Abstract: A locking telescoping joint is for use in a conduit connected to a wellhead, which permits the conduit to be axially displaced to a new position in the well bore without disconnecting the conduit from the wellhead, and secured in the new position. The locking telescoping joint includes two telescopically interconnected tubular sections which are relatively movable between a fully retracted and a fully extended position and can be locked in a desired position. In contrast with telescoping joints without the locking function which is useful to axially display downhole tools attached to the bottom end of the conduit. The locking telescoping joint enables the use of the telescoping joint to be extended into new applications, such as placing and maintaining a tubing string in tension or compression. The use of the locking telescoping joint reduces the time and cost of many well completion and maintenance operations and thereby reduces the cost of producing hydrocarbons.

Abstract: A slip-out preventing apparatus for sliding type joint mechanisms, wherein packing members having lip portions in an opposed state and adapted to seal a clearance between a housing, which is fitted around outer surfaces of end portions of two tubular bodies to be joined together, and the same tubular bodies by utilizing a fluid pressure in the tubular bodies are provided on inner surfaces of both end portions of the housing, locking projections are formed on outer surfaces of both end portions of the housing with locking portions provided on the outer surfaces of the two tubular bodies, slip-out preventing covers being fitted fixedly around the tubular bodies so as to bestride and engage these locking portions and locking projections. In a joint mechanism having a housing which is provided with packing members therein, and which is in a slidable condition with respect to tubular bodies to be joined together, a slip-out of the housing from the end portions of the tubular bodies can be reliably prevented.

Abstract: A fastener has an integral closure. The fastener maintains the relative position of concentrically nested or telescopically related inner and outer tubes. The closure occludes the inner tube. The fastener can be used for assembling children's products such as play-yards, strollers, swings, and other types of furniture, transports, and accessories.

Abstract: A tensioning device is disclosed which brings two tubular segments closer together with an intermediate adjustment sleeve. The sleeve is threaded externally and may be accessed internally by a tool to rotate it. The threaded sleeve is secured to the upper tubular in a manner that permits relative rotation. Rotation of the sleeve advances it downwardly in the lower tubular, pulling down the upper tubular secured to the rotating sleeve. The upper tubular translates until a load shoulder hits a support surface in the wellhead to achieve the desired tension in the string.

Abstract: A secondary tubing containment system (10) is provided for a discharge tube (18) of a chemical metering pump (14) in a chemical addition system (12). One end of the discharge tube (18) is engaged in a fitting (20) on the metering pump (14), and the other end of the discharge tube (18) is engaged in a fitting (22). The containment system (10) includes a pair of coupling nuts (30, 32), a connector in the form of a Tee (34), two cylindrical tubes (36, 38), a pair of unions (40, 42), and a drain tube (44). The inside and outside diameters of the tubes (36, 38) are sized to allow the tube (38) to be slid or telescoped into the tube (36) to allow the length of the containment system (10) to be adjusted. The union (40) is configured to sealingly engage the tube (38) along the length of the tube (38) to accommodate the adjustment.

Abstract: A sprayer device includes a tube extended from a sprayer member and a hose coupling the tube to a water reservoir. A pipe is slidably engaged on the hose and the tube. A control ferrule is engaged on the pipe and has an inclined inner peripheral surface for adjustable forcing and securing the pipe to the tube. One or more conduits may further be adjustably secured to the pipe. The pipe and the conduit may be easily and quickly adjusted relative to the tube and the pipe respectively and will not affect the water tight seal between the hose and the tube.

Abstract: An expansion tube joint of the present invention comprises a first cylindrical body, a second cylindrical body inserted along an axis of the first cylindrical body, a seal member mounted between the first and second cylindrical bodies closer to an insertion port of the first cylindrical body, a lock mechanism provided at a position deeper than the seal member for restricting a relative movement range along the axis of the first and second cylindrical bodies, and a coming-out preventing member for preventing the seal member from coming out from the insertion port of the first cylindrical body, wherein after a member constituting the lock mechanism is mounted, the seal member can be mounted.

