Abstract: A connector for attaching an exhaust gas recirculation tube to an intake manifold of an internal combustion engine. A thermal isolator surrounds an end of the tube and includes a sleeve contacting the tube and merging with a cylindrical body portion which is spaced from the tube. An upset bead is formed in the body portion. The tube and thermal isolator are inserted into a flange surrounding an opening formed in the intake manifold. A retainer is inserted into the flange and rotated such that latching devices on the retainer engage hooks on the flange to prevent removal of the retainer from the flange. The retainer also has ribs for supporting the body portion of the thermal isolator. The retainer is sized to engage the bead of the thermal isolator to prevent removal of the thermal isolator and tube from the flange. The flange and thermal isolator are sealed against fluid leakage.

Abstract: Using a specially designed push-on coupling structure the facing end portions of two tubular well completion structures, such as a length of coil tubing and a tubular coupling member, are fixedly and sealing connected to one another simply by pushing one of the end portions into the other end portions. The coupling structure includes an O-ring seal member carried by one of the end portions for creating a fluid tight seal between the telescoped end portions; a radial projection carried by one of the end portions and receivable in a side wall slot in the other end portion for preventing appreciable relative rotation between the telescoped end portions; and an axially split locking ring member coaxially threaded onto one of the end portions and having a gripping thread section disposed thereon and operative to engage the other end portion in a manner permitting the two end portions to be initially telescoped with one another but precluding their subsequent axial separation.

Abstract: A fluid swivel is described, of the type that carries oil, water or natural gas at high pressure between an undersea well and a weathervaning ship, which has a seal device of increased lifetime. The seal device (56, FIG. 2 ) lies in a cavity of a first swivel part (12) and includes a rigid seal ring (62) that is slidable toward and away from a sealed surface (66). A deformable seal (60) can be backed up by the seal ring, with the seal ring sliding to close the extrusion gap (70) into which the seal could extrude when high pressure fluid enters the swivel. A pressure source (80) coupled to the cavity urges the backup part to deform radially and slide toward the sealed surface with a force that increases as the pressure of fluid in the swivel increases.

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

Abstract: A pipe coupling comprises a pair of flanges adapted to be secured together in face to face relation to form a fluid-tight coupling. Each flange incorporates at least one coding device formed to provide a key and a keyway, which coding devices are so disposed and arranged on the flanges that the two flanges can only be secured together to form the fluid-tight coupling if the coding devices on the respective flanges correspond with one another, and each of the pair of coding devices comprising, secured within a hole in a flange, a bar member whose cross section is partly cut away to provide the keyway and key, and the bar member being secured in the hole in one of a predetermined number of relative orientations, selectively achieved by adjusting, by rotation, the bar member in the hole.

Abstract: The sections of concrete tubes or rings are connected end to end by means of a joint, and, in order to prevent aggregates and other undesirable materials to penetrate into the joint when a space is formed in the latter following climate modifications or other disturbances, there is disposed at the level of the joint, a ring of flexible material, which includes a flange made to remain pressed against the joint and to cover the latter permanently even if a space is produced in the joint. This ring is preferably fixed at one of the sections of tube and this ring may even be made of two interconnecting members.

Abstract: Adapter pipe fittings for sprinkler or drip-type irrigation systems are improved by providing a two piece pipe fitting, a manifold piece that snaps into a body piece and swivels therein. Such adapter pipe fittings are often required to be installed adjacent to a sidewalk, wall, fence, or other like obstruction whereby there is restricted clearance especially if the pipe fittings has laterally projecting offtake connector members extending therefrom. The fitting is especially well adapted for installation at sites where there is restricted clearance because the body piece can swivel about the manifold piece and the manifold piece is therefore not required to turn while the adapter pipe fitting body piece is being screwed onto an underground piping system.

Abstract: Connector connects two annular objects face-to-face. It may be used as a hose end coupling that connects two flanged hose ends end-to-end. It includes two components of the same configuration that connect directly to one another. Each a hose end flange preferably has a tapered back face and an O-ring seal fitted in a groove in the end face to engage an O-ring seal on the end face on the mating component. To hold the two end flanges together, two connector components of the same configuration are mounted on the respective end flanges. Each includes two part annular retainers that engage over the hose end flanges and urge them together. The web joining the two retainers has an offset section with teeth that engage similar teeth on the other connector component. The coupling is intended for use in breathing gas supply systems such as are used in medical applications.

