Abstract: A combustor for a gas turbine includes a ceramic matrix composite (CMC) dome with a swirler mounting wall formed integral with the CMC dome, and a swirler assembly including a plurality of clevis dome attachment members for connecting the swirler assembly to the CMC dome. Bushings are arranged within a plurality of dome-side swirler assembly mounting openings of the swirler mounting wall, and the CMC dome is arranged within respective ones of the plurality of clevis dome attachment members of the swirler assembly. A swirler-dome connecting member is disposed through each of the clevis dome attachment members so as to mount the swirler assembly to the CMC dome.

Abstract: An operating tool for an artificial lift system includes a housing having a key slot. The operating tool further includes at least one biasing member disposed in the housing. The operating tool further includes a key including a key head having a key profile, wherein the key head is remove from the slot when aligned with the key slot. The operating tool further includes a cam including a cam profile, wherein the cam is disposed in the housing and biased toward the slot by the at least one biasing member, wherein the cam profile is configured to engage the key profile to align the key head with the key slot.

Abstract: A method of installing a dryer vent in a building exterior foundation wall during construction of the building. The dryer vent installation method comprises mounting a rigid wall plate that includes a fastener tube, the fastener tube includes outwardly facing pins. The dryer vent installation method includes mounting a removable flapper housing with mounting slots, the housing including a flapper valve. The dryer vent installation method further includes removably fastening the flapper valve housing slots to the fastener tube pins.

Abstract: A downhole tool activation assembly for prevention of activation from rig heave on a floating rig comprising a block release with a release feature. The release feature includes a release chamber, an activation chamber, and a fluid stop that retains a traveling block in a first position. A traveling block comprised of a plurality of drag blocks and drag block springs is configured to retain the traveling block to a position along an inner surface of a casing. The block release moves to a release position when the release feature is activated. The traveling block moves axially along a block mandrel with a block lug traveling within a j-slot. The j-slot on the block mandrel includes a run-in slot, a motion slot, and an activating slot configured to transfer the block lug to the next slot. The activating slot is configured to move the traveling block to an activating position.

Abstract: Turbomachines and methods for coupling first and second turbomachine components are provided. The components include castellated flange arrangements that provide an improved retention method for retaining the components that is far superior in than bolts and nuts, especially for massive unbalance loading.

Abstract: A tracheal tube (e.g., an endotracheal tube) includes an inserting cannula (that may be able to swivel), and wherein the inserting cannula is connected to an elbow adaptor through a Bayonet Neill-Concelman (BNC) connection. The BNC connection may provide more secure connection of the corresponding components and may be able to withstand greater amounts of force exerted on them without becoming detached from each other. The elbow adapter may further be coupled to a pressure release valve that will alleviate pressure buildup within the tracheal tube.

Abstract: One exemplary embodiment of this disclosure relates to a gas turbine engine. The engine includes a first attachment member including an opening, a second attachment member including a loop at least partially extending through the opening, and a pin between the first attachment member and the loop.

Abstract: A connector assembly includes a first connector having an outer tube and an inner tube, the outer tube being equipped with a pin having a first flow path, the inner tube being equipped with a first valve element opening and closing the first flow path; a second connector having a second flow path and a second valve element for opening and closing the second flow path; a locking device interconnecting, in an assembled state in which the first and second connectors are assembled together, the inner tube and the second connector; and an unlocking device for unlocking the connection between the inner tube and the second connector effected by the locking device. The first and second flow paths are interconnected in the assembled state. In this interconnected state, the connection between the inner tube and the second connector by the locking device cannot be unlocked by the unlocking device.

Abstract: A pipe quick release structure includes a first pipe having at least one guiding element formed on an outer periphery of the first pipe, a second pipe having at least one axial trough defined to correspond to and movably and selectively receive therein the at least one guiding element of the first pipe and a joint securely received in the second pipe and having at least one axial ledge formed on an outer periphery thereof to be movably received in the at least one axial trough of the second pipe, at least one second axial trough defined to receive therein the at least one guiding element of the first pipe and at least one recess defined to communicate with the at least one second axial trough to selectively position the at least one guiding element of the first pipe so as to selectively secure connection of the first pipe to the second pipe.

