Abstract: A coupling for joining two tubes is manufactured of a material different from the material of the tubes. The coupling includes two parts, which can be coupled to each other. Each part includes a body with an axial bore for receiving an end of the tube. The bore has an inner wall including a ring. The ring is made of a material which can adhere to the material of the tube. Two tubes made of different material can thus be coupled and uncoupled.

Abstract: A connector for corrugated pipes or rods includes a housing (2) having an open end (3) for insertion of a pipe or rod into a bore (5). A pair of resilient locking members or fingers (9) are formed in the housing wall and include projections (10) which extend into the bore (5). The projections are so shaped as to lock into a single valley of the pipe or rod corrugations to prevent withdrawal of the pipe or rod. Also disclosed are methods of molding the connector in which the fingers (9) are held and/or forced outwardly from the mold during withdrawal of a central core which forms the bore (5) to avoid damage to the fingers by the core.

Abstract: An arrangement for radially expanding a tubular gasket includes a sliding sleeve and a compression sleeve. The sliding sleeve is formed of a thin membrane of relatively rigid material, such as nylon, hypalon or polyester. The sliding sleeve is positioned adjacent an inner surface of that portion of the tubular gasket to be expanded. The compression sleeve is disposed immediately adjacent the sliding sleeve such that the sliding sleeve serves as a slip plate for the compression sleeve when the sleeves are expanded against the inner surface of the tubular gasket. The sliding sleeve may be attached to or integrally molded into the inner surface of the tubular gasket. Another aspect of the invention involves forming the compression sleeve so as to allow it to be locked in any one of a plurality of expanded positions.

Abstract: The connector assembly includes a clamp having a segmented latch ring radially disposed therein and mating hubs on tubular members to be connected. A downwardly facing shoulder of the clamp engages the upwardly facing shoulder of an end hub on one of the tubular members. The segmented latch ring includes a plurality of latch segments having a T-slot for receiving actuator screws which, when rotated, cause the latch ring segments to move radially inward to engage a downwardly facing shoulder on an end hub of the other tubular member. Upon actuation, the hubs are compressed together for connecting the tubular members.

Abstract: A pipe connecting device for detachably connecting two tubes into a support to be used in a floor lamp, the pipe connecting device comprising two bushes respectively fastened in two tubes at the connecting ends thereof in a flush manner, the bushes each having a curved locating groove extending from a longitudinal guide groove thereof, and a pipe connector for connecting the two bushes together, said pipe connector having a circular outward flange at the middle and two unitary pins projecting from an outer wall surface thereof at right angles, wherein the two tubes can be detached from each other when the guide groove on either bush is aligned with each other, or firmly connected together when said two unitary pins are respectively engaged into the locating grooves on the two bushes.

Abstract: A setter for a water meter comprises a pair of L-shaped pipes which are positioned in reversed relationship with their horizontal legs connected between a water supply line and a water distribution line. The horizontal legs are clamped in side by side relationship to vary the distance between the vertical legs. Adjustment of the clamp permits the setter to accept meters of different size. All joints are threaded, thereby avoiding the use of solder and the consequent danger of lead contamination.

Abstract: A tube coupling assembly particularly suited for ultra-high vacuum applications comprises a pair of coupling components having through passages and abutting end faces. Each end face includes an annular continuous rib or bead. A threaded coupling nut acts to drive the ribs into sealing engagement with the opposite sides of flat annular sealing washer gasket positioned between the end faces. To prevent relative rotation between the end faces and the sealing gasket, as well as to prevent torque transmission to related system components, protrusions are provided which engage the coupling components to produce a driving connection between the gasket and/or the two coupling components prior to engagement of the ribs with the gasket. Also, a resinous plastic bearing washer is used between the coupling nut and the associated coupling component to reduce torque transmission during make-up.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure, and a clamp fastened to one of the ends of the hose with the fastening structure for substantially circumferentially and radially inwardly clamping the one end onto a member that has been inserted into the one end, the clamp having end projections for being toggled together to circumferentially enlarge the clamp and hold the clamp out of its clamping condition and for being released from each other so as to be circumferentially moved apart from each other as the clamp circumferentially shrinks into its clamping condition by the natural spring force of the clamp, the fastening structure comprising a single spot of adhesive disposed between and against the clamp and the hose at a point on the hose that is located substantially diametrically opposite the point on the hose where the end projections of the clamp are adapted to be toggled together.

Abstract: A dryer duct assembly employs two universal elbow components and at least one flexible component. The flexible component has ends capable of connecting to another flexible component or to a universal component without the use of other devices such as hose clamps to secure connection. Each elbow has ends capable of attaching either to the wall opening or the dryer, in addition to attaching to the flexible component in the same manner as the flexible components may attach to each other. The elbow has an outer portion resembling the outer portion of a quarter-toroid, and a square type inner portion. The outer portion is made of a pair of mirror image hemi portions connected at adjacent flanges. The inner portion has an L-shaped plate with flow-through orifices in each leg of the L.

