Abstract: A sealing device for the sealed connection of two pipes placed end to end includes an upper component and a lower component. The upper component includes a frustoconical rib extending outward from a cylindrical end part and diverging upward into a first wall forming a return, an elastically deformable external skirt formed from a second wall connected to the frustoconical rib through the return, a circular groove defined between the rib and the skirt and formed by the first and second walls, and a retainer provided in a lower edge of the external skirt. The lower component is matable with the upper component and includes a third wall forming a frustoconical socket that flares upward, a fourth wall forming a frustoconical external skirt diverging downward, and a circular rib formed by merger of the third and fourth walls.

Abstract: A fluid coupling comprising releasably interconnectable male and female coupling members for interconnecting fluid flow lines. The male coupling member has an inlet and an outlet connectable to a fluid flow line, whilst the female coupling member has an inlet for receiving the inlet of the male coupling member, and an outlet connectable to another fluid flow line. A locking mechanism exerts a retaining influence on the male coupling member, when received within the female coupling member, to connect the coupling members together. A lock release mechanism is operable to remove the retaining influence of the locking mechanism and release the coupling members. The lock release mechanism has a release member manually movable to operate the lock release mechanism.

Abstract: A rotary joint for establishing fluid tight communication between a rotating drum and a heating or cooling medium such as steam or water wherein the joint includes a normally stationary body connected to supply or discharge conduits, and the body includes a rotating nipple coaxially threaded into the end of the drum. For ease of installation, maintenance and removal, the normally relatively rotatable body and nipple are selectively locked together to prevent relative rotation permitting rotation of the body to thread or unthread the nipple relative to the drum journal.

Abstract: The invention is directed to an improved disconnect tool (15). In the preferred embodiment, the disconnect tool is comprised of a first member (16) and a second member (18) connected by a pivot pin (19). The tool includes an engagement means (23) and an expansion means (22) to facilitate the engagement and expansion of a retaining clip so as to permit insertion and removal of a fluid line (39) from a fluid coupling assembly (41). In the preferred embodiment, the expansion means takes the form of a castellated tube portion with a plurality of fingers (20) defining a plurality of grooves (21) therebetween. The fingers are used expand the retaining clip radially and outwardly so as to permit the fluid line to be removed from the fluid coupling assembly. In addition, the present invention is also directed to a method for removing a fluid line from a fluid coupling assembly through the use of a disconnect tool.

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 coupling, which has a longitudinal bore for fluids to pass through, for connecting a tube to a pair of fittings that can be tightened and loosened with a wrenching tool, including a nipple positioned at one end of the coupling; a first threaded mating portion positioned at an opposite end of the coupling; a second threaded mating portion positioned adjacent the nipple; a wrenching portion disposed on the coupling having a front end and a rear end and extending above the first threaded mating portion with the wrenching portion rear end including a shoulder extending below the wrenching portion front end; and, whereby the first threaded mating portion engages one of a pair of fittings and the second mating portion engages the other of a pair of fittings.

Abstract: Valve actuating hand tools for inflating and deflating an air bag having a valve with a valve head and movable valve stem is disclosed. Each hand tool includes a first elongated member having a gripping portion at one end thereof and a valve head engaging member at an opposite end thereof. A second elongated member is pivotally coupled to the first elongated member with the second elongated member including a gripping portion at a first end thereof and a valve stem engaging member at an opposite end thereof. A spring is connected to the first and second elongated members to bias the valve head engaging member toward the valve stem engaging member. With the hand tool in an operative position, the valve head engaging member engages the valve head with the valve stem engaging member engaging the valve stem to position the valve in an open position.

Abstract: A device configured to form a sleeve having a proximal end, a distal end and an elongate body portion having an axial lumen therebetween. The body portion is dimensioned to accommodate a length of hose within its axial lumen. The proximal end of the device has a wrench portion adapted to matingly engage at least a portion of the outer surface of a female threaded coupling fixture mounted on a terminal end of the hose. The distal end of the device may or may not be flared outwardly to prevent the hose from kinking when the female coupling fixture mounted on the hose is attached to a supply source such as a water tap. The body portion and distal end of the device is adapted to rotate freely about a length of hose housed therewithin. In one embodiment, the proximal end of the device has a stop operable for preventing the device from sliding away from the female coupling fixture mounted on the hose.

