Abstract: A conduit coupling assembly for connecting the end portions of a pair of lengths of tubular conduit in coaxial, abutting relationship. Each end portion has external threads of the same size. The coupling assembly includes an abutment ring, locking means, and an outer coupling. The abutment ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit, while the locking means prevents unthreading of the abutment ring once it is installed. The outer coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The inside dimensions of the coupling ends are smaller than an outside dimension of the ring so that the ring is unable to move past the coupling ends.

Abstract: A coupling for connecting substantially identical external threaded ends of tubular conduits and the like in end-to-end relation, the coupling including a first or outer coupling member having an internal chamber and adapted to be threaded onto the threaded end of either of the conduits to be connected, and a second coupling member disposed within the chamber in the outer coupling member and adapted for threaded engagement with the threaded end of either conduit. The first and second coupling members are adapted to be threaded onto a selected one of the conduits in a manner enabling an axial alignment of the conduits by relative lateral movement therebetween after which the outer coupling member is threaded onto the other of the conduits to draw the adjacent ends of the conduits into abutting end-to-end relation.

Abstract: A coupling apparatus is provided for quick coupling of a plug container to a casing collar. A latch collar including pivotally connected arcuate collar portions is provided for engaging a lower end of the casing collar. A threaded adjustment is provided for increasing an initial compression of a seal against the upper end of the casing collar. Hydraulic biasing increases the seal against the upper end of the casing collar. An improved construction of inlet nozzles for the plug container is also disclosed.

Abstract: The device allows the shafts 5 and 20 to be coupled together on a trial and error basis, said shafts being recessed relative to the ends of the stationary stators. The shaft ends have splines 6 and 21 and are coupled by means of a sleeve 22. Before coupling, the shafts are reference marked relative to the stationary portion by means of cams 27 (and 36 which is not shown in the figure) which enter a groove 6 in the shaft 5 and in a groove of the sleeve 22. During the coupling operation, the cams are retracted by a part 37 at the end of a rod 34 which bears against the cam support yoke 35 for the cam 36 in the case of the cam 27 and by the end 48 of the body in the case of the cam 36. The bodies are connected together by a coupling sleeve 9.

Abstract: A swivel spout construction for a faucet in which there is provided a composite spout defined by an elongated generally U-shaped shell and an elongated plate both molded from plastic material. The shell and plate define sealing flanges which are secured together by means of hot plate welding. The shell and plate together define end walls, sidewalls and an upper and bottom wall which form a waterway. A hollow, cylindrical spud extends from the bottom of the plate at the spout inlet and is retained in a cylindrical bore of the faucet underbody by means of a retaining ring and a hold down nut. The construction provides for a swivel spout which is suitable for kitchen use under relatively high hydrostatic pressures and with a capability to withstand water hammer and shock pressures generated by the opening and closing of a dishwasher inlet valve. The composite spout provides for a low cost esthetically pleasing design that has relative ease of manufacture as compared to other designs.

Abstract: Male and female parts (1, 2) are included in a coupling device which is provided with locking members for said parts. The locking members comprise a lock nut (3) which is adapted to be fitted on the female part and a locking ring (4) which can be inserted between two opposite locking surfaces (1a' and 3b) on the male part and the locking unit to prevent mutual pulling-apart movements between the male and female parts. An opposing member (9, 11, 12) is adapted to impart to the locking unit a first distinct longitudinal displacement position in relation to the female part. In this longitudinal displacement position, at least one sealing ring (6, 7) is inserted between the male and female parts and the male part is comparatively loosely suspended in and sealed with respect to the female part by said sealing ring.

Abstract: A coupling sleeve for joining the ends of two conduits. One end is threaded, the other is unthreaded. The conduit has a female thread which engages the threaded end. The unthreaded end has a terminal portion of reduced external diameter running to an inwardly displaced groove in which a locking ring is disposed. The end of the coupling sleeve which engages the unthreaded conduit end has a recess in which the locking ring is axially slidable and a flange that engages a full diameter external section of the unthreaded end. The recess is long enough to permit the coupling sleeve to be fully received on the unthreaded conduit end when the female thread is disengaged from the threaded end of the conduit.

