Abstract: A quick coupling connector for removably connecting pipes, including a male member which is selectively connected within a female member to open a resiliently biased valve mounted within the female member. A safety ring is mounted about the female member and incorporates claws to axially retain the male member in a position intermediate a fully seated position within the female member and a fully released position after a first axial movement of a bush, which encloses both the male and female members, in a first direction opens a locking ring which also incorporates claws which are engageable with the male member and which normally secures the male member within the female member. In the intermediate position, a pipe associated with the male member is allowed to decompress after which the bush is moved in a second direction opposite the first direction, thereby releasing the claws of the safety ring and resulting in the release of the male member.

Abstract: A push-to-connect coupler including an interlocking three-way valve that enables coupling and uncoupling with respect to a mating nipple only when the coupler is in a vent mode. The coupler is characterized by a unique integration of a manually operated three-way ball valve that vents the coupler down to atmospheric or reduced pressure prior to coupling or uncoupling and preferably to a recovery line, a push-to-connect sleeve locking mechanism which interlocks with the manually operated handle of the three-way valve and whose operation is visibly obvious to the user, and an internal valve mechanism that prevents the free flow of media should the coupler become miscocked.

Abstract: An internal combustion engine fitting containing a thermostatically controlled valve regulating the flow therethrough is formed by two parts interconnectable by relative rotation through a bayonet type connection. The bayonet connection utilizes two stages wherein the first stage maintains the parts connected but a bypass passage defined between the parts permits the flow of coolant through the fitting around the valve to initially permit the engine coolant system to be filled. After the coolant system is filled, the fitting parts are rotated to a final closed position sealing the bypass passage permitting the thermostatic valve to control flow through the fitting during normal engine operation. The fitting parts remain sealed to the atmosphere during both stages of interconnection.

Abstract: A quick fit pipe coupling has two parts with each body part retaining one of the pipes to be connected. The two body parts are screwed together. One pipe is to be push-fitted into the coupling. This pipe has radially extending ridges by which the pipe can be latched in one part of the coupling, and this one part of the coupling also carries the seals which provide the fluid tight seal. When the coupling is dimantled, the seals remain in position and are not disturbed.

Abstract: A coupler is provided for connecting a vehicle exhaust pipe to an exhaust extractor hose. The coupler (30,114) has a housing (32,116) with an inlet end (3,124) and an outlet end(36,118). A curtain wall assembly (68,122) is provided at the inlet end to sealingly receive the exhaust pipe. The curtain wall assembly comprises at least a pair of facially abutting curtain wall members (70, 126) defining adjacent mutually offset flexible flap members (78,140) that deflect and seal around the exhaust pipe. A peripheral clamping ring (80, 128) clamps the curtain wall members together. The housing is provided with air passageway holes (52,145) and a slider member (56,144) having air passage holes (58,146) which is slidable on the housing to bring the holes (58,146) into or out of registry with the holes (52,145) to increase or decrease airflow through the holes (52,145).

Abstract: A system and method for connecting two fluid carrying tubes includes a first tube having a lumen therethrough and an open end, and a bubble elimination port proximate the open end and in fluid communication with the lumen, and a second tube having a lumen therethrough and an open end. The first and second tubes are connected in a first position, wherein the lumen of the first tube and the lumen of the second tube form a fluid-tight circuit and the bubble elimination port is open to the circuit, to eliminate any bubbles in the fluid circuit. The first and second tubes then are connected in a second position, wherein the lumen of the first tube and the lumen of the second tube form a continuous, fluid-tight circuit and the bubble elimination port is closed to the fluid circuit.

Abstract: A lined pipe joint with an improved collar seal and pipe lining end therefor. The pipe lining end is disposed at the end of the liner in the pipe. The lining end is adapted to shoulder against grouting material which holds the liner in place such that longitudinal contraction of the liner is prevented. The lining end also has a tapered bore therein which compensates for any inward deflection of the pipe section when threadingly engaged with a pipe fitting. The collar seal fits within the end of a pipe section which is to be connected to a pipe fitting. A sealing check valve on the collar seal provides sealing between the collar seal and the pipe section when pressure within the pipe section is greater than pressure outside the collar seal. The sealing check valve allows relief of pressure outside the collar seal into the pipe section when the pipe section is depressurized, so that damaging inward deflection of the pipe liner is prevented. A method of assembling the pipe joint is also disclosed.

