Abstract: A surgical stapling device has an elongated body and a removable loading unit and a securing structure for securing the loading unit onto the elongated body. A guiding ramp guides the movement of the loading unit as it is mounted onto the loading portion. The locking structure has a first position for locking movement of the loading unit and enabling firing rod to engage the loading unit. The locking unit has a second position for allowing the loading unit to be disengaged and removed from the device.

Abstract: A connection between a first tubular member and a second tubular member includes a first tubular end, a second tubular end, a load shoulder member threadable onto the first tubular end, and a nut receivable around the first tubular end and the load shoulder member and threadable onto the second tubular end. The connection also includes a keyway through the load shoulder member and into the first tubular end to receive a key member.

Abstract: A connector assembly for connection of two tubular members without rotation. The assembly includes the pin end of a first tubular member stabbed within the connector end of a second tubular member. A connector nut is threadedly connected or snap locked to the connector end of the second tubular member. The connector nut includes a retaining shoulder cooperating with a beveled shoulder on the pin end of the first tubular member to retain the first tubular member. The assembly includes seals to provide pressure integrity and prevent leaking. Cooperating rotational torque transfer profiles in the first and second tubular members enable operational rotation of the tubular string.

Abstract: A coupling assembly for elongate elements includes a pin having an outward-facing pin surface, and a box having an inward-facing box surface. The pin surface and box surface are configured for mating engagement. At least one bore has a port configured for connection to an injection fluid reservoir as a first opening and a second opening penetrating the pin surface or the box surface. A region of the box surface can include a wall thickness less than the thicknesses of the adjacent box walls. A region of the box surface can also include a material of a lower mod ulus of elasticity than the material of a corresponding region of the pin surface, or vice versa. A region of the pin surface can include a wall thickness which is less than the thicknesses of the adjacent pin walls.

Abstract: Method and apparatus for an improved camlock fitting having outer/inner cam lever which are restrained against unintended opening or rotation by a pivoting locking member which is pivotally mounted onto an axle disposed in a corresponding hole on the cam levers so that the pivoting locking member can be easily pivoted in the vertical plane relative to the cam arms. Each of the outer and inner arms has a pivoting locking member mounted on its underside in a protective housing. The camlock fitting may also have an air vent. Together this provides a safety lock assembly for the cam lock fitting so that when the cam lock fitting is pressurized unbeknownst to the operator and the operator attempts to open the cam lock fitting, the safety lock assembly will prevent operation or complete separation of the male and the female portions of the fitting to prevent inadvertent pressurized discharge of hazardous materials.

Abstract: The invention relates to an annular connection clamp with a first clamping flange (22) which protrudes radially inwards and with an axial counter bearing (24) which is spaced from the clamping flange and which is made of a first and a second half-ring segment (20), each half-ring segment having a first and a second segment end. The first segment end of the first half-ring segment (20) has latching means (281) of a first type, and the second segment end of the second half-ring segment has corresponding latching means (282) of a second type, said latching means being pushed into each other in a tangential direction, thereby being latchable together. The second segment end of the half-ring segment (20) has latching means (282) of a second type, and the first segment end of the second half-ring segment (20) has latching means (281) of a first type, said latching means being pushed into each other in a tangential direction, thereby being latchable together.

Abstract: A universal socket structure includes a female seat, a joint member, at least one engaging member, and an elastic member. A coupling end the female seat is recessed to form an accommodating trough. Two opposite sides of the accommodating trough are formed with grooves extending along an axial direction of the female seat. The female seat has at least one coupling portion. The joint member has one end formed with a spherical head. Two opposite sides of the spherical head has protrusions protruding from an outer periphery of the spherical head. The spherical head is accommodated in the accommodating trough. The protrusions are accommodated in the grooves. The engaging member is disposed in the coupling portion and movable from the coupling portion toward the accommodating trough. The elastic member is disposed in the accommodating trough for pushing and supporting the spherical head to engage with the engaging member.

Abstract: Clamping device includes a clamp frame that is configured to move between an open configuration, in which the clamp frame is configured to receive at least one longitudinal element, and a closed configuration, in which the clamp frame wraps around and holds the at least one longitudinal element. The clamp frame includes a coupling end having an inner surface and a coupling base having an outer surface. The inner and outer surfaces have profiles that form a locked engagement to hold the clamp frame in the closed configuration. The clamping device also includes a secondary locking mechanism that secures the coupling end and the coupling base to each other. The secondary locking mechanism is activated after the clamp frame is held in the closed configuration by the locked engagement.

