Abstract: An inboard/outboard drive arrangement and specifically an improved exhaust joint therefor wherein at least one of the rigid conduits of the exhaust system is provided with a projection to engage and restrain a hose clamp which may be released and inadvertently dropped so as to prevent loss of the hose clamp into an inaccessible area.

Abstract: A joint mechanism for connecting easily and tightly thin-wall stainless steel pipes (1) with an annular bead (6) at an end, which includes a joint sleeve (2) having a pair of annular recesses (7) at opposite ends and a central enlarged collar portion (9); a pair of coupling nuts (3) with an inclined shoulder (13) on the inside; and a pair of conical disc springs (5) with a distinctly colored outside (5a) mounted between the central enlarged collar portion and the coupling nuts. When the coupling nuts are threaded over the joint sleeve completely, the conical disc springs are compressed between the central enlarged collar portion and the coupling nuts making the distinct color of the conical springs invisible, thus indicating that the coupling nuts are fully tightened.

Abstract: A pipe connector device for interconnecting first and second pipe elements using a retention member removably secured to the first pipe element by load elements. The retention member is secured to the second pipe element by pipe threads or a second retention member can be secured to the second pipe element by load elements and the first and second retention members threaded together. A seal is extended along a portion of the length of the first and second pipe elements adjacent to an end portion of each of the pipe elements to prevent leakage. This provides a fluid-tight seal which is relatively independent of any pressure exerted between the first and second pipe elements by the retention member.

Abstract: A well casing suspension system comprising a casing hanger assembly with an expandable, multiple shoulder, split load ring that is radially expanded into supporting position in a mating groove in a wellhead housing by contact with a previously installed annulus packoff.

Abstract: A pressure ring combination for sealing the inverted stack of a membrane roof to a waste pipe or other drainage member. The pressure ring combination includes a ring member that is movable between a contracted position and an expanded position, and a keeper member for keeping the ring member in the contracted position until it is desired to expand the ring member. The pressure ring combination can be easily inserted into the interior of the drainage member with a portion of the inverted stack positioned between the pressure ring combination and the interior of the waste pipe or other drainage member while the ring member is in the contracted position. The keeper member can then be removed from the ring member to allow the ring member to expand and to securely seal the portion of the inverted stack to the interior of the waste pipe or other drainage member.

Abstract: A quick-release radial clamp for fitting over and clamping a hose onto a rigid fitting. The clamp has a split ring with an inner and outer surface. The split in the ring extends in the axial direction of the ring and forms two abutting ends. A stretched elastomeric sleeve is placed upon the outer surface of the ring and is held in that position by the ring as long as the shape of ring is held by the abutting ends. A quick-release mechanism is provided at the ends for disengaging them from their abutting positions, thereby permitting the stretched sleeve to recover and contract. This contracts the rings as well by causing the ends to slide past each other. This clamping contraction is accomplished quickly and easily and provides a sure clamp.

Abstract: The invention relates to a joint for connecting an elastically-deformable hose (14) and a rigid tube (22) having a smooth cylindrical outside surface. The tube (22) has a radial projection (26) on its outside surface which constitutes an abutment for the end of the hose (14) and also an anchor point for a clamping ring (28). The invention is applicable to mounting rubber hoses to rigid water inlet and outlet fittings on heat exchangers in motor vehicles, in particular.

Abstract: The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is formed from two, male and female parts each having a bore, the male part bore being tapered to provide the cam surface. The male and female parts are assembled with a pair of annular surfaces on the respective parts spaced apart by an edge or projection on one of the surfaces and ultrasonic vibration is applied to soften the ridge to cause the surfaces to weld together and to allow two other opposed annular surfaces to come together and be welded by said ultrasonic vibration to weld the two parts together at two spaced annular regions.

Abstract: An injection valve for a mixture-compressing internal combustion engines which is retained in the mounting bore in the suction pipe by way of a sealing ring. In order not to damage the sealing ring during the insertion of the injection valve into the mounting bore of the suction pipe, an axially displaceable sleeve is proposed according to the invention which slides on a cylindrical section of the injection valve. The sleeve includes a conical forward section that surrounds the sealing ring. During the installation of the injection valve, the sleeve is supported at the walls of the suction pipe and guides the sealing ring into the mounting bore without contact with the edges of the mounting bore.

