Abstract: ABSTRACT OF THE DISCLOSURE: An object of the present invention is to provide a silent chain drive device that can minimize loss of strength and wear of link plates, as well as prevent the chain from lifting up to achieve better power transmission efficiency. The silent chain drive device includes a silent chain designed for inside flank meshing/inside flank seating, and a sprocket with sprocket teeth. The plurality of link plates in the silent chain, which each have a pair of teeth, are configured to make contact with the sprocket teeth only at the inside flanks of each pair of teeth when the silent chain wraps around the sprocket and meshes with all of the sprocket teeth.

Abstract: An integrated power distribution apparatus for a cooking robot, including: a bottom plate (1); a motor fixing base (2) fixedly mounted on one side of a surface of the bottom plate, a power motor (3) fixedly mounted on one side of the motor fixing base, a control motor (4) fixedly mounted on a surface of the motor fixing base, two shaft couplers (5) respectively arranged on one sides of the power motor and the control motor, a fixed support (6) fixedly mounted on the surface of the bottom plate, two rotation output shafts (7) respectively arranged on a surface of the fixed support, four power output gears (8) sequentially arranged from left to right on one side of the rotation output shaft, a placement base (22) fixedly mounted on the surface of the bottom plate, and bearings (23) respectively arranged on two sides of an interior of the placement base.

Abstract: A control device includes a mechanical system for moving a mechanical slide. The control device further includes a first electric drive configured to receive a position target value and to drive the mechanical system to move the mechanical slide to the position target value. The control device also includes a second electric drive configured to receive the same position target value and to drive the mechanical system to move the mechanical slide to the position target value. The two electric drives are provided and configured to jointly and simultaneously drive the mechanical system and, upon the other electric drive failing, to drive the mechanical system alone and, upon their own failure, not to obstruct the mechanical system from then being driven only by the other electric drive.

Abstract: A screw actuator includes a primary ball nut, a secondary nut, and a ball screw. The primary ball nut and secondary nut are both in threaded engagement with the ball screw, in which the inner functional plays of the screw actuator are configured such that in normal operation the threads of the secondary nut are in contact with the ball screw threads.

Abstract: A multi-component gear wheel (10) for a gear assembly of a brake actuator, in particular of a motor vehicle includes a sleeve-shaped support body (100) made of a first plastic material and a gear wheel body (200) firmly integrally formed onto the support body and made of a second plastic material, which has a lower stiffness and higher elasticity than the first plastic material. The gear wheel body (200) has outer toothing (210) and inner spindle-nut toothing (230) for receiving a spindle (50). The spindle-nut toothing (230) is at least partially axially spaced apart from the outer toothing (210) in one direction. The support body protrudes axially at least partially into the region of the helical gear toothing and into the region of the spindle toothing (230).

Abstract: The disclosure relates to a threaded nut of a ball screw, the threaded nut having an inner sleeve made of sheet metal and an outer sleeve made of sheet metal, which are nested axially in one another to form a nut sleeve. The nut sleeve is provided with a thread, which is formed helically about a longitudinal axis of the threaded nut and which forms, on the inner circumference of the nut sleeve, a ball groove wound helically about the longitudinal axis of the threaded nut and, and on the outer circumference of the nut sleeve, a helically wound outer ridge.

Abstract: The disclosure relates to a threaded nut of a ball screw drive. The threaded nut includes an inner sleeve made of sheet metal and an outer sleeve made of sheet metal. The inner and outer sleeves are nested axially in one another to form a nut sleeve. A thread of the nut sleeve is helically wound about a longitudinal axis of the threaded nut and forms a ball groove on the inner circumference of the inner sleeve. The outer sleeve is provided along the thread with at least one outer hole into which material of the inner sleeve is molded.

Abstract: A drive wheel, comprising a drive disk, which has a traction-means connection region; and a shaft connection region, which can be rotated relative to the traction-means connection region against damping action of a torsional vibration damping device having a spring accommodation chamber. The spring accommodation chamber is filled with lubrication medium and is closed via a cover. The cover has a groove facing the drive disk and containing a sealing means.

Abstract: A machine component includes a base portion and strain gauges. The base portion extends in a direction intersecting a central axis. The strain gauges are provided on the base portion and arrayed in a circumferential direction about the central axis. Gap regions are provided between adjacent strain gauges in the circumferential direction. The gap regions include gap regions arranged at angular intervals of approximately 90° about the central axis.