Abstract: A frangible fluid conduit fitting particularly suitable for servicing aircraft wherein the fitting is attached to an aircraft service bulkhead coupling. The fitting consists of two parts, one attached to the supply hose and the other attachable to the bulkhead coupling. The fitting parts are maintained in a sealed assembly relationship by a frangible connector having two separate frangible sections. One frangible section fracturing and releasing the fitting parts under excessive bending forces while the other frangible structure releases upon excessive tension forces being imposed upon the fitting.

Abstract: A fluid line connector fitting is provided which has first and second generally tubular members, one end of the second member being slidably receivable within the first member. Releasable locking means are also provided to prevent withdrawal of the second member from the first member. The releasable locking means are releasable by the action of a release means which reacts to longitudinal movement of the second member toward the first member.

Abstract: An attachment to an existing sweep of a seeding device is provided for additional dispensing of fertilizer. A protection tooth on the leading face of the attachment can be placed at a desired depth of its lower, free end to selectively adjust the level at which the fertilizer is deposited.

Abstract: A flexible duct assembly having a thin peripheral wall formed with helical, i.e., sprial, ribs and adjacent grooves or valleys, the apex of each rib and valley advancing helically with axial extension of the duct, and a rotary joint on at least one end of the duct to relieve the torque otherwise resulting from the helical advancement.

Abstract: A refractory pipeline having ceramic pipe sections with joints therebetween located at areas where in which there are the greatest temperature differences in the pipeline. Adjacent pipe sections are connected together by shoulders at the ends of each such section, the shoulder of one pipe section being radially outside the shoulder of an adjacent section. A further pipe section is pushed over the joint so as to form a gastight seal by defining a space in communication with a borehole through the one shoulder and a peripheral groove in the other shoulder. A pressure cushion is provided in the space by applying a barrier medium under pressure to the space and thereby through the borehole to the peripheral groove.

Abstract: A flexible non-metallic coupling comprising an outer ring member having an internal bore with a pair of `O` rings carrying internal inserts slidable and rotatable within the bore, each insert being secured to a pipe end by a shape memory alloy ferrule and being retained in the bore by a nut.

Abstract: A quickly attachable longitudinally split coupling structure to connect a pair of pipe ends for a leak proof connection, the coupling structure requiring only a tapping tool for installation or removal.

Abstract: A connector for slender piping members is disclosed. A spacer, seal rings and a bushing are inserted into the end of one piping member to be connected. The leading end portion of the one piping member is fitted in the outer circumference of the bushing. The end portion of the other piping member to be connected is pushed into the axial core of the bushing. An annular flange portion formed on the outer circumference of the other piping member is held in abutting engagement with an annular wall of a socket body, which in turn is abutted against the front face of the bushing. The circumferential wall portion of the one piping member is clamped by stepped oblique walls inside the connector body. The socket body has a plurality of elastic pawl walls projecting obliquely in the connecting direction. An annular wall formed integrally with the pawl walls is engaged by a retaining wall of the connector body.

Abstract: A device is disclosed for hermetically coupling two smooth tubes of the same diameter disposed end to end, particularly for coupling two elements of the exhaust pipe of an engine, such as those of automobile vehicles. A bush in one piece comprises a longitudinal slot provided with two radial assembly lips and surrounds the opposite ends of the two tubes on which it is clamped by a screw or a bolt traversing the radial lips. The bush presents two frusto-conical ends located on either side of a cylindrical central portion intended to be mounted astride the zone of connection of the two tubes and each lip of the longitudinal slot comprises at least one rigidifying element extending between said lip and each of the corresponding frusto-conical ends of the bush.

Abstract: A self-locking connector comprising first and second tubular fittings, the first fitting having an annular ramp and a threaded end adjacent to the ramp, and the second fitting having an annular shoulder adjacent to one of its ends. A nut is rotatably mounted on the second fitting and is threaded to the threaded end of the first fitting. The nut has a flanged end which is adapted to engage the shoulder on the second fitting to bring the two fittings into axially aligned mating and sealing relationship as the nut is tightened on the first fitting. A resilient collar is interposed between the ramp on the first fitting and the nut. The collar has longitudinal slots in the forward end thereof which engage the ramp in locking relationship as the nut is tightened onto the threaded end of the first fitting. The adjacent edges of the nut and of the collar have mating ramps, which each ramp having an angle greater than the helical angle of the threads of the first fitting and of the nut.

Abstract: In a face seal fitting between two conduits, one conduit is provided with an annular groove in which a two-piece ring makes a sliding fit. The ring is coated with a diamond low friction coating which facilitates sliding of the ring in the groove. The ring assembly performs the function of a flange and is engaged by a threaded coupling nut. As the coupling nut is turned to engage a second coupling nut and draw the conduits together, the nut also engages the two-piece ring which slides in the groove thereby reducing torque.