Abstract: A flexible pipe connector having a first cylindrical member defining an annular restricting groove and a radial-expansion restricting portion, a second cylindrical member defining an annular attachment groove, and a retaining member fitted to the annular attachment groove, the radial-expansion restricting portion restricting a radial-expansion of the retaining member via contact with the retaining member in a radial direction so as to prevent a withdrawing movement of the retaining member from the annular attachment groove, wherein the second cylindrical member is configured to be inserted into the first cylindrical member and withdrawal of the retaining member permits removal of the first cylindrical member from the second cylindrical member.

Abstract: A high-pressure fuel injection pipe for a diesel engine includes a fuel pipe main body with opposed first and second ends. First and second fastening nuts are mounted over the first and second ends. A first unitary outer pipe is mounted over a portion of the fuel pipe main body and is mounted to the first fastening nut. A second unitary outer pipe is mounted over a portion of the fuel pipe main body and has an end mounted to the second fastening nut. The end of the second outer pipe is spaced from the second fastening nut is expanded circumferentially and telescoped over a portion of the first outer pipe. A sealing ring is sealingly engaged between the first and second outer pipes.

Abstract: An expansion flexible tube joint comprising a first cylindrical body having a pair of spherical surface ring materials each formed with partially spherical outer surface, a second cylindrical body comprising a sleeve inserted into the first cylindrical body for relative movement thereof from an axial direction thereof, the sleeve provided at its end portion with stopper means for limiting extending and contracting movement relative to the first cylindrical body, and third cylindrical bodies fitted over both outer peripheral surfaces and comprising a pair of casing tubes each having slidable spherical inner peripheral surfaces and connection portions at opposite ends thereof, wherein an end inner peripheral surface of each of third cylindrical bodies at the thereof to which second cylindrical body is inserted is chamfered, and the chamfered angle is 16° or greater, and the stopper means is mounted to an outer peripheral surface of the second cylindrical body and is formed into a closed ring shape.

Abstract: This disclosure relates to an expansion joint to connect two or more concentric bodies that are heated/cooled to different temperatures for the passage of liquid or gases. When the connecting portion is at an angle not in plane with the concentric bodies, the design allows for the gravity drainage of fluids and slurries from one connecting body to another without pooling or damming.

Abstract: A pressurized slip joint for a marine intervention riser decouples the flowhead assembly in the moon pool of a vessel from the riser string, enabling safe changeover of equipment during workover operations. One part of the slip joint assembly is coupled to the flowhead assembly through a flexible joint assembly. A second part of the slip joint assembly supports the riser string and is coupled to the tensioning mechanism. The first part may be inserted into the second part and locked in place during workover operations except when equipment changeover is taking place. When changeover is being carried out, the first and second parts are unlocked, so that the flowhead assembly does not move relative to the vessel. In the locked position, a metal-to-metal high pressure seal, with a secondary and tertiary seal controls the pressure in the riser. In the unlocked position, a hydraulically operated dynamic low pressure seal is used.

Abstract: A twist-lock connector for adjustably connecting interlocking telescopic tubular members includes a camming surface on the interior surface of a rotatable member which cooperates with the camming member of a seating member attached to a first tubular member. The twist-lock connector is employed by inserting the male end of a second tubular member inside the female end of a first tubular member to which the seating member is attached, and rotating the rotatable member in a first direction until the camming action causes the engaging surface of the seating member to lock by frictionally engaging the outer surface of the second tubular member. Disconnection of the tubular members is effected by reversing the order of the steps for connection. The twist-lock connector also includes an overtightening protection feature. When the rotatable member is rotated in the first direction relative to the seating member by approximately 180°, the lock is released, but without breakage of the twist-lock connector.

Abstract: A coupling for use in supplying air pressure to an air driven pump on a pallet is disclosed. The male half of the coupling is affixed to a pallet changing station and the female half is suspended from a pallet. Suspension of the female half from the pallet enables the male and the female half to couple despite misalignment. The male half includes two pistons and the female half includes a power port, a vent port and a central port. The power port is connected to an air driven hydraulic pump and the control port is connected to a pilot on a four-way valve. The hydraulic pump operates vides contained on the pallets. The number of vices operable is only limited by the capacity of the hydraulic reservoir located in the pallet.

