Abstract: An apparatus for connecting two pipes in fluid communication includes a connector body having opposing open ends with each open end configured for receiving a free end of a pipe. A mechanical interlock arrangement prevents or limits axial movement of the connector body relative to a free end of a pipe when the free end of the pipe is received in an open end of the connector body. A mechanical seal arrangement provides a metal-to-metal seal between a pipe inserted into one of the open ends and the connector body.

Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.

Abstract: A seal configured for use in a chiller refrigeration system is provided including a first flange and a second flange. The first flange and the second flange are coaxially aligned and in direct contact. The second flange includes at least one groove within which a first sealing mechanism and a second sealing mechanism are positioned. The first sealing mechanism and the second sealing mechanism are separated by a distance such that a chamber configured to receive a pressurized gas is formed between the first and second sealing mechanisms.

Abstract: A coupling for support members includes a sleeve-like coupling sleeve having screw-in openings that proceed from two opposite sides and are each provided with an internal thread. A radially inwardly directed mounting protrusion is formed between the two internal threads in the screw-in openings on the inner side of the coupling sleeve. A radial recess is formed in each case between the mounting protrusion and the internal threads, the recess adjoining a runout of the adjacent internal thread. An elastically deformable sealing ring is inserted in each case into the two recesses. In the unloaded state of the sealing rings, the outside diameter thereof is greater than the inside diameter of the mounting protrusion and/or greater than the core diameter of the internal thread. The coupling has a clamping ring, the outside diameter of which is smaller than or the same as the inside diameter of the mounting protrusion.

Abstract: A waxless modular seal prevents leaks in the connection between the base of a toilet and the drain pipe. The waxless modular seal comprises a rubber portion and a resiliently compressible toroid-shaped foam ring, both of which are, in combination, designed to replace a traditional wax seal. The waxless modular seal captures the foam ring between an upper sealing ring and a lower sealing ring. Each sealing ring and the foam ring comprises a protrusion and at least one vertically disposed aperture, the apertures being sized sufficiently so as to allow a fastener to pass through the apertures. The foam ring may comprise a plurality of foam rings.

Abstract: A method for forming a fluid tight seal is disclosed. The method may make use of a first component having a first sealing surface, and a second component having a second sealing surface. The method may further involve coating one of the first and second sealing surfaces with a metallic film layer adapted to transform into a liquefied metallic layer when a temperature of one of the first and second surfaces exceeds a melting temperature of a metal used to form the metallic film layer. Once it becomes liquefied, the liquefied metallic layer forms a pressure-tight seal between the sealing surfaces.

Abstract: A method comprising forming a partial barrier in an outer part of a flange joint, applying a sealant to the outside of the flange joint, and supplying a safe sealing fluid to an inner part of the flange joint, prevents a process fluid from leaking out through a flange joint, advantageously without having to dismantle the flange joint.

Abstract: Steam wrinkle-removing appliance including a steam-producing base in which the steam can freely flow out through a hose to a wrinkle-removing tool such as a steam brush, characterized in that the hose is connected to the base by a swivel connector fitted into an adapted housing of the base and in that the steam tightness of the swivel connector is ensured by at least one circular rib (122A, 124) borne by the housing or by the connector, the circular rib (122A, 124) being fitted into a corresponding circular groove (80, 81), respectively provided in the connector or the housing, the width of the groove (80, 81) being slightly greater than the width of the rib so as to result in a gap allowing the connector to rotate freely in the housing.

Abstract: A coupling apparatus that may have a first component having a first sealing surface and a second component having a second sealing surface. The first and second sealing surfaces are in facing relationship with one another when the first and second components are coupled together. One of the first and second sealing surfaces has a metallic film layer that transforms into a liquefied metal layer when the metallic film layer is exposed to a temperature that exceeds a melting temperature of a metal from which the metallic film layer is formed. The liquefied metal layer forms a seal between the sealing surfaces.

Abstract: A pressurized water container for water fountains, ponds, swimming pools, and aquariums has at least two housing parts and at least one seal arranged between the at least two housing parts, wherein the at least two housing parts are connectable to one another in a lockable way. The at least two housing parts have projections and matching recesses, wherein the projections engage the recesses and, by a displacement of the at least two housing parts relative to one another in opposite directions, they are lockable on one another and releasable from one another when reversing the displacement.

Abstract: A fluid coupling for establishing a sealed connection between a first conduit and a second conduit. The second conduit has a seal seat and a compression member. The compression member is movable relative to the seal seat. A seal is positioned in the seal seat. An engagement mechanism moves the compression member toward the seal seat to compress the seal to form a sealed fluid connection. The engagement mechanism has an input arm hinged to the compression member at a hinge connection. The input arm has a compression lever fixed at an angle to the longitudinal extent of the input arm. The input arm is arranged to push against the compression member as the input arm rotates about the hinge connection to the compression member.