Abstract: An apparatus includes a gas burner assembly which includes a gas burner and a gas supply conduit. The gas burner includes a gas supply opening and a substantially cylindrical socket formed on the exterior of the gas burner around the gas supply opening. The gas supply conduit includes an opening at an end and a substantially tubular adjoining section proximate to the opening. The adjoining section is configured to mate with the socket and includes a substantially radial protrusion. The socket includes a substantially radial depression for receiving the protrusion. As the gas supply conduit is connected with the gas burner to establish fluid communication at the gas supply opening, the protrusion is engaged in the depression thereby aligning the adjoining section in a predetermined manner about the socket and restricting rotational movement of the adjoining section about the socket.

Abstract: This invention is a device that is used for attaching a garden hose to a hose bib (faucet). It consists primarily of two components: an upper part which attaches to a hose bib and a lower part which attaches to the hose. The upper part has a stepped protruding tube which carries two o-rings on its circumference. The lower part has a smooth bore, particularly at the location of the o-rings; and when inserted over the upper tube, results in a pressure tight seal. The two parts are held together by a three-pronged clasp arrangement which facilitates the installation and separation of the two components. Roller bearings incorporated into the upper part and inclined ramps which are part of the lower part assist with the connection.

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 water delivery system (10) includes a first component (52) coupled to a fluid transport member (20) and a second component (66) coupled to an aerator (34) for positioning within a faucet spout (26).

Abstract: A coupling device may include a first cylindrical connecting body and a second cylindrical connecting body having a retaining ring rotatably mounted thereon and moveable between a locking position and an unlocking position. A detent device may have at least one detent formed on the retaining ring and at least one counter detent formed on the second cylindrical connecting body with which the detent interlocks upon reaching the locking position. The detent may have a detent arm arranged on the retaining ring and configured to be spring-elastic in the radial direction. The counter detent may have a detent opening which is formed in a collar enclosing the retaining ring and in which the detent arm radially engages upon reaching the locking position so as to be supported on an edge of the detent opening in order to be rotatably secured in the circumferential direction.

Abstract: A quick connector assembly for a faucet is provided. The quick connector assembly includes a hose fitting having a longitudinal axis, a lock tab coupled to the hose fitting and having at least one projection extending radially therefrom, and a connector body having at least one slot extending from an opening to a locked position, the at least one slot configured to receive the at least one projection of the lock tab. Moving the projection of the lock tab from the opening of the slot to the locked position connects the lock tab to the connector body.

Abstract: An interlocking mechanism includes an entry channel and a rotational channel positioned adjacent to entry channel. A locking bead is positioned in the rotational channel at a position in the channel defined to engage a mating element in a locking lug on a mating component when the lug is positioned adjacent to an end of the channel. The entry channel may include a face increasing in height from the entry portion to the end portion.

Abstract: A bayonet fastening which can be used to connect two pipeline components, in particular connection elements. The pipeline components which are to be connected respectively comprise a cylindrical receiving part (1) and the second pipeline component comprises an insertion part (2) which can be introduced into the receiving part. A clamping ring (3) is arranged on the outer diameter of the insertion part and the receiving part can be pushed onto said clamping ring. The bayonet fastening can be locked by rotating the receiving part and the insertion part in relation to one another.

Abstract: A connector assembly has a hollow first connector and a hollow second connector. The first connector has an engaging block. The second connector has an opened connecting end, a guiding groove, a resilient tab cavity, an escaping segment and a resilient tab. The resilient tab cavity is defined in the second connector at a side of the guiding groove opposite to the connecting end and communicates with the guiding groove. The escaping segment is formed on and protrudes from an outer surface of the second connector at a position between the guiding groove and the connecting end of the second connector and is hollow to define an escaping space communicating with the guiding groove. The resilient tab is formed on and protrudes from an inner surface of the resilient tab space and has a free end extending into the guiding groove.

Abstract: A lock member capable of contacting an engaging projection of an inserted pipe section from a direction of the pipe axis and relatively rotatably attachable between an annular wall portion of a receiving pipe section and the engaging projection of the inserted pipe section includes engaging stopper portions projecting therefrom for contacting an inward surface of the annular wall portion from the direction of the pipe axis. The annular wall portion has attachment/detachment recesses formed therein for allowing inserting and removing movements of the engaging stopper portions in the direction of the pipe axis. An elastic urging member is provided between an extending portion projecting from the lock member to the outside of the pipe through an inner peripheral surface of the annular wall portion and the outer peripheral surface of the inserted pipe section, and an outward surface of the annular wall portion.