Abstract: A structure of a pipeline connector is mainly composed of a socket, a restriction ring, a cover ring, a fixed inner pipe, a fixed outer pipe and a stopping ring. The socket is composed of a cone shaped opening and secured with an inner pipe. The opening of the socket comprises a restriction ring and a locknut, with the fixed inner pipe secured within the socket by means of the locknut, the fixed inner pipe and the inner pipe of the fixed inner pipe been inserted through the fixed outer pipe and sleeved with a stopping ring at the end of the inner pipe so as to allow a smooth sliding of the fixed inner pipe and the fixed outer pipe, relatively.

Abstract: An internal combustion engine includes at least one combustion cylinder and a turbocharger with a compressor for a combustion fluid which is introduced into the combustion cylinder. The compressor has a discharge outlet. An air duct is connected with the combustion cylinder for providing the combustion fluid to the combustion cylinder. The air duct has an inlet opening. An air pipe interconnects the compressor with the air duct. The air pipe has a first end connected with the discharge outlet of the compressor and a second end connected with the inlet opening of the air duct. The second end includes an outwardly projecting shoulder. A flange disposed around the second end of the air pipe includes a recess capturing the shoulder therein and an axial face attached directly with the air duct.

Abstract: A fluid conduit expansion joint has a first tube section and a second tube section in which the inner diameter of the first tube section is greater than the outer diameter of the second tube section. A portion of the second tube section is slidably disposed within the first tube section, in a telescoping type arrangement. The first and second tube sections are held spaced apart by packing material which is arranged to form a fluid type seal between the first and second tube sections.

Abstract: A drainage system for emptying a holding tank of a vehicle includes upright telescopic members for attachment to the vehicle outlet. Ninety degree elbows are joined in a swiveled manner and are carried by the upright tubular members and are in communication with inclined telescopic tubular members terminating in communication with the inlet of a sanitary waste system. Couplings of the present system include bayonet inlets having multiple O-rings in place thereon for sealing engagement with a bayonet outlet. The upright telescopic tubular members permit positioning of the inclined tubular members at an incline to ensure optimal drainage. Additionally the upright tubular members permit the inclined tubular members to be swung about an upright axis to facilitate attachment to a sanitary system inlet. A modified form of the system includes an elbow equipped with a bayonet inlet with multiple O-rings for coupling with the vehicle horizontal outlet.

Abstract: A fitting is provided for joining to a smooth exterior periphery of a tubular conduit with a seal member sealing therebetween. The fitting has a tubular body with a central passage for receiving the tubular conduit. The central passage defines a central axis for the fitting and has a tapered opening, a threaded section, a seal section and a stop which circumferentially extend coaxially about the central axis. An annular shaped seal member extends from the seal section for sealingly engaging the exterior periphery of the tubular conduit. The tapered opening of the fitting provides an entrance to the central passage which is sized for receiving and end of the tubular conduit having an oval shaped periphery, and then rounding the exterior periphery such that annular shaped seal member will sealingly engage the exterior of the tubular conduit. The seal section is disposed between the tapered opening and the threaded section of the central passage.

Abstract: An expansion coupling, for connecting a first conduit to a second conduit, has a housing that is open at opposite ends thereof. The conduits and at least one end of the housing have sealing means that comprise an interior sealing ring and an exterior sealing ring that has a larger external and internal diameter than the interior sealing ring. The interior sealing ring has a radially inwardly directed sealing surface and the exterior sealing ring has a radially outwardly directed sealing surface. The sealing rings have sealing side surfaces for sealing against adjacent sealing rings and the sealing rings are radially displaceable with respect to each other to accommodate for any misalignments of connected conduits.

Abstract: A telescopic pivotal pipe joint for use in a fluid transporting pipe system such as water transporting pipe system installed under the ground is disclosed. The joint has a first pipe member including a semi-spherical inner peripheral face, a second pipe member including a semi-spherical pipe portion projecting radially outward and sidable along the semi-spherical inner peripheral face of the first pipe member, the second pipe member being slidably engaged within the first pipe member, and a third pipe member telescopically sidable in an axial direction and engaged on a straight pipe portion co-extensive with the semi-spherical pipe portion of the second pipe member. The semi-spherical pipe portion of the second pipe member defines an annular groove, into which one end of the third pipe member comes into engagement along the axial direction when the second pipe member and the third pipe member are contracted maximally relative to each other.