Abstract: An arrangement for connecting two parts of a fluid system, preferably an aseptic system, by which the pressure gradient acts from the outside to the inside. The one system part carries an O-ring in a groove open to the other system part and open radially outwardly and the other system part is pressed against the O-ring by an axial holding device. To avoid dead space, in which bacteria could deposit, a space formed by the O-ring, the two system parts and the axial holding device is provided with a communication to the surroundings.

Abstract: An improved choke valve apparatus for use in controlling oil well flow for example includes an improved interlock system for warning of a pressurized condition within the valve prior to removal of the valve wing nut member. The safety bleeder plug assembly includes a plug body threadably attached to an opening in the choke body. A pair of spaced apart spring loaded washers interfaces the bleeder plug body and the choke body to several hundred pounds per square inch of pressure so that inadvertent removal of the plug body and body is prevented.

Abstract: A secondary retention clip to prevent the complete separation of the female end of an air conditioning hose from a connected male end. The female end is flared and the male end has a coupling flange which receives the flared female end. The clip has a box like receptacle for the coupling flange. The connected tubes are located in side openings which communicate with a open top. Stops prevent entry of the flared portion so that the clip will be attached with the parts properly connected. Clamping jaws secure the hose in position and prevent its vibration.

Abstract: The invention relates to a closure unit for a container suited to filling and dispensing a beverage stored under a pressuring gas. The closure unit comprises a bush from which is disposed a tubular element mounting two concentric valves and a siphon tube which extends into the container. The bush is locked into place in the neck of the container by a threaded locking sleeve which sandwiches a deformable ring between it and the bush. The ring and locking sleeve have respective intermeshing saw toothed profiles which allow locking to occur. This prohibits gas flow from the container between the neck and the bush. Upon unlocking, the profile in the ring becomes fractured thereby depressuring the container.

Abstract: An apparatus for providing bleed air to exit an air outlet fitting where an air hose is connected to a turbine housing to cool the turbine and outlet fitting. The bleed air is directed through longitudinal channels outside the air hose and to an air diffuser collar where it is deflected to exit the apparatus radially.

Abstract: A connector assembly includes a connecting block and mating adapter for attaching an automotive refrigerant line to a condenser tank. A port/passageway is provided within the connecting block to receive a nipple on the adapter for communicating fluid from the refrigerant line to the condenser tank. The connecting block is securely welded or brazed to the side wall of the condenser tank providing a secure, leak-proof joint. A retaining bolt securely maintains the connection of the adapter to the connecting block.

Abstract: A unique plastic retainer is disclosed having a pair of axially spaced cylindrical rings. Retainer arms for retaining an upset portion of a tube within a housing bore extend from a rear ring, and a plurality of webs connect the front and rear cylindrical rings of the retainer. When a tube is initially inserted into the housing bore, it contacts an inner periphery of the arms. The retainer then moves axially forwardly within the bore for a small distance until the forward ring abuts a seal package within the housing. Further movement of the retainer is then prevented, and the upset portion of the tube causes the arm to flex radially outwardly at a flex point in the rear ring. The upset portion may then move axially beyond the arms into a fully connected position within the housing.

Abstract: A pipe joint having a pipe (11) including an outward facing flange (17), a joint body (10), and a tubular fixture (20) covering an outer peripheral part of the joint body (10) and coupling to the pipe (11) with joint body (10). The tubular fixture (20) is composed of springy claws (25) and an inward facing flange (21), so that an assembly work can be simplified and a manufacturing cost can be reduced owing to a decrease in a quantity of parts.

Abstract: A preloaded connection for use between subsea tubular members including a flange surrounding one end of one of the tubular members, connecting means surrounding the exterior of the other tubular member, a ring, studs extending through said flange and said ring to secure the ring to said flange, nuts on said studs to secure the flange to the ring, pressure responsive means between said ring and said flange to urge said ring away form said flange to introduce tension in said studs, means carried by said ring for engaging with the external connecting means of said other tubular member, means for moving said engaging means carried by said ring into engagement with said external connecting means, and means for venting said pressure responsive means after engagement is achieved between said engaging means and said external connecting means.