Abstract: An electric drive power transmission system box assembly is provided having stepped pin positioning and a mounting method of the electric drive power transmission system box assembly. The box assembly includes a housing shaft string assembly, stepped pins, a first housing, and a first bearing. The housing shaft string assembly includes a housing and a shaft string supported on the housing. Each stepped pin includes a matching section and a guide section, the diameter of the matching section is greater than the diameter of the guide section, a tail end portion of the matching section is fixed in a fixing pin hole of the housing, the first housing is mounted and fixed to the housing shaft string assembly under the guide of the guide section, and a rear end of the shaft string is supported on the first housing by means of the first bearing.

Abstract: Breathing systems and methods for a gearbox is described. Embodiments preferably create a closed system for air within the gearbox. As an operating gearbox warms the air or fluid within, or an altitude change causes air to expand or contract, increased pressure can result and air can escape through tubing to a cannister. The cannister can receive the expanding air in an impermeable cavity that is proximate to a bladder open or partially open to an exterior environment. Air can press on the bladder, expanding the cavity and shrinking the bladder until a pressure equilibrium is reached. As operation of the gearbox is lowered or powered off, or another altitude change occurs, the air can cool and/or retract into the gearbox. The bladder can then expand and press on the cavity until equalizing the pressure within the cannister.

Abstract: A device includes a case; a first rotating body that has at least a part immersed in the oil in an oil bath; a second rotating body disposed in the case at a position not immersed in the oil in the oil bath; a plate; a first wall portion provided on the plate between the first rotating body and the second rotating body; a second wall portion provided above the first wall portion in a gravity direction and extending toward a direction away from the first rotating body; and a fourth wall portion provided between the first rotating body and the second rotating body and extending in a vertical direction on the plate, wherein the first wall portion is provided on a first rotating body side of the plate, and the fourth wall portion is provided on a second rotating body side of the plate.

Abstract: A planetary transmission includes a transfer device for transferring a supply medium. First and second transmission parts rotate relative to one another, with the transfer device having an annular groove on a surface of the first transmission part or of the second transmission part. The transfer device has bores distributed over a periphery. The first transmission part includes a separate bush which points towards the second transmission part and has a sealing groove with a sealing ring axially on both sides of the annular groove. The bush is arranged rotationally fixed on a rest of the first transmission part and designed to float in an axial direction with sufficient play in order to tilt out of a coaxial relative position with respect to the first transmission part and/or to the second transmission part to the extent of a relative movability of the respective sealing ring within the associated sealing groove.

Abstract: In this shift device, a worm, a detent gear, and a rotation shaft (including a detent pin) of a lever are rotated by a motor being driven, causing the lever to pivot. At all shift positions of the lever, the detent pin urges the detent gear toward a side of a meshed position between the detent gear and the worm. This enables rattling between the detent gear and the worm to be suppressed at all shift positions of the lever.

Abstract: In a shift device, a magnetic sensor detects a rotational movement position of a lever. A lower light guide of the lever guides light from LEDs. The LEDs and the magnetic sensor are provided at a circuit board. Accordingly, a number of components may be reduced.

Abstract: A method of controlling an axle assembly. The method includes executing a speed synchronization mode and operating a clutch actuator to shift a clutch from a neutral position toward an engaged position. The method may also include executing a low torque synchronization mode when the clutch cannot be shifted from a neutral position to an engaged position within a first predetermined period of time.

Abstract: Techniques for controlling an automatic transmission of a vehicle include receiving a set of operating parameters each relating to a rock cycling maneuver of the vehicle, the rock cycling maneuver comprising a plurality of consecutive garage shifts of the transmission, determining whether the set of operating parameters satisfy a set of entry or exit criteria to/from a rock cycling mode of the transmission and enter/exit the rock cycling mode based on the determination, while not in the rock cycling mode, controlling the transmission based on a first set of calibrations for the transmission, the first set of calibrations being optimized for normal garage shifts of the transmission, and while in the rock cycling mode, controlling the transmission based on a different second set of calibrations for the transmission, the second set of calibrations being optimized for the rock cycling maneuver.

Abstract: A method for controlling the acceleration of a vehicle includes: receiving a demand for acceleration from an operator input device; applying an initial transmission ratio to provide a vehicle acceleration whilst maintaining a current engine speed; and applying a loading transmission ratio to increase the output from the engine, wherein the loading transmission ratio is determined using the vehicle acceleration.