Abstract: A pipe connection is formed between a relatively soft pipe segment and a stiffer socket by inserting a split securing ring in a groove of the socket, then spreading this ring and inserting the pipe segment through the split ring into the pipe segment without contact with the split ring. The mounting body maintaining the spread state of the split ring is then removed to allow the spring ring to engage with its intrinsic elastic force along the periphery of the pipe segment. Even if the inner surface of the split ring is provided with a corundum layer or like friction-enhancing structure there will be no damage to the outer periphery of the pipe which might interfere with sealing.

Abstract: A tool for clipping together a pair of flange connectors includes a handle and a clipping member. The clipping member is shaped and dimensioned to force a U-shaped clip over the flange connectors to secure the connectors together.

Abstract: A subsea wellhead tieback connector operatively used to connect to a marine riser pipe or a well conductor in a manner that that will not unthread or unloosen the joints of the riser pipe being unlocked. The tieback connector operates with a novel internal latching mechanism having a hydraulic piston, an inner body that stretches and deflects in a unique manner resulting in compression spring forces at two locations, an expanding lock ring, a threaded adjustment ring, and a reaction ring. During operation the tieback connector creates an enhanced mechanical advantage to originate a required pre-load force without the necessity of having to generate a large hydraulic force that would otherwise be needed.

Abstract: A coupling for releasably engaging a tubular member has a hollow body, in which the tubular member is received, and a sleeve which is movable axially within the hollow body. The sleeve is provided with an array of spacially separated holes and rotatable gripping members are located in these holes for selectively engaging the outer surface of the tubular member. During insertion of the tubular member into the hollow body, the rotatable gripping members move away from the outer surface of the tubular member. Movement of the tubular member in the opposite direction causes the rotatable gripping members to be cammed into contact with the surface of the tubular member.

Abstract: A pipe joint comprises two tube-end connectors 4, 4 to which the end of a tube 3 is connected, a cylindrical spacer 1 with the tube-end connector 4 fitted to either end, and a pair of metallic housings 6, 6 that each axially covers half the side outer circumference of the spacer 1 and each tube end connector 4, 4.

Abstract: A quick-action coupling, in particular for refrigerant lines, is provided with a sleeve (1) and a nipple (2) which can be pushed thereinto, with a set of seals (5) having at least one seal (6) of elastomeric material. It has furthermore a locking device (10, 11, 15) for the coupled position between sleeve (1) and nipple (2), which locking device has a bead (15) on the nipple (2) projecting in particular radially outwards and a cage (10) mounted in the sleeve (1), with retaining fingers (11) which can be opened out and engage behind the bead. A releasing tool (25) for opening out the retaining fingers (11) of the cage (10) is provided, which tool can be fitted onto the nipple (2) and can be pushed in in the direction of the sleeve (1). There is provided on the outer circumference of the sleeve (1) a radially outwardly projecting border (30). The releasing tool (25) had a radially inwardly directed collar (29), serving as a stop.

Abstract: Pipe coupling system and method in which a tapered wall is formed on one of two tubular pipe members for press-fit engagement with a wall of the second pipe member, and the two pipe members are pressed together in an axial direction to bring the tapered wall and the other wall into direct press-fit engagement with each other. The two pipe members can, for example, be a length of copper water pipe and a copper pipe fitting, and in certain disclosed embodiments, the pipe members are drawn together by a tool having axially movable jaws which engage the pipe members and are driven together in the axial direction by an actuator and linkage which move in a perpendicular direction.

Abstract: A fitting includes a stepped passage having a pair of axially spaced apart shoulders, one of which acts as a stop shoulder preventing a bell shaped end of a tube support from being inserted past the stop shoulder, and the other of which has a trepan formed therein which is deformed radially inwardly to wrap around the bell shaped end portion. The trepan has a generally triangular shape cross section including an axial inner wall in alignment with the outer diameter of the stop shoulder and a tapered outer wall intersecting the inner wall at an acute angle. In one form of the invention, the entire outer edge of the trepan is deformed radially inwardly to form an inturned lip that wraps around the bell shaped end portion of the tube support. In another form of the invention, a plurality of circumferentially spaced segments of the outer edge of the trepan are deformed radially inwardly to form individual fingers that wrap around the bell shaped end portion of the tube support.

Abstract: A pipe joint for connecting water supply pipe together and which utilizes compression seals between the pipe and the joint, and is comprised of a holding housing having a band body that surround a seal ring and a holding ring. A locking bolt is threadably tightened onto the holding housing.The seal ring is embedded and sealed within outside surface of both ends of the separated pipes after the locking bolt is threadably tightened.The holding ring is positioned to engage and become fully engaged within the groove at each of outside of the separated pipes, and hold the separation pipes against being easily separated after the locking bolt is threadably tight-end onto the holding housing.The ring spring having a turned up portion eliminate swell out of the holding ring from the holding housing, and circumference rotation by itself.