Abstract: A through flow coupler comprises two parts having intercommunicating passages therein so that fluid can flow through the two parts. A sealing member provides a fluid tight seal between the two parts when the two parts are held together in a sealed condition. A pressure sensitive device, which may comprise a frangible ring, holds the two parts in the sealed condition when the fluid pressure within the passages is below a certain value and allows the two parts to move relative to one another to a pressure relief condition so that fluid can escape from the passages when the fluid pressure within the passages exceeds said certain value. Also, mutually co-operable members, e.g. flanges, are provided to prevent total separation of the two parts when the pressure sensitive device allows the two parts to move relative to one another.

Abstract: A pipe connector device for selectively interconnecting a pair of pipe elements in an end-to-end relationship and for sealing a junction between the elements to prevent leaks. A first and a second pipe element each includes a cavity adjacent to a center bore in the pipe element. The first pipe element has a substantially smooth inner surface which defines an outer boundary of a first cavity. An annular seal mounted in the cavities seal the junction between the pipe elements. A threaded outer portion of the seal has a plurality of radially outer points which press against the inner surface of the first cavity to retain the annular seal in the first cavity when the pipe elements are separated.

Abstract: High pressure gas pipeline is intended for economic transportation of fluids in gaseous or liquid condition. The pipes are coaxially disposed, so that the first axial pipe 1 and the second axial pipe 2 are supported by the first ring 6 forming the first shell, while the third axial pipe 3 and the fourth axial pipe 4 are supported by the second ring 7 forming the second shell. Outer shell is the pipe shell 5 and it is retained on the second shell by the second supports 9, while the second shell is retained on the first shell by the first supports 8. The pipeline is secured from explosion in the way that the first shell is secured by the first discharge pipe 10, and the second shell is secured by the second discharge pipe 11, both of which are connected with the atmosphere. The discharge pipe passages through the shells are reinforced by discharge pipe reinforcement 12.

Abstract: A coupling has first and second tube portions joined by a control collar that is rotatable to axially position the first and second tube portions in an installed position, a locked position and in a blow-off position. In the locked position, the tube portions are axially inserted and rotated and locked together by a biasing spring against separation and an O-ring member on one tube portion seals against the other tube portion to seal the tube portions together to prevent fluid leakage therefrom when in their locked position. The other tube portion includes a relief port which is opened for safety blow-off of pressure when the one tube portion is positioned in the blow-off position.

Abstract: A bleed-down connector assembly is described which employs a rotatable cap for controlling the axial movement of the conduit in the connector housing between the sealed and bleed-down positions. The cap is mounted concentrically over the housing for both rotational and axial movement with respect to the connector housing. The cap includes a wall portion which is formed to engage a retainer associated with the connector assembly for retaining or maintaining the conduit in the housing. The housing is formed to provide a ramp of varying axial length and the cap is formed with a plurality of depending spring-like tabs which engage the ramp and limit the axial movement of the cap with respect to the housing.

Abstract: A choke valve safety device to prevent unthreading of the choke bonnet nut until internal pressure has been vented, comprising a U-shaped bracket that fits over a tool-engaging portion of the nut, and a bracket support securable to the choke body only in the correct position.

Abstract: A latch cam and groove-type quick disconnect coupling includes a tubular socket having radial openings therethrough on opposite sides thereof, and a latch cam receiving third opening extending radially therethrough at a location circumferentially equidistant from said radial openings. A tubular adapter insertable in the socket carries arcuate recesses in its outer surface at locations alignable with the three radial openings at the time of such insertion. Two coupling handles are pivotally mounted on the socket outer surface, and carry cam heads projectable through said first mentioned pair of radial openings, and into two of said arcuate recesses in the adapter. A latch cam element pivotally mounted on the outer surface of said socket adjacent the third opening through the socket includes a tip which projects through the third opening in the socket, and is selectively movable into one of the arcuate recesses in the adapter.

Abstract: A deformable sealing member is disposed between two surfaces such that a space is provided to at least one side of such sealing member. A smaller space may be provided to a second side of the sealing member. The sealing member is conformed to contact both surfaces. A pressure coming from the direction of the greater space between the two surfaces will cause the sealing member to deform into greater compliance with the two surfaces. However, should pressure reverse and approach the seal from the opposite direction the seal will distort into the area of greater space thereby causing the seal to break contact with one of the surfaces and for such pressure to vent past the seal.