Abstract: An adjustable riser is provided for coupling an irrigation sprinkler to a water supply line, wherein the riser is adapted for quick and easy longitudinal adjustment to variably select the elevational position of the sprinkler relative to ground level. The adjustable riser comprises a pair of telescopically interfitting inner and outer riser tubes coupled respectively to the sprinkler and to the water supply line. The inner riser tube has a keyway formed on the exterior surface thereof, and the outer riser tube carries at least one key protruding into and engaged with the keyway. In the preferred form, the keyway comprises at least one recessed channel defined by an axially spaced succession of part-circumferential segments interconnected at opposite ends by axial segments extending in opposite directions.

Abstract: An extensible cleaner rod includes an outer tube and an inner tube telescoped in the outer tube, and then a water guide tube of a smaller diameter than that of the inner tube is provided in the outer tube. Then the volume of water flowing through the cleaner rod is always definite, no matter how large the outer tube and the inner tube may be. So the extensible cleaner rod may be used easily not adding a large weight to the whole cleaner rod even by enlarging the diameter of the outer tube and the inner tube for strengthen it.

Abstract: A telescoping seal uses a split resilient gasket surrounding the slide pipe at the bottom of the tank. The gasket has a slanting outer side, mating with a slanting seat in a lower flange which is attached to the bottom of the tank. An upper flange compresses the gasket downward into the seat, causing the gasket to be compressed inward around the slide pipe, thereby providing a watertight seal which still permits the vertical sliding motion of the slide pipe.

Abstract: Disclosed is a duct assembly for conducting compressed air from a fixed component to a component that is movable with respect to the fixed component. The duct assembly contains at least two telescoping, tubular conduit sections with seals between adjacent sections. An upstream transitional joint rotatably interconnects the outermost conduit section with an air supply duct, while a downstream transitional joint rotatably interconnects the innermost conduit section with an air delivery duct. A tubular double-wall spaced apart from the inner surface of the innermost conduit section forms an annular airspace between the tubular double-wall and the innermost conduit section. A second double-wall forms a second annular airspace between its downstream end and the upstream transitional joint. The annular airspaces created by the double-walls protect the seals.

Abstract: There are disclosed two embodiments of a connector for sealably connecting the lower ends of an upper riser member and an upper conduit on the lower ends of an upper riser pipe and upper auxiliary line joint, respectively, to the upper ends of a lower riser member and a lower conduit on the upper ends of a lower riser pipe and upper conduit thereof, respectively. At least one of the conduits includes a telescoping sealed joint which is of such construction as to permit differential movement between the riser and the auxiliary line.

Abstract: A supporting shaft of a sunshade of the present invention includes plurality of supporting rods separately disposed together to form a main shaft, an upper connecting cap and a lower connecting cap separately connected to upper ends and lower ends of the main shaft respectively as the securing means, a sliding block movably fitted around the main shaft. Stretching ribs provided to stretch open or fold close the sunshade are pivoted to the sliding block. Plurality of bent pipes are separately coupled to corners of the sunshade so that the supporting rods, separated, can be coupled thereto to change the sunshade into a tent with the supporting rods supporting the sunshade from the corners.

Abstract: In a quick-fitting pipe union for sealingly connecting two pipes (1 and 4) comprising an annular cage (8) fitted on the outer side of the one pipe (4) and fitted inside with an annular helical spring (9). When the pipes (1 and 4) are slid axially into one another, the spring latches over a flange (2) of the receiving pipe (1). The annular cage (8) with the sealing means (6/7) is fitted after the enlargement (5) is loosely slidable relative to the receiving pipe.

Abstract: A flexible pipe connector including a first cylindrical member, a second cylindrical member to be inserted into the first cylindrical member, an annular restricting groove defined in an inner peripheral face of the first cylindrical member, an annular attaching groove defined in an outer peripheral face of the second cylindrical member and having a shorter length than the restricting groove in a direction of cylinder axis, a retaining member radially expandably and detachably fitted to the attaching groove for coming into contact with an end face of the restricting groove in the cylinder axis direction so as to restrict range of relative movement between the first and second cylindrical members in the cylinder axis direction. The outer peripheral face of the second cylindrical member and the inner peripheral face of the first cylindrical member are provided with a radial opposing distance therebetween determined so as to allow insertion and withdrawal of the retaining member.

