Abstract: A coupling apparatus provides quick-connect coupling between a fluid source such as a condiment source and a pump. In specific embodiments, the coupling apparatus comprises a tube, and a fluid source connector coupled to an end of the tube and configured to releasably connect to the fluid source. A quick-connect coupler is coupled to another end of the tube and is configured to releasably connect to the pump inlet fitting of the pump. The quick-connect coupler includes a spring-loaded member being biased by a spring toward a locked position to lock the quick-connect coupler to the pump inlet fitting and being movable to a release position to release the quick-connect coupler from the pump inlet fitting. The quick-connect feature conveniently allows the pump to be easily and quickly disconnected from the dispensing system for cleaning or replacement.

Abstract: A joint system for water well conduit assemblies includes a plurality of similar modular conduits. Each conduit comprises a cylindrical end portion at a first end and a socket at an opposite, second end configured to receive the cylindrical end portion. Matching configurations of apertures are defined in the cylindrical end portion and the socket. The cylindrical end portion of a first conduit is inserted into the socket of a second conduit. An inwardly deformable pin is inserted through each through hole defined by a pair of aligned apertures. The pin includes slots and a central axial hole with a serrated upper portion and an annular groove. A plug with a serrated head and an annular bump is disposed in the central axial hole to lock the pin in place and thus secure the conduits together. A seal is formed between the cylindrical end portion and the socket.

Abstract: A pipe and pipe coupling assembly (10) including a pipe (20) having a first end (72) and a pipe (22) having a second end (74). The first end (72) includes a threaded portion (60) and a keyway (32), and is adapted to slidably engage the second end (74). The second end (74) includes a key portion (36) that is adapted to engage the keyway (32), thereby impeding the rotation of the pipe (20) relative to the pipe (22). The pipe and pipe coupling assembly (10) further includes a coupling member (34) adaptable to be rotatably attached to the second end (74). The coupling member (34) further includes a threaded portion (58) operable to engage the threaded portion (60) of the first end (72), thereby removably coupling the pipe (20) to the pipe (22) in a keyed, end to end relationship.

Abstract: The present invention relates to a high-pressure pipe element consisting of hooped tube sections for making lines referred to as kill lines and choke lines that equip oil drilling installations, notably offshore. The element consists of several hooped tube sections (51 to 56) connected by means of connecting parts (3).

Abstract: A locked connection comprises a circular groove around a pin or inside member. A box or outside member provides a series of passages tangential to the groove in a made up position of the box and pin. One or more locking pins extend through the passages. When the box and pin tend to move relative to each other, the locking pin is placed in shear in a path extending along the long dimension of the pin whereby a large shear area is provided by a small diameter locking pin.

Abstract: An apparatus, system, and method of axially joining a first and second member having externally threaded ends without having to turn either member. The set of external threads of the first and second members are wound in a predetermined direction and are located on a first member end and a second member end respectively. In one aspect, the invention is three-piece apparatus comprising a coupling, a reverse, and an adapter.

Abstract: A universal pipe joint for attaching two round pipes together accommodating misalignment using a female adapter fitting (30) engaging a male adapter fitting (44), each having a radial interior and exterior diameter (38) and (50) with a compression nut (52) urging them together. The female fitting has external threads (40) with a number of locking grooves (42) at right angles to the threads, and a compression nut with a spring-loaded ball (54) therein that clicks into the grooves while the nut is being tightened. When the nut is fully tightened, the radial diameters are compressed and the ball (62) is locked into the groove with a set screw (66). Thus securing the connection and eliminating loosening by over the road operation of a vehicle to which the device is attached. A second embodiment replaces the compression nut with a pair of flanges (68) held together by nuts and bolts.

Abstract: A fitting for connecting two components is described. The fitting may be explosion proof for use in hazardous environments. The fitting may swivel allowing fast and easy connection to fixed components, thus minimizing the time required for installation and periodic maintenance, while maintaining the integrity of the explosion proof fitting. In this way, components—such as electrical conduits containing conductors or wires—can be installed and maintained without the use of damming material. Also described is a method of installing an explosion proof fitting for use in hazardous environments.