Abstract: A park lock mechanism for a motor vehicle includes a park lock pawl for selectively forming a form-locking connection to a lock region, the park lock mechanism having a locking mode, in which the park lock pawl is moved into a locking position, and a driving mode, in which the park lock pawl is moved into a driving position. The park lock pawl is pivotable about a pawl axis from the locking position into the driving position. A locking pawl spring device preloads the park lock pawl into the driving position. A locking pawl actuation device has a locking pawl actuator with a locking pawl actuator shaft and has a locking pawl cone, the locking pawl cone being movable along a cone axis by the locking pawl actuator. The cone axis is parallel to the pawl axis. The locking pawl cone is movable along the cone axis between a cone driving position and a cone locking position.

Abstract: The invention relates to an actuator having a drive (2) driving an input shaft (1), a first actuation element (3) in operative connection with the input shaft (1) for actuating a shifting mechanism, and a rotatably mounted rotation element which can be driven by means of the input shaft (1) and has a first control cam (7) for controlling the actuating position of the actuator, which control cam is operatively connected to the first actuation element (3) for actuating the shifting mechanism. According to the invention, the actuating position of the actuator can be determined inductively by means of a receiving or holding element (10) for a position indicator (11), said receiving or holding element being operatively connected to the rotation element (4).

Abstract: An improved star shift detent mechanism for an All-terrain vehicle. The improved star shift detent mechanism has a neutral-position ridge element with a trough formed therein, wherein the trough has a greater arc length and larger radius of curvature than the prior art for improving the finding of the neutral position. Relatedly, the remaining ridge elements of the improved star shift detent mechanism have the same spacing as the prior art but have smaller amplitudes, thereby enabling a smoother and faster selection of gears.

Abstract: A volume control actuator including a non-contact cylinder. An installation frame has a predetermined height and size. First and second installation spaces are defined in upper and lower portions of the installation frame, respectively. A pressing unit is vertically disposed on top of the installation frame to move a reciprocating rod in the first installation space reciprocating stroke movements. A fluid pipe is provided in the second installation space and connected to an installation plate to obtain a path through which fluid flows. Both ends of a rubber cylinder are fixed to a top surface of the installation plate and one end of the reciprocating rod. The rubber cylinder is provided in the first installation space so that the volume of the rubber cylinder changes in an expanding and contracting manner in response to the stroking of the reciprocating rod, thereby causing fluid in the fluid pipe to flow.

Abstract: A method of coating a piston ring comprises: providing at least first and second piston rings in a coating chamber; spacing the piston rings apart, so that the first piston ring is spaced from and not in contact with the second piston ring, and applying a ta-C coating to the piston rings, whereby the spacing between the adjacent piston rings enables simultaneous coating of upper, outer and lower piston ring surfaces of the first and second piston rings during rotation of rings in a plane co-planar with the coating beam. Piston rings are obtained comprising a substantially hydrogen free ta-C coating of 0.1 to 8 microns on at least their lower surface.

Abstract: A sealing member and a toilet flange assembly are disclosed. The sealing member is made of an elastic material, and includes an upper ring portion, a connecting ring portion and a lower ring portion that are connected in sequence from top to bottom. The upper ring portion is fitted on a flange member. Upper and lower ends of the connecting ring portion are connected to the upper ring portion and the lower ring portion, respectively. An inner wall of the connecting ring portion is connected with a toilet drain pipe. The lower ring portion has a diameter less than that of the upper ring portion. An outer wall of the lower ring portion is connected with a ground drain pipe. The toilet flange assembly can solve the problem of fitting between toilet drain pipes of different diameters and ground drain pipes.

Abstract: An extrusion molded gasket and a method of making such a gasket comprising one or more annular sections configured to engage a door rim of an appliance tub, one or more annular sections configured to engage the appliance tub, and one or more sealing sections disposed therebetween, wherein the gasket comprises at least one thermoplastic vulcanizate comprising at least 15 wt %, by weight of the thermoplastic vulcanizate (TPV), of a cross-linkable ethylene-based elastomer and within a range from 5 to 30 wt %, by weight of the TPV, of at least one thermoplastic, the TPV having a Shore Hardness within a range from 35 A to 100 A (or 50 D), and wherein the TPV is extrusion molded into the gasket

