Abstract: A swivel coupling device is designed for coupling together the mating ends of two tubular fittings forming part of a pressurized fluid, fuel or gas connection system between a fluid, fuel or gas supply and an output device. The device has two relatively rotatable coupling parts with mating flat faces rotatably secured together in face-to-face engagement. Each of the flat faces has a recess with a circular outer periphery matching that of the recess in the other part, and each part has a passageway extending through it to the recess from a point on its outer surface remote from the flat face. Suitable connecting fittings are provided for connecting the passageway on each part to a respective tubular fitting so that the fittings can be swivelled, via dual axes, omni-directionally, relative to one another while fluid, fuel or gas communication between the fittings is maintained through the passageways and recesses of the coupling.

Abstract: A coupling device for metal tubular members subjected to pressure where abutting coupling members define a V shaped groove. A metal annular V shaped sealing member constructed from resilient metal is disposed in the V shaped groove and arranged so that the sealing member has sealing edge portions which can expand longitudinally and radially to maintain a seal if the coupling members tend to separate or contract in response to pressure.

Abstract: A conduit coupling device includes a tubular casing with front and rear sections of reduced and enlarged diameters. A pair of relatively diametrically movable arcuate clamp members of channel shape with cross webs and flanges is provided, one of the webs having peripherally extending tongues slidably engaging the other clamp member channel. A radial screw engages a tapped bore in the casing rear section and bears on and is clinched to one of the clamp member webs the other clamp member being fixed to the casing. A pair of the casings may be integrally coaxially formed and house similar clamp assemblies or the casing may terminate in an externally threaded coupling tube projecting coaxially forward from the casing front section.

Abstract: A quick pipe coupling a circular receiving chamber adjacent to the orifice thereof for holding a movable taper ring and an inflatable tube, an U-shaped lock pin releasably inserted therein to retain the taper ring in place, a toothed lock ring fastened in the orifice, wherein the movable taper ring is squeezed by said inflatable tube against the teeth on the toothed lock ring when the U-shaped lock pin is removed from the pipe coupling, causing the teeth on the toothed lock ring to respectively engage into the outer surface of the pipe inserted through the lock ring, the movable taper ring and the inflatable tube into the pipe coupling so that the pipe inserted therein is firmly retained in place.

Abstract: A leak repair clamp for pipe and pipe flanges providing a segmented frame adapted to receive interchangeable annular segmented inserts. All of the inserts provide for interlocking connection with the frame segments but each insert is adapted to fit around one particular diameter cylindrical surface out of a range of different diameter cylindrical surfaces. By selecting particular sized inserts, a single frame can accommodate a wide range of different diameter pipes and pipe fittings. When the insert segments are interlocked into the frame segments, the frame segments are then integrated by bolting threaded studs through flanges to form a unit, which in combination with two interlocked inserts is fastened around and against the cylindrical surface. Thrust restraining set screws are provided to prevent movement of the metal frame relative to the cylindrical surface the frame is fastened around and against.

Abstract: A hose construction, coupling unit and system therefor and methods of making the same are provided, the hose construction comprising a flexible hose having opposed ends, a tubular member having opposed ends one end of which is carried by one of the ends of the hose and other end of which extends outboard of the one end of the hose, and an annular coupling unit rotatably carried on the other end of the tubular member outboard of the one end of the hose, the coupling unit having an externally threaded portion for threadedly connecting with an internally threaded coupling device, the coupling unit having an annular portion provided with a tool gripping external peripheral surface for rotating the coupling unit on the tubular member in order to threadedly interconnect the threaded portion with the coupling device, the annular portion being a part that is separate from the threaded portion so as to be adapted to be rotated relative thereto to tend to prevent unthreading of the threaded portion from the coupling de

Abstract: The invention relates to a releasable coupling between a male element and a female element. The coupling comprises a split clamp ring that is ranged to be received in corresponding annular recesses in the male element and female element, whereby the ring shall have one wedge surface to engage with a support surface in one recess on the male element and another wedge surface obliquely, disposed from the first wedge surface to engage with a support surface in the other recess in the female element. By applying a circumferentially directed force to the end portions of the split ring, it will be possible to achieve a locking engagement between the ring and its matching recesses, thus assembling the male and female elements to each other.