Abstract: A gas turbine engine duct assembly includes a composite duct body that includes at least one rim. A flanged bracket includes a radially extending portion that defines a flange. An axially extending portion has an inner duct rim recess for accepting a portion of the at least one rim. At least one attachment plate has a projection recess for accepting a projection on the flanged bracket and an outer rim recess for accepting a portion of the at least one rim.

Abstract: An illumination device having a body with attributes of a swivel/universal socket and/or typical ball-and-socket joint. The illumination device can be releasably coupled to surfaces and illuminate a specified surface by aiming the illumination device without needing to also move the base. Once the illumination device is aimed to illuminate the area of interest, the light body will remain in this position until further user input.

Abstract: Described herein are embodiments of a furnace inlet water collector for an HVAC system. The inlet water collector may include a base having an air intake aperture; an inner wall having a first top end and a first bottom end, the first bottom end provided proximate to the base; an outer wall having a second top end and a second bottom end, the second bottom end provided proximate to the base, the inner wall having a diameter smaller than a diameter of the outer wall; one or more pipe stops provided proximate to the base and between the inner wall and outer wall, a height of the one or more pipe stops extending less than a height of the outer wall; and a drain coupled to the outer wall and in fluid communication with a channel displaced between the inner wall and the outer wall.

Abstract: A fitting assembly containing a fitting, a first plate and a second plate are provided. The first plate has a first plate wall and a first-plate aperture, the first-plate wall being positioned along an edge of the first plate defining the first-plate aperture. The second plate has a second-plate wall and a second-plate aperture, the second-plate wall being positioned along an edge of the second plate defining the second-plate aperture. The fitting assembly having the fitting being sandwiched between the first plate wall and the second plate wall. Also disclosed is a heat exchanger having the fitting assembly as described herein, and a method of forming the fitting assembly.

Abstract: A tubular element of a fall pipe used for the purpose of depositing materials underwater from a fall pipe vessel. The fall pipe element comprises a male and a female coupling part for coupling to another element of the same form. The coupling parts are provided on respectively an outer periphery and inner periphery thereof with an annular flange which is divided in a peripheral direction into segments which leave recesses clear therebetween. For coupling purposes, segments of a male coupling part are placed through recesses of a female coupling part and slid by rotation under segments of the female coupling part. A fall pipe and a method for assembly thereof.

Abstract: A system includes a syringe adapter having a first end and a second end with the first end of the syringe adapter configured to be connected to a first container and the second end of the syringe adapter including a lock member having an open position and a closed position. The system also includes a vial adapter having a first end and a second end with the second end of the vial adapter configured to be connected to a second container and the first end of the vial adapter having a locking surface. The lock member includes at least one projection that extends radially outward. The syringe adapter has at least one corresponding projection configured to engage the at least one projection of the lock member to retain the lock member to the syringe adapter.

Abstract: A connector is provided for connecting a hose coupler to a drain knob. The connector includes a base plate, an appendage, and a lateral projection. The base plate includes an opening configured to allow engagement of the hose coupler to the base plate at a first side thereof. The appendage extends axially from a second side of the base plate and is disposed about the opening. The appendage has a substantially oblong profile in a first plane disposed parallel to the base plate. Further, the appendage has a convex face configured to abut a concave portion of a sidewall of the drain knob. The lateral projection extends radially inward from the appendage. The lateral projection is configured to abut an end face of the drain knob.

Abstract: A threadless pipe coupling (x00) comprises a socket (x01), a plug (x02) configured for being inserted into the socket (x01) in an insertion direction (10), a sealing member (x03) arranged between a circumferential outer surface (x04) of the plug (x02) and a cooperating inner surface (x05) of a circumferential side wall (x06) of the socket (x01), so as to provide a fluid tight seal when the plug (x02) is placed in the socket (x01), wherein the plug (x02) is retained in the socket (x01) by means of a locking member (x07) inserted in a transverse direction through a slot (x08) in the circumferential side wall (x06) of the socket (x01) to engage around the plug (x02) at a location behind the sealing member (x03) as seen in the insertion direction (10). The ends (x28, x29) of the locking member (x07) in the mounted position are located between the outer surface (x04) of the plug (x02) and the circumferential side wall (x06) of the socket (x01) as seen in a radial direction.