Abstract: A sealing device includes a metal retaining ring annular around an axis, a seal lip annular around the axis, and an electroconductive lip annular around the axis. The seal lip is fixed, on an outer peripheral side, to the retaining ring. The seal lip includes a seal extending obliquely relative to the axis, forming an end on an inner peripheral side, and including a first inner peripheral surface. The first inner peripheral surface contacts an inner-peripheral-side member. The electroconductive lip is fixed, on an outer peripheral side, to the retaining ring. The electroconductive lip includes a contact point extending obliquely relative to the axis, forming an end on an inner peripheral side, and including a second inner peripheral surface. The second inner peripheral surface contacts the inner-peripheral-side member. The seal lip and the electroconductive lip are spaced from each other at least at the seal and the contact point.

Abstract: A valve disc for a butterfly valve. The valve disc includes a disc body, a main groove suitable for receiving a seal element, and an introduction groove. The disc body comprises first and second faces, an outer periphery, and at least one engagement means configured to receive a shaft for coupling the valve disc to a valve body of the butterfly valve. The main groove extends along the outer periphery to form a continuous groove. The introduction groove has a centreline (CL2) and extends from a groove mouth opening in one of the faces of the disc body to an intersection with the main groove. The main groove is so dimensioned and configured that a seal element can only be inserted into or removed from the main groove via the introduction groove. Optionally, the valve disc is a single continuous body of material.

Abstract: Disclosed is a slit valve gate. The slit valve gate includes a base portion configured to couple to a slit valve actuator. The slit valve gate further includes a seal portion coupled to the base portion. The seal portion is configured to create an airtight seal between the slit valve gate and a sealing surface of a slit valve opening. The slit valve gate further includes a clamp portion coupled to the base portion. The clamp portion retains the seal portion at least partially between the clamp portion and the base portion.

Abstract: A valve cartridge includes a top part that is penetrated in the center by a spindle which is rotatably and axially slidably mounted in the top part and which includes an axial through-hole to allow water to flow therethrough; the spindle actuates a valve, by which the flow rate of the water through the through-hole can be controlled.

Abstract: A valve including a valve body having a fluid inlet and a fluid outlet, the valve body comprising a first valve element and a second valve element arranged in a housing. A gap is formed between the valve elements, the first valve element being conformed as a sleeve with an inner surface that tapers at least in sections towards the fluid outlet, the second valve element being conformed as a cone mounted in the sleeve, with the same inclination as the inner surface of the sleeve so as to form the gap. Additionally, an annular space open to the fluid outlet is formed between the sleeve and the inner surface of the housing. The sleeve has through holes towards the annular space and the cone has through openings towards the fluid inlet, the sleeve and the cone being axially adjustable relative to one another.

Abstract: Ball valve having a housing which comprises at least one inlet opening and at least one outlet opening, between which a regulating chamber is provided, having a valve which is arranged in the regulating chamber and comprises at least one spherical control surface with at least one passage that connects one inflow opening to an outflow opening of the valve, having a connection opening in the housing, which opens into the regulating chamber into which a connection housing can be inserted, wherein at least one seal is provided between the connection housing and the connection opening, and the connection housing comprises a shaft feedthrough having a shaft mounted therein by means of which the valve can be controlled, wherein the valve with the at least one spherical control opening is insertable through the connection opening into the regulating chamber.

Abstract: A valve device includes a housing and a cylindrical valve body. The housing defines: an inflow port; a first outflow port and a second outflow port which are opened apart in a circumferential direction and respectively have first and second opening widths; and an accommodation chamber. The valve body is arranged in the accommodation chamber to open and close the first and second outflow ports and includes: an internal passage; a first outflow communication port which expands in one direction in the circumferential direction continuously with a region facing the first outflow port, and has an opening width larger than the first opening width; and a second outflow communication port which expands in the other direction in the circumferential direction continuously with a region facing the second outflow port, and has an opening width larger than the second opening width.

Abstract: A control valve is provided, which comprises a valve body and a valve element. The valve element can be driven to rotate, the valve element is provided with an external communicating cavity and a first cavity, and the valve element comprises a first partition plate, a first valve element shaft and a first reinforcing rib; the first reinforcing rib comprises a first end portion, a second end portion and a first main body portion in a height direction of the valve element and the first main body portion is connected between the first end portion and the second end portion, and there is a height difference between the first end portion and the second end portion.