Abstract: A safety connection for connecting a plug into a tubular member such as in a passage of a choke or valve body, the tubular member having a threaded port extending into the interior of the passage, a plug body positioned within said passage and having an external groove being aligned with the opening of the port into the interior of the passage, a threaded plug positioned within said port, and having an inner end engaging within the external groove in the plug body, sealing means between said plug body and the interior of said passage, means for sealing between the interior of said threaded plug and the threaded port, a vent opening extending through said threaded port and being sealed by the seating of said threaded plug in said threaded port, the partial unthreading of said threaded plug outwardly in said threaded port opening the vent opening for venting pressure from within the tubular member while maintaining the inner end of the threaded plug in engagement with the groove in the plug body to retain it in

Abstract: A pin and box connection for connecting tubular members together utilizes a split sleeve. The split sleeve is carried on one of the members and has the ability to retract. This allows the members to be snapped together without rotation. The split sleeve is threaded, and the threads ratchet over each other when snapped together. A locking pin is located in one of the members for engaging a longitudinal slot in the other member. The locking member prevents the members from rotating to unscrew once snapped together. The locking pin can be removed to allow the members to be unscrewed from each other.

Abstract: A joint having no external protrusions consisting of the mating cylindrical nds of two tubular members joined by interlocking cogs on the male and female ends of the tubular members, and a pair of facing ramp surfaced rings disposed in the joint with one ring integral with or affixed immovably to the male end of one tubular member, the other ring rotatably disposed upon that same member within the joint so that when the movable ring is rotated by means of a spanner wrench or equivalent tool relative to the stationary ring, the juxtaposed ramp surfaces ride upon each other causing the movable ring to move axially relative to but in continuing contact with the stationary ring until contact with the female end of the other tubular member in the joint is established and the joint is thereby made rigid.

Abstract: The quick-coupling connector assembly for pipes, piles or the like is constituted of a pair of half-couplers, male and female respectively, capable of being connected to the ends of the pipe to be joined. The male half-coupler possess, on its external surface, an annular raised profile capable of being coupled with a corresponding annular raised profile present on the internal surface of the female half-coupler close to its end, the female half-coupler being equipped, starting from its end, wih axial slits defining, along its entire surface, a plurality of outwardly elastically flexible lamellar elements, adapted to permit the fitting of the female half-coupler over the male half-coupler and the coupling together of the respective raised annular profiles. An axially movable ring is also provided, capable of being fitted over the female half-coupler and of being blocked in position for preventing radial deformations at the end of zone of the female half-coupler itself.

Abstract: Escape of the blow medium at the blow mandrel/HDPE contact surface is prevented during extrusion blow molding of HDPE with an aggressive blow medium if a blow mandrel with a movable sealing element is used.

Abstract: Misaligned pipes for handling fluids under high pressure are coupled by a sealed union which, despite the angular displacement of the pipes, remains sealed during the heavy shocks which occur during high pressure service. The coupling employs a conventional annular seal, typically an O-ring, and can be made up without applying a significant bending stess to either pipe.

Abstract: A pipe connector especially suitable for interconnecting a marine riser to a subsea wellhead, the connector comprising an annular body that telescopes over the wellhead, and a plurality of lockdown screw assemblies extending through radial ports in the body to releasably grip and secure the connector to the wellhead. Each screw assembly comprises a lockdown dog for engaging the recess beneath the wellhead hub flange, a bolt-like dog retainer secured to the dog and slidably extending into a lockdown screw that is threaded into one of the radial ports, and a spring system for biasing the dog away from the lockdown screw towards engagement with the wellhead.

Abstract: The coupling of the present invention is adapted for use with a micromanipulator and a pair of pipettes. The micromanipulator comprises a pair of elongated arms and linkage connected to the arms for moving the arms in a plurality of directions. The coupling includes a housing having an arm receptacle at one end and a pipette holding device at the opposite end. A ball and socket swivel is provided within the housing and comprises a movable socket member which is matingly engaged with a spherical ball. The ball is connected to the pipette holding device. A threaded bolt engages the movable socket member and is adapted to cam the socket member into frictional engagement with the ball so as to lock the ball and socket joint against movement.

Abstract: A quick-disconnect device for coupling segments of a diver's umbilical ho includes separable rectangular bodies carrying complementary hose couplings spaced therealong. The bodies, which have nested rim and reduced portions, are biased toward separation by a rectangular, flat-type spring and releasable retained against separation by a retractable retaining pin extending diagonally therethrough and normally locked against retraction by partial rotation.

Abstract: A steel coupling system that is joined together by standard oil-well tubing threads, but is prevented from backing out by a set screw system, and is sealed by a compressible gasket, which creates an internally flush, or straight transition across the inside surface of the coupling system. Both the male and female halves of the coupling system are affixed to unidirectional, or longitudinally-reinforced nonmetallic composite pipe by a friction-grip technique that radially compresses the composite pipe wall at right angles to the longitudinal reinforcing fibers. The coupling system is designed in such a way that the greater the axial tensile stress across the coupling the greater is the gripping action, or the compression of the nonmetallic composite pipe wall.

