Abstract: A swiveling hose coupling comprising first and second nipples and a cylindrical shell. The cylindrical shell includes a swivel shell, and first and second retaining rings. The swivel shell is set between the first and second retaining rings. The first and second nipples are in proximity with one another within the cylindrical shell, but are separated by antifriction bearings. The first and second nipple rotate independent of one another to prevent inhibition of liquid flow in a hose coupled to the swiveling hose coupling. The first and second nipples are set in the cylindrical shell, using journal bearing grooves on the first and second nipple, in which the journal bearing grooves abut the first and second retaining rings. Reference points for the application of a hose coupling clamp are provided by an indexing ring on each of the nipples.

Abstract: A connector is forming a connection between a pipe or other item having a threaded end and a length of hose. The connector comprises an elongate hose engaging element (5) and, located thereon, a collar (35) having a threaded portion (39) for engagement with a threaded pipe end. The connector is provided with sealing means (49) for sealing between the collar and the hose engaging element.

Abstract: A swiveling hose coupling comprising first and second nipples and a cylindrical shell. The cylindrical shell includes a swivel shell, and first and second retaining rings. The swivel shell is set between the first and second retaining rings. The first and second nipples are in proximity with one another within the cylindrical shell, but are separated by antifriction bearings. The first and second nipple rotate independent of one another to prevent inhibition of liquid flow in a hose coupled to the swiveling hose coupling. The first and second nipples are set in the cylindrical shell, using journal bearing grooves on the first and second nipple, in which the journal bearing grooves abut the first and second retaining rings. Reference points for the application of a hose coupling clamp are provided by an indexing ring on each of the nipples.

Abstract: An adapter for rotatably connecting a sprinkler head to a water-transporting standpipe having a cylindrical upper end. The adapter includes three parts: a cup-like base adapted to rest on the upper end of the standpipe in sealed fashion, a male stem adapted to rotatably and scalingly seat in the cup-like base, and an oversleeve adapted to fit over the stem and the base and to be locked to the upper end of the standpipe by threaded connection such that a portion of the male stem protrudes from the oversleeve to be secured to the sprinkler head for rotation therewith. The adapter is sealed at several points internally to positively prevent water leaks, and is easily disassembled for replacement, repair, or cleaning, by hand or with simple hand tools, since no permanent connection is required between the adapter, the standpipe, and the sprinkler head.

Abstract: A miniature patio heater is provided which has a total height of approximately 3 ft. and which has a shroud with a diameter less than 2 ft. The patio heater includes a base having a vertically extending chamber, which is approximately 1.5 ft. high, for receiving a small gas bottle. A hollow post extends upwardly from the upper end of the chamber. A heater assembly and shroud are supported at the upper end of the post. A gas line extends along the inside of the hollow post between the heater assembly and the chamber. A connector assembly provides a pivotal connection between the end of the gas line and a regulator connected to a gas bottle within the chamber. The chamber is provided with an access opening for inserting and removing the gas bottle. Thus, the gas bottle, with attached regulator, can be swung from a vertical upright position within the chamber outwardly through the access opening to an angular position to facilitate removal of an empty gas bottle and replacement with a full gas bottle.

Abstract: A miniature patio heater is provided which has a total height of approximately 3 ft. and which has a shroud with a diameter less than 2 ft. The patio heater includes a base having a vertically extending chamber, which is approximately 1.5 ft. high, for receiving a small gas bottle. A hollow post extends upwardly from the upper end of the chamber. A heater assembly and shroud are supported at the upper end of the post. A gas line extends along the inside of the hollow post between the heater assembly and the chamber. A connector assembly provides a pivotal connection between the end of the gas line and a regulator connected to a gas bottle within the chamber. The chamber is provided with an access opening for inserting and removing the gas bottle. Thus, the gas bottle, with attached regulator, can be swung from a vertical upright position within the chamber outwardly through the access opening to an angular position to facilitate removal of an empty gas bottle and replacement with a fall gas bottle.

