Abstract: Method and apparatus are disclosed to complete a threaded connection between two connector members by relative rotation between the connectors, utilizing fluid pressure between them to overcome radial load resistance during make up by rotation, and thereafter to produce axial and radial loading in the completed connection, but without otherwise applying longitudinal forces to drive the two connectors together to make up the threaded connection. In a disclosed embodiment, a pin connector has a tapered neck with external threads, and a box connector has a collar with a tapered interior, featuring tapered threads. The pin neck is received within the box collar, and the two sets of threads are made up by relative rotation between the pin and box. When a stall position is reached due to radial resistance forces, two combinations of bump and ramp seals provide a sealed zone between the sets of threads.

Abstract: A quick disconnect fitting, that is operable with one hand, is provided for connection of a endotracheal tube and an artificial breathing apparatus output tube. The fitting is preferably a rigid body member having a artificial breathing apparatus input member, a endotracheal output member, and a movable piston or plunger for manual extraction of the endotracheal tube from the endotracheal output member. A finger support member can be provided to grip with at least one finger to obtain additional leverage to depress the plunger with the palm of a user's hand. Fluid communication is always maintained from position 1 to position 2 were complete disconnection of the endotracheal tube is achieved.

Abstract: A clamping assembly for connecting and disconnecting aligned hubs of a first and a second pressure vessel is provided. The clamping assembly includes a pair of clamp segments and at least one cam in operable engagement with the clamp segments. The clamp segments are movable between a closed position to engage the hubs and an open position to disengage from the hubs. The movement of the clamp segments from the closed position to the open position operates the cam to separate the hubs.

Abstract: There are disclosed two embodiments of a connector for sealably connecting the lower ends of an upper riser member and an upper conduit on the lower ends of an upper riser pipe and upper auxiliary line joint, respectively, to the upper ends of a lower riser member and a lower conduit on the upper ends of a lower riser pipe and upper conduit thereof, respectively. At least one of the conduits includes a telescoping sealed joint which is of such construction as to permit differential movement between the riser and the auxiliary line.

Abstract: A mounting apparatus for fluid control components includes a first mounting plate with a first serial connection major surface with a first fluid port, a first set of through holes, and a first set of threaded holes formed therein, a first linking major surface, a first component minor surface with first component affixation apertures formed therein, and a first substrate minor surface with first substrate affixation apertures formed therein. A second mounting plate is aligned in a parallel configuration with the first mounting plate. The second mounting plate includes a second serial connection major surface with a second fluid port, a second set of through holes, and a second set of threaded holes formed therein, a second linking major surface, a second component minor surface with second component affixation apertures formed therein, and a second substrate minor surface with second substrate affixation apertures formed therein.

Abstract: A gas meter bypass apparatus and method for removing a gas meter from operation for service or replacement and placing the meter back into service without interrupting the flow of gas to the user. The apparatus connects to a standard tee which is utilized on the customer side of most residential or commercial meter installations. The bypass apparatus includes a clamp assembly, a seal fitting, an isolation valve, an extraction fitting, an isolation fitting, and a flexible tube connector. The clamp assembly is used to attach the bypass apparatus to the tee. The seal fitting connects to the clamp assembly and seals between the bypass apparatus and the port of the tee where the plug is installed. The isolation valve attaches to the seal fitting. The extraction fitting attaches to the isolation valve and is used to extract and re-install the plug through the isolation valve.

Abstract: A connector body at the end of a freon line, of the type which is freely rotatable on the line, and is able to move from a first position adjacent the freon hose surrounding the line to a second position at the end of the line for threadably engaging an air conditioner or the like, the nut in its passage moving past an elbow bend in the line. The connector would comprise at least a connector body having a width substantially wider than the width of a grasping forefinger and thumb, and further comprising a counter bore along its rear end portion, so that as the connector moves from its first position through the elbow of the line, the bend in the line would travel within a portion of the counter bore and allow the nut to slide between its first and second positions without jamming in its passage along the elbow bend.