Abstract: A tube coupling which allows a fluid tube to be easily connected to and disconnected therefrom includes a cylindrical coupling body, a chuck disposed in the coupling body and having engaging portions on its distal end for gripping a fluid tube inserted in the coupling body, a guide member for holding the chuck therein for sliding movement in a predetermined axial stroke, the guide member having cylindrical slanted inner surfaces in substantial alignment with a proximal portion of the engaging portions of the chuck, a release bushing disposed in the coupling body for insertion between the fluid tube inserted in the coupling body and the chuck for spreading the engaging portion out of gripping engagement with the fluid tube, a gasket disposed in the coupling body for sealing a distal end of the fluid tube with respect to an inner wall of the coupling body. The chuck has bulging portions projecting radially outwardly from the proximal portions of the engaging portions.

Abstract: A seal for around a pipe penetrating through a wall. A rubbery reducer boot includes a flexible material-reservoir defined by a material curved-fold allowing a pipe-engaging tubular portion of the boot to be moved outward and inward from a relaxed position, and to be angled in extension relative to a stationary back portion of the boot. An end of the pipe-engaging tubular portion includes areas allowing the application of a hose clamp about the tubular portion to compress against the exterior of a secondary containment pipe adjacent the terminal end of the pipe, and the application of another hose clamp outward beyond the terminal end of the secondary pipe and clamping of the boot about a further-extending primary pipe. The back end of the boot near the material-reservoir includes an annular groove for receiving an annular first end of a tubular fitting assembly. A third and larger hose clamp is positioned about the back of the boot to compress and secure the boot sealed about the tubular fitting assembly.

Abstract: A ratchet type closet flange for replacing broken cast iron closet flanges in old buildings or in new construction in place of conventional cast iron closet flanges. The patented invention comprising a flange body, a cup, a rubber seal, and a means for applying pressure. After removing the broken closet flange, the ratchet type closet flange is inserted into the existing pipe. A compression seal is formed between the flange body and the inside of the pipe by applying pressure to the flange body and the cup, forcing a compression seal between the rubber seal and the pipe. The ratchet type closet flange may slide up and down inside the pipe to achieve the desired height.

Abstract: A top mounted flush valve is installed from inside a flush tank and does not require access to the opposite tank wall. A valve body includes an annular chamber receiving a radially enlarged head portion of a flexible resilient seal member. A draw ring is fixed to the remote end of a barrel portion of the seal member. A draw collar has a flange bearing against the body and a cylindrical portion threaded to the draw ring. Rotation of the draw collar outwardly collapses the seal barrel portion, and a seal bead on the seal member head is forced against the inner tank surface. A wall of the body isolates the draw collar from the seal barrel, and the enlarged head portion is wedged into the annular chamber to prevent rotation of the seal member.

Abstract: A coupling assembly includes a first member and a second member. The first member has an exterior surface with a first projection extending radially outwardly. The second member has a cavity with an interior surface to receive the first projection on the first member and a second projection extending radially inwardly from the interior surface. The coupling assembly further includes a retaining ring disposed about the first member between the first projection and the second projection to retain the first member and second member together.

Abstract: An assembly for joining a pipe to a pipe fitting includes an anti-leak gasket which is mounted around the pipe and which has a tapered portion with an outer periphery complimentary to and thus fittingly received in a tapered inner wall section of the pipe fitting. An inner threaded ring is mounted around the pipe at a position above the anti-leak gasket and includes threads defined in an outer periphery thereof for threaded engagement with threads defined in the pipe fitting, The inner threaded ring further includes an inclined inner peripheral wall. A C-shaped ring is mounted between the inclined inner peripheral wall of the inner threaded ring and the outer periphery of the pipe. The C-shaped ring includes a plurality of first protrusions projecting from an inner periphery thereof and received in an annular groove of the pipe and a plurality of second protrusions projecting from an outer periphery thereof.

Abstract: A spring-lock release tool provided with double-action arms for both uncoupling a pair of tubes and separating them from each other. A first portion of the arms engageable with a floating collar member for uncoupling the tubes, and a second portion of the arms engageable with rods for separating the tubes.