Abstract: The height adjustable standpipe includes multiple, cylindrical, coaxial drain sections of gradually diminishing cross section. The sections preferably alternate between brass and PVC plastic, and have grooves adjacent the ends of the PVC sections for retaining O-rings that serve as gaskets between the two adjacent sections. Thus, for example, a PVC section would preferably have one or two peripheral grooves on the outer surface near the end that passes inside of the next adjacent brass section, and the same PVC section would have one or two peripheral grooves on the inner surface near the opposite end, through which passes another brass section. Each of these peripheral grooves includes a rubber O-ring seated therein and projecting therefrom to form a water-tight seal with the adjacent surface of the brass section engaged by that end of the PVC section. A travel stop mechanism is employed to limit the travel of the sections of the adjustable standpipe with respect to one another.

Abstract: Disclosed is a slidable duct assembly for conducting air from a fixed component to a component that is movable with respect to the fixed component by conducting air from a fixed supply of air, associated with the fixed component, to an air delivery member, movable along with the movable component. The duct assembly contains at least two metallic telescoping, tubular conduit sections for rotatably interconnecting the air supply to the air delivery member, and a pair of electrically-conductible, spaced-apart slide bearings positioned between the inner surface and the outer surface of each adjacent conduit section to electrically bond the duct assembly.

Abstract: An expandable baton includes a plurality of sections adapted to be stowed in a nested, collapsed position. The sections may be opened by swinging the baton in a whipping action into a locked extended position. Each of these sections may be made of similar or dissimilar materials, with the tip section having at least a portion being made of a relatively high mass material to preserve strike force when used in a whipping motion and at least one other section being made of a lightweight material to reduce weight of the overall baton. The lightweight section includes lock zones of increased thickness for enhancing the strength and durability of the lightweight section and preserving the overall strength and durability of the assembled baton. The increased material in the lock zones permits the lock zones to be of a greater functional length than prior art single thickness baton sections.

Abstract: A compensator 11 comprises a housing 14 and a sliding ram 13, which is displaceable along a sliding seat 17. The sliding ram 13 includes a flow channel portion 21, which transitions into an elbow bend 30, which, in the operating state, i.e., when hot polymer melt flows through the compensator, is congruent with a further flow channel portion 20. The two flow channel portions 20, 21 have flanges 28 and 29 at their end faces for the installation of the compensator 11 at a bend in a melt line through which a polymer felt flows, to compensate for linear expansions of the melt line due to the increased temperature.

Abstract: Disclosed is a pressurized, slidable duct assembly for conducting compressed air from a fixed component to a component that is movable with respect to the fixed component. The duct assembly has at least three metallic, telescoping, tubular conduit sections rotatably interconnecting an air supply duct to an air delivery duct. An upstream slide bearing and a spaced-apart downstream slide bearing are disposed between each pair of opposing inner and outer conduit section surfaces. Disposed between each set of upstream and downstream slide bearings is a seal to substantially prevent the escape of air from the duct assembly. A stop located between each seal and downstream slide bearing axially positions the conduit sections when the duct assembly is fully extended.

Abstract: A telescopic extension wand of a vacuum cleaner includes an inclined tab provided at the inner wall of a sleeve for biasing a retaining plate having retaining teeth underside to engage with a plurality of retaining teeth of a middle tube or an inner tube so the middle or inner tube can be relatively positioned. A projected boss provided at the inner wall of the sleeve can be guided by a guiding slot disposed at an outer wall of the external tube or middle tube. When the sleeve is rotated to a preset position, the inclined tab as well as the retaining plate can be controlled to engage or disengage the middle tube or inner tube with/without engagement between the retaining teeth therebetween. By this arrangement the middle tube and inner tube can be repositioned.