Abstract: A locking clip for use with a hose coupling is provided that includes a first member and a second member that grasp and maintain a locking arm of a locking mechanism commonly used in conjunction with hose couplings.

Abstract: A broach style anti-rotation device for connected tubular members is described. In embodiments, the broach tool is inserted into a slot in an outer diameter surface of the pin, and teeth of the broach, which have a successively greater height when moving from the front to the tail of the broach, cut a slot in a surface of the box. Sidewalls of the broach and its teeth engage shoulders of each slot to prevent the rotation of the tubular members relative to each other.

Abstract: A spray shield for the pipe connection flange of pipes carrying hazardous fluids. A band composed of metal or other suitable material encompasses a pipe flange and supports a spray diffusion mesh or device so that any spray of pressurized leaked fluid is coalesced to drops or streams of leaked fluid which descend by gravity for collection rather than being sprayed into the environment in the vicinity of the leaking flange joint. The spray shield band is secured about the flange by an over-center latch mechanism that tightens the band and spray diffusion mesh around the flange connection. A locking pin or lockout device is inserted through aligned holes of the latch mechanism when closed and functions to secure the latch against release and movement from its latched position.

Abstract: An adapter is described for providing fluid to a device from a fluid source. The adapter has a housing with an inlet extending through the housing for connecting the fluid source to the device. The adapter also includes a latching component to secure the adapter to the device. The adapter further includes a tab having embedded magnets in a specific magnet configuration. The device has a sensor capable of detecting the specific magnet configuration. The device can be connected to other adapters, and identifies the fluid source based on the magnet configurations of the adapters.

Abstract: A riser pipe section (4) is disclose for offshore well drilling operations comprising a main tube element (6) having as an extension a male connector element (10) and a female connector element (9) comprising a first series of tenons. At least one auxiliary tube element (7) is secured to the male connector element (10) and to the female connector element (9) so that the main tube element (6) and the auxiliary tube element (7) jointly transmit tensile stresses between the male connector element (10) and the female connector element (9). A locking ring is mounted on the male connector element and the ring comprises a second series of tenons.

Abstract: A method and apparatus used for connecting adjoining conduit segments in oil and gas well operations is disclosed. The apparatus and method discloses use of a receptacle assembly attached to one conduit segment and stinger assembly attached to a second conduit segment. A rotatable wheeled hub threadably joins the stinger assembly to the receptacle assembly. The conduit connection ends of the stinger assembly and the receptacle assembly may be configured to accommodate a variety of common types of conduit connections such as Chiksan, hose, pipe, tubing, casing, flanges, hubs and other conduits for conveying media.

Abstract: A quick connect/disconnect (QCD) system includes a first component and a second component. The first component includes a first body defining a first fluid channel extending between a first end portion and a second end portion and defining a longitudinal axis, a first QCD coupling portion located at the first end portion, a first adaptor coupling portion located at the second end portion, and a first mating portion of a mating assembly operably connected to the first body. The second component includes a second body defining a second fluid channel extending between a third end portion and a fourth end portion, a first threaded coupling portion located at the third end portion, a second adaptor coupling portion between the third end portion and the fourth end portion, and a second mating portion of the mating assembly operably connected to the second body.

Abstract: A system for joining pipe segments, the system including a first pipe connector connected to a first pipe segment, and a second pipe connector threadingly connectable to the first pipe connector, and connected to a second pipe segment. The system further includes a recess in the outer surface of the first pipe connector, and an elongated key having first and second lengthwise surfaces. One of the lengthwise surfaces has protrusions that embed into a transverse surface of the second pipe connector when the key is mounted into the recess. The thickness of the key decreases with distance radially inward from the outer surface.

Abstract: Pipe clamp and method for retaining a tensioning element in a tensioning head of the pipe clamp. The pipe clamp includes a clamp band having a first end with a first tensioning head and a second end with a second tensioning head, a tensioning element guidable guided through the first tensioning head and engageable with the second tensioning head, and a securing element structured and arranged in the first tensioning head to secure the tensioning element against loss and including a spring element structured and arranged to act between the tensioning element and the first tensioning head.

Abstract: Quick release tube systems and methods may allow for components of a switching apparatus to be quickly and easily installed, removed, serviced or replaced without requiring an overhead crane or more than one skilled individual to perform the work.