Abstract: A dog-style connector with a fail-safe mechanism for a marine riser system that connects a box portion and a pin portion of a riser. An actuator housing is affixed to an external surface of the box portion. The actuator housing has an outer bore and a threaded inner bore. An actuator body is threadably received in the inner bore. The actuator body has a hex head on its first end. The actuator body has a threaded fastener bore extending from the first end for receiving a threaded fastener. The actuator body has a second end that has a stem receptacle formed therein. The fastener bore is in communication with the stem receptacle. An actuator head, which includes a flange and a stem, is provided wherein the stem is positioned within the stem receptacle for sliding engagement therewith. Threads formed on the threaded fastener engage a threaded fastener receptacle formed in the stem of the actuator head.

Abstract: Joint restraint assembly for connecting pipes which includes a substantially annular body, at least one segment, and at least one bolt. The annular body is configured to fit around a pipe and has at least one pocket formed adjacent the pipe and at least one bore disposed through the body into the pocket. The segment is configured to fit in the pocket. The bolt extends through the bore engaging the segment abutting same against the pipe. In addition, the bolt has a stop ring formed thereon limiting the length the bolt can extend through the bore to a defined length sufficient for retaining the annular body around the pipe.

Abstract: The invention concerns a telescopic tube (10), in particular for sprinkler systems, comprising an outer tube (12) and an inner tube (14) which is movable relative to the latter and has an inner end piece (36) which extends inside the outer tube and has an outer diameter which is larger than the inner tube in their adjoining regions. The telescopic tube (10) further comprises a securing element (26) which surrounds the inner tube and is provided for the outer tube, the outer end (22) of the latter extending in said securing element (26). According to the invention, in order to provide a precise connection between the inner and outer tubes using precision screw machine parts in particular, the outer end (22) of the outer tube is widened and extends inside an annular mounting (24) of the securing element which in turn comprises an outer edge (34) which extends externally along the outer tube and is deformed in the direction of the outer end of the outer tube when the latter has been fitted in the mounting.

Abstract: A connector for interconnecting a pair of adjacent sections of an expandable tubing string includes a plastically expandable sleeve that is arranged co-axially around or inside the ends of the interconnected tubing sections and a series of circumferentially spaced mechanical fasteners, such as screws or rivets, for fastening the sleeve to each of the ends.

Abstract: Downcommer coupling apparatus and methods for replacing a core spray line downcommer pipe coupled to a shroud T-box are described. In one embodiment, the coupling apparatus includes a wedge flange, a wedge, a wedge housing, a pipe seal, a cylindrical pipe, an elbow, a lower flange, and a shroud seal. The downcommer pipe is connected to the coupling apparatus by extending the pipe through the wedge flange, the wedge, and the wedge housing. The wedge has a plurality of flexible thinned segments that extend into the wedge housing to secure the downcommer pipe to the wedge housing. Wedge flange bolts extend through the wedge flange, the wedge, and the wedge housing to rigidly secure the downcommer pipe to the coupling apparatus. Dowel bolts extend through the wedge housing and the downcommer pipe to provide vertical and torsional load transfer from the downcommer pipe to the coupling apparatus. The lower flange is configured to receive the shroud T-box.

Abstract: A device on a conduit end for joining the conduit (1) to a coupling (4) or some other receiver of the end of the conduit, which is made of aluminium or an aluminium alloy. Two external annular beads (2, 2′) are pressed out from the conduit wall on the conduit end and accommodate between themselves an O ring (3). In an arrangement for joining, the receiver (4) has a conical inlet and means, which together with the rear annular bead (2) form engaging means for a tightening means.

Abstract: A device and system for securing adjacent segments of duct work formed from fibrous glass duct board insulation and the like is disclosed. The device comprises a corner member having two legs disposed at approximately right angles, each of said legs having oppositely facing and substantially parallel adjacent channels disposed therein to accommodate portions of opposed edges of adjacent segments of duct work. The system includes a plurality of corner members each having two legs disposed at approximately right angles, said legs having substantially parallel and oppositely facing adjacent channels disposed therein to accommodate at least a portion of the opposed edges of adjacent segments of duct work.