Abstract: A self-locking coupling nut (14) includes a nut surrounding a first shell (12) for threaded engagement with a second shell (66) to secure the shells in mating engagement. A plurality of balls (52) mounted in the nut are initially engaged with a ball receiving surface (24) on the first shell, and upon threaded engagement between the nut and second ball are cammed outwardly into ball receiving grooves (32) to secure the nut against inadvertent disengagement from the second ball. Outward movement of the balls cams a spring (56) outwardly to provide visual and tactile proof of the locked condition of the self-locking coupling nut. Threaded engagement of the nut with the second shell also compresses a spring between a thrust ring (20) on the first shell and a retaining ring (44) on the nut.

Abstract: A synthetic resin valve in which a body is connected end-to-end in abutting relationship to a cylindrical body cap having a flange at one end and a seat at the other end by screwing the two together with a cap nut. The seat includes a ring-like element having a lesser diameter portion which is fitted into an annular groove adjacent to a front end portion of the body cap, and a greater diameter portion which engages the outer peripheral surface of the front end portion of the body cap, the front face of the larger diameter portion of the ring-like element preferably resting in the same plane as the front face of the body cap which abuts the body. The ring-like element is cut radially in one circumferential region so that it may be deformed around the body cap such that its smaller diameter region may be fitted into the annular groove, and has a rear wall for engaging the cap nut.

Abstract: A hydraulic coupling device for a multi-line hose comprises a screw cap which houses a plurality of plug pins. The hose has a plurality of hydraulic lines bunched together within a flexible sheath. The hose is connected to the coupling device by means of a sleeve, and the lines are connected to the plug pins. Each of the plug pins has a collar. The collars are held against an apertured holding disc by abutment faces formed respectively on a retainer disc and the sleeve. The plug pins are mounted so as to have a predetermined amount of axial and radial play.

Abstract: A coupling is provided to hold together a cone and socket joint between items of laboratory glassware. A first annular member is positioned about the cone portion of the joint and has a male threaded end. A second annular member is positioned about the socket portion of the joint and has a female threaded end which may be screwed onto the male threaded end of the first annular member. The first annular member has a seat which engages with an elastomeric sealing ring so that as the first and second annular members are tightened together the elastomeric sealing ring is compressed into the external line of junction corresponding to the outermost circumference of contact between the cone portion and the socket portion of the assembled joint. The second annular member locates indirectly behind the external strengthening lip around the mouth of the socket portion by means of an interjacent ring which has a male frustoconical surface.

Abstract: In a coupling unit having first and second parts connectable and disconnectable with each other, the second part is provided with an outer ring-shaped groove which extends through the wall of the second part along the circumference. The first part has a corresponding recess or groove. The parts are connected by at least one locking ring. The locking ring is located in the groove of the second part and has at least one indentation which extends through the groove and interacts with the recess in the first part.

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 cylinder joint for joining two vertically oriented cylinder sections, which aligns the cylinders and supports the weight of the upper cylinder section on the upper end of the lower cylinder section. A split ring and locking collar assembly maintain the assembled relation of the cylinder sections, and it provides a mechanically strong, fluid-tight joint.

Abstract: The disclosure is of a captured nut coupling particularly adapted to join two articles and to convey fluids between the joined articles. The coupling is a fastener comprising a split ring inner or male member and a solid retaining and locking outer or female member. The male and female members are locked together after the male member is connected to one of the articles to be joined. In one embodiment the inner male member bears an inner rib which rotatably engages a groove in one of the articles for connection and the outer female member includes a means for engaging the other article for connection.

Abstract: A coupling for thin-walled tubing, such as aircraft fuel lines, wherein a bearing ridge and O-Ring groove are preformed at the open tube end and wherein a coupling body, retaining nut and anchor ring are engageable over said bearing ridge and groove, the anchor ring being reversibly visible for inspection and in the form of an expansible doublesided buttress disengageably installed over the tube and combined with the retaining nut to abutt the said bearing ridge and related to the coupling body so as to have anti-extrusion features with respect to the O-Ring seal subjected to internal fluid pressures.

Abstract: A coupling for tubular members in mechanically flexible fluid tight relation, and providing cooperative means permitting limited axial, angular, and radial misalignment, while maintaining fluid tight connection. The unique design of this coupling allows for accommodating the various misalignments with assurance of fluid tight connection in a straight forward, inexpensive manner. Optional features which provide for damping of vibrations from the fluid lines to the coupling and means opposing axial forces tending to separate the fluid lines connected by the coupling are also disclosed.

