Abstract: A pipe coupling has first and second segments attached end to end surrounding a central space. The segments define first and second receptacles which receive pipe elements. A port is positioned in one of the segments. The port provides access to the central space. A nipple on the segment extends from the central space and defines a bore aligned with the port. A collar on the segment extends toward the central space. The collar has an outer surface which forms a recess with an inner surface of the segment. A seal is positioned within a channel defined by arcuate keys which surround the receptacles. The seal has a body which defines a first aperture aligned with the receptacles and a second aperture aligned with the bore of the nipple.

Abstract: A press fitting assembly is provided that includes: a piping component including a receiving device which includes an open end and a shoulder, the open end comprising a continuous stop; a grip ring positioned within the receiving device abutting the continuous stop and comprising a plurality of opposing teeth; a sealing element positioned within the receiving device and abutting the shoulder, wherein the sealing element comprises at least one lobe; and a separator ring positioned within the receiving device between the sealing element and the grip ring, the ring comprises a base portion and an angled portion. Further, the angled portion is angled toward the sealing element and the shoulder.

Abstract: A quick release cable pull-in system for securing a conduit (28) in which is arranged a cable (38) to the mouth of a J-Tube (12) or other opening in a structure. The system includes a collar (30) with a groove (32) attached to the end of the conduit. A rotatable locking arm (20) releasably engages the collar when a tapered nose (34) cone is pulled into the J-Tube. The rotatable locking arm has a shoulder member (44) that is biased downward into the interior of the cylindrical opening. According to one aspect, the shoulder member is downwardly biased by an elastomeric collar (46. According to another aspect, the shoulder member is downwardly biased by a spring, by magnetic forces or other means.

Abstract: A push to connect fitting assembly includes first and second fitting components joined to define an interior cavity, a seal device, and a retainer. The seal device is disposed in the interior cavity, and seals one of the first and second fitting components with an outer surface of a conduit end when the conduit end is inserted into the outboard end of the first fitting component. The retainer is assembled with at least one of the first and second fitting components, and includes a gripping portion that engages the inserted conduit over a first surface contact area to grip the conduit end, and a colleting portion outboard of the gripping portion. The colleting portion engages the inserted conduit end over a second surface contact area greater than the first surface contact area to collet the inserted conduit end.

Abstract: The invention relates to a device for preheating at least one mold for a tire heating press, which has a coupling for applying a heating medium to the mold. The mold to be heated is enclosed by a receiving container (19), which is secured within a framework and creates the coupling for the heating medium. The device helps to provide effective preheating of the mold by an insulating shroud (2), which is positioned over the receiving container (19) during the preheating process and reduces heat dissipation into the surroundings.

Abstract: A grooved-ended resilient expansion joint is disclosed. The expansion joint has a resilient expansion member with a central resilient portion and two resilient axially disposed cylindrical ends. Each cylindrical end has a radially outwardly raised distal cylindrical gasket portion with at least one inside shoulder having an inner diameter sized substantially the same as an outer diameter of a pipe to be joined. Each cylindrical end also has a neck portion between the central portion and the gasket portion that is sized to receive a grooved-ended pipe nipple.

Abstract: A coupling arrangement that includes a gasket seal (40) and a housing (12, 14) having a first lateral side (100) for receiving a first pipe segment (4) and a second lateral side (102) for receiving a second pipe segment (2), the second lateral side (102) being spaced from the first lateral side (100) to define a medial axis (A-A) of the housing. An inner surface (22) of the housing defines a cavity for engaging and housing a gasket seal (40) disposed about the first and second pipe segments. The gasket seal (40) includes a peripheral surface (48) and inner surface (50) which can include features that engage both the housing and the pipe segments to form a fluid tight pipe joint assembly.

Abstract: In a vibration damper of a turbomolecular vacuum pump, a vacuum tightness function and a vibration damping function are both performed by one or more toroidal rings made of an elastic material. The elastic rings assume a resting configuration while the vacuum pump is not operating and the damper is at atmospheric pressure, and they assume a compressed configuration while the vacuum pump is operating and the damper is under vacuum conditions. In the compressed configuration, the elastic rings are deformed due to a compression force. This deformation of the elastic rings prevents metal-to-metal contact between the vacuum pump and a vacuum chamber to which the pump is connected through the damper.

Abstract: A seal assembly (10) comprising a sealing body (40), a shoe (42), a first collar (44), and a second collar (46). The shoe (42) is positioned within a space defined by radially inner surfaces of the sealing body (40), the first collar (44) is positioned on a first axial side of the sealing body (40), and the second collar (46) is positioned on a second axial side of the sealing body (40). These components (40, 42, 44, 46) collectively form inter-component sealing surfaces, pocket sealing surfaces, gate sealing surfaces and/or part sealing surfaces which prevent the infiltration of outside fluid into, and the escape of operative fluid from, a fluid coupling.

