Abstract: A connector for use in vacuum system is configured to fluidly connect a first opening formed in a first vacuum chamber to a second opening formed in a second vacuum chamber, the first opening of the first vacuum chamber being provided within the second vacuum chamber. The connector comprises a tube and a biasing O-ring. The tube has an outer wall to define a fluid flow path between first and second ends of the tube. Towards the first end, a sealing portion of the outer wall of the tube is provided. Towards the second end, an O-ring retaining point is provided along the tube spaced apart from the second end of the tube. The biasing O-ring is provided around and tensioned by the outer wall of the tube. The biasing O-ring is moveable along the axial direction between the O-ring retaining point and a sealing position where it seals the connector.

Abstract: A method of forming a fluid resistant insulator for use in a connector includes collecting a part having a surface and electrically insulating properties. The method further includes applying a superhydrophobic sealant to the surface of the part having the electrically insulating properties. The method further includes curing the part with the superhydrophobic sealant applied to allow the superhydrophobic sealant to dry.

Abstract: A connection socket for a tubular connection includes a socket cup having a metal alloy composition and a sealing portion. A primary seal is positioned within the sealing portion. The primary seal includes an elastomeric material having a service temperature. One or more spacer rings are positioned within the sealing portion. A secondary seal is positioned within the sealing portion. The secondary seal includes a metal composition, wherein the secondary seal has a melting temperature at or above the service temperature of the primary seal. One or more locking rings are positioned within the sealing portion, wherein each of the one or more locking rings comprises a biting feature defined along an internal circumference of the locking ring.

Abstract: The present invention discloses a system comprising a hydraulic plate assembly, a hydraulic grapple pipe connection assembly, hydraulic circuit assembly, or a combination thereof to set and attach pipe connections to equipment, such as oilfield equipment and method(s) of using the system. The use of this system makes the process of attaching the connections to the pipe safe, quick and easy.

Abstract: A pipeline unit (1) comprising a pipe member (2) and a pipe coating (3) surrounding the pipe member (2), which pipe member comprises a pipe end (4), and which pipe coating (3) extends along a length of the pipe member and ends at a coating end face located at a distance from the pipe end, wherein a bonding member (8) is provided on the coating end face, which bonding member (8) is attached to the coating end face and made from a material which is different from the material of which the pipe coating (3) is made.

Abstract: A flow passage connecting apparatus for a heat exchanger includes a boss formed of a resin material in a columnar shape and having a plurality of through-holes for each receiving from one side one end of a heat exchanger tube made of a resin material, and a coupler made of a resin material and having a body portion formed in a circular cylindrical shape. The body portion is configured to receive therein a part of the boss on the other side opposite to the one side and to be connected to the boss by at least one of threaded engagement and full-circle welding. The connecting apparatus further includes first and second seal structures sealing between the boss and the body portion. The body portion has a communication hole formed at a position between the first and second seal structures to communicate between an inside and outside of the body portion.

Abstract: A threaded adaptor has a first end and an opposite second end of a generally hollow cylinder. At least one end has threading for connection to a hose or fitting and the ends form the male half of the connection. Centered upon the adaptor, a collar provides at least two faces for gripping of the adaptor by a tool. Within the adaptor, the two ends open into a smooth chamber that allows for uninterrupted fluid flow. To further seal the adaptor, at least one O-ring and at least one gasket are provided as alternate embodiments. In another alternate embodiment, the adaptor has one threaded end, an opposite barbed end with a clamp, and a collar with six faces. These two ends open into a chamber with a stepped diameter. The adaptor provides for flow of fluid with little turbulence.

Abstract: A flexible, water tight seal for a movable component. The seal has a border plate sandwiched between two sealing gaskets. The seal is compressed between two components that remain out of contact with each other. The seal is installed axially between the components. For components having circular contact areas, the seal can be constructed from a washer sandwiched between two O-rings. The components float on the compressed seal to allow some flexibility between the components while maintaining a water tight seal.

Abstract: A connection system for carrying a refrigerant may provide a hybrid redundancy in sealing a refrigerant flow from the surround system environment. The connection system may include a first sealing ring of a first type and a second sealing ring of a second type positioned downstream from the first sealing ring. In some embodiments, the first sealing ring may be in a groove positioned around the outside diameter of a male fitting. The second sealing ring may be positioned at an interface between the male fitting and a female fitting. In some embodiments, flanges of each fitting define the interface so that the second sealing ring may be positioned between the flanges of each fitting. The second sealing ring may be selected from a material that has a wider range of operating temperature than the first sealing ring so that in the event of failure in the first sealing ring, the second sealing ring may prevent leakage.