Abstract: A locking mechanism for securing the upper housing of an annular blowout preventer to the lower housing. A split latch ring having a plurality of angled teeth cut in its outer diameter is expandable into the lower housing which is provided with a plurality of locking grooves contoured to mate with the teeth. A locking ring with a tapered outer surface mates with a tapered inner surface on the latch ring for expanding the latch ring. Bolting the inner locking ring to the upper housing causes downward movement of the locking ring forcing the latch ring outwardly and down the taper of the engaging teeth. The upper housing is locked to the lower housing as the upper housing has a shoulder engaging the lower edge of the downwardly moving latch ring causing seating of the upper housing on to the lower housing and compensating for variations in machining tolerances.

Abstract: A locking device for pipe couplings of the non-threaded type arranges an elongated rotatable cam transversely of the coupling in engagement with a pipe positioned therein and extending therefrom to forcefully engage the pipe in the coupling to prevent deviation from the axis of the coupling as well as rotation of the coupling relative to the pipe or vice versa.

Abstract: A locking device for connectors or closures which device prevents rotation of the means for holding a pair of members in engagement wherein the locking device includes a shield which overlies all surfaces on the locking device which might be engaged by a wrench to rotate the locking device while the closure is subjected to pressure. The locking device includes a pressure responsive member exposed to pressure within the closure which carries the shield and positions the shield to overlie all surfaces on the device on which a wrench may be placed and when there is no pressure differential across the pressure responsive member permits the shield to be moved to an out of the way position exposing a wrench surface.

Abstract: A marine riser including a uniquely designed three element connection structure and associated connecting and releasing means for the inhibiting of fatigue failure caused by moments and axial loads resulting from relative motion between the fixed ocean bottom and a floating drilling platform or ship, such as a semisubmersible rig. The system includes a preloaded connection including a female member and a male member coaxially aligned and held in compression by a nut placed in tension. The connection holds riser pipe sections together. The connection is preloaded through a tool to a degree such that when a load equal to the yield strength of the pipe section material is applied to the pipe sections joined by the connector, the compressed faces of the male and female members do not separate from each other. The degree of preload would be sufficient to maintain the contact between the compressed faces under expected working loads of the pipe sections.

Abstract: A pipe system with a first and a second buttress, each buttress including a support tube having a central axis. The support tubes are axially aligned and spaced from one another. The buttress also includes a camming surface. A tubular first and second follower coaxially surround respective support tubes and are axially freely movable and rotatable thereon. The followers are proportioned and arranged to contact the camming surface so as to assume a respective first and second axial location as a function of a first and second rotational position. A pipe link comprises a rigid length of pipe having a length short enough to fit between the follower members when they are at their maximum spacing from one another, and long enough to be trapped by them when they are brought to their minimum spacing. The pipe link can thereby be inserted when the followers are turned so as to move apart from one another and can be trapped and held to form a fluid circuit when they are turned so as to approach one another.

Abstract: A repair part for a small ball joint is provided in the form of a sleeve open at least at one end and having a flattened section extending from that one end toward its middle. A slot extends lengthwise of the flattened section and is open at the one end of said sleeve to embrace the shank of the ball part of the joint. A retainer member extends inwardly from the wall of the sleeve at a location generally opposite the end of said slot, for engaging the socket part of the joint and holding the sleeve around the assembled joint.

Abstract: A mechanical pipe connector which is especially suited for interconnecting sections of large tubular piling. The connector includes a tubular inner member having a wall with a first annular groove cut in the outside face thereof, and a tubular outer member having a wall with a second annular groove cut in the inside face of the wall. At least one hole extends from the second annular groove through the wall of the outer member to the outside thereof. The inner member fits into a passage in the outer member with the first and second annular grooves juxtaposed to form a common annular channel between the inner and outer members. A flexible locking tape is inserted through the hole in the outer member and into the annular channel to lock the inner and outer members securely together. The locking tape and the annular channel each have a polygon cross-sectional shape with the polygon having obtuse angles to minimize the stress concentration on the loading tape and on the walls of the annular channel.

Abstract: A connector including two interfitting tubular elements and a locking ring having at least two staggered rows of locking lugs cooperating with corresponding locking lugs of one of the tubular elements. The locking lugs are inscribed in cylindrical surfaces having different radii, so that when the ring is inserted on the element, its lugs slide effortless on the lugs of the first lug row of the element to a position where the lugs of each lug row of the ring can pass between those of a corresponding row of the element to form a plurality of bayonet couplings which can then be simultaneously locked.

Abstract: A coupling for connecting tubular conduits and the like in end-to-end relation, the connected ends of the conduits having identical external threads formed thereon. The coupling includes inner and outer coupling elements, the inner of which is longitudinally moveable within an internal bore in the outer and both of which have threaded internal bores which enable both elements to be threaded onto either of the conduit ends to a position enabling alignment of the conduits by relative lateral movement therebetween after which the outer coupling element may be threaded onto the other of the conduits so as to draw the adjacent ends of the conduits into aligned abutting relation. In an alternative embodiment, the inner coupling element may be moved longitudinally onto the threaded end of the conduit without requiring threading thereon, after which the inner coupling element may be removed by unthreading.