Abstract: A water purifier includes a port having a collet, an O-ring seal, and a support between the collet and the seal. The collet axially receives a tube for water passage. The support limits radial movement of the tube off the axis. The support has an L-shaped cross section having a radial leg that seats the O-ring, and an axial leg. Water purifiers are often installed in confined spaces near mechanical equipment. Conventional water purifiers installed with sharp bends in influent and effluent water tubes and exposed to equipment vibration conducted by the tubes often exhibit weeping at the port. In an embodiment of the present invention, weeping is eliminated by maintaining axial relation between the tube, the seal, and the collet.

Abstract: In order to connect two tubular guide rails, a connector is used. Each tubular guide rail is formed with an elongate rounded recess which extends perpendicular to the longitudinal axis of the tubular guide rail. A seal member of elastic material is to be put between terminal ends of the two tubular guide rails. A joint plate has two parallel elongate rounded recesses formed therein. The joint plate is connectable to the two tubular guide rails in such a manner that each of the parallel elongate rounded recesses mates with the elongate rounded recess of the corresponding tubular guide rail to define a substantially cylindrical pin receiving space. Two cylindrical positioning pins are employed each being to be received in the substantially cylindrical pin receiving space. A securing device is employed which, when actuated, gradually presses the joint plate against the tubular guide rails and finally secures the joint plate to the tubular guide rails.

Abstract: An adjustment device for adjusting a mounting device between two flanges of a pipeline system, wherein the two flanges can be connected via preferably bolt-shaped connection means. The adjustment device consists of an expansion element that can be expanded basically by an inflowing medium wherein the expansion element in its expanded state is adjacent to the mounting device and the connecting means.

Abstract: A coupling device for ducts comprises locking elements movably mounted in a circumferential succession on an end flange of a first duct having a longitudinal axis, moving member for moving said locking elements from a first position to a second position where said locking elements are engaged with an end flange of a second duct to keep it against the end flange of the first duct, elastically stressed floating ring seal members housed in a sliding and oscillating manner in a respective seat provided in the end flange of the first duct. Each locking element comprises a jaw rotatable around a rotation axis which is parallel to the longitudinal axis of the first duct. The moving member comprises a ring rotatably mounted on said first duct, said ring having a plurality of toothed sectors each engaged with a respective pinion fixedly mounted on a respective locking element.

Abstract: An apparatus for gripping a pipe comprises an outer member having at least one inclined inner surface and an inner member having an inclined outer surface, a tubular member having an opening to accommodate said inner member and a threaded part, and a threaded gear engaged with the threaded part of the tubular member. On rotation of the threaded gear the tubular member moves the inner member which co-operates with the outer member so that said inner member moves towards a pipe to be gripped. The apparatus is particularly useful for applying "non-marking" jaws to the outside of tubulars in the oil and gas industry.

Abstract: A self-cleaning rotary union apparatus provides a fluid coupling between a pair of relatively rotatable fixture elements, and includes a base and a body that are rotatable relative to one another. The base includes a mounting surface, an interior surface opposing the mounting surface, a fluid passageway extending into the base, and a plurality of bores extending through the base between the mounting surface and the interior surface. The bores are countersunk adjacent the interior surface to permit flange mounting of the base on one of the fixture elements. An elongated rotor protrudes from the interior surface of the base and includes a cylindrical side surface provided with an annular channel and a fluid passageway that communicates with the annular channel and with the passageway in the base.

Abstract: Apparatus is disclosed for use in lowering an object such as a well pipe through a guide tube suspended from the water surface and onto an upstanding subsea conduit beneath the lower end of the guide tube.

Abstract: A coupling device is used for joining two pipes. Each end of the coupling has a pair of adjoining grooves in its inner surface. Each groove has at its largest diameter a substantially flat portion located at its innermost end and then tapers in the direction of the coupling end. At the junction between the two grooves, the diameter of outermost groove is greater than the diameter of the innermost groove, forming a small circumferential ridge. An O-ring is initially set in the innermost groove and is compressed as the pipe is pushed into the coupling. The O-ring is further compressed as it rolls down the ramp of the inner groove as the pipe is partially retracted from the coupling. As the O-ring is pulled past the circumferential ridge between the grooves, it expands into the flat portion of the outer groove, forming a seal between the pipe and the coupling and a positive indication of sealing.