Abstract: A marine riser assembly having a first tubular member having an external surface with a plurality of first axially spaced formations, a second tubular member having an external surface with a plurality of second axially spaced formations thereon, a segmented ring in surrounding relationship to the first and second tubular members, the segmented ring having an inner surface with a plurality of formations engageable with the formations on the first and second tubular members, the engageable formations serving to urge the first and second tubular members toward each other when the segmented ring is subjected to radially inwardly directed compressive forces, a sleeve in surrounding relationship to force the engageable formations together and a seal assembly for sealing against external and internal pressure.

Abstract: A stub connection for a heat exchanger that is arranged in a housing. The stub connection includes a first part which is fastened to the heat exchanger and a second part which has a stub shank extending through an opening in the housing and is seated in a hole of the first part. The stub connection also includes at least two seals. The first seal is an annular seal, which is seated in a groove of the stub shank and the second seal is a gasket, which is arranged between the opening, the stub shank, and the first part. The first seal is seated in the hole and seals between the stub shank and the first part.

Abstract: A pressure regulation system for a high pressure swivel comprises an annular inner wall and an annular outer wall, mutually rotatable around an axis, defining a toroidal chamber, and a gap extending axially between the walls from the chamber to an outer part. Positioned in the gap are an isolation seal, an isolation gap section, a primary seal, a primary gap section and a secondary seal. A first pressure control unit is connected to the chamber and to a pressurization device coupled to the isolation gap section for supplying fluid to the isolation gap section from the pressurization device.

Abstract: The present invention relates to a connector for fluid lines having of a coupling part that can be plugged together with a counter-coupling part along a plug-in axis. A locking device releasably locks the coupling part together with the counter-coupling part. The locking device includes a radially elastically deformable holding element held outside on the coupling part and at least partially encompassing it circumferentially. The holding element interacts with the coupling part, when positioned on the coupling part, via a fixation structure, such that said holding element can optionally be oriented in different relative rotational positions and be fixated in each case to prevent a free, unrestricted rotation about the plug-in axle (X) relative to the coupling part.

Abstract: A tube seal includes a tube through hole, a pressure housing tube seal penetration cavity for an elastomeric interference seal, a ferrule sealing surface for a ferrule, and an internal channel for a backing nut. A tube penetrates through the backing nut, the ferrule, the elastomeric interference seal and the tube through hole.

Abstract: A fitting for connecting a hose to ports of a water filter bypass valve, the hose having an inner diameter less than that of the ports. The fitting includes a unitary base member, a second end connector, and first and second washers. The base member includes a first end connector securable to either of the ports, a neck having a truncated cone shaped inner wall, and a second end having a first outer diameter with a disk shaped flange extending outwardly to a second outer diameter greater than the first outer diameter. The second end connector has a radially inwardly extending flange disposed around the base member second end with and inner diameter greater than the first outer diameter and less than the second outer diameter of the base member second end. The first and second washers are in the first and second end connectors, respectively.

Abstract: O-ring/back-up ring systems that are suitable for use in high pressure applications, including those of 70 MPa automotive hydrogen storage applications, to form a seal between first and second connector bodies. Such sealing systems comprise a back-up ring having a base portion and a flange portion, wherein such ring is configured to prevent extrusion of an O-ring into a gap existing between the back-up ring and a groove into which the back-up ring and O-ring are disposed. High pressure gas storage systems comprising such sealing systems, and methods of sealing a connection in a high pressure hydrogen storage system using such sealing systems.

Abstract: A contamination resistant connecting system includes, a first conduit, a first connector in operable communication with the first conduit, a first seal configured to seal at least part of the first connector from an environment, a second conduit operationally connectable with the first conduit, a second connector in operable communication with the second conduit that is operationally connectable with the first connector and a second seal configured to seal at least part of the second connector from an environment. Additionally, at least one piercing device is configured to pierce through the first seal and the second seal to allow operational connection of the first conduit with the second conduit.

Abstract: A removable and reusable multiple application fitting is disclosed that enables removal of the hose without significant damage to the hose. The removable and reusable multiple application fitting properly seals with hoses made of only one compound, such as rubber, as well as hoses of multiple compounds with or without linings, such as a rubber hose with a plastic lining. The multiple application fitting has a taper step and o-ring step to guide a hose over an installed o-ring to prevent the o-ring from being displaced during installation. The multiple application fitting is versatile and in some embodiments is used with hoses that require o-rings, and in other embodiments used with hoses that do not.