Abstract: A coupling device for fluid conduits comprising a tubular male member and female sleeve member, each having a hose end and a coupling end, the coupling ends being adapted to couple the members to form a fluid-tight joint, a shoulder on the male member intermediate its ends, the members having aurbaces for positioning the same with the bores thereof in communication and substantial axial alignment, latching members on the sleeve member comprising a plurality of flexible fingers having radially inwardly directed lips, and cam lock comprising a lock ring positioned around the outer surface of the latching member and moveable rotationally and axially thereof through rotational force applied thereto into and out of a position wherein said lips are forced and maintained in position for a locking relationship with said shoulder, said cam lock further comprising cooperating helical cams on said latching member and said lock ring.

Abstract: A coupling for a pressure or vacuum fluid system having a bowl and filter head (10, 26) that connect together by relative rotation to engage bayonet coupling formations (32, 34, 94) thereof. When connected together the bowl (10) and filter head (26) have outer walls (16, 104) overlapping with an intervening seal (22) therebetween. A pressure relief valve (38) is provided in one of the members (10). A latch (36, 108) engages at an angular position of said members (10, 26) where the bayonet coupling is established to prevent relative rotation of said members (10, 26) and is prevented from engagement at other angular positions. The latch (36) is decoupled from the valve (38) when in its engaged state but is operatively coupled to the valve (38) when in a disengaged state to open said valve (38), fluid flow therethrough providing an audible warning when a pressure differental exists across the valve (38).

Abstract: A circumferential safety latch clamp for securing a pair of pipe members together operated by a lever actuator wherein a lever is pivotally mounted upon one end of the clamp band positionable between a latch position and an open position having portions releasably engagable with an anchor mounted on the other end to draw the band ends toward each other. A retainer assembly limits movement of the lever in the opening direction to a safety release position whereby the lever portions maintain engagement with the anchor limiting displacement of the band ends away from each other allowing partial expansion of the clamp band.

Abstract: A fluid conduit coupling adapted for quick connect and disconnect without special tools, and in which a safety latch is provided, comprises a first coupling body having a flanged end; a second coupling body sized and adapted to be joined with the first coupling body; a jacket mounted on the first coupling body and radially spaced apart therefrom; and a resilient locking element attached to the second coupling body and having fingers sized to fit into the space between the jacket and the first coupling body which have angular unions which engage the flanged end of the first coupling body when the coupling bodies are fitted together.

Abstract: A blood-down conector assembly is described which employs a rotatatable cap for controlling the axial movement of the conducit in the connector housing between the sealed and bleed-down positions. The cap is mounted concentrically over the housing for both rotational and axial movement with respect to the connector housing. The cap includes a wall portion which is formed to engage a retainer associated with the connector assembly for retaining or maintaining the conduit in the housing. The housing is formed to provide a ramp of varying axial length and the cap is formed with a plurality of depending spring-like tabs which engage the ramp and limit the axial movement of the cap with respect to the housing.

Abstract: A pipe connector load element interconnects a pipe element and a connector retention member. The load element is mounted in an annular groove on the outer circumference of the pipe element and in a groove adjacent to an internal bore in the retention member to secure the retention member to the pipe element. The load element includes a plurality of elongated components each having a slot extending lengthwise, and a flexible ribbon for threading through the slots. A pair of retention members are interconnected to connect a pair of pipe elements in an end-to-end arrangement.

Abstract: A safety connection for connecting a plug into a tubular member, the tubular member having an internal sealing surface, an internal recess positioned outward from said internal sealing surface, said recess ending in inwardly extending lip with a plurality of slots therethrough and external threads; a plug having a body with a plurality of radially extending pins positioned to pass through said slots in said lip, a radially extending flange and a pin extending radially outward from the plug at a position immediately axially inward of said flange and being out of axial alignment with said pins and sized to fit within one of said slots to position said plurality of pins out of alignments with said slots; and a securing ring having an inwardly extend flange for surrounding the exterior of said plug on the exterior side of said plug flange and internal threads for engaging the external threads on said tubular member to secure said plug in said tubular.