Abstract: A clamping device for connecting a branchpipe to a main pipe buried underground, has a main body with a lower side having a curved surface for engaging the main pipe and, at the same time, is provided with a connection port for a branched coupling. Arms are supported by sections of the body on both sides of the connection port cand on the upper side of the main body. These arms are extended downwardly so as to hold the main pipe and move for free rotation with respect to the support sections. Arm retainers are idly supported at the centers by bolts which are screwed into threaded holes provided on a midplane of the support sections of the main body. The retainers have pushing sections formed on both their ends for pushing the arms from above, at external sides of the support sections. Only a small working hole must be excavated for connecting the branched pipe to the main pipe since the clamping device can be positioned and tightened from ground level.

Abstract: The present invention relates to a repair sleeve comprising a flexible, hose-like main part (1) and a spiral spring (2), which, when the sleeve is mounted in a pipe line, pretensions the hose-like main part (1) into sealing engagement against the inner wall of the surrounding pipe. The invention also includes an insertion device (4) for the repair sleeve, said device being a cylindrical body (5) mounted on wheels. At the ends of this body (5) there are latching means (7, 8) which are releasably fastenable to the ends of the spring (2). The latching means comprise a pin (7) biased to thrust out through the wall of the body (5) and into holes at the ends of the spring (2) wound round the body (5). Both pins (7) are simultaneously releasable with the aid of a linkage system (11, 13, 14, 15) on actuating the system. Eyes or cages (8) accommodating the ends of the springs are also associated with the pins (7).

Abstract: A composite connector assembly for easily and quickly making a connection between a flexible hose and an inlet fitting such as on a heat exchanger. The connector includes an elongated nipple-shaped fitting having an enlarged bead on its free end over which the hose end is extended during a connection. A cylindrical housing encircles the fitting and supports a radially outwardly distorted snap ring and associated spacer device maintaining the distortion so that the end of the hose can pass through the ring's center as it extends over and along a central body portion of the fitting. The housing includes a reduced diameter portion to engage the distorted snap ring to limit axial movement thereof as the hose is pushed over the body portion of the fitting. Resultant engagement between the axially inserted hose end and the parts of the snap ring spacer cause disengagement of the snap ring spacer from the snap ring allowing it to spring radially inward about the hose.

Abstract: End members for flexible connectors for bicycle pumps are provided, a first end member is fixed to one end of a flexible tube and to be connected to a valve of a tire and the second end member is to be connected to the other end of the flexible tube for connection to a pump. The first end member is made of one piece of molded construction and, at one side of a middle zone has an anchoring stub which carries a cap at its free and by means of at least two frangible bridges. At the other side of the middle zone the first end member has means for linking the connector with the valve of a tire. The middle portion also has resiliently deformable portions for holding the connector in a bore in the handle of the pump. For assembling the first end member with the tube, the cap is fitted over an end portion of the tube and, the bridges are severed and the anchoring stub is engaged inside the flexible tube.

Abstract: This disclosure relates to a quick connect coupling including a tubular socket or receptacle part having an internal groove formed therein, a tubular nipple or insert part having an external groove formed thereon, and a snap ring. The nipple is insertable into the socket and when so inserted the two grooves are radially aligned. The snap ring is mounted in and extends between the two grooves to lock the socket and the nipple in assembled relation. Prior to final assembly, the snap ring is positioned in the socket groove, and in the space within the socket groove and around the snap ring is applied a relatively viscous fluid. This fluid, which may be a grease, holds the snap ring in the desired position in the groove prior to and during assembly, and it also serves as a lubricant on the ring which facilitates the assembly of the parts.The disclosure also describes the method of assembly of the coupling.

Abstract: The pipe coupling has an annular flange member having a tapered inner surface portion and a plurality of holes therethrough. Bolts project through the holes. A pipe-engageable collet is mounted in the flange member and has a tapered outer surface portion engaged with the tapered inner surface portion. An annular, retainer element engages a surface of the flange member from which the bolts project and overlaps an outer peripheral portion of the seal back-up member and has a plurality of holes therethrough which are in substantial alignment with the holes through the flange member. The bolts project through the holes in the retainer element whereby the bolts and the retainer element are retained in position by virtue of their mutual interengagement and the seal back-up member and collet are retained in position by virtue of the engagement of the retainer element with the seal back-up member.