Abstract: Two joint components in a pipe conduit are secured together in seal-tight fashion by means of rotatably mounted dogs in one of the joint components which are rotated via individual slides into an active locking position. The slides are, in turn, activated from a common pressure source. In addition, a wedge is positioned in the joint component under a housing in which a dog is rotatably mounted so as to be slid radially inward by a slide after the dog has been rotated into a locking position. In one embodiment, a double acting piston and cylinder arrangement is used for actuating the respective slides.

Abstract: There is disclosed a connector for releasably connecting tubular members connected to adjacent ends of riser pipes in end-to-end relation. The tubular members have locking grooves about their adjacent ends, and a split lock ring surrounds the adjacent ends of the tubular members, when in end-to-end relation, and has upper and lower teeth thereabout for fitting tightly within the grooves to hold the ends of the tubular members in end-to-end relation. The lock ring is moved between locking and unlocking positions by means of a cam ring having tapered conical cam surfaces thereabout for slidable engagement with follower surfaces about the lock ring. A support plate extends laterally from each tubular member, and pipes, which may be choke and kill/lines, one mounted on the plates to sealably interfit with one another upon movement of the tubular members into end-to-end relation.

Abstract: There is disclosed a clamp useful for connecting a tie-in line transversely to a carrier pipe, comprising: a lower body portion and a upper body portion that when connected together define a tubular bore, the lower and upper body portions being adapted to clamp onto the carrier pipe; a set of gripping collets positioned with the tubular sleeve bore proximate opposed ends of the upper and the lower body portions to engage such a carrier pipe; a branch tap positioned between the gripping collets and extending from one of the body portions transversely to the tubular bore; a first seal and a second seal for providing a seal between the carrier pipe and the upper and the lower body portions, the first and second seal positioned within the transverse bore and between the gripping collets and the branch tap; and a set of axial seals to form axially extending seals between the upper and lower body portions during use and to connect the first and second seals during use.

Abstract: A tieback adapter will connect a tieback string between a subsea wellhead assembly and a platform at the surface. The tieback adapter has a housing in which a sub is carried. The sub has a lower end which contains a seal for sealingly engaging an internal sealing surface of a casing hanger located within the subsea wellhead assembly. The sub is connected on its upper end to the tieback string. The housing has a locking element which locks to an internal locking profile of the subsea wellhead assembly. A retainer carries the sub in an upward position within the housing while the tieback adapter is being lowered into the subsea wellhead assembly. A release device will release the retainer from the sub in response to the landing of the housing in the subsea wellhead assembly. This allows the sub to move downward. A cam surface on the sub simultaneously moves the locking element into engagement with the locking profile and the subsea wellhead assembly housing.

Abstract: A tubular supporting element for supporting an elastic sleeve for covering a junction of cables which is provided with a wall which has a groove or incision directed according to a helical line and which has a radial depth from the outer surface of the supporting element less than the radial thickness of the supporting element. The incision has a mouth at the outer surface of the supporting element with a width of less than 0.1 mm, preferably less than 0.05 mm, so as to provide a strip between the incision having a substantially rectangular cross-section. Also, a process and an apparatus for making the tubular supporting element.

Abstract: A conduit connector is provided so that a heat medium source, a drain and/or a vacuum pressure source are in fluid communication with a cassette containing rotatable cylinders for producing corrugated paperboard. The cassette is insertable in a frame. At least one plug and associated socket are mounted in a first plate and a second plate, respectively. Each plug is secured to an end of a conduit, and the conduit has another end in communication with the cassette. Each socket is in communication with the source. The first plate is fixed relative to the cassette, and the second plate is fixed relative to the source. The plug and the socket are configured to engage each other upon an insertion of the cassette into the frame so that the conduit is in fluid communication with the source.

Abstract: An elbow coupler includes a linkage for locking the coupler to an adapter. The linkage has a resilient, laterally deflectable link that limits the forces applied to the linkage thereby preventing the components of the linkage from being overstressed. A spring loaded, blocking sleeve prevents the coupler from normally remaining upright on an adapter, unless it is locked thereon through use of the locking linkage. A flapper valve is interconnected with the blocking sleeve to the end that the valve is normally closed and then opened when the coupler is locked onto an adapter.