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: The disclosure relates to a threaded member having an annular groove which is of greater depth than the base of the adjacent thread. A resilient ring is mounted in the groove having an outer periphery extending above the base of the thread and a plurality of projections are formed at spaced locations around the ring to be deformed by the engagement of the threaded member with a corresponding threaded member to form a seal between the respective threads of the engaging members.

Abstract: An improved connecting device for of securing a pipe fitting of one material to a pipe of another. This invention provides a connector body with an insert fitting which does not leak therebetween. Further, the invented device has an integral annular flange, which extends into the surrounding body thereby preventing the body from expanding with heat and slipping with relation to the insert upon engaging the fitting with a nipple or other pipe material, and twisting forcefully.

Abstract: A spring clip having two apertured end portions. In the preferred embodiment, the first end portion has an unidirectional clutch formed into the aperture wall, or face. The second end portion provides an aperture wall formed to provide an anti-rotation feature. In one embodiment, the clip is used with fluid adapters, the second end portion face having a serration and shape which raises the serration above the parent material to mate with the serration in the upper portion of the adapter lockring. The second end portion has different shapes depending upon the spring clip application.

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

Abstract: A tube coupling assembly for use in connecting first and second fluid-carrying tubes comprising an annular sleeve member and an annular ferrule which are operably affixable to respective ones of the tubes. A tube connector and a coupling nut threadingly engage one another so as to force first and second spherical surfaces of the sleeve member against generally frusto-conical surfaces of the ferrule and coupling nut respectively, thereby forming a fluid sealing means and accommodating angular misalignment between the tubes. An internal locking means is provided for preventing the disengagement of the sealing means. The coupling nut and tube connector each include wrenching surfaces which must be used to torque the assembly, with the applied torque and counter-torque avoiding torsional loading of the tubes.

Abstract: An external capture device for separable connectors used to connect fluid and electrical tubing and conduits. Two or more spring bands or clips are semi-circular and serrated in form and joined by one or more substantially axial bridges or bars. The spring clips are sized to tightly grip the driving external surfaces of the separable connector to be secured. The driving surfaces of the connector may be of differing circumference. Both axial distance and alignment of the driving surfaces are not critical to attachment of the capture device. The capture device may be added or removed from a closed connector, the bridge or bar forming a convenient means for gripping the device.

Abstract: A connector for coupling pipes having a small diameter includes a generally cylindrical main body 1 having a connecting end portion 2, a small-diameter chamber 3' which is larger in diameter than the bore of the end 2, and a large-diameter chamber 3. The end portion 2 and the chambers 3' and 3 are coaxially connected with one another. The large-diameter chamber 3 is surrounded by a wall having a pair of window openings 9, and a pair of resilient arms 7 each lying in one of the window openings 9 and having a radially inwardly bent pawl 5. The small-diameter chamber 3' contains seal rings 6, a bush 12 and a sleeve 13 positioned on the opposite side of the seal rings from the bush, which are all fitted about a pipe P connected in the main body 1. The large-diameter chamber 3 contains a cylindrical holding member 8 having an inner surface portion engaged with a wall portion of the pipe P, and an outer surface having a shoulder against which the pawls 5 are held.

Abstract: A connector for terminating a metal clad electrical cable is suitable for use in hazardous locations. The connector includes an elongate generally cylindrical body having a cable receiving end, a conductor egressing end, and a central axial bore therethrough. An elongate generally cylindrical hub accommodates the body. The hub has a body receiving end, a conductor egressing end, and a central axial bore therethrough. A cable seal is provided by a sealing bushing and a gland nut which is rotatably coupled to the cable receiving end of the body, sealingly coupling the cable to the body. The body and the hub include cooperative engagement elements for preventing the relative rotation of the hub and the body upon rotatably coupling the gland nut to the body about the cable.

Abstract: In a compression type union for compressing two tubing segments against an intervening washer, a male nut, a female nut, and a pair of caps, the caps having interengaging tongues and slots. The nuts bear against respective caps, and the caps bear against respective heads of the tubing segments. The caps being non-integral with either tubing segment or with either nut, and there is no interengagement of any kind between the nuts and the tubing segments. The union can be joined without concern for positioning either of the nuts.

Abstract: A tube coupling comprises first and second coupling components having transversely extending sealing end faces in aligned face-to-face relationship. First and second nut members are arranged to drive the sealing end faces toward each other. An annular anti-twist member is located between the first nut means and the first coupling member for conducting axial forces from the first nut member to the first coupling component. The annular anti-twist member and the second nut member include axially engaged portions for preventing relative rotation therebetween.