Abstract: A fast rotation joint is disclosed. The fast rotation joint is engaged between a machine body and a joint of the transferring flexible tube. The fast rotation joint includes mainly a first main body, a second main body, and a third main body. A drain-preventing pad is illustrated between the first main body and the second main body. The drain-preventing pad is used to prevent air from drainage so that the pressure will be insufficient. A plurality of rollers are mounted between the second main body and the third main body for preventing the deformation from the engagement of the machine body with the transferring flexible tube so as to increase the lifetime of the transferring flexible tube and the joint.

Abstract: A swivel joint for coupling a first conduit to a second conduit includes a swivel bearing comprising a body of fluid. The swivel bearing eliminates the creation and transmission of torsional and shear loads when one or both of the conduits are axially loaded.

Abstract: A transmission for use in the power train of a motor vehicle has a rotary first component (such as a shaft), a second component which may but need not be rotatable, a fluid-conveying conduit having a first end portion extending into a first socket provided in the first component and a second end portion extending into a socket of the second component, a split-ring piston packing located in an external groove of the first end portion, and an O-ring received in an external groove of the second end portion. The O-ring prevents the conduit and the second component from rotating relative to each other.

Abstract: A rotary union for delivery of a coolant fluid to a spindle of a metal working machine comprises a housing having a cylindrical bore containing bearings for journaling a tubular shaft therein wherein the improvement resides in the provision of a floating bushing seal as the high-pressure seal. The floating bushing seal assembly includes a seal housing containing a plurality of longitudinally disposed bushing rings that have a low clearance fit with respect to the tubular shaft of the rotary union.

Abstract: A coupling assembly includes a pair of glands having ends that seal on opposite faces of a seal member. A coupling nut assembly cooperates with the glands to urge the ends against the seal member. A torque suppression assembly is mounted on a groove of the gland to limit rotational forces from the coupling nut assembly to the gland. The torque suppression assembly includes a thrust member that engages the coupling nut assembly and a bearing member that transfers axial make-up forces from the thrust member to the gland and rotates relative to the thrust member to reduce the torque transfer.

Abstract: A hose female fitting comprising a female hose connector, an elongated swivel nipple interfitted with the female hose connector, the female hose connector having a washer-support shoulder, inner threads for attachment to a male connector, a seal-receiving annular groove and a flange-receiving annular groove in an inner peripheral wall, the nipple having hose-engageable protrusion, a first annular flange extending into the flange-receiving groove of the female hose connector, and a second annular flange abutting the axial outer end of the female hose connector second portion, and an annular seal in the seal-receiving annular groove.

Abstract: A swivel fitting includes a first annular member and a second annular member. The first annular member has a second end which is threaded and a first end which receives the first end of the second annular member. The second annular member has a second end which is received within a tube or hose. The members are coupled together by expanding a frusto-conical end section of the second annular member within the first annular member, so that a radial lip on the frusto-conical section seats within an annular grove formed within the first annular member. The swivel fitting is sealed with an O-ring which is sandwiched between the radially extending stop on the first annular member and a shoulder on the second annular member.

Abstract: A universal joint for a shower head includes a water tube with an end coupler secured to an end thereof, the end coupler including an annular groove in an outer periphery thereof. A fitting includes a stop flange on a first end of an inner periphery thereof and a threading defined in a second end of the inner periphery thereof. The fitting is mounted around the end coupler and the end of the water tube with the threading of the fitting engaged with an end of the shower head. An anti-leak washer is mounted in the annular groove of the end coupler and in sealing contact with the inner periphery of the fitting. A sleeve is mounted between the end of the water tube and the fitting and bears against the stop flange of the fitting.

Abstract: A fluid swivel of the type that includes a transfer chamber (56) formed between inner and outer main parts (52, 54), is constructed so sand and other particles settling out of the fluid, does not find its way into the lower gap passage (86) and quickly wear out a seal. A second of the main parts has a lower wall with a raised barrier (110) close to the top (122) of the lower gap passage. The first main part lower wall forms a first barrier (112) in the form of a projection that lies closely over the second barrier. The two barriers are closely spaced to form an entrance region (120) leading to the lower gap passage, with the entrance region including an upstream entrance part (132) that extends vertically or at an upward incline to discourage the migration of sand therealong.

