Abstract: Some fluid coupling devices described herein are configured for use in fluid systems. For example, some embodiments described in this document are single-use, aseptic fluid coupling devices that can be coupled to create a sterile flow path therethrough. Some such aseptic couplings are genderless couplings such that two identical aseptic couplings can be coupled together.

Abstract: A coupling part for a hose coupling, a hose coupling provided therewith and method for coupling a hose or hose part. The coupling part includes an annular element; a number of hook-like coupling elements arranged at or on the annular element and configured to engage on a corresponding coupling element of a corresponding coupling part for the purpose of forming a coupling; and a wall surface provided on the inward directed side of the hook-like coupling element and provided at an angle of chamfer to the main throughflow direction of the coupling part.

Abstract: Formation of a sterile connection includes inserting a first aseptic coupling device into a second aseptic coupling device while a locking ring of the first aseptic device is in an indexed initial position, rotating the locking ring to a secured position in which a compressive force is created and in which a first membrane from the first aseptic coupling device and a second membrane from the second aseptic coupling device can removed thereby resulting in a first a first sealing member of the first aseptic coupling device sealing with a second sealing member of the second aseptic coupling device to form a sterile fluid passageway.

Abstract: A seal member for an aseptic coupling device includes a cross-sectional area including a first end portion, a middle portion, and a second end portion opposite the first end portion, the middle portion being thinner in radial dimension than the first and second end portions.

Abstract: An aseptic coupling device includes: a main body defining a front face; a membrane coupled to the front face, the membrane including a first portion coupled to the front face and a second portion folded over on the first portion; and a low friction member positioned between the first and second portions of the membrane.

Abstract: A sealing microsawtooth ring joint, made between a toothed seating surface and a full plain seated surface by a microsawtooth ring with its tooth crest on the seating surface being a cutting edge whose corner or whose crest angle is about 90°˜120°, with its tooth height Zt being about 10˜20 times the roughness Ra of the seated surface, and with the ratio of its tooth pitch Xs to its tooth height Zt being 20˜500 to ensure that the tight joint has a microcosmic line contact followed by a surface contact or to ensure that the tight joint has both such a line contact as to be able to provide a necessary seating stress locally and such a surface contact as to be able to protect the line contact from being excessively pressed to get blunt or disappeared, can be used either as a pressure-tight joint or as a self-energizing tight joint of any two surfaces such as flats to flats, cones to cones or spheres, spheres to spheres or cones etc.

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 separation membrane module includes: a pressure container having a tubular shape; a plurality of separation membrane elements loaded in the pressure container so as to be aligned in the axial direction of the pressure container; and a coupling member coupling together the separation membrane elements adjacent to each other. The separation membrane element includes a central tube and a pair of end members 3A and 3B fixed to both end portions of the central tube. The coupling member 5A is configured to be engaged with at least one of the end members 3A and 3B located on both sides of the coupling member 5A. In addition, a sensor is mounted in the coupling member 5A.

Abstract: Formation of a sterile connection includes inserting a first aseptic coupling device into a second aseptic coupling device, removing a first membrane from the first aseptic coupling device and a second membrane from the second aseptic coupling device, and rotating a locking clip on the first aseptic coupling device to compress a first seal member of the first aseptic coupling device with a second seal member of the second aseptic coupling device to form a sterile fluid passageway.

Abstract: Provided is a means for efficiently completing a high pressure seal and a connector assembly comprising two sealing members, each comprising an annular groove, and two elastomeric gasket members, each disposed into and fittingly received by the annular grooves of one of said sealing members, each gasket additionally comprising a sealing face not received into the annular grooves, wherein the sealing faces are in mutual aligned pressurized contact.

Abstract: A seal assembly for a fluid coupling includes: (a) a generally planar, substantially rigid seal retainer with opposed first and second faces, having an annular first groove formed in the first face; (b) a first resilient seal disposed in the first groove; and (c) an annular first backup ring positioned radially outboard of the first resilient seal and secured to the first resilient seal, wherein the first backup ring is substantially harder than the first resilient seal.