Abstract: A method for sealing an opening formed in a cover film welded to a fluid retainer at a position corresponding to a covered area of an ink inlet hole. A sealing member, which seals the opening, is a laminated film including a first film and a second film. The method includes preparing the laminated film, placing the laminated film on the fluid container with the first film facing the fluid container in such a manner that the laminated film covers the opening, and sealing the opening with the laminated film by heating the sealing member covering the opening from the side corresponding to the second film to melt the first film.

Abstract: A rotary union includes a non-rotating machine component having a receiving counterbore, a media channel opening, and a control channel. A housing is positioned within the receiving counterbore and has a bore and a control chamber in fluid communication with the control channel. A non-rotating seal member is slidably and sealingly disposed within the bore in the housing and has a media channel in fluid communication with the media channel opening and the receiving counterbore. The non-rotating seal member can be selectively extended or retracted within the bore of the housing, such that selective engagement of a face seal is accomplished under different operating conditions of the rotary union.

Abstract: A flange of a first pipe and a flange of a second pipe are connected via the flanges. An annular seal groove is formed in the flange surface of the flange. A sealing liquid is poured and placed in the seal groove from a sealing liquid pouring section via a pouring passage. The sealing liquid placed in the seal groove forms a seal groove forms a liquid seal structure to improve sealing ability. Further, the sealing liquid is placed also in a discharge passage and a discharge pipe. When gas in the pipes enters the seal groove, the gas can be discharged from a discharge device and detected by a gas sensor to enable the user to take safety measures.

Abstract: A fluid coupling for establishing a sealed connection between a first conduit and a second conduit that has a seal seat and a compression member. The compression member is movable relative to the seal seat in which an annular seal is positioned. An engagement mechanism moves the second conduit from a disengaged position where there is no sealed fluid connection between the first and second conduits, to an engaged position where the compression member moves toward the seal seat to compress the annular seal to form a sealed fluid connection.

Abstract: A female hydraulic coupling member includes a bidirectional, pressure-energized probe seal for sealing between the body of the female coupling member and the cylindrical probe section of a male coupling member seated in the receiving chamber of the female member. In one embodiment, the pressure-energized seal comprises a first curved section which is oriented towards the external end of the receiving chamber in which it is installed and a second curved section oriented towards the interior end of the receiving chamber. The two curved sections are joined by a substantially straight back section. When the pressure of fluid within the coupling member is above the ambient fluid pressure, the first curved section is pressure-energized so as to increase its sealing effectiveness. When external pressure (e.g., the hydrostatic head) exceeds the pressure of fluid within the coupling member, the second curved section is pressure-energized so as to increase its sealing effectiveness.

Abstract: A plumbing connector for connecting plumbing pipe includes a housing having an inner surface substantially conforming to an outer surface of a plumbing pipe. A glue channel is formed within the housing, near to its open end, and located along the inner surface of the housing. A glue filling inlet is formed through the housing and accessible from the outside of the housing in fluid communication with the glue channel, the glue filling inlet being adapted to allow glue to pass therethrough and into the glue channel. Preferably, at least one air escape outlet is formed through the housing and in communication with the glue channel. When the housing is mounted on a pipe segment and glue is introduced via the glue filling inlet, air trapped inside the glue channel exits via the air escape outlet. A transparent section of housing or a window is preferably provided above the glue channel.

Abstract: The present invention relates to a device for blocking liquid and/or vapour flow from a hose and positioning of a hose breakage to a coupling in the hose, for example the end of the hose, at a nozzle, for example a pump nozzle, the coupling comprising a female part (1) and a male part (2, 16) which are releasably fixed in one another by means of a number of hooks (17), as well as a valve cone (11) which is disposed to block at least liquid flow out of the hose in the event that the female part (1) and the male part (2, 16) are separated from one another, the male part including an inner housing (2) which extends through an outer housing (16) which is axially movable on the inner housing (2), and the inner housing (2) supports the valve cone (11) and displays a valve seat which is intended for the valve cone (11) provided with through-flow openings (14).

Abstract: A retaining member (10) for retaining a tube in a circuit element, includes a carrier portion (10; 30) from which there extends at least one lateral anchoring member (14, 33) for anchoring the tube, the carrier portion being substantially in the form of a continuous annulus and presenting an active transverse direction (12, 36) on which the anchoring member is disposed and an inactive transverse direction (15, 37) on which the carrier portion does not have anchoring members and presents a smallest outside dimension. A circuit element including such a retaining member is also disclosed.