Abstract: In a weldless joint 13, screwing a fastening member 13 into a joint body allows two pipes to move closer to each other in an axial direction without rotating. The two pipes can be thus connected without welded. Packings and disposed in the joint body prevent the leakage of gas through the contact surfaces of the pipes and, further, the leakage of gas from the inside of the joint body to the outside thereof. Accordingly, no packing or sealing element is needed on the periphery of the fastening member.

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 swivel seal assembly is defined for providing sealed high pressure fluid communication between relatively rotatable generally coaxial conduits where dynamic runout and static misalignment may occur to one conduit relative to the other. A generally tubular washpipe is mounted in pivotally articulating relation to one conduit, and a generally tubular seal housing is telescoped over the washpipe and mounted in pivotally articulating relation to the other conduit. High pressure, staged rotary seals are supported by the seal housing and maintain bearing and sealing engagement with the washpipe so that the seal housing and washpipe articulate in unison in response to said static misalignment and dynamic runout, thereby virtually eliminating relative lateral motion between the seal housing and washpipe and minimizing rotary seal extrusion damage.

Abstract: A sealing system for a rotatable fluid conduit coupling or swivel, in particular a swivel for the off-shore oil and gas exploitation or the like, the coupling comprising an inner or first part, an outer or second part concentrically surrounding the first part, an annular chamber formed by the opposite outer and/or inner walls of the inner and outer parts respectively, the chamber being connected to a fluid conduit in the first part and a fluid conduit in the second part, and a clearance between the parts on either side of the chamber which clearances each are sealed by at least one sealing ring located in an annular recess in one and/or the other of the opposite walls forming the clearance, the sealing ring being of resilient low friction material and of the type which allows flexing of the seal lips under over pressure in the clearance from the side of the chamber beyond the pressure behind the sealing ring, the improvement being that in the recess the sealing ring cooperates with or has been provided with m

Abstract: A pipe swivel joint comprises a female conduit element and a male conduit element rotatably engaging the female conduit element. A removable plug within the female conduit element maintains a main seal in proper position for bridging a clearance between the female and male conduit elements. The plug is easily removed once the main seal is to be replaced, and is installed back in place once the main seal has been replaced, thereby avoiding dismantling of the swivel joint.

Abstract: The hose end conduit swivel connector consists of a first conduit, adapted to be connected for example to a filler hose, and terminating in a bell-like housing within which resides a nipple with ball bearing rotation permitted between the two. Thus a pair of aligned conduits are provided with relative 360 degree rotation between the nipple and the housing. Leakage of fluid being transmitted through the connector is prevented by two sealing faces, one being located on a annular stationary seal member retained in the housing, which cooperates with a corresponding sealing face on an opposed rotating metallic seal. The sealing faces are carefully lapped so that leakage is substantially prevented from the interior of the conduits. A thrust plate and wave spring are interposed between the swivel connector and the nipple to cushion shock to the connector should the connector be accidently dropped or otherwise misused to prevent damage to the seals and the other components comprising the connector.

Abstract: A medical device is herein described for provision of a pressurized fluid through interchangeable probes. In the preferred embodiment of this medical device, the interchangeable probes are mounted to a handset having a quick disconnect/reconnect mount which not only permits rapid attachment and removal of such probes to the handset, but also the freedom of change in orientation of the probe relative to the handset to accommodate variable condition/requirements of an operative procedure and clinician preferences. In the preferred embodiment of this invention, quick disconnect/reconnect mount of this invention permits rotational movements of the probe tip while preserving sealing engagement thereof to the handset.

Abstract: A tubing end-piece interconnects a free end of a piece of tubing and a tubing connector or fitting so that a fluid can flow between the tubing and the fitting or connector. The tubing end-piece includes a body member extending along a longitudinal axis with a bore extending longitudinally therethrough. The body member has an elongated body portion, a doughnut-shaped head portion and a frustoconically-shaped tail portion. The body portion has an outer body surface configured in a shape of a frustum that tapers from a first end and towards a second end. The doughnut-shaped head portion is connected to the first end of said body portion and extends radially outwardly relative to the longitudinal axis to form in cross-section an outer curved surface commencing from the first end and terminating in an outer peripheral edge which defines a first opening into the bore.