Abstract: Couplings and/or connections and related methods are disclosed that include a female component engaged with a male component. A first shoulder of the female component abuts a first complementary shoulder of the male component to form a first radial seal. A second shoulder of the female component abuts a second complementary shoulder of the male component to form a second radial seal. A sealing surface of the female component abuts a complementary sealing surface of the male component to form an axial seal disposed between the first and second radial seals. Plastic and/or elastic deformation of the complementary sealing surface of the male component can facilitate formation of the axial seal while preventing galling of threads or other portions of the male and female components.

Abstract: An operative fluid device (14) comprising a fluoropolymer body portion (24) and a fluoropolymer containment portion (22) connectable to one another for containing the fluid at a fluid sealing connection with two frustoconical surfaces (42, 74) that first confront one another and then engage one another as the connection is made, one of the frustoconical surfaces being convex and the other concave, wherein when the surfaces are confronting one another before they are engaged they are angularly mismatched, and wherein the frustoconical surfaces first sealing contact is at a radially inward annular position on each of the frustoconical surfaces and proximate the interior, and as the mating portions are urged together, the sealing contact expands from the radially inward annular position radially outward to include majority of at least one of the two angularly mismatched frustoconical surfaces.

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: Provided is a means for efficiently completing a high pressure seal and a connector assembly comprising two sealing members, each comprising an annular groove, and two elastomeric gasket members, each disposed into and fittingly received by the annular grooves of one of said sealing members, each gasket additionally comprising a sealing face not received into the annular grooves, wherein the sealing faces are in mutual aligned pressurized contact.

Abstract: A coupler apparatus for hoses, etc. comprises a pair of coupler bodies 1a, 1b having no distinction between male and female and having the same structure. Front end faces of the coupler bodies are provided with seal faces 5. In addition, the front end faces of the coupler bodies are provided with a plurality of engaging projections 8 and engaging recesses 7 formed among the engaging projections. The engaging projections 8 and engaging recesses 7 are axially engaged with the engaging projections 8 and engaging recesses 7 of the mating coupler body in a complementary manner. One side face 8a of each engaging projection 8 is provided with an engaging hook portion 9, and the engaging hook portions 9 are circumferentially engaged to couple the pair of the coupler bodies 1a, 1b. At least both side faces 8a, 8b of the engaging projection 8 are defined by radially extending planes passing through a central axis of the coupler body.

Abstract: A connector (1) for flexible fluid lines, such as garden water hoses, comprising a universal body member (3) which is common to all interconnecting components of the system, wherein there is a twist-together, twist-apart bayonet connection between component parts (1 and 7), wherein the locking lug (14) of the first component (1) engages a groove in the inner coupling member (8) of the second component (7), and the locking lug (14) of the second component (7) engages a groove in the inner coupling member (5) of the first component (1).

Abstract: A coupling for coupling hoses comprising a pair of coupling main bodies that are structurally identical and undiscriminable for male and female. Each of said coupling main bodies is provided at the front end surface with a sealing surface for mutual abutment and at the front end with a plurality of engaging projections and engaging recesses, each of said engaging recesses being arranged between any two adjacent engaging projections, so that the engaging projections and the engaging recesses of the two coupling main bodies can be complementarily engaged with the corresponding engaging projections and engaging recesses of the other coupling main bodies. The engaging projections are provided with respective hooked anchor sections that are peripherally engaged to restrict axial movement and consequently couple the pair of coupling main bodies.

Abstract: A bearingless, mechanical, rotary, fluid-tight coupling apparatus for effecting a fluid-tight seal between a non-rotating member such as a fluid supply line and a rotating member, such as a spindle, of a flexible machine tool. The apparatus includes a guide member having an axially extendable and retractable plunger. The plunger has a polygonal-shaped shoulder portion protruding therefrom which is moveable slidably, axially within a polygonal-shaped recess formed in the guide member of the apparatus. The polygonal-shaped recess and polygonal-shaped shoulder portion operate cooperatively to allow the plunger to be retracted as needed when the spindle of the machine tool retracts to permit changing of a tool secured to the spindle, while permitting a slight degree of misalignment of the spindle relative to the apparatus without affecting the fluid-tight seal therebetween.