Abstract: A sealed connection for two cylindrical members includes semi-cylindrical connector sections sized to fit about the members, to bridge the joint between the members, and to be retained in position. An over-center flexing seal is also provided between two such members, as for example pipe members.

Abstract: A tamper-resistant flow control attachment for shower installations is disclosed including a tubular housing adapted to be disposed between a shower arm and shower head. A first set screw locks the attachment to the shower arm. A tubular shell enclosing at least a portion of the housing and freely rotatable relative thereto conceals the first set screw. The shell includes a second set screw projecting into an annular groove in the housing for limiting axial movement of the shell. The set screws require a special installation/removal tool.

Abstract: A universal mounting structure for supporting a fog generator discharge head used in applying insecticides. The universal mounting structure includes a first conduit means constructed of a pair of right angularly disposed conduit portions for defining an entrance passageway and a transfer passageway, with one of the conduit portions including means for connecting the conduit means to fog generator air blower means. The universal mounting structure includes a second conduit means constructed of a pair of right angularly disposed conduit portions for defining a transfer passageway and an exit passageway. The second conduit means is connected to the first conduit means so that adjacent conduit portions are coaxially aligned with each other for angular adjustment about a vertically disposed axis and includes locking means for securing the second conduit means in a selected angularly adjusted position relative to the first conduit means.

Abstract: A marine riser including a uniquely designed three element connection structure and associated connecting and releasing means for the inhibiting of fatigue failure caused by moments and axial loads resulting from relative motion between the fixed ocean bottom and a floating drilling platform or ship, such as a semisubmersible rig. The system includes a preloaded connection including a female member and a male member coaxially aligned and held in compression by a nut placed in tension. The connection holds riser pipe sections together. The connection is preloaded through a tool to a degree such that when a load equal to the yield strength of the pipe section material is applied to the pipe sections joined by the connector, the compressed faces of the male and female members do not separate from each other. The degree of preload would be sufficient to maintain the contact between the compressed faces under expected working loads of the pipe sections.

Abstract: Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box and bearing against a box shoulder, the pin and box being secured together by coengaging members mounted on the box, and between the pin and box, and forced against a shoulder at the outer portion of the pin over substantially 360.degree. of the shoulder, to correspondingly force the outer end of the pin against the box shoulder, with the contacting pin and box surfaces axially preloaded against each other. The coengaging members can include a plurality of lock dogs mounted in the box and movable radially inwardly against a ring device disposed between the box and pin and engaging the shoulder at the outer portion of the pin, the dogs and pin device having coengaging cam surfaces causing dogs to exert an axial thrust on the ring device which is transmitted from the ring device to the pin shoulder.

Abstract: A connector for use between two riser pipes has a pin fitting at the end of one pipe. An end sleeve on the pin fitting has a cylindrical exterior surface and a first peripheral flange with upper and lower normal surfaces. A box fitting is at the end of the other pipe and has an end box with a cylindrical inner surface engaging the cylindrical exterior surface of the pin fitting. A second peripheral flange on the box fitting has upper and lower normal surfaces and is adapted to abut the first flange. An annular nut is rotatable about the flanges and has interior threads engageable with exterior threads on a collar rotatable around the box fitting and abutting the second flange. An inturned, interrupted nut flange on the nut overlies the first flange, which is also interrupted. The nut flange and the first flange can be relatively rotated to pass each other axially or to prevent such axial movement.

Abstract: A fire hydrant either of the "wet" barrel type or the "dry" barrel type having an improved hydrant nozzle construction. The barrel of the fire hydrant is provided with an internally threaded boss for receiving a replaceable externally threaded nozzle. Means for locking the nozzle to the boss of the barrel is provided so that the nozzle may not be removed by unauthorized personnel. Sealing means are provided between the nozzle and the boss of the barrel which can not lose its effectiveness due to cold flow and thus will not reduce the gripping effect of the nozzle to the barrel when the nozzle has been threaded therein with an initial torque.

Abstract: A mounting particularly for attaching a tubular nozzle shroud member of a gas turbine in co-axial registration with an aperture in a supporting wall comprising a spigot at the end of the tubular member to be fitted into the aperture, the spigot being of complementary shape to the aperture and having radially outwardly extending lugs spaced apart around its periphery, and the wall having a corresponding number of notches spaced apart around the periphery of the aperture, the lugs being aligned with the notches and inserted through the latter by axial movement of the tubular member and retained, in the manner of a bayonet-type of coupling, by the portions of the wall between the notches when the tubular member has been partly turned about its longitudinal axis, the tubular member also having a flange spaced axially from the lugs and sealingly engaged with the wall when the lugs are located behind said wall portions, to hold the tubular member from axial movement with respect to the wall, the wall and the flange