Abstract: A plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene, said system being provided with metallic connecting sleeves as well as reducers for connecting the plastic pipes to fittings of metallic materials, and being provided with shut-off valves made of plastic material and having a plastic-encased metallic valve seat for mounting in pipe lines, and being provided with pressure-type screw connections for the pipes to be joined to each other and with reducers for connection to radiators, wherein a welding device having an arrangement for equalizing the lengths of the plastic pipes is used to weld parallel plastic pipes.

Abstract: A tube connection consisting of a nipple structure and a sleeve member in which the nipple structure includes a tube-receiving portion provided, starting from an abutment surface with a substantially cylindrical section and an outwardly flaring clamping surface. The sleeve member is provided with a first internal section of substantially cylindrical shape followed in the direction toward the free end of the tube-receiving portion with an outwardly flaring clamping surface, whereby the internal diameter of the cylindrical section of the sleeve member is only slightly larger than the maximum diameter of the tube-receiving nipple portion. In one embodiment, the nipple structure and sleeve member are provided with complementary locking means to enable locking of the sleeve member in the clamping position by axial movement in the direction of the free end of the tube-receiving nipple portion and subsequent rotation of the sleeve member into predetermined locking position.

Abstract: A unique quick-connect receiver is disclosed for connecting an adapter to the receiver. A lock pin within the receiver is moved eccentrically to force the adapter further into the receiver, and lock the adapter. The adapter and receiver have mating Z-shaped surfaces which are forced to ride along each other as the adapter is moved to be locked within the receiver. The combination results in a high strength connection that may be quickly connected and disconnected.

Abstract: A connector assembly connects a hub connector to a wellhead housing by utilizing a collet. The collet has an upper internal projection that engages the hub connector and a lower internal projection that engages the flange on the wellhead housing. An actuator ring moves the collet from an unlocked to a locked position, the actuator ring moving axially. A drive nut, when rotated, will move the actuator ring downward. Load screws extending through the drive nut force the actuator ring further downward after the drive nut has reached its lower position. Release pins extending through the actuator ring, when rotated inward, will pry against a release surface to move the actuator ring upward relative to the drive nut.

Abstract: An orienting intercarrier assembly is provided for oriented interconnection and locking of tubing conveyed perforating guns. The apparatus incorporates upper and lower intermediate adapter sections including tapered guide surfaces that correct for axial misalignment as the adapters are stabbed into sealed assembly. The adapters are also provided with alignment pins and rotational alignment guide surfaces that enable the adapters of the intercarrier assembly to be properly assembled and locked only when precise rotational orientation therebetween has been established. The apparatus also incorporates a locking mechanism enabling the adapters to be securely locked in assembly and to be retained against inadvertent disassembly.

Abstract: A heating apparatus for providing heat and a resting place for reptiles or the like. The heating apparatus includes a housing and a heating device located at a selected level within the interior of the housing. When the reptile rests on an upper surface of the housing and the heating device is activated, heat is conveyed to the upper surface by convection currents. The housing resembles a limb and branches to simulate the natural habitat of the reptile. The limb is held above the bottom surface of the enclosure containing the reptile. The limb is injection molded and includes two body halves that are matingly joined together after the heating device is desirably positioned relative to the body halves. The branches are movable relative to the limb and one of the branches includes a channel for concealing portions of the electrical cord connected to the heating device.

Abstract: A pair of elongated cylindrical members are constructed with first and second collars extending axially beyond their adjoining ends. The first and second collars have adjoining indentations and projections at their end edges which are adapted to interlock with one another so as to prevent rotation of the two elongated members with respect to one another. A coupler is removably fitted over the exterior of the first and second collars and holds them together against axial movement with respect to one another. The collars are each welded to the axial ends of the first and second cylindrical members.

Abstract: An arrangement for connecting two parts of a fluid system, preferably an aseptic system, by which the pressure gradient acts from the outside to the inside. The one system part carries an O-ring in a groove open to the other system part and open radially outwardly and the other system part is pressed against the O-ring by an axial holding device. To avoid dead space, in which bacteria could deposit, a space formed by the O-ring, the two system parts and the axial holding device is provided with a communication to the surroundings.