Abstract: A multi-piece, pipe joint seal has a slidable interface between seal pieces. The slidable interface allows for slippage between pieces during pipe joint assembly and disassembly, minimizing rotational and other stresses on the seal pieces and pipe sealing surfaces which may damage or endanger the deformable seal. The slidable interface seal is especially useful for joining brittle-lined pipe sections handling harsh fluids.

Abstract: A multi-piece, pipe joint seal has a slidable interface between seal pieces. The slidable interface allows for slippage between pieces during pipe joint assembly and disassembly, minimizing rotational and other stresses on the seal pieces and pipe sealing surfaces which may damage or endanger the deformable seal. The slidable interface seal is especially useful for joining brittle-lined pipe sections handling harsh fluids.

Abstract: Connector connects two annular objects face-to-face. It may be used as a hose end coupling that connects two flanged hose ends end-to-end. It includes two components of the same configuration that connect directly to one another. Each a hose end flange preferably has a tapered back face and an O-ring seal fitted in a groove in the end face to engage an O-ring seal on the end face on the mating component. To hold the two end flanges together, two connector components of the same configuration are mounted on the respective end flanges. Each includes two part annular retainers that engage over the hose end flanges and urge them together. The web joining the two retainers has an offset section with teeth that engage similar teeth on the other connector component. The coupling is intended for use in breathing gas supply systems such as are used in medical applications.

Abstract: An improved hose coupling gasket in which the standard gasket retaining flange is modified to include an additional sealing bead strategically formed on the upper surface of the flange such as to engage the adjacent surface of the gasket retaining groove in the coupling head. The diameter of this additional sealing bead is such that the point of engagement between the sealing bead and retaining groove corresponds to a gage point where the dimensional accuracy of the retaining groove width is checked in accordance with A.A.R. requirements.

Abstract: A junction assembly with leak detection means comprising a pair of mating surfaces forming the junction of two fluid conduits, means forming an annular containment chamber in at least one of the surfaces circumscribing the conduit passageway, a pair of spaced apart O-ring seals respectively disposed on opposite sides of the containment chamber, a fluid sensor extending into the containment chamber for sensing the presence of unwanted fluids therein due to the failure of an O-ring seal and a control system for responding to an output signal generated by the sensor to deactivate the system in the event of failure.

Abstract: In the present invention, when a multi-injection molded body made of at least a first and a second resins is molded, catching means are formed generally by pressing a part of the surface about an opening of a concave section formed in a first molded body made of the first resin to project interior side wall faces of the concave section inward, and injecting a second resin to mold a second molded body thus formed has catching means in the concave section, so that the second molded body is tightly fixed to the first molded body.

Abstract: A universal-type coupling member including a head portion, a stem portion rotatable in the head portion, and a gasket inset in the head portion and in sealable contact with the stem portion, and having a fluid passageway therethrough is provided, which can be connected to another appropriate universal-type coupling member. Use of the coupling member of this invention can relieve the uncoupling effects of twist or torque in universal-type coupling combinations.

Abstract: A sealing profile made of rubber or rubber-like material for installation in a recess extending around concrete segments for a tunnel tube. The profile has on the base side a plurality of parallel grooves extending in the longitudinal direction, and parallel ducts extending in the longitudinal direction on the top side. The ducts are laterally displaced with respect to the grooves, and the back of the profile is substantially shaped with a plane surface. Of the three grooves provided on the base side, the center groove is from 10% to 20% deeper and wider than the adjacent grooves. In the center of the profile, the spacing between the ducts is larger than the spacing between the ducts disposed away from the center of the profile. The lateral sides of the profile are inclined at an angle of from 10 to 20 degrees.

Abstract: A quick-connect coupling is disclosed for manually joining together pipe or hose sections or the like. A pair of identical coupling bodies are provided, each containing an elastomeric annular face seal, and adapted for sealing engagement with a corresponding coupling body. Members are provided for releasably joining the coupling bodies together. The coupling forms a fluid-tight seal with its mate under low pressure conditions, yet when the coupling is over-pressured, it does not fail catastrophically.