Abstract: A coupling for quickly connecting a cement head to a casing of an oil or gas well comprises tube-shaped upper and lower bodies that connected to each other and are telescopically adjustable. The upper body receives the cement head and the lower body attaches to the casing. A clamp mechanism utilizing split ring segments is located in the lower body and is actuated by a piston for quickly attaching or releasing the lower body to and from the casing.

Abstract: There is disclosed a connector for releasably connecting tubular members connected to adjacent ends of riser pipes in end-to-end relation. The tubular members have locking grooves about their adjacent ends, and a split lock ring surrounds the adjacent ends of the tubular members, when in end-to-end relation, and has upper and lower teeth thereabout for fitting tightly within the grooves to hold the ends of the tubular members in end-to-end relation. The lock ring is moved between locking and unlocking positions by means of cam rings having tapered conical cam surfaces thereabout for slidable engagement with follower surfaces about the upper and lower ends of the lock ring.

Abstract: A hydraulic connector having a first assembly releasably connected to a second assembly. The first assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a receptacle portion surrounding the longitudinal bore. The first assembly has an internal circumferential chamber therein. The chamber has an upper portion and a lower portion. The second assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a protruding portion having an external circumferential groove. A movable locking ring is housed in the lower portion of the chamber. The locking ring has a first surface to matingly engage the circumferential groove. A piston is slidably received in the chamber. The piston is permitted to move axially relative to the first assembly. The piston has an upper head and a lower head connected by a sleeve segment. The piston and the chamber form individual chambers for locking and unlocking.

Abstract: A method and apparatus for sealing wells utilizing an inflatable bag and an automatically separable coupler. An air compressor or other fluid source supplies a fluid to the inflatable bag via a hose connected to the bag by this coupler and a valve. The bag is lowered into the well and it is then inflated until the coupler separates thereby disconnecting the hose from the bag, thus allowing the hose and the coupler to be recovered and used again. The well is thus sealed by the inflated bag. Concrete or any other similar substance can then be deposited into the well to fill the cavity formed between the bag and the level of the ground. Once the bag has been inflated to cover the well opening, it is then disconnected from the hose and coupler. Disconnection is effected automatically by collapse of flexible gaskets which join the coupler and the valve.

Abstract: A connector for connecting two tubular members (1,2) having annular flanges (3,4) at their ends. The connector comprising an actuating ring (13) movable in the axial direction of the tubular members (1,2), a plurality of upper dogs (15) for engaging the flange (3) of the upper tubular member (1) and a corresponding plurality of lower dogs (17) for engaging the flange (4) of the lower tubular member (2). Each pair of upper (15) and lower (17) dogs are connected by a stud (24) and are axially separable providing a sealed cavity (22) between the dogs which is supplied, in use, with hydraulic fluid. In use, the supply of hydraulic fluid to the cavity (22) forces the upper (15) and lower (17) dogs apart to tension the stud, so that, when the dogs are moved adjacent to the upper and lower flanges (3,4) and the pressure in the cavities (22) is released, the tension in the stud will be released allowing the upper (15) and lower (17) dogs to slide back together and clamp the upper (3) and lower (4) flanges together.

Abstract: A riser string connecting a floating vessel to a subsea well has a weak link coupling which will part the riser string once a minimum force is reached. The weak link coupling has a release mechanism which operates at the minimum force. An arming device has a locked position which will prevent operation of the release mechanism. The operator can remotely shift the arming device into an armed position in which the release mechanism will release at the minimum force. The operator can shift the arming device back to the unarmed position if separation did not occur. An actuator will move the arming device from the locked position to the release position. Tapered surfaces on the box and pin of the weak link coupling neutralize the effect of bending moments on the weak link coupling.

Abstract: A tieback system for a subsea well employs a tieback member that can be utilized in the event tieback threads in the casing hanger become damaged. An annular groove is formed in the bore of the wellhead housing above the casing hanger. The tieback member connects to tieback conduit and has a lower end that slides into the interior of the casing hanger. A locking device will lock the tieback member to the groove in the wellhead housing. The locking device includes a retainer which carries a radially movable locking members that are cammed outward by downward movement of the tieback member relative to the retainer.