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 filtration system comprising a tank-like housing, accommodating a filtration assembly secured within the housing and extending between a respective raw fluid inlet port and a filtered fluid outlet port. The filtration assembly comprises one or more filter units secured over a main pipe disposed within the housing and configured between a fixed, operative position, and a manipulating position. The housing is configured with at least one re-sealable opening on a side wall thereof, through which the filter units are serviced at the manipulating position.

Abstract: A device for pivotably connecting a hydraulic line to a hydraulic brake of bicycle is provided an adapter including a connector coupled to the hydraulic line, and a hollow cylinder at one end of the connector, the cylinder including a tunnel and two shoulders each at a joining portion of either end of the tunnel and adjacent end of the cylinder, a first sealing ring at one shoulder, and a second sealing ring at the other shoulder; and a stepped-diameter threaded fastener including a head, a threaded shank distal the head, and a bare cylindrical section between the head and the threaded shank, the threaded fastener driven through the tunnel into the hydraulic brake to fasten the threaded fastener, the adapter, the first sealing ring, and the second sealing ring together. The adapter can either counterclockwise or clockwise pivot a predetermined angle about the threaded fastener.

Abstract: A press-on fitting for tubing, piping and conduit is provided with an abutment seal to enhance liquid-tight and gas-tight performance, unitary seals to facilitate removal and installation of the seals, and a color-coded hand-manipulable retention cap to allow for tool-less removal and replacement of the collet to allow for ease of withdrawal of an installed tubing, pipe, or conduit, and to allow for color coding of the retention cap to indicate contents, pressure, safety, temperature, etc.

Abstract: A tubular connection has first and second tubular members having aligned bores with a common axis and having first and second seal surfaces, respectively. A metal seal has a first end portion that sealingly engages the first seal surface and a second end portion that sealingly engages the second seal surface. The metal seal has a sidewall with at least two folds. One of the folds defines an axial interior gap. The other of the folds defines an axial exterior gap. An exterior spacer member is positioned in the exterior gap to limit closer of the exterior gap in response to a greater pressure on the interior of the seal than on the exterior. An interior spacer member is positioned in the interior gap to limit closure of the interior gap in response to a greater pressure on the exterior of the seal than on the interior.

Abstract: A fluid coupling 10 includes a first coupling member 11 and a second coupling member 12. The coupling members 11 and 12 are longitudinally movable relative to one another between first through fifth configurations illustrated in FIGS. 1-5 during a connection and disconnection sequence. The coupling 10 uses a locking sleeve 68 and locking balls 67 to facilitate connection and disconnection without tools. The coupling member 11 includes O-ring seals 26 and 27 carried on a sealing portion 24, and the locking balls 67 are radially spaced from the seals 26 and 27 during the connection and disconnection sequence to eliminate seal damage during the sequence. The first coupling member 11 includes a valve mechanism 41, 42, 43 and a fluid filter 46, and the valve mechanism is retained in place by the fluid filter 46. Cooperating valve mechanism 41, 42, 43, 63, 64, 65 includes a self-aligning valve poppet 64.

Abstract: Fittings with redundant seals for aircraft fuel lines, fuel tanks, and other systems. A representative fitting includes a first member having a flange and a barrel. The barrel further includes a passageway. A first flange seal is positioned at a face of the flange and can be sealably coupled to a surface, for example, a tank wall. A second flange seal is disposed outwardly from the first flange seal to seal against the surface. The fitting further includes a second member positioned within the passageway of the barrel. The fitting further includes first and second barrel seals positioned between the barrel and the second member.

Abstract: A method of checking a membrane filtration module of a filtration plant, where the membrane filtration module includes a discharge pipe for the filtrate and a membrane element for filtering a liquid, and includes filling the membrane filtration module with a liquid, so that the membrane element is completely immersed in the liquid, and introducing compressed air into the discharge pipe.

Abstract: A conveyor and a dowel assembly. The dowel assembly may generally include a dowel body positioned between the frame and the housing and a seal arrangement. The seal arrangement may include an end seal member engageable with the end wall of the recess, and a side seal member engageable with the side wall of the recess, and a carrier member supported by the dowel body and supporting one of the end seal member and the side seal member, the carrier member being supported for movement relative to the dowel body to provide engagement of the one of the end seal member and the side seal member with the associated one of the end wall and the side wall.

Abstract: A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations.

Abstract: A system, in certain embodiments has, a fluid seal having a seal body, including a seal interface having one or more engagement portions, a first elastomer portion disposed along the seal interface, and a second elastomer portion disposed along the seal interface, wherein the first and second elastomers have material properties that are different from one another.