Abstract: A quick connector fitting assembly is provided which includes a fitting which releasably connects to a well casing for providing an interface for the attachment of various types of well related equipment. The quick connector fitting connects using fasteners to a lip or groove formed on the casing. The fasteners can easily connect or disconnect from the groove or lip facilitating the quick connection and disconnection of the fitting from the casing.

Abstract: A joint restraint (10) for securing a first pipe (12) to a second pipe. The joint restraint (10) includes an annular body (14) and a plurality of wedge housings (18) extending from the annular body (14) and characterized by open rear faces (38) to allow coreless casting. A bolt (32) is disposed within a hole (30) in each wedge housing (18) and a wedge (40) is disposed within each wedge housing (18). Each wedge (40) has a bolt-actuated tooth (52), a larger pressure-actuated tooth (54), a top surface (44) having a groove (48) adapted to slidably receive a bolt actuator (32), and a bottom surface (42) that is partially tapered to act as a bearing (76) limiting the extent of bolt-driven actuation.

Abstract: A chuck for rotary tools with a cylindrical chucking shank encloses such shank with a basic body. A radial through-hole in basic body serves to receive a clamping screw which applies pressure to a clamping member which is seated inside a through-hole between the clamping screw and chucking shank. A clamping member is provided with a radial projection and the through-hole with a cross-sectional narrowing along its inner end. In between the radial projection and the narrowing is an elastically compressible spring element which, due to its return force, lifts the clamping element away from the chucking shank and pushes it back into the through-hole when it is not under tension from the clamping screw.

Abstract: Electrical conduit coupling devices are disclosed that include a casing formed of a steel tubing that, in turn, includes a rear portion and a front portion, an elastomeric "O" ring secured at the front portion by a retainer and an end cap. The electrical conduit coupling devices further include a clamp that is arcuate in shape, and in one embodiment, has ends separated from each other to form a gap therebetween which is diametrically located opposite a cut-out in the central region of the clamp. The cut-out cooperates with the separated ends to allow the clamp to clamp around a conduit that is inserted into the electrical conduit coupling device. The electrical conduit coupling devices provide for not only rigid connection to a conduit, but also a waterseal or concrete seal connection therebetween.

Abstract: A passage communication member is fitted in a first passage in a structural member, and has a head which is mounted in a slot in another structural member. The first passage in the structural member and a passage in the other structural member are held in communication with each other through a through hole that is defined in the passage communication member. Alternatively, a first engaging member is inserted in a recess defined in a structural member, and a second engaging member is retained in a slot in another structural member. When the first and second engaging members are coupled to each other by a fastening member, the structural members are firmly joined and fixed to each other.

Abstract: A swivel fitting is provided for use on the riser line associated with the underground storage tank of gasoline service stations. The swivel fitting includes an adapter sleeve that attaches to the riser line by a standard threaded connection. A swivel sleeve includes a fill adapter fitting for use in removably attaching a product transfer hose as is typically used to transfer product to the underground storage tank from a tanker truck. The swivel sleeve is sleeved to the adapter sleeve to permit rotation of the fill adapter fitting with respect to the riser line. A pair of bearing surfaces and a bearing between the swivel sleeve and the adapter sleeve allow smooth rotation of the swivel sleeve with respect to the adapter sleeve.

Abstract: A fuel control system, parts therefor, and methods of making are provided. The fuel control system includes a fuel control valve unit (FCU) and a fuel conduit having an end secured in a fuel outlet opening in a housing of the fuel control valve unit. The end of the conduit is disposed in a certain desired axial position in the fuel outlet opening relative to the housing, the housing has a movable part. In a first position of the movable part, the end of the conduit can be axially moved from a position outside the housing to the certain desired axial position. In a second position, the movable part cooperates with a securing device on the end of the conduit to secure the end in the certain desired axial position thereof.