Abstract: A travel joint provides economical manufacture, installation, service, and operation thereof. The travel joint substantially reduces the number of parts potentially exposed to corrosive fluid, eliminates cavities wherein such corrosive fluid may become trapped, and substantially reduces the number of dynamic and static seals required for its operation. Additionally, a torque transmitting member is utilized to prevent torquing through threaded service breaks in the travel joint. In a preferred embodiment, a travel joint has a tubular upper case, a torque collar rotationally and axially coupled to the upper case, a tubular mandrel axially slidably received in the upper case and torque collar, and rotationally coupled to the torque collar, and an adapter which axially and radially inwardly retains the torque collar.

Abstract: A refrigerant compressor arrangement is disclosed, having a compressor which is arranged in a housing and which has a suction connection, the housing being provided with a suction connector which is joined to the suction connection by way of a suction channel. In such an arrangement, it is desirable to increase the opportunity of the compressor to move, that is, to reduce noise, without at the same time having to accept a deterioration in efficiency. To that end, at its housing end the suction channel is in the form of a telescope tube which is capable of being telescoped into the suction connector.

Abstract: A sleeve heater has a pair of end tubes centered on a common axis and having axially confronting and spaced inner ends, an electrically resistive helicoidal heating coil centered on the axis, and at least one tubular center tube coupled to the end tubes at the inner ends thereof and axially and angularly slidable on at least one of the end tubes so that the length of the heater can be adjusted. The coil has a pair of end sections of relatively shallow pitch in the end tubes and a center section of relatively steep pitch between the inner ends. Thus with this system the user can alter the length of the sleeve heater.

Abstract: An apparatus for exhausting engine combustion products or the like from an enclosed work space. The apparatus includes an extensible tube assembly adapted to be suspended in the enclosed work space with its upper end connected to an overhead conduit structure. The lower end of the assembly has a tailpipe adaptor for connection to an engine exhaust pipe. The assembly has two or three telescoping tubular sections formed of flexible, helical corrugated tubing, and these are movable between a retracted position and an extended position wherein the lower end may be moved to a variety of positions for connection to an engine exhaust pipe.

Abstract: An actuating slide assembly for an automatic assembly machine, wherein the slide assembly includes telescoping fluid conducting conduits interconnected between the slide body and associated end block mounted for relative reciprocal movement relative to the slide body and a sealing arrangement for effecting a fluid tight seal between the relative movable telescoping conduits and associated slide body and end block. The sealing arrangement includes a sealing cartridge and associated O rings circumscribing one of the telescoping fluid conduits intermediate the opposed ends thereof to prohibit any leakage between the relative movable telescoping conduits and the associated slide body and a second sealing arrangement connecting the outer end of a telescoping conduit to its associated end block in a manner to provide a leakproof seal therebetween.

Abstract: An inline pipeline expansion joint is provided having a first sleeve with the outer end adaptable to attach to a pipe. A second sleeve also has an outer end adaptable to attach the attachment of a pipe, the inner end of the first sleeve being co-axially and telescopically received within the second sleeve. A seal is interposed between the interior of the first sleeve and the exterior of the second sleeve. A tubular liner is positioned within the second sleeve, one end of the liner being telescopically received within the interior of the first sleeve to thereby reduce turbulence of fluid flow through the expansion joint. The first sleeve has an external annular circumferential flange with openings therethrough that receive circumferentially spaced alignment rods that are secured at one end to the second sleeve so that as the first sleeve moves telescopically with respect to the second sleeve, the two sleeves are prevented from rotating with respect to each other.

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: An expandable baton includes a plurality of sections adapted to be stowed in a nested, collapsed position. The sections may be opened by swinging the baton in a whipping action into a locked extended position. Each of these sections may be made of similar or dissimilar materials, with the tip section having at least a portion being made of a relatively high mass material to preserve strike force when used in a whipping motion and at least one other section being made of a lightweight material to reduce weight of the overall baton. The lightweight section includes lock zones of increased thickness for enhancing the strength and durability of the lightweight section and preserving the overall strength and durability of the assembled baton. The increased material in the lock zones permits the lock zones to be of a greater functional length than prior art single thickness baton sections.