Abstract: A subsea fluid coupling includes self-sealing male and female couplers, and an elastic O-ring seal accommodated in the female coupler for sealing around the male coupler. The leading pheriphery of the male coupler is provided with ridges and channels which respectively support the seal and allow fluid flow pass the seal during withdrawal of the male coupler.

Abstract: A high pressure quick connector having a tube which includes an upset adjacent one end. A male locking assembly is positioned about the tube and includes a cavity enclosing the upset and a contoured outer surface defining first and second grooves spaced axially along the male locking assembly. A female member having an internal bore is adapted to receive the male locking member. The female member has an internal bore that includes a locking groove. An expandable annular locking ring is mounted about the contoured outer surface and the locking ring is initially mounted in the first groove and is slidable from the first groove to the second groove upon axial movement of the male locking assembly into the female member.

Abstract: There are disclosed several embodiments of a connector for connecting tubular members in end-to-end relation wherein a ring supported by the one tubular member carries arcuate latches which are adapted to be moved by radial actuators into and out of positions in which locking shoulders thereon are tightly engaged with a complementary locking shoulder about the other tubular member to hold the members in end-to-end relation.

Abstract: There is disclosed a wellhead connector for connecting first and second tubular wellhead members in end-to-end relation, wherein locking segments are carried by a ring about the first member for movement between an outer position, to permit the ring to be moved over an outer surface of the second member, to an inner position in which locking shoulders on the inner ends of the locking segments slidably engage a locking shoulder about the outer surface of the second member to urge the ends of the members into tight engagement. The locking segments are moved to their inner positions by means of wedges guidably movable in the ring outwardly of the locking segments and having surfaces slidable over surfaces on the outer ends of the segments as the wedges are moved toward one another, and are moved to their outer positions, as the wedges move away from one another, by means of coil springs acting between the body and locking segments.

Abstract: A device for connecting two tubes end-to-end. At least one of the tubes is movable longitudinally to be connected to the other tube. A screwthreaded nut joins the two tubes. The first tube has at its end an outside screwthread of diameter d1 and pitch p1. The second tube has at its end an inside screwthread of diameter d2 greater than d1 and pitch p2 different than that p1 of the first tube. One of the screwthreads is continuous and the other is discontinuous by virtue of longitudinal lands subtending an angle at the center of the tube equal to that of the screwthreaded longitudinal lands. The nut 3 has an inside first screwthread compatible with that of the first tube and an outside second screwthread compatible with that of the second tube. The device further includes a system for immobilizing the tubes against rotation and a system for rotating the nut.

Abstract: A stabilized connector assembly (24) for connecting an instrument manifold (26) to an orifice fitting assembly (16) for a main flow passage (10) comprising a pair of generally identical stabilized connector subassemblies (30, 32). Each subassembly (30, 32) includes an elongate connector body (34) having an externally threaded inner end (38) for threaded engagement with an internally threaded outlet port (24) of the orifice assembly (16) and a flanged outer end (40). Bolts (58), jack nuts (68), and collar (78) form stabilizing components connected between the outer flange (40) and the orifice assembly (16) for resisting radial loads from a manifold (26) thereby minimizing any deflection of connector body (34) and resulting stress at inner threaded end (38).

Abstract: A subsea wellhead connector has a stress joint which abuts the rim of a wellhead housing. A body is carried by the stress joint and extends over the wellhead housing. The body carries dogs for moving into an engaged position with a profile on the exterior of the wellhead housing. A seal locates between the rim and the downward facing shoulder of the stress joint.

Abstract: A subsea well assembly has a tubular inner housing that locates within a tubular outer housing. A locking element carried by the inner member is biased outward for engaging a groove provided in the bore of the outer member. The inner member has a metal compression shoulder that has a skirt portion that engages the rim of the outer member. A recess located in the load ring provides slight resiliency to the skirt portion of the load ring. This resiliency allows the load ring to deflect elastically during bending forces exerted on the inner member. The slight deflection of the skirt portion of the load ring results in the locking element moving deeper into the groove to preload the connection.