Abstract: A pipe joint includes at least a first and a second pipe. A section of the first pipe is opened out and a further section of the second pipe is inserted into the section, so that both pipes overlap in an overlap region. A gap is formed between the section and the further section, into which gap a free-flowing sealing medium can be introduced via an input passage. In the method, a first and a second pipe are fitted together, a sealing medium is introduced into the gap between the pipes via an input passage, air located in the gap escaping via at least one output passage, and the input passage and the output passage are closed. The sealing medium, preferably an epoxy-resin/glass-fiber mixture, ensures especially effective sealing of the pipe joint and also an especially stable frictional connection between the pipes.

Abstract: The present invention provides a dialysis coupler assembly comprising a pair of rubber-like elastic tubular couplers, and a pair of joint members for joining the couplers together. Each of the couplers includes an inner channel 14 allowing a connector associated with a medical device to be fitted therein, and a smooth surface 15, 16 perpendicular to the longitudinal axis of the coupler. The couplers are adapted to be joined together through the joint members in such manner that the smooth surfaces are in liquid-tight contact with one another. Each of the joint members is adapted to be attached slidably and rotatably onto corresponding one of the couplers, the joint members having first and second engagement portions, respectively. The first and second engagement portions are disposed opposed to one another and adapted to cooperatively engage the joint members with one another so as to allow the smooth surfaces to be brought into liquid-tight contact with one another.

Abstract: A running fluid seal arrangement (10) includes a passage for receiving cable (12) with chambers (20,21 and 22). Water at a higher pressure than gas in main (11) is pumped via pump (26) into chamber (21) from a reservoir (27). A mixture of gas and water from the interface in the region of chamber (20) is passed to a sealed pressure vessel (28). Water therefrom can pass back to reservoir via float valve (29). Wiper seals (30,36 and 37) can also be provided.

Abstract: A seal arrangement for providing a seal between a nuclear reactor in-core instrument housing and an instrument contained within the housing includes a lower seal assembly surrounding an outer portion of the in-core instrument housing, an upper seal assembly surrounding an outer portion of the in-core instrument, a seal housing enclosing the lower and upper seal assemblies, and lower and upper compression assemblies positioned on respective ends of the seal housing. The compression assemblies each include a drive nut and a compression collar. The compression collars engage and apply an axial load on the seal assemblies to maintain a reliable seal between the seal housing and the outer portion of the in-core instrument housing, and between the seal housing and the outer portion of the in-core instrument.

Abstract: The invention relates to a sealing element (1) with inflatable bellows (10) for sealing piping. Said sealing element can be e.g. cylindrical in shape and said bellows (10) can be provided with two recesses (14a, 14b) containing a gel (11). When the bellows are inflated, the gel (11) encompasses e.g. uneven areas on the inner wall of the piper or cables in the pipe in such a way as to provide a seal.

Abstract: In order to provide a leak-proof coupling for a gas-carrying pipe having two pipe sections that are relatively movable, the coupling includes a first pipe section and a second pipe section that have respective coupling ends disposed in closely spaced adjacent relation to define a gap therebetween. The first pipe section has an upstream end in communication with a source of a pressurized gas and a first coupling end remote therefrom such that the upstream end receives the pressurized gas from the source and the gas then flows through the first pipe section from the upstream end to the first coupling end for discharge therefrom. The second pipe section has a second coupling end in communication with the first coupling end and receives the pressurized gas from the first pipe section and the gas then flows through the second pipe section from the second coupling end to the downstream end for discharge therefrom.

Abstract: A hose capable of carrying current to an indicator which provides external warning of imminent failure, or leak, due to wear occurring within the hose. The hose consists of an internal (primary) hose which is surrounded by an external (secondary) hose. Positioned in the annulus between the two hoses are two non-contacting electrical wires. At a point, the two electrical wires extend beyond and outside of the hoses. The protruding wires attach to a low voltage power source and to a hose failure indicator, or alarm, in series. When the internal (primary) hose fails, the fluid inside the hose escapes into the annulus between the primary and secondary hoses, making contact with the two electrical leads. This closes the circuit, thereby activating the external indicator, which may be a light or an audible signal or some other type of alarm. The external (secondary) hose is designed to withstand normal operating stress for a reasonable amount of operating hours until the hose can be replaced.

Abstract: A water purifier includes a port having a collet, an O-ring seal, and a support between the collet and the seal. The collet axially receives a tube for water passage. The support limits radial movement of the tube off the axis. The support has an L-shaped cross section having a radial leg that seats the O-ring, and an axial leg. Water purifiers are often installed in confined spaces near mechanical equipment. Conventional water purifiers installed with sharp bends in influent and effluent water tubes and exposed to equipment vibration conducted by the tubes often exhibit weeping at the port. In an embodiment of the present invention, weeping is eliminated by maintaining axial relation between the tube, the seal, and the collet.