Abstract: A quick connect/disconnect system female component includes a first end portion, a second end portion, a fluid channel, and a first mating feature. The first end portion defines a first coupling portion. The second end portion defines a second coupling portion. The second coupling portion is configured to couple with a male quick connect/disconnect system component. The fluid channel extends between the first end portion and the second end portion. The first mating feature is on an external surface of the second end portion and is configured to rotatably engage a second mating feature on an internal surface of the male quick connect/disconnect system component.

Abstract: A flame holder system includes a modified torch body and a ceramic flame holder. Catch pin(s) are coupled to and extend radially out from the torch body. The ceramic flame holder has groove(s) formed in its inner wall that correspond in number and positioning to the catch pin(s). Each groove starts at one end of the flame holder and can be shaped to define at least two 90°turns. Each groove is sized to receive one catch pin therein when the flame holder is fitted over the end of the torch body. The flame holder is then manipulated until the catch pin(s) butt up against the end of the groove(s).

Abstract: The invention relates to a riser pipe section (1) comprising a main tube (2), at least one auxiliary line element (3) arranged substantially parallel to said tube (2), the ends of the main tube comprising connection means allowing longitudinal stresses to be transmitted and the ends of the auxiliary line element comprising linking means allowing longitudinal stresses to be transmitted, said linking means comprising at least one locking pin (14).

Abstract: A device for a passenger protection system of a vehicle is provided. The device comprises an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in a case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from the shell surface of the gas generator, and a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and introduce the same into a gas bag to be inflated. The gas conducting element is connected with at least one of the stay bolts of the gas generator by means of a bayonet connector For forming a bayonet connector the gas conducting element forms at least one joining channel for the at least one stay bolt of the gas generator and in the region in which it forms the joining channel the gas conducting element at least partly includes a material reinforcement.

Abstract: A faucet outlet structure includes a faucet base, an outlet pipe and two outlet ducts. The outlet pipe is made by zinc alloy using die-casting processing method to form in one piece, and the two outlet ducts are made by plastics and engaged with each other. Each engaging portion has a connecting portion, wherein a protruding edge of the first connecting portion of the first outlet duct has a through restricting hole, and a through slot is diagonally and recessedly formed at the opening of two protruding edges and the through slot and the restricting hole are connected perpendicularly. The second connecting portion has a block protrudingly on both sides and the block is engaged with the restricting hole of the first outlet duct. According to the abovementioned structure, two outlet ducts penetrate through both sides of the outlet pipe, align to engage and then turn, so the two outlet ducts can be fast, easily and securely positioned at the bended outlet pipe.

Abstract: A quick connector having an anti-disengagement structure includes a first body, a second body and a locking member. The locking member is connected to one end of the first body and stopped by an oil seal. The second body is connected to the first body and the locking member is fitted on the second body. A locking block of the locking member is engaged in a locking recess of the second body to complete the assembly of the first body, the second body and the locking member. Particularly, the locking recess of the present invention has an anti-disengagement design to prevent any unexpected disengagement and to ensure the connection of the connector.

Abstract: A gas spring assembly includes a first end member and a second end member. A flexible wall is secured between the first and second end members and at least partially defines a spring chamber therebetween. A fitting is supported on the first end member and is rotatable between a first position in which the fitting can be axially displaced and a second position in which the fitting is axially restrained. A method is also included.

Abstract: A universal connector (5) is provided for connecting an architectural covering to an architectural surface. The connector has an adaptor plate (6) that is substantially circular and has one or more radially outwardly projecting flanges (16) and is arranged to be inserted into a ring-shaped engagement member (7) having one or more openings (18) in a front cover (17). The adaptor plate and the engagement member are configured such that the adaptor plate may be inserted into the engagement member by aligning the one or more flanges of the adaptor plate with a respective opening in the front cover of the engagement member and removal of the adaptor plate from the engagement member may subsequently be prevented by a partial rotation of the adaptor plate relative to the engagement member.