Abstract: A tubular body includes an enlarged counterbore extending inward from at least one end to receive the pipe end of plastic pipe to be coupled. For coupling the received pipe, a tubular stiffener is seated against an inward radial shoulder of the counterbore and extends in a slip fit inward of the pipe end. A spacer retainer ring of generally U-shaped section surrounds the pipe end at the shoulder location while juxtaposed outward thereof are a complementary chamferred gripper ring and locking ring arranged in a ramping relation to each other. Inward threading of an end nut applies sealing pressure against a contained gasket while forcing the locking ring axially inward until stopped by engagement against the back face of the spacer ring. Concomitantly, the gripper ring is collapsed inward by the ramping force of the locking ring as to effect a controlled grip relation with the pipe periphery thereat.

Abstract: A pipe coupling includes a nut in which a collet, a back-up member and an anti-extrusion washer are retained by means of an axially split ring which is detachably engageable in a peripheral groove in the back-up member and engaged in a recess in the nut. The anti-extrusion washer has an extrusion press fitted into the member. This construction permits the various parts to be easily assembled into the nut without the risk of damaging the ring or the screw-threading in the nut.

Abstract: The present invention relates to means for interconnecting a tube or the like to a further member. It further relates to such means wherein it is also desired to provide a sealed interconnection between the tube or the like and the further member. It particularly relates to interconnecting a tube or the like to a wall member and equally relates to interconnecting a pair of tube members together in axial alignment. The cross-section of the aforementioned tubes may, for example, be round or rectangular.

Abstract: A hydrocarbon loading buoy has a connection element rotatable in a bearing supported by the buoy. When a riser pipe or conduit is connected to the connection element the pipe and element can rotate or swivel relative to the buoy. A lock mechanism on the buoy is operable to lock the connection element to the buoy so that the connection element is supported independently of the bearing. With the connection element locked the bearing can be serviced, or removed, while the buoy is in operation. In a preferred form, the lock mechanism includes wedges which move radially and engage a sloping surface of the connection element to move it axially into clamping engagement with the buoy.

Abstract: A pipe coupling comprises a first pipe-encircling member having an outwardly extending peripheral flange, a sealing ring disposed within the first member to provide a seal between the member and a pipe, a second pipe-encircling member having an outwardly extending peripheral flange, a pipe-gripping collar within the second member having an external frusto-conical surface so arranged that, upon axial movement of the second member towards the first member, the collar is contracted radially to grip the pipe, and a number of axially extending clamping bolts passing through registering holes in the outwardly extending flanges, so that by tightening the clamping bolts the second member is moved axially towards the first member, causing the collar to grip the pipe, without relative rotation between the members.

Abstract: Underwater flow lines, control lines and electrical conduits are connected to mating hubs on an underwater manifold center or other production unit by utilizing hydraulically powered means for pulling the lines toward the mating hubs and aligning them therewith, lock-down means actuated from the surface being utilized to lock the lines in axial alignment with the hubs, and a seal member being lowered from the surface and inserted between the facing hubs, with a split clamp being used to draw the hubs into sealing engagement with the seal means.

Abstract: Pipe with socket end provided with an annular groove chamber containing a sealing ring supported by a support ring, which support ring compresses the sealing ring less than the final inserted spigot end. The support ring closes the groove and the sealing ring or the closed space is provided with lubricant.

Abstract: A conductor tieback connector for connecting a conductor to a subsea wellhead includes a downwardly extending funnel. Two bearing rings within the funnel interact with the outside surface of the wellhead to generate bending forces to force the tool in alignment with the wellhead. Thereafter a separate lockdown nut secures the connector to the wellhead without rotation of the conductor.

Abstract: A rigid plastic elbow has a fluid passage formed therethrough from a relatively straight refill hose connecting portion and through a reduced length relatively straight overflow tube discharge portion. The refill hose connecting portion is connectable to an end of a flexible refill hose directing water from a water level control valve in a toilet flush tank. A flexible metal clip secured to the overflow tube discharge portion mounts the mounting member on the upper end of a vertical overflow tube of the toilet flush tank with the overflow tube discharge portion directing water from the refill hose downwardly into the overflow tube upper end.