Abstract: A coupling element of a fluid circuit. The coupling element includes a tubular body externally provided with an annular shoulder in which a groove is provided having an end wall flanked by an outer side and by an inner side so as to receive an annular seal designed to bear against a surface surrounding an inlet orifice of a channel of a member to which the element is designed to be coupled. The body defines at least one passage for bringing the fluid into the groove so as to push the seal back against the outer surface of the groove, and against the surface surrounding the inlet orifice of the channel.

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: An adapter for retrofitting a fuel control system. The adapter has an outlet port and an inlet port for connecting to an external fuel system. The adapter replaces a standard fuel filter and fuel filter bowl.

Abstract: A packing, interposed between respective ends of electric wire tubes serving as tubular members opposed to each other, includes a main body and an elastic member. The main body is inserted through inner-diameter-openings of the respective ends of the electric wire tubes, respectively. The elastic member is situated substantially at a center of the main body and the respective ends of the electric wire tubes are abutted against the elastic member. The electric wire tubes joined with each other through the packing are inserted into the body constituting the coupling. Then, grip portions of the body are forced into a grip case. The body is thereby decreased in diameter, and hence the electric wire tubes are fastened in a biting manner by the body.

Abstract: A connector device having a housing part and a clamping ring arranged in the receiving hole and cooperating with an inner cone of the housing part to lock a plugged-in media conduit. An inner insertion piece is removably connected to a base piece and provided with the inner cone. The insertion piece has at least two radially elastic spring arms to enable removal of the conduit. Radially outward-protruding catching extensions of the spring arms engage catching holes for detaching purposes. A contamination seal is disposed in the region of free ends of the spring arms to circumferentially rest upon the media conduit. The catching extensions are disconnected from the sealing area via a deformation zone so that the radial detaching movement of the catching extensions is performed without being influenced by the contamination seal because the deformation zone is deformed.

Abstract: A subsea female coupler has a body defining a socket for the reception of a probe of a male coupler. The socket includes an annular shoulder and, outwardly of the shoulder, a part-conical seat which tapers towards the interior of the socket. An annular seal is disposed to provide radial sealing between the socket and the probe and is positioned in the annular shoulder. A metal retainer in the form of a securing ring, which has a bevelled rim for abutment with the seat, provides sealing between the region of the seal and the exterior of the body of the coupler. The retainer has a screw-threaded periphery for engagement with a complementary thread on the interior of the socket. An inner ring liner fits within the retainer and has a flange for abutting the seal.

Abstract: The pest control seal for a recreational vehicle (RV) comprises a relatively soft and resilient foam material, which is compressed into the annular opening between the conduit and a passage through the wall or panel of the service compartment of the RV, and a relatively thin, hard retainer, which is attached to the rim or flange of the hose or conduit opening or passage. The foam material and retainer may be attached to each other, or may be installed as separate pieces held in place by compression and suitable fasteners. The retainer may be formed as two semicircular components, or as a single annular piece.

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: An all metal ball and socket joint for connecting two misaligned conduits in fluid-tight communication utilizes a metal seal ring having a substantially conical bore which provides a relatively flush bore profile to fluid flowing through the seal ring. The cone angle of the conical bore is chosen in accordance with the maximum misalignment expected. The seal ring is attached to the nose of the ball member preferably by bolts. Seals are pressure energized by fluid flow. An annular o-ring groove and a pressure port can be provided to allow a back seal test to be carried out during installation.

Abstract: A system comprising, a mineral extraction component, a conduit fitting coupled to the mineral extraction component, a floating seal insert disposed in the conduit fitting. The floating seal insert comprises a feature configured to tune a fluid dynamic characteristic along a liquid flow path through the conduit fitting and the floating seal insert. Furthermore, the fluid dynamic characteristic can be shockwaves, flow rate, turbulence, etc.

Abstract: The invention concerns a device for connecting first and second air ducts using a connecting element for transferring an air stream between the air ducts, wherein the connecting element can assume various snap-in positions relative to the first air duct.