Abstract: A multi-port valve includes a valve housing and a valve core. The valve housing is provided with a plurality of outer ports, at least part of which is arranged at an axial end of the valve housing. The valve core is provided with a plurality of inner ports, at least part of which is arranged at an axial end of the valve core. A plurality of flow channels extends through the valve core, whereas the flow channels are fluidly separated from one another inside the valve core. The plurality of the flow channels includes at least two cross-channels intersecting with each other in a projection plane perpendicular to a rotation axis of the valve core. Each of the flow channels communicates with two of the inner ports. At least part of the inner ports is aligned and communicated with the corresponding outer ports in response to the valve core rotating to a desired position as regarded to the valve housing.

Abstract: A knuckle and support structure for a reverse buckling rupture disc is described.

Abstract: A valve connector for a high pressure air pump includes an outer sleeve having opposite first and second ends. The outer sleeve includes a coupling hole extending along a rotating axis and a receiving space intercommunicating with the coupling hole and located adjacent to the first end of the outer sleeve. An abutting member includes an abutting end received in the receiving space and a connecting end opposite to the abutting end. The abutting member includes an inlet passageway intercommunicating with the abutting end and the connecting end. An outer periphery of an airtight member about the rotating axis slidably abuts and is in airtight contact with an inner periphery of the receiving space. The airtight member is movable toward the first end or the second end. The airtight end face is configured to be biased toward the first end by air current entering from the inlet passageway.

Abstract: Disclosed herein a check valve structure and a method of assembling the same. The check valve structure disposed in a bore of a modulator block having an inflow passage and a discharge passage to control one-way flow of oil includes a filter member configured to be press-fitted into the bore to filter foreign substances contained in oil flowing in from the inflow passage; and a valve assembly configured to be press-fitted into the bore to allow oil passing through the filter member to flow in a direction of the discharge passage; wherein the bore includes a first bore and a second bore having a diameter larger than that of the first bore, and the filter member is press-fitted into the first bore communicating with the inflow passage and the valve assembly is press-fitted into the second bore communicating with the discharge passage.

Abstract: Modular valve assemblies are disclosed. In embodiments the modular valve assemblies include a first frame and a second frame. The first frame includes a fluid inlet and first mount, and the second frame includes a fluid outlet and a second mount. A connection element extends between the first mount and the second mount. At least a first modular block and a second modular block are disposed on the connection element and position between the first and second frame. The first and second modular blocks may each be rotatable about the connection element between a use position and a maintenance position. In the use position, a composite flow path extends from the fluid inlet, through a first fluid flow path in the first modular block, through a second fluid flow path in the second modular block, and to the fluid outlet. Rotation of the first or second modular block to its maintenance position moves the first or second fluid flow path, respectively, out of the composite flow path.

Abstract: An example valve includes: a first port; a second port; a third port; a poppet configured to be subjected to (i) a first fluid force by fluid of the first port acting on the poppet in a proximal direction toward a poppet seat, and (ii) a second fluid force by fluid of the second port acting on the poppet in a distal direction; a pilot piston configured to be subjected to a pilot fluid force by a pilot fluid signal received at the third port; a check spring applying a spring force on the poppet in the proximal direction; and pilot spring applying a pilot spring force on the pilot piston in the proximal direction.

Abstract: A sprinkler water flow switching device is assembled in a movable seat of the water sprinkler with a partition dividing into an impeller chamber and a gear chamber. The partition is provided with a first water channel and a second water channel for directing water from the gear chamber to the impeller chamber, so as to control the direction of rotation of the impeller in the impeller chamber. The water flow switching device includes a projection member, a seesaw plate and a driving lever in the gear chamber; the driving lever can oscillate and actuate the seesaw plate to move on the projection member, then the seesaw plate can move as a seesaw to selectively close the water inlet of the first water channel or the second water channel, thereby changing the rotation direction of the impeller and the water spray direction.

Abstract: A utility control system that includes a switch control unit for selectively controlling a utility. The switch control unit may include a visual indicator configured to illuminate a first color when a switch selection mechanism is in a first position to indicate the on state of the utility and a illuminate a second color when the switch selection mechanism is in a second position to indicate the off state of the utility. Control of the utility may be accomplished through generating low-voltage pulses that cause a latching solenoid to latch to a first state or a second state. The utility system may also be provided as a retrofitting kit for a light switch.