Abstract: A pipe coupling is disclosed. The coupling includes a pair of hub members and a pair of coupling members surrounding the hub members. A plurality of projections extend outwardly from the coupling member and are received in receiving recesses in the other coupling members. Relative rotation of the coupling members moves the projections behind locking flanges into a locking position. A pivotally mounted lever on each connecting member is received by a locking recess on the other connecting member when in the locking position.

Abstract: The present invention discloses a universal, adjustable pipe joint which permits a wide variety of possible adjustments with simple means in well drilling technology. In principle, the joint disclosed in this invention can be readily used for joining articles of all types which included tubular, pipe-like, projections.

Abstract: A plug-type connection for a tubular body comprising a tubular holding element (1) slit in crown-like manner to form tongues (2) to receive the tubular body (30), and an annular collet (20) to be inserted onto the holding element (1) to clamp the end region of the tubular body (30) to the holding element (1). The collet (20) is a single piece and U-shaped in longitudinal section and has an inner arm (21) which is slit in crown-like manner and an outer arm (22). A circumferential shoulder (8) is formed on the holding element (1) outside the central bore (3). A pin (26) on the end of the outer arm (22) of the collet (20) fits into a depression (9) in the shoulder (8) of the holding element (1). A spherically shaped projection (27) fits into spherically shaped recess (10) in the shoulder (8) of the holding element (1). The recess (10 ) is staggered by an angle of rotation with respect to the depression (9). The spherically shaped projection (27) is located on the end of the pin (26).

Abstract: An insulated fitting for a flexible air duct wherein the fitting has a collar for dressing the end of the flexible air duct coupled to the fitting. The fitting can be a tee, wherein the collar is connected to a retaining ring rotatably mounted to the main conduit of the tee so that the angular position of the tee can be varied depending upon the desired direction of the branch conduit of the tee. The retaining ring has a base portion for securing the T-fitting to a supporting surface The fitting can also be a wye and a reducer.

Abstract: An improvement in a control valve having a body, a body interior portion and plural exterior ports in communication with the interior portion. The improvement includes a plurality of dovetail-like body slots "isolated" or spaced from other slots. Each slot intersects an aperture in fluid communication with the body interior portion. A complementarily shaped, friction-retained slide-by plate is in each slot and at least one plate includes a port in fluid communication with the slot aperture. Each plate slides for removal without disturbing any other plate. A plate may be a blind closure plate, a ported plate tapped with any of several thread sizes or a "back-to-back" interface plate for supportively mounting valve bodies in tandem. A control valve system including a slotted valve body and an assortment of plates of various types provides substantially "universal" porting between the body and another valve body and/or one or more separate control components.

Abstract: A connector assembly for connecting double walled insulated tubing uses connector members each having inner and outer walls engaging inner and outer walls of the tubing, and end walls which are configured to interengage and form a lapped joint, each outer wall and optionally each inner wall of each connector member being associated with a support ring so that each tubing wall is clamped between a connector wall and a support ring by blind rivets or other fastenings passed through the connector wall, the tubing wall and the support ring. The connector assembly can be either factory applied or applied in the field using available hand tools, yet provides a neat and reliable connection.

Abstract: A cuff type air seal for sealing the overlap of partly telescoped parts that has an annular body of rubber or elastomer material having annular internal air sealing beads thereon which are adapted to fit on outer peripheral surfaces of the parts adjacent their overlap. Both parts have fixed outer diameters but the outer part may be a blow molded annular component having an internal diameter which varies so usually there is clearance and a potential air leak path at the overlap. An adjustable clamp encompasses the air seal and provides a constricting force so that the air sealing beads seal on the outer surfaces of the parts even though the clearance remains. The cuff is formed with a pocket that receives and retains a headed portion of the blow molded part when telescoped over the facing headed portion of the first part, particularly when the clamp is constricted.

Abstract: A redundant locking fluid coupling has a first coupling element including a coupling nut and a second coupling element including an outer ring biased towards the sealing end, such as by a coil spring. The coupling nut and outer ring include circumferential ends that are engaged when the coupling nut is tightened on the second coupling element inner member. Rotation of the coupling nut in a loosening direction is prevented by ratcheting teeth, or, in an alternative embodiment, complimentary sawtooth teeth, in the circumferential surfaces of the coupling nut and outer ring. Loosening of the coupling nut may be accomplished by sides of a wrench engaging a wrench lead in chamfer forcing axial movement of the outer ring to disengage the ratcheting teeth, or in the alternative embodiment, loosening torque being sufficient to overcome the thread torque and the increased frictional force across the complementary sawtooth teeth.