Abstract: A tubular connector joint has a pin member on one of the tubular members and a box member on the other of the tubular members. External pin threads are formed on the exterior of the pin member. Internal box threads have the same pitch as the pin threads. A latch ring locates between the pin threads and box threads. The latch ring contracts and has threads on its inner and outer diameter that mate with the threads of the two tubular members. A drive key causes the latch ring to rotate with the pin member. The latch ring contracts when the upper tubular member stabs into the lower tubular member. A short amount of rotation then causes the drive ring to engage the threads of the lower tubular member.

Abstract: A pipe connector including a main body having a stepped bore in one end for telescopic insertion over the end of a pipe, creating a stepped annular area around the pipe. A slip retaining nut is threaded into the end of the main body around the pipe, closing off the stepped annular area. Slips are carried in a tapered annular space between the nut and pipe. Prior to actuation, the slips are held up in disengaged position by shear pins. A pair of metal seal rings is disposed in the end of the stepped annular area opposite the nut. A pair of dual-acting, hydraulically actuated pistons is disposed in the stepped annular area between the metal seal rings and slips. Hydraulic pressure actuates the upper piston to move upwardly to energize the metal seals, and the lower piston to move downwardly to actuate the slips into gripping engagement with the pipe.

Abstract: The connector assembly includes a clamp having a segmented latch ring radially disposed therein and mating hubs on tubular members to be connected. A downwardly facing shoulder of the clamp engages the upwardly facing shoulder of an end hub on one of the tubular members. The segmented latch ring includes a plurality of latch segments having a T-slot for receiving actuator screws which, when rotated, cause the latch ring segments to move radially inward to engage a downwardly facing shoulder on an end hub of the other tubular member. Upon actuation, the hubs are compressed together for connecting the tubular members.

Abstract: A preloaded connection for use between subsea tubular members including a flange surrounding one end of one of the tubular members, connecting means surrounding the exterior of the other tubular member, a ring, studs extending through said flange and said ring to secure the ring to said flange, nuts on said studs to secure the flange to the ring, pressure responsive means between said ring and said flange to urge said ring away form said flange to introduce tension in said studs, means carried by said ring for engaging with the external connecting means of said other tubular member, means for moving said engaging means carried by said ring into engagement with said external connecting means, and means for venting said pressure responsive means after engagement is achieved between said engaging means and said external connecting means.

Abstract: An improved length compensating joint suitable for use in repairing pipelines includes an inner tubular member, an outer tubular member which receives the inner member in close fitting engagement, seals disposed radially and axially between the inner and outer members define annular piston areas for providing selective relative motion between the inner and outer members, a pressure responsive locking piston with a camming surface for urging gripping elements into locking engagement with the inner member, a metal-to-metal seal between the inner and outer members which can be deenergized during extension or retraction operations and a test port for verifying the integrity of the metal-to-metal seal after installation. Additionally, a second embodiment provides an alternative metal-to-metal seal configuration which can also be deenergized during extension and retraction operations.

Abstract: An improved mechanism for connecting tubular members in a subsea well in which the members are locked together in a preloaded condition. In the preferred form of the invention the loading is provided by a series of fingers mounted on the inner tubular member and flexing through a restriction in the outer tubular member during landing and then springing back from such flexed position to engage and wedge against a tapered shoulder at the lower end of the restriction to both lock the inner tubular member in its seated position and also to provide the preloading desired. In a second form, the inner member is landed on a ring which is engaged on the outer tubular member landing seat and then further lowering of the inner member moves a wedge on the inner member to cause the upper end of the ring to engage the internal profile of the outer member and the lower end to engage a lower external profile on the inner member and to be wedged therein to create the lock down and the desired preload.