Abstract: A dynamic sealing arrangement for connectors carrying high pressure fluids such as are used in the oil and gas industry for transferring production fluids from drilling installations to transport vessels. The sealing arrangement comprises a primary and a secondary U-shaped hydraulically operated sealing ring with open sides facing away from the junction of the connectors in the direction of the fluid leakage path. Barrier fluid under a pressure higher than that of the production fluid is supplied to the chamber between the sealing rings and independently to the open side of the secondary seal. The primary seal thus experiences a pressure differential and is activated. The secondary seal experiences a pressure differential and is activated only if the primary seal fails. Thus the secondary seal does not wear under normal usage of the connectors and is brought into operation automatically, efficiently and without delay when the primary seal is damaged. Substantial cost savings are achieved.

Abstract: A rotatable water conduit couple for a pit gun including a water conduit couple with a first portion having a hollow cylinder with a first end and a second end. A disk is coupled coaxially to the first end of the hollow cylinder with a plurality of coupling apertures formed therethrough adjacent a periphery thereof. A flange is integrally formed about the hollow cylinder and extended radially therefrom adjacent the second end thereof. Further provided is an annular second portion having an end surface with a plurality of threaded bolts coupled thereto and extended perpendicularly therefrom in parallel with an axis about which the cylinder of the first portion is situated. The second portion further includes a stepped inboard surface with at least one step formed therein. By this structure, the flange of the first portion slidably abuts the step of the second portion forming an annular compartment for allowing a gasket to be situated therein.

Abstract: A sealing system for a rotatable fluid conduit coupling or swivel, in particular a swivel for the off-shore oil and gas exploitation or the like, the coupling comprising an inner or first part, an outer or second part concentrically surrounding the first part, an annular chamber formed by the opposite outer and/or inner walls of the inner and outer parts respectively, the chamber being connected to a fluid conduit in the first part and a fluid conduit in the second part, and a clearance between the parts on either side of the chamber which clearances each are sealed by at least one sealing ring located in an annular recess in one and/or the other of the opposite walls forming the clearance, the sealing ring being of resilient low friction material and of the type which allows flexing of the seal lips under over pressure in the clearance from the side of the chamber beyond the pressure behind the sealing ring, the improvement being that in the recess the sealing ring cooperates with or has been provided with m

Abstract: A self-cleaning rotary union apparatus provides a fluid coupling between a pair of relatively rotatable fixture elements, and includes a base and a body that are rotatable relative to one another. The base includes a mounting surface, an interior surface opposing the mounting surface, a fluid passageway extending into the base, and a plurality of bores extending through the base between the mounting surface and the interior surface. The bores are countersunk adjacent the interior surface to permit flange mounting of the base on one of the fixture elements. An elongated rotor protrudes from the interior surface of the base and includes a cylindrical side surface provided with an annular channel and a fluid passageway that communicates with the annular channel and with the passageway in the base.

Abstract: A swivel connector for connecting a garden hose with a water receiving device including an inner ring seal member having a central tubular portion and a first and second seal flange extending from either peripheral end of the central portion, each of the first and second flanges having a resilient outer sealing surface that fits within an inner peripheral groove provided within a first and second female swivel member. The first female swivel member has a conventional female hose fitting. The second female swivel member includes a connecting mechanism for forming a fluid connection with a water flow receiving device. The connecting mechanism may take the form of a conventional male hose fitting or an integrally formed connection with a water flow receiving device such as a spray nozzle.

Abstract: A coupling device for providing a sealing arrangement with a rotating seal member includes a housing having a fluid coolant inlet, an air coolant inlet a passageway therethrough, and a seal shaft member having a seal member thereon and an axial bore therethrough positioned in said housing for axial sliding movement within the housing between an unpressurized position and a pressurized position. The seal shaft member, when in the pressurized position, provides a sealing arrangement between the rotating seal member and the shaft seal member. The coupling device further includes a first sealing assembly positioned between the engaging surfaces of the shaft member and the housing and structurally arranged to communicate with the air coolant inlet and a second sealing assembly positioned between the engaging surfaces of the shaft member and the housing and structurally arranged to communicate with said fluid coolant inlet.