Abstract: A safety connection for connecting a plug into a tubular member such as in a passage of a choke or valve body, the tubular member having a threaded port extending into the interior of the passage, a plug body positioned within said passage and having an external groove being aligned with the opening of the port into the interior of the passage, a threaded plug positioned within said port, and having an inner end engaging within the external groove in the plug body, sealing means between said plug body and the interior of said passage, means for sealing between the interior of said threaded plug and the threaded port, a vent opening extending through said threaded port and being sealed by the seating of said threaded plug in said threaded port, the partial unthreading of said threaded plug outwardly in said threaded port opening the vent opening for venting pressure from within the tubular member while maintaining the inner end of the threaded plug in engagement with the groove in the plug body to retain it in

Abstract: A seal for a fitting adapter for fluid couplings wherein a coupling probe is received within a recess within the other coupling half and the seal prevents the creation of subatmospheric pressures during withdrawal of the probe. The seal includes a lip or flapper valve component which establishes sealing during coupling pressurization, and permits atmospheric pressure to flow around the lip during coupling disconnection.

Abstract: A coupling for use with an insert. The coupling including a latching sleeve unbalanced under pressure and a release sleeve for venting pressure.

Abstract: A deformable sealing member is disposed between two surfaces such that a space is provided to at least one side of such sealing member. A smaller space may be provided to a second side of the sealing member. The sealing member is conformed to contact both surfaces. A pressure coming from the direction of the greater space between the two surfaces will cause the sealing member to deform into greater compliance with the two surfaces. However, should pressure reverse and approach the seal from the opposite direction the seal will distort into the area of greater space thereby causing the seal to break contact with one of the surfaces and for such pressure to vent past the seal.

Abstract: A fluid coupling particularly suitable for use with pressurized systems such as refrigeration circuits wherein the coupling parts may be quickly interconnected solely by axial insertion of the male part into the female part. Yet separation of the parts is controlled by a threaded nut. An annular radially expandable and contractible retainer ring is axially positioned relative to the female part by a nut threaded on the female part and the male part includes an annular shoulder which radially expands the retainer during insertion into the female part. Upon complete insertion of the male part the retainer engages the shoulder and prevents withdrawal of the male part due to abutment of the retainer against the nut. The nut includes a retainer engaging surface for reinforcing the retainer configuration, while in another embodiment the nut aids in withdrawing the male part from the female part during uncoupling.

Abstract: A quick connect connector is disclosed. The connector includes a connector housing having a first and a second ends. A first chamber is provided in the housing between the first and the second ends for receiving a sealing member therein. A retaining collar is slidably mounted on the housing between the first and second ends of the housing and includes at least one radially deflectable locking portion thereon. The radially deflectable retaining portion is adapted to engagingly contact a flange portion of a tubing member inserted in the housing to retain the tubing member in a locked position relative to and sealingly engaging the sealing member between the retaining portion and the first end of the housing. The locking portion is received within a groove of the housing to lock the collar to the housing and secure the connection. The tubing connector is resiliently urged out from the housing and against the engaged retaining portion of the housing.

Abstract: A quick-connect fitting assembly is disclosed for releasably connecting a pair of fluid conduits in fluid communication with one another. A socket portion on one of the fluid conduits is adapted for receiving the other fluid conduit inserted longitudinally into the socket portion. A laterally-extending protuberance on the inserted fluid conduit is longitudinally restrained by a retaining assembly generally adjacent the fluid socket, with the retaining assembly including one or more resilient spring of barb members longitudinally interlocked with the inserted fluid conduit. A pair of collar members are longitudinally interconnectable with one another, either by a threaded engagement or by a "bayonet-type" engagement, to releasably restrain the assembly in a connected condition.

Abstract: A coupling for a fluid conduit under pressure has a plug carrying O-rings and inserted in a socket. A bead on the plug forms a stop for location of the O-rings. A nut rotatably mounted on the plug and held adjacent the bead has an elongated threaded annulus engaging threads on the socket so that nut rotation in either direction causes corresponding axial movement of the plug. Upon disconnection of the coupling the nut is partially backed off to remove the plug causing pressure release while the nut is still attached to the socket.