Abstract: A connection of concentrating solar power plants is described. The connection of concentrating solar power plants has two terminals for coupling respectively with internal metal tubes of two solar pipes to be connected, the two terminals being provided with coupling means for reciprocal rigid mechanical movable coupling.

Abstract: A threaded union for tubulars used for high-pressure fluid applications includes a unitary nut supported by at least two nut retainer segments received under a top wall of the nut in an annular segment retainer groove in one of the tubulars. The nut retainer segments fully support the unitary nut. The nut retainer segments are held in the annular segment retainer groove by securing the nut retainer segments in the segment retainer groove.

Abstract: A bag having two accesses, an inlet and an outlet, both containing closing devices for releasing or stopping the flow of a liquid that flows into or out of the bag. The inlet has a filtering element for retaining particles possibly produced by the coring phenomenon which can occur when the spike of the inlet ruptures the plug of the bottle. Also provided is a safety device used for permanently attaching the bottle to the inlet.

Abstract: A threaded union for tubulars used for high-pressure fluid applications includes a unitary nut supported by at least two nut retainer segments received under a top wall of the nut in an annular segment retainer groove in one of the tubulars. The nut retainer segments fully support the unitary nut. The nut retainer segments are held in the annular segment retainer groove by securing the nut retainer segments in the segment retainer groove.

Abstract: A quick coupling includes a first element and a second element which may be separably coupled. The first element includes a connector for connecting to a user interface, an external sleeve having helicoidal grooves and seats, and a first valved coupling for a first pressure line. The second element includes a hooking ring nut, a plurality of internal pins, a compression spring, a second valved coupling for a second pressure line, and a connector. The second element further comprises a safety ring nut and a plurality of safety pins provided along a circumference of the safety ring nut, the safety pins being configured to axially slide with the safety ring nut. The safety pins are configured to be pushed by the hooking ring nut and the compression spring into the seats of the external sleeve.

Abstract: An anti-rotation key inserts into a pocket formed on an outer surface of a male threaded connector. The key has a lower inner side portion for contact with the base of the pocket. An array of teeth on a lower outer side portion of the key bite into an inner wall of a female threaded connector as the key is forced into the pocket. One of the edges of the key is configured such that a line tangent to the first side edge where it intersects the lower outer side portion will intersect a line tangent to a central portion of the lower inner side portion at an angle less than 90 degrees. Relative motion between the male and female threaded connectors in a loosening direction causes the key to pivot about an engagement of the first side edge with the first side wall and bite more deeply into the inner wall of the female threaded connector.

Abstract: A screwed end connector assembly comprises a threaded connector (1) having a conical end portion (5) for the reception of a mating hose fitting. The connector has a flange (6) which includes at least one arcuate, circumferentially extending, slot (7). A nut (8) for threaded engagement with the connector, for securing a hose end fitting to the conical portion of the connector, has a polygonal exterior (10). A member (11) has an aperture for fitment over and irrotational engagement with the exterior of the nut and includes at least one hole positionable in axial register with the said slot.

Abstract: First and second components can be releasably coupled together with a locking pin having a sacrificial o-ring. The first and second components have respective first and second openings that are aligned with each other and receive the locking pin. The second opening has a square edge located adjacent to a recess in the first opening. The o-ring has an outside diameter greater than the diameter of the square edge and an inside diameter less than the diameter of the square edge when assembled. The locking pin is inside of the first and second openings, with the o-ring inside of the recess. To release the components, the locking pin is moved out of the first opening to shear the o-ring against the square edge.

Abstract: A valve cover assembly for a pump. In an embodiment, the valve cover assembly comprises a first cylindrical member having a central axis and a first throughbore. In addition, the valve cover assembly comprises a second cylindrical member coaxially disposed within the first throughbore and rotatable relative to the first cylindrical member about the central axis between a first position and a second position. In the first position, the second cylindrical member is axially translatable relative to the first cylindrical member. In the second position, the second cylindrical member is axially fixed relative to the first cylindrical member.

Abstract: A clip for a pin that extends from an outer surface of a member, the clip comprising a pin retaining portion and a clamp portion that surrounds the member outer surface, the clamp portion having a pin receiving opening therein adapted to receive the exposed end of the pin, and a pin retaining portion adjacent the pin receiving opening to retain the pin in the member.