Abstract: A coupling device especially adapted for the joining of polyethylene underground irrigation hoses, having a female portion, a male portion and a lock cap, the female portion having a threaded nipple for insertion into a hose end, the male portion likewise having a threaded nipple for insertion into a second hose end and several lugs that fit into grooves in the lock cap, enabling the male portion to be pulled out of the assembly for a limited distance, for ease of fitting into difficult hose coupling situations. The presence of the lugs prevents rotation of the male portion with respect to the cap until the male portion is pulled out of the assembly far enough that the lugs are pulled past the end of the locking cap.

Abstract: A vehicle assembly includes a tractor unit having an exhaust system and a trailer unit having a duct system. The vehicle assembly further includes a hitch assembly for connecting the trailer unit to the tractor unit. Moreover, the vehicle assembly includes a first conduit having a first passageway extending therethrough, the first passageway being in fluid communication with the duct system. The vehicle assembly additionally includes a second conduit having a second passageway therethrough, the second passageway being in fluid communication with the exhaust system, wherein a portion of the first conduit and a portion of the second conduit are positioned in a coaxial orientation with respect to each other so that the first conduit is movable in an axial and rotational direction with respect to the second conduit when the tractor unit is connected to the trailer unit by the hitch assembly. A method for transferring exhaust from the tractor unit to the trailer unit is also disclosed.

Abstract: An improved flow-through washing and scrubbing brush handle for interconnection at one end to a source of pressurized water such as a garden hose and connectable at the other end to flow-through type scrub brush or the like. The device may include structure for varying water flow therethrough for delivery into the scrub brush and further includes a telescoping structure which releasably secures a selected overall length between its sliding inner and outer tubes. Unique sealing arrangements also prevent water leakage anywhere along the device, including from between inner and outer tubes.

Abstract: A coupling for connecting a pair of pipe ends together. The inventive device includes a main body having a mounting aperture for securing to a first pipe end and a hollow interior which receives a telescoping tube therewithin. A seal is releasably positioned within a circumferential seal mounting groove formed along an interior surface of the main body and engages a seal mounting groove formed along the telescoping tube during a positioning of the telescoping tube within the main body. Once engaged to the seal, the telescoping tube can be slidably positioned within the main body to desired position, with the seal precluding a passage of fluid across a juncture of the telescoping tube and the main body. The telescoping tube can be extended from the main body to couple with a second pipe end positioned a predetermined and fixed distance away from the first pipe end to fluidly couple the pipe ends together.

Abstract: An axially extendible conduit that includes an elastic conduit member and an actuator means. The elastic conduit member extends from a first terminal end to a second terminal end. The actuator means encircles the elastic conduit member. The first terminal end of the elastic conduit member is attached to a fixed end of the actuator means. The second terminal end of the elastic conduit member is attached to a ring member of the actuator means. The first terminal end of the elastic conduit member includes an integral gasket or sealing surface for providing a dustless seal with an abutting apparatus. The second terminal end includes an integral seal means for providing a dustless seal with an abutting receptacle. Selective actuation of the actuator means moves the ring member from a retracted position to an extended position. The actuator means may be a single acting or a double acting type of linear actuator. The inside diameter of the elastic conduit member may be uniform or tapered.

Abstract: A portable collapsible drum stick set comprising: a drum stick having at least one handle section and at least one movable section. Each section is formed in an elongated cylindrical configuration with two ends. The drum stick includes a handle section having a hollow interior with one open end and one closed end. Each end includes coupling devices. At least one movable section has a first end and a second end. Each end includes coupling devices. A first end of a movable segment includes an impact tip. Each movable section has a smaller outer diameter than the handle section. Each movable section is adapted to be coupled within the handle section or another movable section having a larger diameter. The coupling devices of the ends of each segment permit securing of the apparatus in an extended or collapsed configuration as desired by a user.

Abstract: An arrangement for the extraction of harmful gases from workplaces, the arrangement (1) exhibiting a carrier arm system (9) having at least two arms (19, 20, 21) connected telescopically with each other so that the carrier arm system (9) can be given different lengths, whereby the carrier arm system (9) is swivelable around a horizontal spindle (17) so that it can be swivelled in a vertical direction and placed in different positions between a downward-directed, preferably substantially vertical end position and an outward-directed preferably substantially horizontal end position.