Abstract: A rotary compensating device used in a pipe under high pressure comprises an inner pipe (1), a sealing gland (3), a sealing seat (5) and a connecting pipe (7). One end of the inner pipe (1) is inserted into the connecting pipe (7), and the connecting pipe (7) is fixedly connected with one end of the sealing seat (5) and is installed on the outer surface of the inner pipe (1). The inner pipe (1) is provided with an annular outer flange (8), and the sealing seat (5) is provided with an annular inner flange (9). The sealing gland (3) is installed on the outer surface of the inner pipe (1) and inserted into the other end of the sealing seat (5) to abut against a torus sealing member (4). The sealing gland (3) connects with the sealing seat (5) via a connecting member (2). A sealing cavity is formed between the sealing seat (5) and the inner pipe (1), and an end face sealing member (6) is installed in the sealing cavity.

Abstract: An invention generally relates to an adjustable connector that acts as a coupling device to connect an object (such as pipe or tubing) having a range of diameters and thread styles to an item (such as a piece of equipment or another length of pipe or tubing). The device is generally comprised of a casing member and an internal member, which is further comprised of tab members positioned in tab openings in a core member. Preferably, a semi-flexible sheath covers the internal member and seals it to the casing member and the object, so that a chamber is formed between the internal member and the casing member. Mechanical compression members may be placed in the chamber. As pressure increases within the object, the chamber pressure may also increase, forcing the sheath against the tab members, which are forced against the object, holding the object in place by friction.

Abstract: A rotating union (10) comprises a housing (12), a bushing (14), a fluid conduit (16), an annular seal (18) and a cap (20) secured to the housing and having a fluid inlet. The bushing is received within a cylindrical recess (32) in the housing, and the fluid conduit is rotatably received by the bushing and passes through the bushing and a bore (40) in the housing. The annular seal is received within the housing recess, and sealingly engages a cylindrical outer surface (80) of the fluid conduit and the cylindrical wall (46) of the housing recess. The cap has a circular recess (104) and surrounding annular projection (106) which receives the input end of the fluid conduit. The annular seal is sandwiched between the bushing and the annular projection. When the fluid conduit rotates, its outer surface rotates under friction against the annular seal to maintain the seal.

Abstract: A metallic connector (1) comprises a female housing (2) in which a retaining ring (6) is made of a material which is harder than the female housing (2) so that the retaining ring (6) is urged into the inner wall of the female housing during a pressing operation. An annular sealing member (7) provides a water tight seal. In the connection assembly, the retaining ring (6) deforms an end of a metallic item (4) provided within the female housing to connect the female housing to the metallic item. The connection assembly is formed by a pressing operation which causes—the retaining ring (6) to deform both the female housing (2) and the metallic item (4) to be connected.

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 high-pressure connection for corrosive fluids includes a female member having a female surface and a male member having a male surface, both of which may be formed from stainless steel. The male surface is configured to have a complementary shape to the female surface. A malleable coating substantially covers the male surface and may be formed from copper. The male surface is configured to be pressed into the female surface, to sandwich the malleable coating and effect a fluid seal therebetween. The female surface may be substantially frusto-conical and the male surface substantially spherical. A supply line may be brazed onto the male member and the malleable coating configured to act as a brazing compound therefore. The fluid seal may be characterized by the absence of a gasket or an o-ring and the malleable coating between 15 to 30 microns.

Abstract: A plug-in connector for medical tubes is provided with a first plug-in part (10) and a second plug-in part (30), wherein the second plug-in part (30) extends around the first plug-in part (10) in the plugged-together state. The second plug-in part (30) has at least one forwardly protruding snap-in element (32), which has at its front end at least one inwardly protruding projection (34). The inwardly protruding projection is provided for meshing (engaging) with a complementary recess (14) in the outer surface of the first plug-in part (10) in order to thus hold the second plug-in part (30) fixed in the axial direction on the first plug-in part (10) due to the projection (34) meshing with the recess (14).

Abstract: The diameter of a front end opening section (20-1) extending rearward over a predetermined length from a front end opening of a male member reception hole (20) is larger than a diameter of a male member reception section (20-2) of the male member reception hole that follows the front end opening section. The backup ring (18) is allowed to engage an inner wall surface (20-3) of a front end opening section (20-1) as a backup ring (18) is pressed radially outward from an annular groove (24) by a seal ring (16) that is deformed by engagement with the inner wall surface of the male member reception hole (20) when a male coupling member (12) begins to be inserted into the male member reception hole (20), which prevents the backup ring (18) from coming out, in a radially outward manner, from the annular groove (24).

Abstract: A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has one or more annular fluid chambers in the wall of the seal's body. Each annular fluid chamber is open to the outer circumference of the probe seal. Hydraulic fluid under pressure may enter an annular fluid chamber through its opening an exert a generally radial force as a result of a pressure differential. This radial force can act to increase the sealing effectiveness of the probe seal both to the body of the coupling member retaining the probe seal and to the probe of a male coupling member inserted in the receiving chamber of the female member.