Abstract: Live swivel coupling has a hollow first housing and a hollow second housing, each of which is open on opposing ends in a main axial direction. The first has a generally radially symmetrical inner surface and an indentation in the inner surface, and the second has a generally radially symmetrical outer surface and an indentation in the outer surface. The indentations are for retaining a rotatable bearing set of one or more rotatable bearings when the first and second housings are coupled. The rotatable bearing set also serves as a retaining device to hold the first and second couplings together.

Abstract: A pipe fitting adapted to be installed in an aperture in a wall of a fluid container, comprises inner and outer co-axial sleeve members interconnected for relative axial movement and a split, helically wound, washer. The inner sleeve member has an end portion insertable through the aperture, and the outer sleeve member has an annular bearing surface adjacent to the end portion adapted to overlie a first one of two opposed surfaces of the wall around the periphery of the aperture. The split washer is retained to and extends around the end portion opposite the bearing surface, and is of larger outer diameter than the aperture but is insertable therethrough by winding so as to overlie the second of the opposed surfaces of the wall.

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

Abstract: A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston and oversleeve, thus allowing for speed in repositioning, assembly or disassembly while also providing a secure positive positioning lock between the hydraulic cylinder, piston and oversleeve while the quick-release cam lock is engaged.

Abstract: A joint for a fluid transport pipe is provided for use in e.g. connecting and communicating a fluid piping device such as a branch pipe or a sluice valve to a through bore defined in a fluid transport pipe. The joint includes a joint body, to be connected to a fluid transport pipe. This joint body has a cylindrical connecting portion projecting therefrom. The cylindrical connecting portion includes a fixed cylindrical member formed integrally with the joint body and a movable cylindrical member fluid-tightly connectable to the fixed cylindrical member to be pivotable three-dimensionally relative thereto.

Abstract: A coupling apparatus and method for joining together lengths of electrical conduit in a conduit system. The coupling apparatus includes a resealable port that permits lubricant to be introduced into the coupling apparatus to facilitate wire pulling through a conduit system and to reduce strain on the insulation material of the wire. The coupling apparatus is a generally T-shaped tubular structure and includes a pair of axially-aligned conduit receiving openings which define an inlet and an outlet, respectively. The inlet and outlet openings are spaced a distance apart from one another by a central chamber. The central chamber has an inner tubular diameter substantially equal to the inner tubular diameter of the conduit to be joined in order to provide a smooth transition for wire being pulled through the coupling apparatus. The resealable lubrication port is defined by a vertically oriented tubular leg portion and removable threaded plug which are joined to a middle section of the central chamber.

Abstract: A pressure relief valve that is rotatable relative to the pressure relief system to allow flexibility in the connection of an outlet aperture in the pressure relief valve with a vent pipe in the building. A circumferential channel being formed on a conduit comprising a portion of the valve to receive a plurality of fasteners thereon for attaching the valve body to the conduit. Further, a tension relief bar having a pair of apertures is utilized to manually control the movement of a valve member relative to a valve seat within the valve body. One of the apertures being positioned for receiving a locking pin therein to hold the valve member apart from the valve seat. The capability to rotate and separate the valve body from the conduit allows for flexibility in servicing and connecting the valve body to the conduit.

Abstract: A separation preventive pipe joint is provided. A locking ring provided on an inner periphery of a socket is engaged with a projection formed on an outer periphery of an end portion of a spigot to prevent the spigot from being separated from the socket. When the spigot is to move deeper in the socket, a sleeve provided inside the socket abuts the end of the spigot to prevent the movement of the spigot. The movement of the spigot may otherwise be prevented by locating a deeper end face of the socket adjacent to the projection of the spigot. The projection fills up a clearance between the outer periphery of the spigot and the inner periphery of an open end portion of the socket, thereby preventing the spigot and the socket from bending relative to each other. The clearance may otherwise be filled up by means of a ring disposed on the inner periphery of the socket and bolts to be screwed into the socket from the outer periphery thereof to press the ring against the outer periphery of the spigot.