Abstract: A pipe coupling for connecting a pipe (6) to a fitting (5). The coupling comprises an annular assembly (1) incorporating a gripping ring (4) for inserting into a radial gap between the pipe (6) and the fitting (5), and structure (8,9) for applying an axial load to the annular assembly (1) so that the gripping ring (4) is biased radially against the pipe (6). The gripping ring (4) is defined by a plurality of separable segments dimensional such that when the annular assembly (1) is axially compressed each of the segments is biased against the pipe (6).

Abstract: A pipe coupling device wherein the connection between pipe members is made by rotating one member relative to the other member so that a plurality of radially extending surfaces of one member face corresponding radially extending surfaces of the other member. The facing surfaces can be flat and planar. The plurality of facing flat surfaces initially face each other in an interlocking arrangement which is not tight. A single threaded adapter is then tightened to draw the plurality of facing surfaces of one member tightly against the corresponding facing surfaces of the other member.

Abstract: An apparatus for quickly disconnecting two tubular flow lines comprising first and second units including first and second tubular members which have mutually tapering interengagement surfaces, and end terminals, the members respectively associated with the two flow lines and the members being axially interfittable; the first and second units including first and second protectors respectively associated with and extending about the end terminals, the protectors positioned to radially and axially overlap when the members are brought into interfitting interengagement at the tapering surfaces.

Abstract: A snap-on tubular coupling for joining tubular conduit members of the type having axially extending grooves for guiding geophysical instruments. The coupling comprises an unthreaded sleeve slotted to provide outwardly deflectable segments at one or both ends to snap onto ends of the conduct members to be joined. An internal circumferential rib on the sleeve engages a circumferential groove on the conduit. A cylindrical key or button on the casing engages a slot in the end of the coupling to ensure that the longitudinal grooves of the conduit members are in alignment.

Abstract: A gasket and retainer arrangement for use in a coupling of the type having first and second coupling components with opposed end faces including sealing ribs extending axially therefrom with an annular sealing gasket interposed therebetween comprises a retainer device for maintaining the gasket in a predetermined located position relative to the end face of one of the components. The retainer includes a generally sleeve-like body defining a retaining portion closely received over the one component at an area rearwardly from the associated radial end face. A plurality of axially extending leg portions are spaced about the retaining portion and extend axially beyond the associated end face. The annular sealing gasket has an outer periphery of a diameter at least slightly greater than the inner diameter of the sleeve-like body with recesses formed in the outer periphery to receive the axially extending leg portions whereby the gasket is maintained in aligned relationship with the end face.

Abstract: In accordance with this invention, an adjustable coupling device for releasably interconnecting confronting ends of first and second fluid carrying conduits is provided. A bell flange is attached to the confronting end of one of the conduits. This bell flange has an arcuate internal sealing surface adjacent the lip thereof and a recess extending inwardly longitudinally from the arcuate sealing surface. A sealing flange is attached to the confronting end of the other of the conduits and is sized to be received within the bell flange. It also includes a peripheral abutment spaced from the outer end thereof. A sleeve is mounted on the end of the sealing flange and has a curved outer surface and an inner surface engageable with the abutment to limit the inward movement thereof. A sealing ring is mounted on the sealing flange adjacent the sleeve and is engageable with the arcuate sealing surface of the bell flange when the flanges are drawn together.

Abstract: A conduit for dispersing or gathering liquids in the earth has an arch shape cross section and alternating peak and valley corrugations along its length. At one end of the conduit is a sub-arch for receiving a pipe. In one embodiment there is a discontinuous valley by the sub-arch and a continuous web on the peak corrugation near the sub-arch in combination with cantilevered legs. In another embodiment the web is discontinuous while the valley is continuous in the region of the sub-arch. Both essential constructions provide a strong joint when conduits are mated to each other and are buried in the earth and subjected to a load.

Abstract: An improved pipe branch fitting for use with a pipe having a pre-cut hole is disclosed. The branch fitting has a cylindrical body freely slidable along the pipe to a point where the hole is pre-cut. On one side, the cylindrical body carries an internally threaded boss into which a modified sprinkler head may be threaded. A gasket positioned between the sprinkler head and the pipe gives the seal as the sprinkler head bears upon the gasket upon tightening of the sprinkler head. The inner end of the modified sprinkler head has a stepped shoulder which abuts the periphery of the hole in the pipe and limits compression applied to the gasket. A reduced diameter end portion of the modified sprinkler head locates itself in the hole and indicates if the fitting is misaligned with the hole. The end walls of the body are each tapered toward the boss to facilitate the sliding of the cylindrical body, when assembled on the pipe are supporting structures of a building in which the piping system is being installed.