Abstract: A method for using a positioning apparatus having a cylindrical shaft including a retaining shaft, an expansion shaft, and a frustoconical transition shaft extending therebetween. The expansion shaft has a recess sized to receive a flange radially extending outward on an elongated member. The shaft is configured to be received within a housing having a passageway extending therethrough. The passageway is defined by an interior surface which includes a cylindrical first surface positioned at the top of the housing. The first surface has an inner diameter equal to the outer diameter of the split ring. The interior surface also includes a frustoconical constriction surface positioned at the bottom end of the housing. The housing raises and lowers relative to the shaft for positioning the split ring onto the elongated body under the force of a weight.

Abstract: A new fluid coupling assembly includes first and second split connection members positioned over a coupling member or gland of a fluid system. A body member is threadedly received over one end of the split connection members to define a split female nut member. A second threaded region of the body member has a different pitch and hand to facilitate make-up of the coupling assembly and assure that the components are urged together as the fluid components are brought into sealing engagement. A retaining collar is received over the split connection members to define a split male nut member.

Abstract: An assembly includes a quick connect cartridge which is inserted into a port of a valve or manifold in a pneumatic system for coupling external fluid lines of the system to the valve or manifold. The components of the quick connect cartridge and the O-ring seal are mounted on the tubular shank of a plug. The plug is used as a shipping pin and is also used to install the components into a port of the valve or manifold. Normally, the plug is withdrawn from the port after the components are inserted in the port. If it is desired to keep the port closed after initial installation of the components, the plug may be retained in the port until it is time to connect the port. If it is desired to leave the port permanently closed, the plug remains in place. The plug can be an open plug allowing testing of the valve in which case a dust plug is provided for shipping puposes.

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: An improved rotary joint construction is produced by eliminating the external drive mechanism used for installing and removing such joints. An internal drive mechanism is provided within the bearing area of the stem which does not alter rated flow volume and which does not add to the length of the stem. The internal drive mechanism comprises a socket in the end of the stem which allows the joint to be installed or removed without using special tools. A more compact shorter joint can be produced without reducing the distance between the seals and without reduced rated flow volume and without reducing the contact area of the between the stem and barrel. Alternately, a joint with substantially increased bearing contact area and a longer barrel can be produced without increasing the stem installation clearance height and without reducing the interseal spacing flow passage geometry and subsequent rated flow volume.

Abstract: A tube coupling assembly includes first and second generally cylindrical coupling components each terminating in a radially outwardly extending flange surrounding a sealing end face. The coupling components are positioned in axial alignment and an improved nut assembly is provided for selectively driving the sealing end faces toward one another. The nut assembly comprises a sleeve-like main body positioned in surrounding relationship to the first and second coupling components. A nut member is threadedly connected with a first end of the main body and engages with the radially outwardly extending flange on the first coupling component on the side opposite its sealing face. A split-ring connector comprising cooperating half-ring members is positioned in surrounding relationship to the second end of the main body and releasably connected thereto.

Abstract: A connecting joint for connection to a plastic tube comprising: a main body having proximal and distal ends with a flow passage and chamber between the ends in communication with each other. An engaging wall extends inwardly at the distal end defining a small diameter entry into the chamber, a support provided with a guard wall and resilient arms extending from the guard wall with projection walls on the terminal ends of the resilient arms having outwardly extending inclined surfaces and inwardly extending pawl walls is located in the chamber and a collar is secured in the chamber by the engaging walls. When the tube is inserted into the chamber, one of the guard wall, an annular friction ring or a seal located in the chamber engages the tube and as the tube is withdrawn the member engaging the tube moves the outwardly extending inclined surfaces into engagement with the collar thereby urging the pawls into engagement with the tube.

Abstract: A fiberglass pipe joint with threaded ends has rough surface areas adjacent to such ends which allow strap wrenches to be used to tighten the threads with a high torque that prevents leakage. The rough areas are formed by partially embedded sand grains which are sprinkled on the resin component prior to curing, or on a wet bonding material after curing.

Abstract: The present electrical conduit coupling includes an electrical conduit coupling 10 and a lubrication fitting 11 thereon. The coupling includes a hollow body 12 including an external surface 13 and an internal surface 14. The internal surface defines a central bore 15 extending between first and second open ends 17, 19 that are adapted to receive conduit ends. A thickness dimension exists through the hollow body between the internal and exterior surfaces 13, 14. The lubrication fitting 11 is provided on the hollow body 12 between the first and second ends 17, 19. The fitting 11 extends at least partially through the thickness dimension to communicate with the central bore 15. The lubrication fitting 11 includes an internal one way valve 31 that permits injection of a lubricant into the central bore 15 but automatically closes to prevent reverse flow of lubricant outwardly through the fitting 11.