Abstract: A toolholder assembly for accurately securing a shank of a tool in a socket along a desired alignment is provided. The toolholder assembly includes an inner collar having an annular wall whose inner surface defines the socket recess, and whose outer surface defines a collar periphery, an outer clamping assembly surrounding the periphery of the inner collar that includes a set screw for applying a compressive force to a portion of the periphery of the inner collar, and a pin-like tool retainer that freely extends through a radially-disposed opening in the inner collar wall. The tool retainer is disposed opposite from the set screw of the outer clamping assembly, and directs the compressive force applied by the set screw across the socket recess to retain a tool shank therein while diverting the compressive force away from the opposing portion of the inner collar wall to prevent hoop distortion from occurring therein.

Abstract: The combustion chamber of the thruster comprises a tubular structure of composite material, at least one end wall applied to an end of the tubular structure, and a sealed connection device between the tubular structure and the end wall. The connection device includes mechanical connection means comprising smooth-walled studs engaged through the tubular structure and the end wall so as to provide connection in an axial direction and in its circumferential direction, together with stud retaining means operating in a radial direction. A sealing gasket is interposed between the end wall and an annular intermediate part forming a gasket bearing member secured to the end wall in the radial direction in such a manner as to keep the gasket compressed in the event of the end wall deforming.

Abstract: A wedge assembly restraint, featuring clip stops and a flexible, resilient retainer clip, for restraining a wedge assembly in the clamping block of a pipe junction holder.

Abstract: An in-tank fuel filter for a lawnmower including a tank inlet adapter having a lower gasket portion and an upper inlet portion, the gasket portion further having a generally tubular configuration with an outer surface, an inner surface, a top edge and a bottom edge interconnecting the surfaces thereof, the inlet portion further having a generally tubular configuration positioned in axial alignment with the gasket portion, an inner surface, an outer surface, a top edge and a bottom edge interconnecting the surfaces thereof and with the bottom edge further coupled to the top edge of the gasket portion; and a metal screen having a bottom wall and a tubular peripheral side wall portion extended upwards from the bottom wall to define a hollow interior, a central opening to the interior, and an upper edge bounding the central opening and with the upper edge coupled to the gasket portion to thereby create an annular holding space for receiving a nozzle of a gas tank.

Abstract: A basic connector body (13) which electrically connects and mechanically secures a ground wire (1) to a grounding member (14), e.g. pipe or electrical conduit, which body is made of a one piece brass alloy casting. The generally cylindrical, basic connector body has a smaller diameter, wire section and a larger diameter, pipe section, the size of the latter allowing the body to be slipped over the pipe end. In contrast, the smaller, wire section prevents the pipe from passing through the connector body due to the presence of a ridge (7). When the connector body is slipped over the end of the grounding pipe until the end of the pipe bears against the ridge, a first set screw (8) is screwed down until it drives itself down against the outer, exterior surface of the pipe, electrically connecting and mechanically securing the connector body to the pipe.

Abstract: A recreational vehicle sewer hose containment assembly comprising a plurality of rigid linear tubes telescopically mated to define a housing, with the housing adapted for receiving a sewer hose of a recreational vehicle therein and with the housing contractible in a stowed configuration and extendable in an operable configuration; an adjustment mechanism coupled to the housing for fixedly setting the telescopic extension and alignment of the tubes thereof; and a coupling mechanism coupleable to the housing and coupleable with a recipient surface therebelow for placing the housing in a stationary operable configuration.

Abstract: A pipe coupling arrangement for coupling an end of a pipe section includes a coupling body having its open end, into which the end of the pipe section is inserted. An outer ring and a radially compressed inner ring are disposed in the open end of the coupling body. Inclined peripheries are respectively defined in the inner periphery of the outer ring and the outer periphery of the inner ring. These inclined peripheries are inclined so as to become smaller in diameter as they advances towards the open end of the coupling body. The inclined periphery of the outer ring and that of the inner ring are engaged by each other. A pressing means for pressing an outer periphery of the outer ring is provided such that the inner ring is tightly pressed against an outer periphery of the pipe section via the outer ring. A space is defined by the inclined surface of the outer ring and the outer periphery of the pipe section, into which the inner ring is inserted.