Abstract: A tube coupling assembly particularly suited for ultra-high vacuum applications comprises a pair of coupling components having through passages and abutting end faces. Each end face includes an annular continuous rib or bead. A threaded coupling nut acts to drive the ribs into sealing engagement with the opposite sides of flat annular sealing washer gasket positioned between the end faces. To prevent relative rotation between the end faces and the sealing gasket, as well as to prevent torque transmission to related system components, protrusions are provided which engage the coupling components to produce a driving connection between the gasket and/or the two coupling components prior to engagement of the ribs with the gasket. Also, a resinous plastic bearing washer is used between the coupling nut and the associated coupling component to reduce torque transmission during make-up.

Abstract: A jug and dispensing valve therefore in which the jug, when positioned in a dispensing position, has a threaded dispensing neck extending horizontally from a location of a side wall adjacent the bottom wall, a second neck extending horizontally from a location of said side wall near the top and a third neck extending vertically from said second neck, said third neck having an upper free end substantially co-planar with the top wall and providing access for refilling, said dispensing valve affixed to the threaded dispensing neck and including a liquid receiving member, a split threaded sleeve for securing the liquid receiving member to the jug, a collar for holding the split threaded sleeve together and a spigot for controlling the flow of liquid through the liquid receiving member.

Abstract: An apparatus to provide a threaded coupling for a pipe to enable the pipe which has had its threads broken to be joined to a mating threaded pipe. The threaded coupling permits the coupling to be affixed to the pipe when the pipe is located in a difficult to reach area. The invention is used with a pipe which has been broken in a house wall and it is desired to not have to rip out the entire wall to get at the pipe. A transverse opening is drilled in the pipe after a small section of wall adjacent the threaded end has been removed and a pin inserted into the opening. Thereafter, a collar with a recessed wall to accommodate the head of the pin and a shelf to abut the head of the pin serves to form a secure retaining means onto which a gasket to seal leaks and a pressing ring for engagement with a mating coupling is affixed so that the broken pipe can be joined to a mating pipe.

Abstract: A fitting having members threaded together to a desired position is provided with an arrangement for locking the members against relative rotation so as to maintain the members within a predetermined angular range of rotation relative to each other which encompasses the desired position. The locking arrangement includes longitudinally extending recesses in the outer surfaces of the fitting members which are axially aligned, and an insert which is fitted in a set of axially aligned recesses to lock the members against relative rotation. The recesses are keyhole shaped. The insert is also keyhole shaped in cross section, or is cylindrical. The insert may be made of suitable plastic such as nylon, or may be metallic. When the insert is of a material that is resiliently deformable, it may be laid over and then pressed into the recesses. A metallic or other less deformable insert, such as a rod or wire segment of safety wire, piano wire, etc.

Abstract: A steam turbine is disclosed which eliminates the transfer of thermal deformation from the inner cylinder to the stationary blade assemblies. A dual plane bolted connection and a free floating tongue and groove interface formed between the outer ring of the stationary blade assemblies and the turbine inner cylinder provided the clearance necessary to remove the deformation associated with the stationary blade assemblies, while supporting them within the turbine assembly. The outer ring of the stationary blade assemblies may either be formed as an integral component of formed from two sections which are then welded together. The present invention also permits the rotational blades of the turbine to be placed in close proximity to the outer ring of the stationary blade assemblies and the positioning of the flow guide on the outer ring, since the deformations due to the thermal deformation of the inner cylinder are now isolated and the deformation due to the stationary blade assemblies is eliminated.

Abstract: The present invention discloses a universal, adjustable angle, pipe joint which permits a wide variety of possible adjustments with simple means in deep well drilling technology. In principle, the pipe joint disclosed in this invention can be readily used for joining articles of all types which include tubular, pipe-like, projections.

Abstract: A fluid connector fitting nut lock includes a sleeve that fits down over the nut and that has an integral locking mechanism to fix the sleeve in a raised position that allows the nut to be turned and in a locked position that prevents the nut from backing off due to vibration or other external forces. The integral locking mechanism eliminates the need for a separate lockwire or clipwire.