Abstract: The invention relates to a connection between two pipe parts. One of the pipe parts (1, 2) comprises a male end (3) and the other pipe part (1, 2) comprises a female end (4). The two pipe parts (1, 2) can be connected together by positioning the male end (3) to the female end (4) such that the pipe parts (1, 2) are rotated with respect to each other when they are connected. At least one end (3, 4) of one pipe part (1, 2) is provided with at least one protrusion (11) and at least one end (3, 4) of the other pipe part (1, 2) is provided with a corresponding recess such that the protrusion (11) and the recess together lock the pipe part (1, 2) to a correct positioned with respect to each other. The protrusion (11) is positioned on the outer circumference of the pipe part (1, 2), whereby the protrusion (11) is manipulatable outside of the pipe part (1, 2).

Abstract: A water inlet/outlet assembly for a faucet includes a fore-injection molding dividing unit, a post-injection molding connecting unit and at least one supply pipe. The fore-injection molding dividing unit includes at least one water inlet pipe and a water outlet pipe. The water inlet pipe has at least one catch portion, at least one limit opening and at least one retaining slot. The post-injection molding connecting unit coats the water inlet pipe and is combined with the catch portion, the limit opening and the retaining slot to enhance combination strength between the post-injection molding connecting unit and the fore-injection molding dividing unit. The supply pipe has at least one axial breach, at least one mortise and two journals. The post-injection molding connecting unit coats the supply pipe and is combined with the axial breach, the mortise and the journals.

Abstract: The combination of a) a first tubular element with a first axis, a first portion with a radially outwardly facing surface and a first connecting assembly with a first circumferentially facing surface and b) a second tubular element with a second portion with a second axis, a radially inwardly facing surface, and a second connecting assembly with a second circumferentially facing surface. The first portion is extendable within the second portion. The first and second tubular elements are movable around the first and second axes between a) a first relative rotational position and b) a second relative rotational position such that the first and second connecting assemblies cooperate to draw the first and second portions axially towards each other and the first and second circumferentially facing surfaces confront each other to thereby block relative movement back into the first relative rotational position.

Abstract: A female coupling element for releasably joining pipes and which receives a male element along a longitudinal axis thereof, and which includes a body, a locking ring secured in translation relative to the body and provided with at least one slot for receiving at least one radially projecting portion of the male element, and at least one locking notch for receiving the projecting portion in a configuration in which the projecting portion is locked axially along the longitudinal axis, a safety ring superposed, at least in part, on the locking ring, and the safety ring including at least one elastic member that is deformable between a first configuration in which the member prevents the projecting portion of the male element moving out of a locking notch and a second configuration in which the member allows the projecting portion to move from the locking notch.

Abstract: A duct connection system has a direct-manufactured first duct structure including a first duct section. The first duct section has a passage for conveying a substance and a first interconnect component moveably and captivity coupled to the duct section. The duct connection system also has a direct-manufactured second duct structure including a second duct section. The second duct section has a passage for conveying the substance and a first interconnect component configured to enter a locked state with the first interconnect component such that a sealing force between the first and second duct structures is substantially equal to a predetermined value.

Abstract: A pipe coupling (1) comprising a tubular body (2) having at least one open end (3,4,5), a stop component (14) disposed within the tubular body distal to the open end to stop a pipe when it is inserted a predetermined distance into the tubular body. A sealing component (15) is intermediate the stop and the open end and a pipe engaging component (17) is disposed intermediate the sealing component and the open end having a variable diameter to clamp and release an inserted pipe as a result of the diameter of the pipe engaging component reducing and increasing respectively. A pipe release component (21) is disposed intermediate the pipe engaging component and the open end, the pipe release component being movably mounted on the open end and having a pipe clamping position.

Abstract: The invention relates to a riser pipe section comprising a main tube (2), at least one auxiliary line element (3) arranged substantially parallel to said tube (2), characterized in that the ends of main tube (2) comprise connecting means (8) allowing longitudinal stresses to be transmitted and in that the ends of auxiliary line element (3) comprise linking means (5-6) allowing longitudinal stresses to be transmitted.