Abstract: A rotary joint for delivering a mixed fluid from a radial inlet of a joint element axially through a high speed rotating shaft. Leakproof protection is first realized by one side of a wear block being compressed against an end face of the shaft. A spring presses a washer and an O-shaped ring against the other side of the wear block to prevent leakage and filter most solid impurities. Leakproof protection is also realized by covering the shaft with a seal to isolate leaking fluid from the first protection.

Abstract: A laminated fuel line has an inner layer of a synthetic material such as Nylon, an intermediate vapor barrier layer that contains a polyethylene terephathalate material (such as MYLAR), and an outer layer preferably of a high temperature resistant thermoplastic material such as a polyamide or VICHEM olefinic/PVC. A channeled fuel tube has an inner fuel jacket concentrically formed within and spaced from a relatively larger outer jacket, each of which can be formed with the laminated structure above. A connector for the channeled fuel line has a tubular end connecting element for Connecting between the inner and outer fuel lines, a tubular inner connecting element for connecting to the inner line through the end connecting element, and a tubular outer connecting element connecting over both the end connecting element and the inner connecting element. The outer connecting element has a first passageway for communicating with the inner line and a second passageway for communicating with the outer line.

Abstract: A rotatable connector having an enlarged annular flange positioned at the distal end of a tubular body. An annular cap having an aperture is received on the tubular body through the aperture so as to rotatably encircle the tubular body proximal of the retaining flange. A split ring rotatably encircles the tubular body between the retaining flange and the cap. The split ring has an inner diameter smaller than the outer diameter of the retaining flange and an outer diameter larger than the inner diameter of the aperture of the cap. An access chamber positioned at the proximal end of a tubular hub receives the distal end of the tubular body in mating relationship to enable the proximal end of the hub to be ridgedly coupled to the cap. A transfer duct communicating with the access chamber in the tubular hub is rotatably fluid coupled with the passage in the tubular body.

Abstract: A swivel device for coupling a back reamer to a plastic pipe to be drawn through a hole has a swivel shaft that extends into a tubular body and engages a bearing. At one side of the bearing an O-ring seals between the shaft and the body. A grease supply path extends past the bearing to a grease chamber on the bearing side of the O-ring and thence via a duct, to a grease chamber on the other side of the O-ring.

Abstract: The present invention relates to a swivelable connector 10 for plain end flexible conduit 12 which includes a tubular conduit 22 having an annular projection 28 disposed a predetermined distance from a first end thereof, a sealing element 70 and a rotatable retainer 48 disposed within the axial bore of the plain end flexible conduit and a retainer element 34 positioned over the outer surface of the flexible conduit 12 which secures the flexible conduit between the rotatably retainer and the retainer elements and provides a relative rotation between the flexible conduit 12 and conduit 22.

Abstract: A connection piece (2) for the connection of a pipe (19) to a plastic housing (1) of a valve, comprises a threaded plug (4) made of metal, which is arranged in a plastic sleeve (3) of the housing (1). At least one circumferential projection (9) and one corresponding circumferential groove (10) are provided between the threaded plug (4) and the plastic sleeve (3). The threaded plug (4) is secured only in an axial manner and freely rotatable beared in the plastic sleeve (3) by the connection of the circumferential projection (9) and the corresponding circumferential groove (10). The threaded plug (4) is provided protruding the plastic sleeve (3) to the outside and comprises a gripping surface (17) for the supply of a tool.

Abstract: A resuscitator apparatus including a resilient, self-inflating squeeze bag having a single combined inlet/outlet which is preferably removably connected to a first manifold in operative communication with a substantially unbiased valve device. The first manifold includes an inlet coupling adapted for connection to a source of pressurized respiratory gas such as oxygen and an outlet coupling adapted for connection to a first end of a tubular connector. The tubular connector is desirably formed as a short, kink-resistant, flexible hinge member. The second end of the tubular connector is adapted for swiveled connection to an inlet coupling of a second manifold in operative communication with a non-rebreathing valve contained within a tubular, preferably L-shaped housing.