Abstract: A coupling for attachment to the end of a pipe comprising: a tubular housing open at opposite ends, one end being adapted to fit over the outside of a pipe end to which the coupling is to be attached and the other end being adapted to have a valve connected thereto; a clamping device within said housing for clamping the housing to the outside of the pipe end, the device including a plurality of circumferentially-arranged tapered radially adjustable segments and a mechanism for moving the segments radially inward into edge-to-edge abutment with each other so as to form a frusto cone having its larger end facing the pipe end, each segment at its wider end being in sliding sealing engagement with the inner surface of the housing and each segment at its smaller end having at least one gripping surface which faces radially inward so as to form a circumferentially continuous gripping surface when the segments are in their radially inward position, there being a space between the outer surfaces of the segments and t

Abstract: A hose coupling is provided primarily for irrigation applications and features a quick-connect capability ideal for use with the flexible irrigation systems such as are used on sugar cane plantations and elsewhere requiring relatively frequent assembly and dismantling of the system, the coupling being characterized by a tubular body portion having a nipple over which a flexible irrigation hose is pulled, there being a collar on the connector body which by virtue of a pair of helical ramps is forced over the end of the irrigation hose locking it onto the nipple when the collar is twisted. Being unrestrained other than by the helical ramp structure, the collar can be pulled axially to directly engage the irrigation hose, or twisted to utilize the mechanical advantage inherent in the helical ramps so that dual alternative operative modes are inherent in the design.

Abstract: A two-piece compression fitting comprises a driving screw and a symmetrical sleeve adapted to be pre-assembled to a threaded receptacle for later connection of coupling tubing. One end of the driving screw is provided with a thin-wall extension for accepting a central cylindrical portion of the sleeve in a press-fit manner so as to provide and maintain co-axial alignment of the inner bores of the screw and sleeve whereby the coupling tubing can be easily inserted therethrough.

Abstract: The present invention provides a latch assembly carriable on a tubing string extendible into a subterranean well, the latch assembly being selectively engageable between upper and lower sections of the tubing string. The latch assembly comprises an outer housing and an inner body, with latching means carried on one of the housing and the body for selectively securing the latch apparatus to the lower section. Latch engaging means are carried on the other of the housing and the body and the lower tubing section for selective co-engagement between the latching means, the lower tubing section, and one of the housing and the body. Piston means are on one of the housing and the body and have a piston head with first and second piston chambers between the piston head.

Abstract: A firehose coupling device is provided for fixedly positioning and holding in place a set of opposed lugs on one coupling member of a firehose connection to permit quick and if desired one man coupling or uncoupling of the connection. The device includes a channel member, preferably with diverging leg portions, each leg having at least one cut out portion along the corresponding side edges of each leg so that the opposed lugs on one member are fixedly held in position and the other member may be rotated with respect to the first member.

Abstract: Marine riser conduit section coupling means adapted to withstand high riser tension and bending loads in deep sub sea well drilling and production operations by preventing stress concentrations has upper and lower coupling members, each being mounted to an associated marine conduit section, and fastening means for securing the coupling members together wherein the outer surface configuration for each said coupling member comprises an effectively continuous arcuate surface extending circumferentially about substantially the entire outer surface of each coupling member from one axial extremity thereof adjacent the associated conduit section to an opposite extremity thereof adjacent outer marginal areas of the associated member flange. The fastening means include threaded bolts and means for preventing their inadvertent removal from a connector flange when disconnected from the mating flange.

Abstract: A liquid tight fitting for liquid tight flexible metal conduit which provides higher unit sealing pressures and improved liquid tight sealing by providing line, rather than surface, contact at critical points. The body member of the fitting makes line contact with a flared lip of the ferrule. The lip of the ferrule makes line contact with the sealing ring. The vector forces which create the seals have components in the directions required to most effectively and efficiently produce the seals. The sealing ring may be made symmetrical, is discontinuous, has an inside bead for sealing against the conduit and may include wings for retention in the gland nut prior to assembly of the fitting on a conduit end.

Abstract: A pipe coupling including cooperating male and female threaded elements and the female threaded element has a recess containing a pipe-gripping collar which has cause to contract radially on to the pipe upon tightening of the male element relative to the female element.In order to facilitate storage and transport of the coupling components, a washer is provided which is resiliently engageable with the thread of the female element and serves to retain the pipe-gripping collar within the recess of the female element. This washer is preferably a metallic thrust washer which has a peripheral rubber flange which provides the resilient engagement with the thread of the female element.