Abstract: A crown-type probe seal for a female hydraulic coupling member has one or more circumferential, spring-energized seals. One particular preferred seal comprises a closely-wound helical spring which imparts an inwardly-directed radial force to the crown seal. In certain embodiments, the helical spring is substantially encased in a polymer jacket. In yet other embodiments, a liner is interposed between the outer surface of the helical spring and the polymer jacket. An optional, axial extension on at least one end of the crown seal provides a bore liner for a female hydraulic coupling member in which the crown seal is installed.

Abstract: A connecting device for a plug-in connection of at least one pipeline having a housing part having at least one receiving opening for the insertion of the pipeline. A clamping ring is arranged in the receiving opening and, in order to lock the pipeline in place, interacts with an inner cone of the housing part. The housing part is made in two parts including a base part and an insert part, which is connected to the base part via a snap-in action forming-fitting connection. The insert part has a direct seal for resting on the circumference of the inserted pipeline. The insert part is formed of a first relatively hard and dimensionally stable plastic material, and has a dirt seal which consists of a second, relatively soft and elastic plastic material and is molded directly into the first material as a single piece with a cohesive material joint therebetween.

Abstract: A pipe coupling for connecting a pipe to a flange associated with another pipe in a sealed manner. The pipe (10) is formed with circumferential groove (10a). The coupling comprises a gasket (20), a mounting ring (18), and a mounting flange (22). The ring (18) is elastically expandable, e.g. by being split, and formed with projecting rib (18a) adapted to fit into the groove (10a) and hold the ring affixed to the pipe (10). The mounting flange (22) is tightened against both the ring (18) and a counter-flange (12), through matching cone-shaped surfaces (18c, 22a).

Abstract: A quick connector coupling to releasably connect a rigid tube into a hollow body component bore with a resilient seal member creating a fluid tight seal. A seat member retainer includes legs abutting the body component. It includes an insertion sleeve that receives the axial insertion forces to insert the seal member retainer into the bore. A protective cap is arranged to contain preassembled seal and retainer components for assembly onto the rigid tube.

Abstract: An adapter assembly having an intermediate ring and a screw-in part for a fluid plug-in system. The adapter assembly includes an externally threaded portion for threading into a threaded bore and an actuating shoulder. A receiving groove is formed in the transition between the actuating shoulder and the externally threaded portion with a first sealing ring is disposed therein. The intermediate ring fits onto the externally threaded portion and has opposing axially spaced annular portions. A first annular portion cooperates with the receiving groove and the actuating shoulder to form a first sealing chamber for the first sealing ring. A second sealing seat of a second annular portion facing away from the actuating shoulder cooperates with a surrounding surface adjacent to the bore and the externally threaded portion to form a second sealing chamber for the second sealing ring axially spaced from the first sealing chamber.

Abstract: A floating seal for an undersea hydraulic coupling member is moveable radially to seal with the male coupling member even if there is some misalignment with the female coupling member. The floating seal is restricted from axial movement within the female coupling member receiving chamber. The floating seal may seal with the female coupling member.

Abstract: An undersea hydraulic coupling member has a seal retainer that holds and secures a plurality of annular seals that may be removed from the coupling member together with the seal retainer. At least one of the seals is a pressure energized hollow metal seal. The seal retainer includes a shell that engages the coupling member and a seal carrier that holds the annular seals.

Abstract: A coupling for attachment to the end portion of a pipe includes jaw members adapted to slide along an inner end taper in the coupling body so that linear movement of the jaw members toward the end of the inner end taper adjacent an end of the coupling body causes movement of the jaw members radially inwardly of the coupling body against the end portion of the pipe when received in the coupling body. The coupling may include a bell type gasket to function as a spring and the spring action of the gasket may be augmented by installing a springy crib ring around the gasket inside the coupling body.

Abstract: A gasket seal for piping and equipment flanges comprises a sealing ring and a centralization ring, preferably concentric rings made of a metallic alloy. The sealing ring has an outer contour surface having a substantially L-shaped cross-section comprising an innermost portion and an outermost portion extending axially and a radial portion interconnecting the inner and the outer portions. The centralization ring has an inner contour surface defining a central opening, substantially coincident with the innermost portion of the outer contour surface of the sealing ring, so that the latter can be fitted into the opening as far as the radial portion of its outer contour surface. A deformation is made on the innermost portion of the outer contour surface of the sealing ring, forming a projection, whereby the centralization ring can be retained between the projection and radial portion without the centralization ring needing to be separated and then welded.