Abstract: A rotatable connector joint formed by a main joint body having an axial passage and a ring groove, followed by an axial narrowed portion with a bevelled edge, followed by another widened portion, with a supporting wall for a hermetic O-ring used during an insertion of a terminal end of a rotatable joint body into the main joint body. The rotatable joint body includes a supporting wall for the ring, followed by a hexagonal external projection. The rotatable joint body including at its other extremity, a male clamp or a female clamp, with external screw threads or internal screw threads, the latter being equipped with an axial passage and having, at the front extremity, a narrowed portion which, with the insertion of a cylindrical tool with a tapered point, expands the terminal end and accommodates it in the bevelled edge and ring groove of the main joint body, locking the rotatable joint body axially.

Abstract: A device connects two components in a manner that allows fluid to flow therebetween and allows one component to rotate with respect to the other. The device has a first coupling with first and second fluid passages extending between opposite ends. A collar is attached to one end of the first coupling and includes a first flange extending radially inward. A tubular fitting has a second flange extending radially outward and in-between the first flange and the first coupling. A first seal is compressed between the first and second flanges when pressurized fluid flows through the first coupling. A second coupling is attached to the tubular fitting and has third and fourth passages. A tubular second seal is sealingly received within and connects the first and third passages.

Abstract: A swivel coupling device is disclosed which includes a first portion having a first and a second end. The first portion includes a tubular extension which defines a cylindrical outer surface having an annular recess therein. An O-ring co-operates with and is partially disposed within the recess. A hexagon member is disposed between the extension and the second end of the first portion for selectively inhibiting rotational movement of the first portion. A collar is disposed between the recess and the hexagonal member. The collar and the hexagonal member define therebetween an annular groove. An open sided washer co-operates with the annular groove. A second portion has a first and a second extremity and defines a bore and a counter bore. The bore extends from the first extremity to the counter bore and the counter bore extends from the bore to the second extremity. A cylindrical insert is disposed within the counter bore.

Abstract: A rotatable flange union for use with vacuum systems includes a first flange, a second flange and a connector which connects the first flange to the second flange and allows the first flange to rotate 360 degrees with respect to the second flange. In the preferred embodiment, tubing of the first flange is placed within tubing of the second flange. Additionally, the connector includes a first quad ring seal, a second quad ring seal, and a cavity in the second flange. The first quad ring seal is in contact with an inner diameter of the second flange and is in contact with an outer diameter of the first flange. The second quad ring seal is in contact with the inner diameter of the second flange and is in contact with the outer diameter of the first flange. The cavity is between the first quad ring seal and the second quad ring seal. The cavity is pumped to a pressure of less than ten millitorr.

Abstract: The nozzle swivel joint includes two couplings which are joined together at mutually flat interface surfaces. Each coupling has an axial flow passage, and the two couplings are held together in mutually rotatable position by a manifold with a threaded end; the manifold having inlet and outlet ports respectively aligned to the flow passages in the couplings. The manifold is sealably affixed to one of the couplings, with a gasket forming a seal about the threadable manifold. An O-ring is compressed between the respective flat interface surfaces to provide a limited friction seal for restricting relative rotation between the couplings, while at the same time permitting rotation to occur with a limited amount of force.

Abstract: A pipe joint comprises a pair of tubular joint members having a gasket holding annular projection on each of butting faces thereof, an annular gasket interposed between the butting end faces of the joint members, and a nut for connecting the joint members together. When the nut is tightened up, an indentation is formed in a surface of the gasket pressed by each of the gasket holding projections, and the gasket is pressed also by a portion of the end face of each joint member having no annular projection.

Abstract: A pipe joint can be attached to a hydraulic apparatus so as to be able to absorb vibrations of a pipe or the like connected to thereto. The pipe joint comprises a joint member having one end provided with an externally threaded portion in which external threads are cut, an annular clearance groove and an O ring squeezing surface, and an intermediate member to be fixedly screwed in the hydraulic apparatus, provided with an internally threaded portion in which internal threads are cut and an annular clearance groove. When the externally threaded portion of the joint member is screwed completely in the intermediate member, the externally threaded portion of the joint member drops into the annular clearance groove of the intermediate member, and the internally threaded portion of the intermediate member drops into the annular clearance groove of the joint member, so that the joint member is able to turn relative to the intermediate member.