Abstract: A connection device may include an insertion section having an annular outer groove. A housing may be configured to receive the insertion section. A blocking element may be configured to lock the insertions section in the housing, wherein the blocking element may engage the annular outer groove and an annular inner groove formed in the housing. The blocking element may also be configured to be withdrawn through a housing opening substantially tangentially to the grooves and to be pre-fitted in the inner groove and in a pre-fitted state. The blocking element may engage the outer groove and be fixed on the housing securing it against a displacement in a peripheral direction. A securing device may be arranged on an exterior of the housing for securing of the blocking element against displacement takes place at least in the withdrawal direction.

Abstract: A locking clip for use with a hose coupling is provided that includes a first member and a second member that grasp and maintain a locking arm of a locking mechanism commonly used in conjunction with hose couplings.

Abstract: A first coupling member 10 has a body 11 and an internal poppet 16. The exterior of the body 11 includes flats 30. A lug 31 is formed on one of the flats 30 during machining of the flats 30. A dust cover attached to the first coupling member 11 includes a cover portion 40 and a tether portion 41. The cover portion 40 protects an exterior surface 19 of the body, and the cover portion 40 to and tether portion 41 each protects one lateral side of the lug 31. The tether portion 41 includes an annular ring portion 43 disposed in an annular groove 25. A second embodiment 110 of the first coupling member is also disclosed. A second coupling member 210 may be coupled to or uncoupled from either of the first coupling members 10 or 110.

Abstract: A method for connecting at least a first component and a second component together, wherein each said component comprises at least one keyway arrangement extending along the component and keyways of the keyway arrangement are spaced apart from one another. The method comprises the steps of: aligning the keyway arrangements of the first and second components such that the keyways intermesh to provide a continuous keyway passage extending longitudinally between the intermeshed keyways; and, extending a keyway connector comprising an arrangement of keys longitudinally within the continuous keyway passage such that the keys are retained by the keyways of the keyway arrangements. In the slip flange assembly 1001 embodiment shown, the first and second components are each in the form of a pipe (1002, 1003) or tube, the keyway arrangements are in the form of collars (1004, 1008) that extend around abutting ends of said pipes (1002, 1003) or tubes, and the keyway connector (1015) is annular.

Abstract: An easily unlatchable cam-lock actuating device for use in a locking coupling assembly that couples two tubular members, includes a cam arm pivotally mounted on a female tubular coupler and extending thereinto for locking a male tubular end of one of the tubular members, a spring-loaded latch bolt movably mounted in the cam arm to engage a cavity of the coupler so as to lock the cam arm at a locking position, and a releasing lever pivotally mounted on the cam arm and coupled to the latch bolt such that, when the releasing lever is turned from a latched position to an unlatched position, the latch bolt is retracted and disengaged from the cavity.

Abstract: An anti-rotation key inserts into a pocket formed on an outer surface of a male threaded connector. The key has a lower inner side portion for contact with the base of the pocket. An array of teeth on a lower outer side portion of the key bite into an inner wall of a female threaded connector as the key is forced into the pocket. One of the edges of the key is configured such that a line tangent to the first side edge where it intersects the lower outer side portion will intersect a line tangent to a central portion of the lower inner side portion at an angle less than 90 degrees. Relative motion between the male and female threaded connectors in a loosening direction causes the key to pivot about an engagement of the first side edge with the first side wall and bite more deeply into the inner wall of the female threaded connector.

Abstract: A fluid system component includes first and second elements configured to be removably engaged with each other to define a fluid passageway. The first element defines at least one groove. Correspondingly, the second element includes at least one engagement member configured to be received in a corresponding groove. The presence of a line pressure in the passageway substantially forecloses disengagement of the first and second elements until the fluid pressure in the fluid passageway has decreased to a predetermined magnitude. A handling and locking mechanism for selectively securing the second element relative to the first element is included. The locking mechanism includes a pin controlled by a crank arm assembly adjacent a collar handle. The crank arm assembly includes a crank arm handle that rotates to withdrawn the pin from the second element and which facilitates rotation of the first element relative to the second element.

Abstract: A quick connector coupling fitting includes a connector body having a through bore extending axially forward from an entrance opening at one end to an exit opening at an opposite end, the through bore defines a retainer receiving portion axially forward of the entrance opening, a tube receiving portion axially forward of the retainer receiving portion and a sealing chamber portion axially forward of the tube receiving portion. A tube retainer is disposed in the retainer receiving portion releasably secured to the connector body, and a seal element disposed in the seal chamber portion. A verification pin has a solid free end and a longitudinally elongate barrel portion with a cylindrical surface sized for fluid tight sealing relation with the sealing element. It includes opposed latching body portions extending from the barrel portion at an end opposite the solid free end releasably securing the verification pin to the retainer of the quick connector coupling fitting.