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 backup metal O-ring seal is retained around the outer diameter of a seal retainer of an undersea hydraulic coupling member to seal a leak path around the seal retainer. The metal O-ring seal may be seated on a shoulder on the seal retainer. The backup metal seal is effective for high temperature and high pressure applications.

Abstract: A floating seal for an undersea hydraulic coupling member is moveable radially to seal with the male coupling member even if there is some misalignment with the female coupling member. The floating seal is restricted from axial movement within the female coupling member receiving chamber. The floating seal may seal with the female coupling member.

Abstract: An improved joining assembly employs a retainer ring member to hold in place a gasket member in a pipe or fitting. A resilient annular gasket member is placed inside a first conduit member (pipe or fitting). An annular retainer member is provided to secure the annular gasket member inside the first conduit member against longitudinal movement towards the open end of the first conduit member. A second conduit member is received by the assembled components comprising the retainer member, gasket member and first conduit member. The retainer ring member is fixed in place by a suitable adhesive or a suitable welding technique.

Abstract: An undersea hydraulic coupling member having a ring-shaped seal with multiple scaling surfaces extending radially inwardly therefrom is disclosed. The multiple sealing surfaces help guide the probe of the male coupling member into the female member without the risk of drag or galling of the receiving chamber or metal seal retained therein. The seal has an interfit with reverse inclined shoulders in the female member to restrain the seal from moving radially inwardly due to vacuum or low pressure.

Abstract: An undersea hydraulic coupling is disclosed having a male member with at least two radial seals around the outer circumference of the probe. The seals on the probe engage the receiving chamber and seal retainer of the female coupling member. When the seals retained in the female coupling member are worn or damaged, the seals on the male coupling member provide the primary sealing mechanism in the coupling. The coupling includes a normally closed poppet valve within each of the male female coupling members.

Abstract: An undersea hydraulic coupling has a bleed port for seawater external to the coupling to enter the bore of the female coupling member when the male member is partially withdrawn from the female member. A ring-shaped radial seal positioned between the coupling members allows fluid to enter through the bleed port and flow into the bore, while sealing against the flow of hydraulic fluid out of the coupling. The bleed port and ring-shaped radial seal provide for seawater to fill the vacuum between the coupling members when they are separated, thereby decreasing the separation force required.

Abstract: An undersea hydraulic coupling is pressure balanced to reduce forces tending to urge the coupling members apart during coupling or uncoupling. A seal retainer having an L-shaped fluid passage is used to provide fluid communication between the radial fluid passage in the male member and the longitudinal fluid passage in the female member of the coupling. The seal retainer holds one or more radial seals in the female member upon disengagement of the male coupling member.

Abstract: An undersea hydraulic coupling having a radial pressure-energized seal with a dovetail interfit is disclosed. The seal has a pair of flexible sealing surfaces for sealing with the male and female coupling members, and a cavity therebetween that is exposed to fluid pressure in the coupling. The outer circumference of the seal has a dovetail interfit between inclined shoulders in the female member bore and on a seal retainer that holds the seal in the bore.

Abstract: An undersea hydraulic coupling having a metal seal with a Y-shaped cross section that provides a face type seal between the male and female coupling members is disclosed. The inner circumference of the Y-shaped seal remains engaged with the face of the male member even when there is partial separation of the members, without any pre-loading devices. If the male member is partially removed from the female member bore, a face-type seal is maintained with the face of the male member and a sliding radial seal is maintained with the receiving chamber wall. The seal slides with the male member as it is partially withdrawn from the female member receiving chamber.

Abstract: An improved system for the non-destructive testing of the fluid tight integrity of an installed fluid transfer line such as a drain pipe or vent and wastewater system of a building. A removable test baffle is held in place between ends of adjacent sections of an installed fluid transfer line to isolate a portion of the line for testing. The test system comprises a baffle carriage, a removable test baffle, and a sleeve adapted to engage the outer surfaces of the adjacent sections to seal the junction and the test installation from leaking and optionally to provide one or more gaskets between the section ends and the baffle carriage. In optional preferred embodiments of the test system the baffle carriage is an integral part of the sleeve. Preferred baffles for use with the invention are flexible, of larger diameter than the fluid line, and comprise dual-gasket sealing means and means for removal of the baffles from either side of the test seal.

Abstract: An undersea hydraulic coupling has a male member with a stepped outer body that may be inserted into a female member having a bore which has retained therein three seals and a three part seal retaining member. Two of the seals engage different diameters of the male member, prior to opening of the valves in the male and female members.