Abstract: A backflow preventer in a fluid conduit permits flow from the inlet to the outlet of the preventer when the inlet is pressurized and prevents reverse flow upon termination of flow through the preventer. An apertured diaphragm between the inlet and outlet closes a valve seat between the outlet and a vent passage when the inlet is relatively pressurized. A check member upstream of the diaphragm closes the diaphragm aperture if the outlet is relatively pressurized and maintains the diaphragm aperture closed upon pressurization of the inlet until after closing of the vent valve seat. A second vent communicates with the interior of the preventer and is closed by a portion of the diaphragm upon pressurization of the interior. A relief port in the chamber includes a temperature responsive element that opens the relief port once ambient temperature reaches a preselected level. The inlet includes an internally threaded sleeve within the housing that may be secured to an externally threaded fluid hydrant.

Abstract: The temporary airtight connection of a connection hose of an air pump with a tube valve is effected by a fixation clamp presenting fastening means for connecting pieces.

Abstract: A quick connect-disconnect pipe coupling especially suitable for fiberglass pipelines including a male adaptor having a split ring located in a groove machined therein and bonded to one end of a pipeline. The split ring is held in the contracted position in the groove by means of a pair of restraining pins. A female sleeve is provided for receiving the male adaptor. The male adaptor is inserted into the female section, whereupon the wall of the female section "knocks out" the pins in the male section allowing the split ring to expand to its natural position and fits closely in a groove provided in the internal surface of the female section.For disconnect the split ring is compressed by inserting a tool through the wall of the female section to recompress and close the split ring and reinserting the restraining pins. The female section is then slid over the male section.

Abstract: One or more radially projecting tabs are provided on a discontinuous ring for retaining the ring in proper association with a body member in spite of movement or vibration of the assembly. The tab, or tabs, mate with a grooved section of the body member. The groove may comprise a thread. The ring may be internal or external to the body member. The retaining tab will project radially outward or inward when the ring is to be internal or external, respectively, to the body member. The tabs have an axial thickness of the order of 25 percent, or less that of the ring. To provide secondary internal retaining means, a portion of the ring may be cut from an oversize ring so that a stress is formed when the ring is closed for inserting the ring in an internal opening. When a ring is to be used external to a body member, a simple cut may be made in an undersize ring so that a stress is formed when the ring is opened for placement external to the body member.

Abstract: A separable and at least partially pressure balanced safety pipeline connector. The connector is arranged to be included in a pipeline and provide a pressure balanced weak point whereby the connector will separate at a predetermined tension load but which will be insensitive or substantially insensitive to operating line pressure. It includes a housing having one axial end adapted for connection to the pipeline and with the other axial end open. The connector includes a pipe extension member having one axial end adapted for connection to the pipe-line for transmission of line fluids therethrough and with the other axial end arranged for being telescopically received coaxially in the housing in sealed relationship therewith. A shear disc is mounted between the housing and extension member for restraining the same against axial separation in response to axial tension forces applied thereto.

Abstract: The opposite ends of at least one pair of tubular members, for instance steel tubes, are closed by inserts which have radial portions overlying end faces about the open ends of the tubular members. The tubular members are then axially aligned with each other while maintaining the radial portions of the inserts spaced from each other, whereafter the tubular members and the spacing therebetween are covered with a jacket of plastic material. Subsequently thereto, the jacket is severed intermediate the annular portions of the inserts to thereby obtain two discrete tubular elements.

Abstract: A unitary hose connector made of plastic material and having multiple locking means mounted through the back panel of an automatic washing machine without the use of tools or additional fastening means in either of two locked positions. In the first or "shipping" position the connector is positively locked to the back panel of the machine almost entirely within the machine cabinet. In the second or "installed" position the connector is positively locked to the back panel with an end portion of the connector projecting out of the cabinet to be accessible for coupling with a water inlet hose from an external water source.

Abstract: The present invention relates to a pipe fitting comprising a cylindrical body, a radially deformable locking piece, a seal and a compression ring which is maintained fast with the body, while being free to slide axially with respect thereto. The ring defines with the body an annular space in which the seal and the locking piece are maintained fixed so that the fitting forms a unit.

Abstract: A packer and tension slip assembly is disposed in the annular area between two coaxial drilling casings having different diameters. The coaxial casings are secured one to the other by placing the inner casing in tension with the outer casing. A packoff unit is attached to and completes the assembly forming an pressure tight seal in the defined annulus. The packer and tension slip assembly also serves to center one string in respect to the other and can be retrieved when no longer required, and subsequently reused.