Abstract: A stabilizer to be mounted on a collar of a well drilling string including a circumferentially continuous tubular body having several outwardly extending blades thereon, the tubular body having an inner dimension such that it can be slid onto a drill collar, and radially energized components which positively fix the stabilizer on the collar including dies mounted in the blades, and having serrations on their inner faces, and drive elements to cause the serrations to bite into the collar and thereby fix the stabilizer thereon in a selected longitudinal and rotational position.

Abstract: A pipe coupling arrangement is directed to a coupling body fitted on at least one of a pair of pipes to connect the pipes with one another. The coupling arrangement includes a protruded portion formed on the outer periphery of each of the pipes, an annular sleeve having an inner wall therein being engageable with the protruded portion, the sleeve being provided in a space between the outer periphery of the pipe and the inner periphery of the coupling body, a threaded hole inwardly and slantingly formed in the coupling body closer to one end thereof for arresting the slipping off of the sleeve from the coupling body, a cut-away face formed on the outer periphery of the sleeve, the cut-away face having a tilt angle perpendicular to that of the threaded hole, and a fastening member screwed into the threaded hole such that the tip portion of the fastening member can abut against the cut-away face.

Abstract: A blast joint for use with a snubbing unit includes a casing around the protective rings and means for sealing around the bottom of the rings between the tubing and the casing.

Abstract: A stab joint coupling, for joining corrugated pipes, has a male connector and a female connector both having means for attachment to a first and second piece of pipe by engaging the corrugation of the pipe. A circumferential elastomeric sealing means is positioned between the joined coupling connectors to effect a substantial liquid seal for the joint. The coupling permits two pieces of corrugated pipe to be joined relatively inexpensively and quickly by workers in the field.

Abstract: A connector structure is provided for securely connecting a concentric fuel line having a plurality of tubes to a manifold having corresponding fluid passages in communication with the plurality of tubes. The manifold includes coupling unions having axial bores for receiving one end of each of the plurality of tubes. The connector structure includes mounting holes extending transversely to the axial bores. Each of the mounting holes receives a screw so that the outer edge of the screw is tangentially aligned with a corresponding circumferential portion of the outer wall of each one of the plurality of tubes to mechanically and positively secure the ends thereof in the respective bores.

Abstract: A conduit coupling includes a plurality of semi-cylindrical shells hingedly mounted relative to one another to receive first and second conduits therewithin. Externally threaded clamp rods are radially directed through the first shell to secure the first and second conduits within the coupling structure. The first and second shells include respective flanges at a second edge of each shell that are arranged for confronting and continguous relationship when in a closed orientation relative to one another, with a flange fastener directed through the first shell flange threadedly received within the second shell flange to clamp the first and second shells relative to one another.

Abstract: A coupling ring for circular ducts is formed of a single piece of sheet metal and has oppositely extending flanges connected together by an annular channel-shaped rib which cooperatively with the flanges defines oppositely opening grooves containing sealant. The relative dimensions of the grooves is such that a hydraulic lock is avoided at the time the coupling ring is telescoped onto the ducts. Proper sealing can be visually determined by inspection.

Abstract: A diverter mechanism for a bedpan rinsing apparatus includes a diverter valve body and a nozzle pivot mounted within the valve body. A bedpan rinsing arm assembly is positioned within a passage in the nozzle pivot. The improvement is a seal between the nozzle pivot and arm assembly in which the device that locks the arm assembly to the nozzle pivot moves the arm assembly toward the seal as the locking device moves to a locking position.

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 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 the 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 couplin

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: 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 pipe is especially fabricated for use in conjunction with locking pin type threadless couplings. The pipe has a thin wall configuration achieved by fabricating it from high tensile steel produced by cold working, or reducing, low carbon steel.