Abstract: A fitting assembly is provided that includes a bracket comprising at least one fitting having a first opening and a second opening, in which the second opening includes at least one ledge on an inner sidewall of the fitting and the first opening is interconnected with a first tube, in which the bracket, the fittings and the first tube are a unitary structure. A seal assembly is present in the second opening of the at least one fitting of the bracket, and a second tube in engaged to the seal assembly. The seal assembly includes a frictional bore surface and at least one gasket, which are in contact with the second tube.

Abstract: A device for the sealing connection of a pressure hose with a grip element of a surgical instrument. The device comprising at least one sealing element that, in an assembled state, is interposed between the grip element and the pressure hose in a connecting region to create a seal. A support element is provided and arranged in the connecting region in the interior of the pressure hose such that the sealing element is clamped, or can be clamped, between the support element and the pressure hose on one side and the grip element on the other side. In addition, a handle for a surgical device, in particular a cryogenic surgical instrument, comprising a grip element for holding the surgical instrument and comprising at least one pressure hose that is connected, or can be connected, with the grip element via the device for the sealing connection.

Abstract: A connector is lowered onto and secured to a subsea member, effecting a seal between subsea member and the connector. The connector includes an outer body defining a cavity, and an inner body defining a bore, wherein the lower end of the inner body resides within the cavity. The connector also includes an engaging member coupled to the outer body and adapted to engage the subsea device, the engaging member radially movable between a disengaged position and an engaged position. The connector includes a seal carried by the inner body and adapted to form a seal between the bore and the subsea device. Finally, the connector includes a pre-loading member coupled to the outer body, operable to urge the inner body and seal against the subsea device to exert a pre-loading force on the seal. A differential pressure between the bore and a subsea environment energizes the seal.

Abstract: A rotating union communicates with a rotor member and is operable with either compressible or incompressible coolant media that enters the union through a media inlet. The union includes a housing having a counterbore and a tubular carrier member axially moveable in the housing. The union includes a primary seal assembly having a rotating seal member mounted to the rotor member and a non-rotating member mounted to the carrier member and a secondary seal member positioned about the carrier member. The range of the balance ratio of the primary seal assembly is disclosed when the primary seal assembly has imposed upon it a closing force, an opening force or no force.

Abstract: Pipe joints and methods for connecting a first pipe to a second pipe are provided. The joint includes a first pipe and a second pipe. The first pipe includes a hollow pin member positioned at about an end of the first pipe. The second pipe includes a hollow box member positioned at about an end of the second pipe. The hollow box member is further configured to at least partially surround the pin member of the first pipe. The joint also includes a first ring placed adjacent an end of the hollow pin member and a second ring engaged with the box member. The second ring substantially axially abuts against the first ring and the first ring substantially axially abuts the box member. The second ring further generally extends from the first ring in a direction opposite to the end of the pin member adjacent to the box member.

Abstract: A conduit fitting includes first and second fitting components that can be joined, and at least one conduit gripping device that can grip and seal against an unjacketed portion of a metal conduit when the first and second fitting components are pulled up on the metal conduit. The conduit fitting further includes a sealing element and a seal engaging member that can be joined with at least one of the metal conduit, the first fitting component, and the second fitting component to compress the sealing element against a jacketed portion of the metal conduit.

Abstract: A quick connector with sealing capacity for preventing the leakage and penetration of fuel and the entrance of foreign matters, such as mud, and water past a retainer. The quick connector includes a housing (12) internally provided with first sealing rings (29) and (30) for sealing a gap between the metallic surface of an uncoated end part of a tube (16) and the inside surface of the housing (12), and second sealing rings (33) and (34) for sealing a gap between the surface of a coated part of the tube (16) and the inside surface of the housing (12).

Abstract: A rotary joint of the present invention maintains cryogenic temperature of a supplying refrigerant flowing through a fluid passage, and makes available to lubricate a seal face by the supplying refrigerant as well as to minimize a running cost for the refrigerant.

Abstract: A pipe coupling 10 for coupling to a pipe end. The coupling including first and second body parts, a grip ring, an O-ring seal and a sleeve. The first and second body parts are aligned axially and define a cavity into which a pipe end can be inserted. Each of the grip ring and the O-ring are located within the cavity. The grip ring grips the pipe end against retraction from the cavity and the O-ring seals against the outer surface of the pipe end. The sleeve extends circumferentially about the first and second portion body parts and engages the body parts to resist movement of the body parts axially away from each other.

Abstract: A shunt system quick connector assembly to quickly connect and disconnect a catheter to a hydrocephalus shunt system comprising a valve in a valve housing. The catheter is affixed to the quick connector assembly. The quick connector assembly snaps over an external barb on the valve housing of the shunt system with an audible sound, so that the surgeon knows that connection has been made. The connector assembly can be operated quickly, minimizing the time for the surgical procedure and the opportunity for infection. The connector assembly has smooth surfaces to minimize the growing of tissue into the connection.