Abstract: A hose coupling subassembly comprising a nipple with an enlarged head at one end, an external thread for attaching a socket to the nipple, and a groove between the head and thread. The subassembly includes a nut with an inturned flange engageable with the head for clamping the head against a part to which the hose coupling is to be attached. The bore of the nut flange is greater in diameter than the thread so that the nut may be assembled to the nipple by sliding it over the threaded portion. The nut is retained on the nipple by a washer extending into the groove.

Abstract: A coupling sleeve for joining the ends of two conduits. One end is threaded, the other is unthreaded. The coupling sleeve has a female thread which engages the threaded end. The unthreaded end has a terminal portion of reduced external diameter running to an inwardly displaced groove in which a locking ring is disposed. The end of the coupling sleeve which engages the unthreaded conduit end has a recess in which the locking ring is axially slidable and a flange that engages a full diameter external section of the unthreaded end. The recess is long enough to permit the coupling sleeve to be fully received on the unthreaded conduit end when the female thread is disengaged from the threaded end of the conduit.

Abstract: Rapidly connectable and disconnectable pipe union, comprising a bush on which are fixed one or more pipes provided with a notched flange. It comprises, in addition, a union body on which are fixed one or more pipes. This body comprises an outer threading on which is screwed a nut provided with a toothed rim and a sliding sleeve, connected to the nut by a ring. This nut comprises a toothed rib which meshes behind the notched flange. One application of the present invention is the connection of underwater pipes with one another or onto underwater apparatus by divers or by remotely controlled devices.

Abstract: This invention relates to a union for assembling a smooth pipe end to a bush, composed of two half-unions fitted in each other and assembled by a nut fast with a toothed ring. Each half union comprises a jaw which cooperates with a sliding ring, which ring is displaced by means of a nut fast with a toothed gear. Said jaws comprise on their inner periphery truncated surfaces which cooperate with truncated surfaces carried by said sliding rings to disconnect the half-unions by manoeuvring said lock nuts.

Abstract: Each section of a conduit with a constant diameter axial passageway has male pipe threads formed on its outer wall surface at one end. A coupling sleeve is retained captively on the other end of the conduit section by a resilient lock ring means positioned partially in an annular lock ring groove disposed on the outer surface of the conduit section axially inwardly of the end face of the conduit section, i.e. -- in a direction along the conduit section away from this end face, and partially in an annular lock ring groove disposed on the inner surface of the coupling sleeve. The lock ring means spans the two annular lock ring grooves to prevent the coupling sleeve from being pulled axially outwardly off the conduit section.

Abstract: A coupling nut is rotatably mounted on a barrel and retained thereon by the means of a snap ring. The snap ring is formed with forwardly and rearwardly extending tabs at its free ends which cooperate with a slot formed in the outer surface of the barrel and a recess formed in the inner surface of the nut which allows the nut to be assembled onto the barrel and removed therefrom without the use of a tool.

Abstract: Each section of an intermediate metal conduit with a constant diameter axial passageway has male pipe threads formed on its outer wall surface at one end. The other end of each conduit section has a short length of decreased outside diameter extending axially inwardly from the flat end face of the section, to form an external annular stop shoulder. A coupling sleeve has a pair of annular flanges which define central openings in mutual axial alignment but of different diameters such that the coupling sleeve may slide freely to a limited extent over the full external diameter of said other end of the conduit section. The coupling sleeve is retained captively on this other end by a resilent constrictable lock ring positioned in an annular lock ring groove disposed axially inwardly of the stop shoulder. When the coupling ring is unstressed, it protrudes, in part, radially outwardly of the groove and is in the path of movement of one of the flanges. The coupling sleeve can be retracted, i.e.

Abstract: A fire hydrant designed to prevent the unauthorized use of an outlet nozzle which is located on the above ground barrel portion of the stand pipe. The hydrant includes a valve means located within the barrel portion and provided with a valve member which is biased to a closed position extending across the upstream end of the outlet nozzle. A valve actuator is provided to be threaded onto the outlet nozzle for moving the valve member away from the closed position to an open position permitting the flow of water through the outlet nozzle.