Abstract: A coupling assembly includes a female member having a receiving end with an axially extending passageway and inwardly facing groove extending outwardly from said passageway in a position spaced from the receiving end. A split metal locking ring is positioned in the groove. A male member is sized to be received in said receiving end and includes a rib having (i) a ramp tapering in a direction away from the forward end and away from the axis at an angle in the range of 10.degree. to 25.degree., (ii) a cylindrical surface parallel to the axis extending rearwardly from the ramp a distance of at least 0.010 and preferably 0.030 inch and (iii) a shoulder tapering away from the forward end and inwardly toward the axis.

Abstract: When used for connecting a fluid carrying pipe, the pipe joint for a fluid handling device of the present invention can provide a strong force for preventing the fluid carrying pipe from coming out from the pipe joint and can assure excellent sealing properties regardless of variations of the fluid temperature. The present pipe joint is arranged such that no fluid stay portion is formed. A cylindrical joint body is provided at the inner peripheral surface thereof with a receiving port into which a one-end pushing portion of a fluid carrying pipe is inserted, and at the outer peripheral surface thereof with a male screw portion. This joint body is formed integrally with the main body of the fluid handling device. Formed at the receiving port is a sealing portion inclined with respect to the axis thereof. A sealing ring having a sealing portion which comes in contact with the sealing portion of the receiving port, is pressingly inserted into one end of the fluid carrying pipe.

Abstract: An adapter for coupling a pair of pipe elements through an opening formed in a wall includes a flange mounted thereon. The flange is pivotable relative to the adapter, whereby the flange automatically compensates a non-uniform thickness of the opening.

Abstract: This invention relates to a connector of a quick connection allowing tight connection of a rigid tube provided, at some distance from its free end intended to be fitted in the inlet of the connector, with a bead projecting radially with respect to the outer surface of the tube and presenting a substantially radial side opposite said end. The connector presents a first inner housing comprising an O-ring capable of coming into contact with the outer surface of the tube between its free end and its bead and a second inner housing to receive a locking ring elastically deformable in the radial direction. The locking ring is formed by a thin metal band presenting a generally oblong profile, the central region of said ring being constituted by substantially cylindrical portions whose diameter in the free state is at the most equal to the diameter of the tube.

Abstract: A release member for a quick connector engagable with a fitting. The release member includes a body formed of a resilient material and having first and second end portions, with a slot extending longitudinally through the first and second end portions for mounting of the release member over the fitting and to enable axial sliding movement of the release member through an open end of the quick connector into engagement with a retainer mounted within the quick connector to effect release of legs of the retainer from an annular flange on the fitting and disengagement of the connector from the fitting. A radially enlarged flange is formed between the first and second end portions to form a tool engagable surface on the body for forcible sliding movement of the body into the open end of the connector. Alternately, a recess or a projection may be provided on the body to form the tool engagable surface.

Abstract: A locking device for preventing relative rotation of pretorqued compression nuts used in face seal mechanical fittings includes an inner member having a cavity sized to slide onto and non-rotatably enclose the male or first nut of the fitting, an outer member having a first cavity sized to rotatably receive the inner member and a second cavity sized to slide onto and non-rotatably enclose the female or second nut of the fitting, and at least one set screw projecting inwardly through a threaded borehole in the outer member to non-rotatably engage and lock the inner member.

Abstract: An automatic disconnecting device is provided for hoses containing pressurized gas or liquids. The disconnecting device is activated upon user application of excessive lateral tension to the hose resulting in lateral displacement of the automatic disconnecting device resulting in release of the hose coupling release ring which secures the hose to the supply nipple.

Abstract: A method of and rounding devices for inserting an out-of-round pipe spigot into a pipe bell by installing the rounding devices on the open end of the pipe bell. The rounding devices have cam surfaces for engaging the end of the out-of-round spigot and have sufficient strength and stiffness to deform the out-of-round into a substantially circular cross sectional configuration upon application of insertion force between the bell and spigot. The rounding devices may be removed and reused after the bell and spigot joint is assembled.