Abstract: A quick-disconnect coupling for connecting two sections of pipeline or other tubular conduit to each other, including a female coupler carrying a sleeve which is provided with at least one opening therethrough, and which has a locking handle mounted thereon for pivotation about a horizontal axis. The locking handle carries a camming head disposed at a location to project through the opening in the sleeve. The coupling further includes a tubular male adapter dimensioned for insertion into the sleeve and carrying an annular indented, concavely-surfaced groove. The concavely-surfaced groove is disposed on the male adapter at a location to afford alignment with the camming heads carried on the pivotally mounted locking handles. The sleeve also carries at the location of the openings therethrough, a spring-biased safety lever handle which also carries a camming head aligned with the annular groove in the male tubular member.

Abstract: A connection (20) for oilwell tubular joints (8 and 9) to effect a fluid tight conduit wherein one of two cooperating stop shoulders (19) of limited dimension is formed with peaks (22) and valleys (24) such that the peaks contact the other stop shoulder (18) upon full make-up of the connection so as to provide channels (24) for the escape of lubricant from between the shoulders and thereby effect a higher overload torque capacity for the connection, without sacrificing other characteristics of the connection.

Abstract: A manifold is provided surrounding the casing of a combustion chamber for a gas turbine engine, and the manifold is mounted in spaced aligned segments with couplings between the segments. Each coupling includes a removable tube connector extending between passageways forming the fuel line in the manifold. The tube connector is provided with a radial collar thereon, and a sleeve which is adapted to enclose the space between ends of respective manifold segments is also provided with a mating collar adapted to receive the radial collar on the tube connector. The sleeve is retractable over the ends of the manifold segments, and movement of the sleeve in one direction or the other will also move the tube connector by virtue of the interlocking collars. The manifold segments are provided with a second passageway for draining leaked fuel. The space defined by the sleeve is sealed, and fuel can communicate through to the second passageway for drainage outboard of the engine.

Abstract: For use with a pipe having an outer surface, a clamping structure is set forth. In the preferred and illustrated embodiment, the device utilizes a surrounding ring of solid construction having a central passage fitting over the pipe in question. An internal groove is formed in the ring. An encircling clamp means is placed in the groove which has an exposed or outer face confronting the pipe. The clamp means is fabricated with the outer face supported on a pair of spaced sidewalls which are corrugated along their length. On application of pressure to the interior of the ring, the corrugations are straightened, driving the outer face into the pipe and thereby clamping.

Abstract: A socket assembly has a socket body into which a plug assembly is insertable to either a partially engaged position or a fully engaged position. When the plug assembly is in the fully engaged position, a seal engages a leading end of the plug assembly to block the leakage of fluid. When the plug assembly is in a partially engaged position, the leading end of the plug assembly is separate from the seal to enable fluid to be vented from the socket assembly. A plurality of locking elements are movable between a disengaged or release condition in which the locking elements are ineffective to hold the plug assembly in the socket assembly, a partially engaged condition in which the locking elements hold the plug assembly in its partially engaged position in which fluid can be vented from the socket assembly, and a fully engaged condition in which the locking elements hold the leading end of the plug assembly in engagement with the seal.

Abstract: A quick connect coupling assembly includes a socket defined by a stepped bore in a body member, a tubular retainer nut threadingly received in the socket and a plug member carrying an O-ring seal that extends through the retainer nut and into the socket an axial extent whereby the O-ring seal is positioned to effect a seal relative to the plug member and an internal wall of the socket. The retainer nut having a shank portion defining circumferentially spaced apart flexible retainer fingers adapted to abut against an inclined radial shoulder of the plug member to effect its axial operative position within the socket.

Abstract: A female coupling includes an outer housing and a cartridge removably mounted in the housing. The cartridge includes a retainer sleeve which is stationary within the housing, a valve body and a spool attached to the valve body which are slidable axially within the housing, and a valve which is slidable axially within the valve body. A seal on the retainer sleeve seals a port in the spool when the female coupling is connected to a male coupling, and the spool is axially movable relative to the seal to relieve the internal pressure in the female coupling during connection and disconnection of the male coupling. A piston is slidably mounted within the valve body to assist in closing the valve during disconnection.