Abstract: A plug connection, including a plug connector and a socket for an implantable medical device, and further including a sealing element which is sheared along the axis of the plug connector and which seals the lumen formed by the socket and the proximal end of the plug connector against the environment.

Abstract: A rotating union communicates with a rotor member and is operable with either compressible or incompressible coolant media that enters the union through a media inlet. The union includes a housing having a counterbore and a tubular carrier member axially moveable in the housing. The union includes a primary seal assembly having a rotating seal member mounted to the rotor member and a non-rotating member mounted to the carrier member and a secondary seal member positioned about the carrier member. The range of the balance ratio of the primary seal assembly is disclosed when the primary seal assembly has imposed upon it a closing force, an opening force or no force.

Abstract: A sealing washer, comprising a rigid body having opposite, disc-shaped surfaces defining parallel planes, and a central opening defined through the rigid body along a central axis thereof; and multiple, concentric, polymeric sealing rings projecting away from the plane defined by each of the disc-shaped surfaces of the rigid body, the sealing rings being generally coaxial with the central axis, and each sealing ring being deformable in response to compression forces applied to the plane defined by each disc-shaped surface.

Abstract: A fluid connection assembly (10) includes a metal tube (22) having a flared end and a plastic manifold (12) having a port (14). The port (14) includes an annular collar (16) and an annular recess (18) that receives a seal (20). The metal tube (22) is arranged over the port (14) and engages the seal (20). The flared end of the metal tube (22) abuts the annular collar (16) of the port (14) when the metal tube (22) is installed. A plastic retainer (28) is molded over the annular collar (16) of the port (14) and the flared end of the metal tube (22) to retain the metal tube (22) axially on the port (14) of the manifold (12).

Abstract: A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations.

Abstract: A connector connects the ends of two fluid lines, it is useful for connecting and sealing the ends of refrigerant lines in an automotive air conditioner. A resilient seal is disposed about the end of a fluid line within each end of the passageway and a combination slotted ferrule and sealing ring member formed with a sealing ring portion and a ferrule portion is captured between the seal and a compression nut treaded onto the end of the body.

Abstract: A seal has a tight sealing between a first space and a second space. The second space is at least partially enclosed by a member. The apparatus includes or performs creating or maintaining a pressure difference between a pressure in a third space at a seal assembly and pressure in each of the first space and the second space; and pushing, caused by the pressure difference, against a seal in the seal assembly to tighten sealing provided by the seal.

Abstract: A quick connector coupling has either a linear or an angled female coupling member, a male coupling member which is attached to a radiator, a bushing, a sealing means, and a locking ring, which maintains the connection of the male coupling member and the female coupling member. The male member has at least one chamfered surface, which is complementary to a chamfered surface on the bushing element. The locking ring is disposed around the female coupling member and has a plurality of indentations which pass through apertures positioned around the collar end of the female member. These indentations interconnect with an annular groove around the male member when coupled to the female member, securing the connection.

Abstract: A subsea coupling comprises a male coupler having a probe and a female coupler comprising a socket for the reception of the probe. The couplers each include a valve which is openable on mating of the couplers to provide communication with the socket. The socket includes a recess accommodating an annular seal for providing a radial seal between the probe and the socket. In one embodiment the leading edge of the probe includes at least one relief channel for allowing the escape of hydraulic fluid entrapped between the probe, the seal and the recess when the couplers are made up. There may be a stand-off ring disposed between one end of the recess and the inner side of the seal. In another embodiment the relief channel is provided in the socket.

Abstract: A flanged joint for a pressure medium. The flanged joint includes a first component and a second component having an interior. Also included is at least one flat gasket held between facing surfaces of the first and second components. An annular groove and a radially opposed working diameter are located between the interior and the at least one flat gasket. At least one lamella ring is held in the annular groove and biased, essentially without a gap, against the working diameter.

Abstract: A fitting includes a body having at least two portions coupled together to form a body having a passage through the body. The passage allows at least a portion of a conduit to be located at least substantially lengthwise within the body. First and second ports are located on the body and are in fluid communication with the passage. A first seal is located on the passage wall between a first end of the body and the ports. A second seal is located on the passage wall between a second end of the body and the ports. The first and second seals provide a seal between the outside wall of the conduit and the inside wall of the body. A channel is formed in the body to allow fluid flow at least partially circumferentially in the body between the first port and the second port.