Abstract: An expansion band having a spanning member whose free end is provided with a locking tab for cooperation with a locking surface having a plurality of selectable locking slots. A guide channel secured to the band cooperates with the band to define a guideway through which the spanning member extends thereby maintaining the spanning member and hence the free ends of the expansion band in alignment. During expansion of the expansion band the locking tab is free to snap out of each locking slot and into the next. Upon release of the expansion forces, however, the locking tab is prevented from snapping out of the locking slot in which it is presently inserted. A novel expansion unit comprised of a manual hydraulic pump operates a duck-bill type spreader which bears against associated bearing surfaces respectively provided on one end of the spanning member and one end of the guide channel to apply direct expansion forces to the expansion band.

Abstract: A rotary valve type quick coupling for interconnecting two pressure medium conduits comprises a coupling unit (10) including a casing (14) and a spherical rotary valve element (18) formed with a socket (27), and a tubular connector nipple (12) adapted to be guidingly received in the socket (27). An elongate aperture (32) is provided in the casing (14) which permits the connector nipple (12) to be introduced into the valve element socket (27) and to be rotated conjointly with the valve element (18) between a connect/disconnect position and a connected position. A transverse annular shoulder (46) on the nipple (12) is arranged to engage a guide surface (45) on the casing (14) to guide the nipple (12) and the valve element (18) as they occupy the connect/disconnect position.

Abstract: A device for transmitting torque from a power unit to a drill string or other rotary pipe, and which is constructed upon reverse rotation to preferentially break a threaded connection between the device and a stand of the pipe without disconnecting a plurality of lengths of pipe in the stand from one another. The torque transmitting device includes a tubular structure having a thread adapted to be advanced into engagement with a thread at an end of the pipe, and a shoulder ring carried by and rotatable with the tubular structure and having a shoulder engageable against a shoulder of the pipe to limit advancement of the threads together, with axial forces being transmitted from the tubular structure to the ring by interengageable bearing surfaces which permit limited rotary movement of the structure and its thread relative to the shoulder ring.

Abstract: A running tool will set a packoff between a casing hanger and a wellhead housing utilizing weight and hydraulic pressure. The running tool has a mandrel which connects to the drill string. A lower and an upper body are carried by the mandrel. The lower body releasably connects to the casing hanger for supporting the casing hanger as it is lowered into the well. The packoff mounts to the upper body. An elastomeric seal locates on the upper body of the packoff. The upper body will move downward relative to the lower body once the casing has been cemented. In this lower position, weight of the drill string transmits from a collar to the elastomeric seal to form a seal against the wellhead housing. Hydraulic pressure may then be applied. The hydraulic pressure creates a force on the upper body to set the packoff. The running tool along with the elastomeric seal will be retrieved to the surface.

Abstract: An improved method of making up a pressure sealing threaded connection for oilfield country tubular goods is provided. A threaded connection is of the non-shouldered type, and includes a pin member having an external tapered thread and a box member having an internal tapered thread. The actual pitch diameter of the pin thread and the box thread are measured and preferably recorded on the outer cylindrical surface of each respective member. An indicator is positioned on the pin member at a preselected location with respect to the pin face end surface. The pin member and box member are made up to form the threaded connection, while the position of the box face end surface is monitored. Make-up of the connection is terminated in response to this position and as a function of the recorded deviations on the pin and box members.

Abstract: A device for coupling elements which are connected in line and which elements are carried by opposing holding plates wherein one of the plates is urged toward the other and threadingly locked with respect thereto by a rotating shaft having a threaded end portion which is engagable with a threaded member associated with the other plate and wherein the advancement of the threaded shaft is resiliently retarded in order to permit a proper meshing of the threaded elements upon their initial engagement.

Abstract: An assembly for the coupling of a multi-duct conduit system for sealing the outer and inner ducts of adjacent conduit sections in end to end relationship. There is provided a primary coupling housing which includes preferably a premolded body portion which is insertible into the outer most housing of a ducted system. The body system in the body portion comprises first and second half body portions. Each first and second half body portion is adapted to receive a plurality of ducts into bores in the body housing so that a first plurality of ducts enters and is insertible into the body portion at a first end and the second adjoining plurality of duct members are insertible into the body portion on the second end, the first and second portions of ducts being slidably engaged into the body portion and meeting substantially at a center point within the body portion, for defining a continuous pathway within the ducts for housing transmission lines therewithin.