the end of a first pipe is pushed into an axially slit end of a second pipe and, when the headed bolt is tightened, the pipe clamp, fitted on the slit pipe end, connects the two pipe ends to one another in a frictionally locking manner, is to be secured against a reduction in clamping force. For this purpose, the pipe clamp is formed of a material which has a higher coefficient of expansion than does the material of the pipes which are to be connected. The head of the headed bolt is elongated, in order to avoid impermissibly high local stressing during tightening of the pipe clamp. Due to the elongate form of the head of a headed bolt, the forces on the pipe clamp which support the tightening torque are reduced by a lengthening of the lever arm with respect to the axis of the headed bolt.

Abstract: A confining ring set suiting wider range of diameters of pipes, wherein a "C" shaped confining ring is provided at three locations thereon with three screw holes equidistantly spaced with one another, each screw hole is provided with a screw therein pointing at the center of a chamber of the confining ring, the chamber is fitted therein with an external annulus which in turn is fitted therein with an inner annulus; the external and inner annuli have "C" shaped openings, an internally extended annular rib is provided on the top of the inner annulus, and an externally extended annular rib is provided on the top of the external annulus, the annular ribs are both provided with notches thereon to scatter stress, the confining ring set having the external and inner annuli can be used to confine pipes of a wider range of diameters, for the smaller pipes, three screws on ring set and effect of confining can thus be increased.

Abstract: A hose coupling shroud for enclosing and securing coupled ends of a pair of hoses, particular those of the type used to convey an abrasive media under high pressure. The shroud has tapered portions at oppositely-disposed ends thereof, openings at the oppositely-disposed ends for receiving the hoses, and vents to allow excess pressure and media to be released from the hose coupling shroud in the event of a coupling failure. Radially-projecting ribs within the tapered portions secure the coupled ends of the hoses within the shroud in the event of coupling failure, and form a pair of sealing barriers between the coupled ends and the openings at the oppositely-disposed ends of the shroud. The tapered portions reduce the likelihood that the hose coupling shroud will become snagged on an object as the hoses are pulled through a work environment.

Abstract: The improved hose coupling boot is an invention that because of its unique geometry and design, will substantially eliminate snags, and accidental disconnects of hose coupling joints. It will also substantially reduce debris build up and associated malfunction in hose connection joints. It is principally intended for use on pneumatic hoses used to power industrial pneumatic devices.

Abstract: An improved air diffuser and mounting arrangement for mounting diffusers on submerged air laterals in a wastewater treatment system. The diffuser is formed form a cylindrical pipe which is flattened on most of its length but left partially cylindrical for convenient mounting. The mounting arrangement includes a removable saddle on the air lateral and a Tee fitting for mounting the diffusers. The saddle has an outlet spout which fits directly against and is connected directly to an inlet leg of the Tee fitting. The saddle construction in one form accommodates either standard U.S. or metric pipe fittings and in another form accommodates two different sizes of pipe fittings.