Abstract: A rotary joint for supplying and/or removing a fluid heat transfer medium to/from a rapidly rotating roll or drum supported upon journals. The rotary joint nipple threads into the journal bore and closely fitting complementarily shaped cylindrical surfaces on the journal end and joint nipple interengage to concentrically relate the joint to the journal, and engaging radial surfaces on the journal and nipple further coaxially position the joint with respect to the journal to prevent relative tilting. In an embodiment the joint nipple includes an internal seal ring axially biased against a counterseat to reduce the rotary joint axial dimension and permit utilization of wider spaced bearings which improves stability, balances bearing loads and increases bearing life.

Abstract: A coupling for a flexible soft hose for example for a foam supply duct of a car wash includes a helical spring wrapped around the end of the hose with a spring on the end of the hose inserted into a sleeve member and abutting a shoulder within the sleeve member. A threaded insert member is then engaged through the sleeve member to the inside of the hose thus squeezing the hose outwardly to engage the inside surface of the spring. A swivel coupling can be provided on the male insert member using a replaceable O-ring and clip ring mounting.

Abstract: A connector for connecting electrical conduit to nonmetallic electrical enclosures includes a connector body, a locking ring, and a conduit nut rotatably mounted on the connector body. The connector body has a first threaded end threadedly connected to the enclosure and a second end rotatably coupled to the conduit nut. The second end has an outwardly extending radial flange which mates with an inwardly extending radial flange on the conduit nut to rotatably couple the conduit nut to the body, without limiting rotational movement of the conduit nut on the body. The conduit nut has internal threads to mate with the male threads of an electrical conduit. The assembly allows an electrical conduit to be connected securely to the enclosure by tightening the conduit nut onto the conduit without transferring torsional stress to the non-metallic enclosure. The locking ring is threadedly coupled to the connector body and can be rotated to lock the conduit nut in place.

Abstract: In a non-contacting fluid coupling device for feeding fluid to a hollow core of a rotating tool, one end of a hollow coupling shaft is attached in fluid communication to the shaft of the rotating tool. The other end of the coupling shaft is received, in a non-contact manner, in a hollow of a coupling main body. The coupling main body has an opening and passage in fluid communication with the hollow coupling shaft to introduce high pressure fluid to the hollow core of the rotating tool. Between the hollow of the coupling main body and the coupling shaft is at least one pressure reduction passage. Downstream of each pressure reduction passage is a pressure reduction chamber having a drain hole to the atmosphere. Downstream of the last pressure reduction chamber is a minute space between the coupling main body and the coupling shaft into which is introduced compressed air that precludes leakage of the fluid further downstream in the coupling device.

Abstract: A rotary fluid union comprises a rotor having a sealing surface and mounted into a rotary member, and a stator having a sealing face and mounted in a stationary housing, the rotor and stator being mechanically disconnected other than by the sealing faces thereof being abutted. The sealing faces are abutted to define a gapless sealing interface, normally disposed in a plane perpendicular to the axis of rotation, but inclined to the axis of rotation in situation where the rotary member deflects radially from coincidence with the axis of rotation, whereby the sealing interface plane is at an angle to the perpendicular plane.

Abstract: The conduit swivel connector consists of a first conduit, adapted to be connected for example to a filler hose, and terminating in a bell-like housing within which resides a nipple with ball bearing rotation permitted between the two. Thus a pair of aligned conduits are provided with relative 360 degree rotation between the nipple and the housing. Leakage of fluid being transmitted through the connector is prevented by a series of sealing faces, one being located on a annular sealing member retained in the housing, which cooperates with a corresponding sealing face on an intermediate floating seal ring. The opposite side of the seal ring is provided also with a sealing face which engages in sealing sliding engagement with an annular face on the end of the nipple. The sealing faces are carefully lapped so that leakage is substantially prevented from the interior of the conduits.

Abstract: A pipe swivel joint with male and female hubs and an improved bore seal assembly having an anti-extrusion ring that axially energizes the swivel joint hubs toward their operational position as the joint is assembled.