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: Fluid coupling formed as an assembly of a first body section having an end portion with studs and a second body section having an end portion configured to receive the end portion of the first body section and having grooves for receiving a corresponding one of the studs. Each of the grooves has an axial inlet section, and a blind section extending circumferentially from the inlet section to an end wall movable between a projecting position retaining the stud in the blind section and a retracted position allowing the stud to pass from the inlet to the blind section. Rotation of one of the body sections passes the studs in the retracted position of the groove end wall from the inlet section into the blind section, the studs being retained in the blind section in the projected position of the groove end wall to couple the body sections.

Abstract: A solenoid valve has a valve body with an inlet, an outlet and a valve chamber therebetween. A valve member is selectively engagable with the valve chamber for controlling the flow of fluid from the inlet to the outlet. A solenoid assembly is mounted upon the valve member for moving the valve member to control the flow of fluid from the inlet to the outlet. The solenoid assembly includes a solenoid and a frame for holding the solenoid. The solenoid assembly is connected to the valve body such that the frame is rotatable and slidable away from the valve body to permit access to and slidable removal of the solenoid from the valve member.

Abstract: A combination of two bodies having tube-shaped or sleeve-shaped connecting sections which can be plugged into one another as part of an air-conditioning line system in an aircraft, the combination including at least one radial locking projection on a first body, at least one locking clearance on a second body which is completely surrounded by a rim, at least one lead-in clearance which is angularly offset in the peripheral direction in relation to the appertaining locking clearance, and at least one releasing groove associated with each locking clearance and disposed angularly offset in the peripheral direction on the opposite side of the appertaining lead-in clearance.

Abstract: A connection for connecting tubular air guide element to a turbocharger includes a tubular nipple having a connection end provided with first set of locking element and an air guide element having a connection end provided with a second set of locking elements. A bayonet ring having locking elements is received over the connection ends and forms a bayonet coupling, coupling the tubular nipple and air guide element in a sealed manner.

Abstract: A method and apparatus for supporting a tubular breakout device in a position. An embodiment of the device comprises a first channel in the inside face of the device for receiving a corresponding key of a quill, a socket adjacent to the first channel, and a second channel adjacent to the socket. An embodiment of the device is moved from the engaged position to the disengaged and supported position by the method of moving the device from an engaged position to a disengaged position, rotating the device so that the key of the quill slides into the socket of the device, then moving the device to a secured position by lowering the device so that the key of the quill slides into the second channel of the device.

Abstract: A conversion adapter for connecting a fluid supply assembly to a fluid applicator. The conversion adapter provides a connection between the fluid supply assembly and the fluid applicator. The conversion adapter has a first end and a second end, and a bore between the first end and the second end. The first end has a complementary connecting surface mating with the connecting surface on the fluid supply assembly. The second end has a complementary connector in the bore, and a top and bottom. The complementary connector is selected from complementary grooves or complementary projections, and mates with the connector on the adapter of the fluid applicator.

Abstract: A female coupling element includes two superposed coaxial rings, a locking ring and safety ring which are rotatably mounted about a body of the coupling element. The locking ring is axially immobilized with respect to the body while the safety ring is able to slide with respect to the locking ring and with the body. The locking ring (2) has at least one locking slot for receiving a projection of a second element inserted within the coupling element and a notch to lock the projection axially with respect to the coupling element, and the safety ring includes at least one safety slot having a notch which locks the projection circumferentially in the notch of the locking ring.

Abstract: An adapter assembly for connecting a sewage drain pipe to a sewage disposal site inlet in fluid communication includes a hollow tubular member, a hollow adaptive member and flexible seal. The hollow tubular member having an open inlet adapted to engage threadable or otherwise to the end of a sewage drain pipe. A hollow adapter member having an open discharge end with adaptive features to be inserted into disposal site inlet. The tubular and adapter member interfacing via a rotational positive mechanical lock compressing an annular flexible seal radially or axially to ensure a dependable, long lasting low pressure fluid tight seal.

Abstract: Improvement in a quick disconnect coupling that includes a tubular coupler half, having a radially outwardly-directed roller on an outer surface portion thereof; a tubular nipple half, having a push-to-connect mechanism, including a cup-shaped member, concentrically surrounding a nipple body portion, this mechanism including a locking device having a basically L-shaped contoured slot including a helically-directed ramp inlet and a locking slot portion; the improvement comprising that the push-to-connect mechanism includes the rotatable journaling of the cup-shaped member, for limited rotational pivoting relative to the nipple half; this mechanism also including a biasing member for concurrently normally biasing the cup-shaped member to an at-rest position relative to the nipple body.