Abstract: A coupling device that provides a liquid tight seal at the connection with a conduit with easy installation. The device comprises a tubular connector body, a compression nut, a first sealing ring, a second sealing ring, a ferrule, and a lock nut. The coupling device may be installed fully assembled and does not require disassembly of the packaged product before installation. In the connector body a radial ledge is formed within the tubular spaces between the first and second ends. The radial ledge of the connector body has at least one depression. The ferrule has a tubular body with a radial flange extending from a first end portion. At least one protrusion extends from the radial flange that corresponds to the depression on the tubular body. When the depression of the tubular body engages the protrusion of the ferrule, it restricts the ferrule from relative rotation. This restriction allows that the coupling device be installed fully assembled.

Abstract: A coupler for connecting and disconnecting a first hydraulic connector and a second hydraulic connector. The coupler has a first end and a second end. The coupler first end has a threaded opening adapted to combine with a threaded connector. The coupler second end has an opening with several members movable relative to the longitudinal axis of the coupler. The movable members have a first position wherein they are moved outward to make the opening larger and a second position wherein they are moved inward to make the opening smaller. The opening in the coupler second end is adapted to receive a threaded connector when the movable members are in their first (larger) position. After a portion of the threaded connector is inserted into the opening, the members are moved to their second (smaller) position thereby securing the threaded connector to the coupler second end.

Abstract: A method of locking tubular components in end to end relation. A first tubular body is provided having a tongue with an outwardly facing groove protruding past one end along an interior surface that has a keyway. A second tubular body is provided having a tongue with an inwardly facing groove protruding past one end along an exterior surface. A split ring is positioned in the grooves to connect the bodies. The split ring has a tapered outer surface to permit removal by an axial force. A tubular insert carries a locking key which engages the axial keyway. When the tubular insert is fully inserted into the first tubular body, the key underlies the split ring and prevents the split ring from having sufficient clearance to be withdrawn.

Abstract: A coupling apparatus having coupling body with a mechanical latch assembly. The mechanical latch assembly includes a modified latch plate. The latch plate defines a main portion having a top end and a bottom end and includes an annular aperture disposed between the top and bottom ends. A lever portion is disposed proximate the top end. The lever portion enables the latch plate to move within a coupling body, so as to operate the mechanical latch assembly in a released position and a latched position. A raised edge is disposed about a portion of the annular aperture. The raised edge is disposed proximate the bottom end and extends radially inward of the inner edge defined by the annular aperture. A pin opening is disposed proximate the bottom end opposite of the lever portion. The pin opening is positioned radially outward from the annular aperture, and defines a separate enclosed edge.

Abstract: An axially tensioned pipe joint for joining two pipes is disclosed. The pipe joint comprises a first PVC pipe having an outer surface. The pipe joint also comprises a second PVC pipe having a bell end which fits onto the spigot end. The bell end has a plurality of angularly-spaced-apart holes extending radially through the bell end. A set of radial fasteners can be inserted into the holes so as to engage the outer surface of the spigot end to prevent relative axial movement of the first pipe with respect to the second pipe. The radial fasteners have a surface containing a hard material which is harder than the material of the second pipe and roughen the holes during insertion thereby creating a friction fit resisting removal of the radial fasteners. The pipe joint can be used for horizontal direction drilling.

Abstract: A lockwireless, anti-rotation fitting for connection to a connector. The fitting includes a coupler having a series of circumferential engagement portions disposed about an outer peripheral surface, and a nut receivable coaxially over the outer peripheral surface of the coupler, and which is threadably engageable with the connector. The nut has an opening through which is received the end of a locking mechanism. The locking mechanism end is interferingly engageable with the coupler engagement portions such that with the nut being received coaxially over the coupler outer peripheral surface of the coupler, the nut is threadably engageable with the connector urging the coupler into a sealing engagement with a sealing surface of the connector, and with the coupler being so engaged, the locking mechanism end is interferingly engaged with at least one of the coupler engagement portions delimiting the rotation of the nut relative to the connector.