Abstract: A pipe component seal assembly comprising a pipe system component capable of carrying a fluid under pressure and having means communicating to the atmosphere through which the fluid in the pipe system component can flow, a housing secured to the outer surface of the pipe system component surrounding the communicating means and in which a sealant under pressure is maintained in contact with the communicating means, and a charger attached to the housing and having an opening therein communicating with the interior of the housing through an opening in the housing and means to force sealant from the charger under pressure into the interior of the housing through the two openings.

Abstract: A sealing plate, divided into a first upper section and a second lower section, the sealing plate having a bore therethrough slightly larger than the diameter of the casing around the internal pipe. There is further provided a attachment members on the wall of the upper and lower sections of the plate, for attaching the sections of the plate and allowing the sections of the plate to be drawn together around the casing by the attachment members. Further, there is provided a sealing gasket that spaced between the internal edge of the bore of the plates and the outer wall of the casing, so that as a plate member is attached, there is effected a fluid seal between the outer wall of the carrier pipe and the plate members through the sealing of the gasket member.

Abstract: Disclosed is a method and apparatus for forming a liquid tight joint between the ends of conductors (pipes) in a piping system for carrying a liquid metal fluid (LiPb). The ends of the pipes are loosely telescoped to allow for misalignment and then initially cooled by coils to solidify the liquid metal fluid in the annulus between the telescoped ends so that the solidified liquid metal itself seals the joint. Suitably located insulation and cooling fins provide thermal equilibrium for the solidified liquid metal in the annulus to maintain the seal. To disconnect the joint, the joint is heated to liquefy the solidified liquid metal in the annulus so that the ends may be pulled apart.

Abstract: A tubular assembly for transferring fluids in relative isolation from the ambient environment is disclosed. The assembly includes at least two similar conduit sections. Each conduit section has contoured ends which may be frusto-conical in shape. Means for joining the two conduit sections end-to-end are provided which position conforming contoured ends in mutually confronting, spaced relationship. In one embodiment, the assembly and the interspace formed by the space, conforming surfaces are oriented such that the condensate of the fluid flowing through the assembly is trapped in the interspace thereby forming a thermal barrier between the fluid flowing through the assembly and the ambient environment.

Abstract: A fluid coupling includes inlet and outlet segments, each having a fluid carrying aperture with a major diameter fluid port at one end and a minor diameter coupling port at the other end of the segment longitudinal axis, the fluid ports being adapted for fluid communication with an associated fluid source and the coupling ports being adapted to receive each other in registration with engagement of the coupling ports by end to end abutment of the segments, the fluid apertures of the abutting segments, in tandem, forming a Venturi with the throat defined by the abutting coupling ports at the coupling interface, the coupling port minor diameter value being selected relative to the fluid port major diameter to provide a fluid pressure value at the coupling interface which is not greater than the outside ambient pressure, thereby preventing fluid escape to the ambient environment across the coupling interface.

Abstract: A clamp assembly for sealing a leaking pipe weld or pipe flange joints. The clamp comprises a collar having hinged-together arcuate segments. The collar is further provided with flanges adapted to be bolted together to connect the hinged segments which may be hinged together to form a pair of semi-circular sections. Each of the segments is provided with a main annular groove on the interior circumference with means on the exterior for filling the groove with a fluid sealant under pressure. A pair of annular border grooves spaced from the main groove are provided on the opposite sides of the main groove. Additional groove means are provided in the end walls of each of the segments which connect the main groove and the border grooves to provide a sealing means between the opposed end walls when butted together.

Abstract: A method of and apparatus for preventing fluid leaks out of a well which involves installing a blowout preventer at a wellhead, the preventer has a body with a bore communicating with a bore hole and a clamping means for controlling the passage of fluid through the bore. Means are provided for directing sealant into the bore beneath the clamping means so that when an occurrence of a blowout is sensed, the clamping means are closed to inhibit flow of fluid up the bore and a sealant is injected through the directing means into the bore so that the sealant is carried to the closed clamping means which forms a seal to insure that fluid does not leak past the closed clamping means.

Abstract: A leak repair clamp for pipe and pipe flanges includes a frame having a plurality of segments positionable in end-to-end relation around the pipe. Each segment includes spaced parallel annular lips flaring from its inner periphery with each lip being an integral part of the segment and having a bent tip portion extending toward the matching oppositely positioned tip portion of the opposite lip. A connecting means is used to connect the segments together in end-to-end relation, the lips extending from the segments to thus form an annular recess around the pipe when the segments are connected. An access means is provided in the frame to permit passage of a liquid sealant into the recess and the lips direct flow of the sealant into direct contact with the pipe to form a self-energizing seal between the lips and pipe.