Abstract: A controller is configured to operate a flow control. These configurations may operate an actuator that is part of an industrial valve. In one implementation, the controller may include a solenoid valve that couples with the actuator. The controller may utilize feedback from the valve, for example, sensor data, to identify changes that it needs to make to the solenoid valve. These changes can direct flow to different sides of the actuator.

Abstract: In a segmented ball valve for low noise and anti-cavitation applications, a replaceable cartridge is fixed inside and retained by stem and end post. The segment has a machined cylindrical bore with a slide-fit noise cartridge, enabling field replaceability with minor effort & without need of welding or fasteners. The replaceable cartridge also enables use of a fully cylindrical cartridge with greater pressure reduction stages compared to welded-on noise plates on the segment. The segment has a flattened front face resulting in lower Fd enabled by dual flow path in lower openings values thereby attaining higher noise attenuation where the cartridge is not required. The curved plates of the low noise and anti-cavitation cartridge enable: expanding flow resulting in non-impinging jet streams thereby achieving higher noise attenuation in one direction; and converging flow in the opposite direction resulting in reduction of flow energy, and the potential for cavitation for liquids.

Abstract: A manipulator device to apply modules around a pipeline during assembly has two jaws mobile between an open and a closed position and configured to house the respective portions of the module, and an articulated mechanism having a plurality of degrees of freedom to place the jaws in a loading position and in a position wherein the jaws are aligned with the pipeline during assembly.

Abstract: Implementations described herein relate to a variable routing clamp. In some implementations, a routing clamp may include a rigid body defining a channel. The routing clamp may include a flexible cushion that is configured to be inserted into the channel, where the flexible cushion includes two or more through holes extending through the flexible cushion that are configured to receive flexible lines, and where distances between the two or more through holes satisfy a threshold. The routing clamp may include a rigid cap that is configured to be fastened to the rigid body over an opening of the channel, where the rigid cap includes one or more lips that are configured to restrict movement of the flexible cushion after the flexible cushion is inserted into the channel.

Abstract: To alleviate stress exerted on a thread portion of a threaded steel pipe or tube during use to prevent fatigue fracture, there is provided a threaded steel pipe or tube having a female thread portion on an inner peripheral surface of at least one end, wherein a maximum value of residual compressive stress at a position of 0.4 mm in a depth direction from a thread bottom of the female thread portion is 100 MPa or more and less than or equal to tensile strength of a material of the threaded steel pipe or tube.

Abstract: A tubing segment is provided for construction of tubing for transporting a fluid, and a tubing connector, tubing for carrying a fluid, the tubing comprising a plurality of tubing segments, a production or injection installation comprising a subsurface well and tubing, methods of manufacturing tubing, methods of connecting two tubing segments, and a method of producing mineral oil or natural gas from a subsurface reservoir, such as a well.

Abstract: A reinforced flexible hose for transporting fluids includes a first load-bearing layer made of a first polymeric material, a second covering layer arranged externally to the first load-bearing layer made of a second polymeric material, and a reinforcement layer interposed between the first and the second layers made of a third polymeric material. The first and the second polymeric materials are thermoplastic elastomers, the third polymeric material being a thermoplastic polymeric material. The first, second and third polymeric materials are mutually compatible, so that the flexible hose can be ground without separation between the first, the second, and the reinforcement layer to obtain a ground mixture consisting of the first, the second and the third polymeric materials.

Abstract: A screw part with an annular cross-section and having a base element that is hollow, cylindrical and at least partially injection-molded from a plasticized polymeric mass containing fibers. The base element includes at least one internal and/or external thread and an inner channel for arranging and/or passing through a conduit system element. The inner channel has at least one sealing section for sealing with the conduit system element and/or at least one support section for supporting and/or guiding the conduit system element and/or at least one retaining section for directly or indirectly locking the conduit system element. An insertion sleeve is arranged in the base element coaxially with the inner channel. The insertion sleeve is at least partially encapsulated by the polymeric mass with the polymeric mass facing radially towards the inner channel and radially away from the inner channel. A process for manufacturing such a screw part.

Abstract: First and second pipe elements are joined end to end by a coupling. The first and second pipe elements have a circumferential groove at an end, and each of the grooves has a floor. A plurality of segments, each having oppositely disposed ends, and a respective connection member positioned at each end, form the coupling. A first end of each segment is connected to a second end of another of the segments such that said segments surround a central space for receiving the second pipe element.