Abstract: Controlled Buoyancy Perforating technology for highly deviated and substantially horizontal wellbores may include long perforating guns assembled on a rig floor from a multiplicity of light weight and highly engineered shaped charge carrier joints. Tubular housings for such light weight joints may be fabricated from composite materials having steel transition collars. The collars are designed for an angularly coordinated, bayonet assembly and, in most cases, rapid disassembly. The internal volume of each joint is environmentally sealed by a plurality of O-rings. Sleeves that overlap abutting ends of adjacent carrier joint housings are secured by snap rings. Set screws into the sleeve ring channels release the sleeve from a housing. Individual shaped charge units and cooperative fusing are assembled in a light weight inner loading tube having an alignment collar to secure the angular and axial position of the loading tube relative to the transition collars.

Abstract: A hose coupling includes two coupling halves which take a coupling end position by relative rotation against each other about a coupling path of no more than 180°. The hose coupling further includes a locking mechanism that prevents an unintended opening of the coupling. The locking mechanism comprises a latching mechanism, in particular a latching pin mechanism. The latching mechanism is automatically activated in the coupling end position and prevents a relative rotation of the coupling halves against each other. The latching mechanism is preferably configured such that, already before reaching the coupling end position, the latching mechanism is activated so far that it counteracts a relative rotation of the coupling halves in an opening direction.

Abstract: A coupling for mechanically connecting modular tubular struts of a positioning apparatus or space frame, comprising a pair of toothed rings (10, 12) attached to separate strut members (16), the teeth (18, 20) of the primary rings (10, 12) mechanically interlocking in both an axial and circumferential manner, and a third part comprising a sliding, toothed collar (14) the teeth (22) of which interlock the teeth (18, 20) of the primary rings (10, 12), preventing them from disengaging, and completely locking the assembly together. A secondary mechanism provides a nesting force for the collar, and/or retains it. The coupling is self-contained and requires no external tools for installation, and can be assembled with gloved hands in demanding environments. No gauging or measured torque is required for assembly. The assembly can easily be visually inspected to determine a “go” or “no-go” status. The coupling is compact and relatively light-weight. Because of it's triply interlocking teeth, the connection is rigid.

Abstract: An adapter that bridges the connecting ends of a medication providing device and a fluid connector includes a housing shroud that is fitted at one end with a core and at its other end with an inner shroud. A catch hub is provided within the housing shroud to act against a flange at the core so as to non-removably maintain the core to the housing shroud. The core is rotatable relative to the housing shroud. Once the medication providing device is coupled to the core, additional rotational movement, in either direction, of the medication providing device would only cause the core to rotate freely relative to the housing shroud. The inner shroud has a catch mechanism that enables it to mate readily with a connector, if the connector is rotated in one direction. The catch mechanism is designed with one way teeth such that once the connector is fully mated to the inner shroud, further rotational movement along the coupling direction would cause the inner shroud to rotate freely relative to the housing shroud.

Abstract: Controlled Buoyancy Perforating technology for highly deviated and substantially horizontal wellbores may include long perforating guns assembled on a rig floor from a multiplicity of light weight and highly engineered shaped charge carrier joints. Tubular housings for such light weight joints may be fabricated from composite materials having steel transition collars. The collars are designed for an angularly coordinated, bayonet assembly and, in most cases, rapid disassembly. The internal volume of each joint is environmentally sealed by a plurality of O-rings. Barbs carried by collet fingers projecting from opposite ends of a sealing sleeve that externally bridges a transition collar union plane secures the union by meshing with detent channels in the respective collars. Individual shaped charge units and cooperative fusing are assembled in a light weight inner loading tube having an alignment collar to secure the angular and axial position of the loading tube relative to the transition collars.

Abstract: A shower head includes an adapter, an extension pipe, a cover, and a filter. Thus, the locking blocks of the extension pipe are locked in and unlocked from the locking slots of the adapter by rotation of the extension pipe, so that the extension pipe is mounted on and detached from the adapter easily and rapidly, thereby facilitating a user mounting and detaching the shower head.