Abstract: A push-fit connector for joining two fluid lines (1, 4), one of which is provided with a retaining rib (2), has a sleeve (5) with radial apertures (12, 13). A latching device (6) which can be inserted into the sleeve (5) has retaining arms each provided with a hook (20) for gripping behind the retaining rib (2) and a radially external inclined surface (21). When the sleeve (5) and latching device (6) move apart, the inclined surfaces (21) are compressed against a front edge of an aperture (12) receiving the hook (20) in an axially displaceable manner, so that the hook (20) stays correspondingly more tightly engaged with the retaining rib (2). When the latching device (6) and the inserted fluid line (1) are pulled apart, a radially internal inclined surface (23) of the hook comes into contact with the retaining rib (2) so that the retaining arms (18) are spread apart and make uncoupling possible.

Abstract: A cylinder valve outlet includes a bore with a large cylindrical entry leading to a tapered seat. A nipple with a cylindrical neck is fit into the large diameter entry of the bore of the valve outlet. The nipple further includes an arcuately convex mating end for seating in the conically tapered seat of the valve outlet. A seal enhancer is between the valve outlet and the nipple. The seal enhancer is generally tubular with opposed leading and trailing ends and a cylindrical section therebetween. The leading end is tapered for engagement between the tapered seat of the valve outlet and the mating end of the nipple. The trailing end of the seal enhancer is flared outwardly. The seal enhancer is shorter than the mating portions of the nipple so that the outwardly flared trailing end is visually readily apparent. The outwardly flared trailing end also facilitates separation of the seal enhancer from either the nipple or the valve outlet when the gas cylinder is being replaced.

Abstract: A disengagement tool for a coupling assembly including a receiving tubular member for receiving a first tubular member, the receiving tubular member having an inner portion defining an inner bore dimensioned to receive one end of the first member and an outer portion defining an internal annular cavity intersecting the inner bore and projecting radially therefrom and a split lock ring disposed in the annular cavity and adapted to expand circumferentially therein during insertion of the first tubular member into the receiving tubular member. Forming the tool are parts with actuator end portions for engaging circumferential edge portions of the split ring and a driver portion for engaging an end thereof to facilitate axial rotation thereof on the first tubular member.

Abstract: An adaptor for extending a pipe through a barrier and securing the pipe therein which comprises a pipe segment having a leading end for insertion through the barrier and a trailing end to remain at the insertion side of the barrier upon insertion of the adaptor, each end being adapted to receive a pipe fitting. The leading end is provided with peripheral cutting teeth for boring a hole through and thereby penetrating the barrier upon rotation of the pipe around its longitudinal axis. An externally threaded section along the pipe is sized and configured to be self-threaded though the hole bored by the penetration end to secure the pipe therein and a stop is located toward the trailing end from the threaded section to engaging the outer surface of the barrier to stop further penetration of the adaptor. An installation tool which may be rotationally driven by a hand drill is also provided.

Abstract: A valve-coupling assembly comprising a manifold electromagnetic valve and couplings fitted thereto. The manifold electromagnetic valve is connected to the actuators through tubes respectively, and controls the operations of the respective actuators. Connecting members, each having pipe couplings connected thereto with tubes respectively, are detachably mounted on either one of the electromagnetic valves and a manifold block. With this arrangement, either of a manifold piping system and a valve piping system is selected. Either of a smaller-diameter tube and a larger-diameter tube is selectively connected to the aforesaid pipe coupling. Fastening of the tube connected and fastened to the pipe coupling is released by a fastening-releasing member, whereby the tube is easily removed and replaced by a tube having a diameter of a different size.

Abstract: A fitting for directing fluid flow through a fluid impervious wall includes an internally threaded conduit portion and an externally threaded retainer portion wherein the retainer portion includes two tab members for acquisition by a retention tool during fabrication and installation and the conduit also includes an input portion substantially similar in diameter to the preformed opening in the fluid impervious wall for maximizing flow rate through the fitting.

Abstract: High temperature ceramic nut of aluminum oxide for use in coupling a flared tube to a flare fitting.

Abstract: The disclosure relates to a tube coupling comprising a coupling body, having a throughway open at one end to receive a tube. A first collet is mounted in the throughway to grip the tube and resist extraction of the tube from the throughway. A cap is mounted to extend over the open end of the coupling body to house a second collet arranged head to head with the first collet. The second collet is engageable with an annular abutment on the tube to retain the tube in the coupling body. A single release means in the form of plunger elements is provided on the cap to act on the collets to allow release of the tube from the coupling body.

Abstract: The syringe tip is connected to a syringe head by an assembly that permits quick detachment and replacement of syringe tips without the use of tools. In one embodiment the assembly is adjustable for permitting or restricting rotation of the syringe tip.