Abstract: The improved wellhead seal assembly includes an annular metal seal ring having upper spaced apart inner and outer rims with an upper energizing ring positioned between such rims and movable axially between them, a resilient seal embedded in and extending through ports in the central portion of the seal ring, lower inner and outer seal rings connected to said central portion of said seal ring by inner and outer bellows and a wedging ring depending from the central portion of the seal ring between such bellows and adapted to move downward between the inner and outer seal rings to wedge them apart into sealing engagement with the inner and outer sealing surfaces, such movement being responsive to downward movement of the upper energizing ring and the flexing of the lower bellows legs and continued movement of said upper energizing ring wedging said upper rims apart into sealing engagement with the inner and outer sealing surfaces, the upper energizing ring being releasably connected to the upper seal rims so tha

Abstract: A fluid passage connector for liquid chromatographs, which comprises a tube having a flat portion at one end, a bushing fixed to the outer periphery of said tube, a joint having therethrough a fluid passage, around the opening portion of which is provided a seal seat surface, and an engaging member for urging the bushing for said tube, which is inserted into said joint, thereby to fluid-tightly engage the flat end portion of said tube with said seal seat surface.

Abstract: A compound sealing ring for fluid couplings comprises an annular resilient seal member having front and rear ends between which extends a circumferential annular groove, and an annular rigid reinforcement member inserted over the front end of the sealing member in snug engagement in the groove. The reinforcement member is axially confined by the sidewalls of the groove and has sufficient rigidity to prevent radial outward deformation of the sealing member during use.

Abstract: The interior sections of companion sterile connector members are isolated from the atmosphere by shield plates that are movable to uncover aligned conduits in said members through which luer fitting sections are engaged. Compressible seals positioned intermediate said shield plates and said connector members expand and contact one another as the shield plates are moved, thus forming a seal-line that advances behind the trailing edge of the shield plates as the plates are moved to uncover said conduits. The seals thus preserve the sterility of the connector prior to engagement of the luer fittings and provide added assurance against contamination thereafter without contact with the fluid passing through the luer fittings within the connector. In various embodiments, the shield plates are conveniently slid or rotated from the closed to the open position.

Abstract: A connector is described for joining tubes together, particularly plastics tubing as used in laboratories and the like.The connector comprises a first member having a barb-like projection through which the tube can be pushed but cannot be pulled in the reverse direction due to the interaction between the barb-like projection and the surface of the tube. The protruding captive end of the tube passes through a resiliently deformable disc of plastics material preferably Polytetrafluroethylene and in a preferred embodiment the disc is partly housed in a cup-shaped extension from the first member.The assembly of first member and disc is secured within a sleeve by means of a screw-thread engagement between the said sleeve and a further member which acts on the rear of the said first member. The said further member is screw-threadedly advanced into or onto the sleeve.

Abstract: The specification discloses a torque coupling having two tubular coupling members having flanges with interlocking teeth wedged together by a clamping ring. The flanges have opposed grooves in which are positioned elastomer sealing rings having shallow grooves with sharp edges forming vacuum seals with the bottoms of the grooves in the flanges, the rings being pressed together.

Abstract: A toy construction set includes interconnectable building blocks. Fluid conduits are formed in the blocks. The blocks are interconnectable to communicate their fluid conduits. Resilient seals are carried by the blocks and form fluid tight connections between communicating conduits of interconnected blocks. Tubular conduit members are insertable into certain of the building block conduits, and the block-carried seals establish fluid tight communication therebetween. Flexible hoses are connectable with selected ones of the building blocks and conduit members. The blocks, the conduit members, and the hoses are interconnectable to form fluidic systems communicating such fluidic devices as pumps, motors, valves, nozzles and the like. A fluid reservoir and building base assembly is provided for use with the set when a fluid system is being constructed, and for storing the set components between periods of use.

Abstract: A flange adapted to be arranged on a tube. A plurality of flange parts fit together to define a flange having a central opening for surrounding the outer perimeter of a tube. Each of the flange parts defines at least a portion of the central opening. Each flange part is provided on its surface portion which defines at least a portion of the central opening with at least one protrusion for engaging a corresponding groove in an associated tube in a form-fitting relationship.