Abstract: A fitting assembly for use in a fluid transfer assembly includes a fluid conduit having a first fitting with first and second ends and a bore extending between the first and second ends for receiving the fluid conduit. The first end of the first fitting is configured to sealingly dispose a ferrule assembly within a second fitting in an engaged position. The fitting assembly further includes a third fitting having first and second ends and a bore extending between the first and second ends for receiving the fluid conduit. The first end of the third fitting is configured to sealingly dispose a collet assembly within the first fitting in an engaged position.

Abstract: A fitting assembly is provided having a nut and a ferrule, which in certain embodiments may be assembled by an operator. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing. The nut and ferrule fitting assembly may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems.

Abstract: A fitting component for receiving a tube is provided. The tube has a tube end inserted through a ferrule, the portion of the tube end extending beyond the ferrule being called a pilot. The fitting component comprises a body including a cavity for receiving the tube end and the ferrule. The cavity is defined by an inner lateral wall and opens on an extremity of the body. The cavity includes a pilot receiving section and a channel connecting the cavity to another portion of the body. A radial annular flange is located at the interface of the pilot receiving section with the channel. The flange has an annular sealing lip protruding towards the cavity. The sealing lip is for forming a seal with a radial surface of the pilot, advantageously reducing dead volumes within the fitting component when in use.

Abstract: A ferrule for a conduit fitting includes in one embodiment a generally annular body comprising a cylindrical interior wall, a rearward portion with a frusto-conical recess that presents a camming surface, and a tapered outer surface. The tapered outer surface extends radially outwardly from a forward portion of the generally annular body towards the rearward portion, with the rearward portion further comprising an outer wall portion that tapers radially inwardly at an angle ? towards a back end of the annular body.

Abstract: A hose fitting assembly is provided, wherein the components are operably engaged with a length of hose to form a sacrificial construction. An end fitting having an insertion stem is disposed within a portion of the hose, wherein a clamping sleeve receiving a length of the hose threadingly engages the end fitting. A swaging collar is slide along the hose to threadingly engage the clamping sleeve, such that complete threaded engagement of the swaging collar and the clamping sleeve circumferentially compress and deform a portion of the clamping sleeve to clamp a portion of the hose intermediate the clamping sleeve and the insertion stem, and partially deformed threads on at least one of the clamping sleeve and the swaging collar. The hose fitting assembly can cooperatively engage a flexible high pressure metal braided hose, wherein the metal braid is formed of a less than full tensile strength steel, such as half hard stainless steel.

Abstract: A pipe connector including a connection member having a through-hole extending from a connection hole on one side to a coupling hole by way of an insertion hole in a stepped manner, a packing member fitted into the coupling hole, a guide member provided rearwards from the packing member with a tapered opening formed therein, a clamp member fitted into the tapered opening with a plurality of clamp pieces which are slanted so as to bite an outer circumference of a pipe, and a fastening member coupled to the connection member with a fixing section provided on one side with an inclined fixing protrusion protruding towards inside from the fixing section so as to push up the clamp pieces when inserted into the clamp pieces.

Abstract: A fitting assembly is provided having a nut and a self-releasing ferrule, which in certain embodiments may be assembled by an operator. The fitting assembly includes a nut with a first end, and a second end that defines a slot, and a ferrule with a first end that defines one or more slots, and a second end, with the second end of the nut adapted to receive the first end of the ferrule, the second end of the ferrule adapted to be received in a component or fitting of a liquid chromatography system. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing.

Abstract: A ferrule for use in a fluid transfer assembly having a fluid conduit includes a frusto-conical seal portion having a first cylindrical bore sized and configured to slidably receive a fluid conduit. The seal portion is formed from a first material suitable to seal the fluid conduit within a first fitting without substantially deforming the fluid conduit. A frusto-conical collet portion is mated with the seal portion and includes a second cylindrical bore in substantial alignment with the first cylindrical bore. The collet portion includes at least one axial finger extending along the tapered end that is configured to be biased into locking engagement with the fluid conduit. The collet portion is formed from a second material that substantially prevents deformation of the fluid conduit when the finger is biased into locking engagement with the fluid conduit.

Abstract: A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition.

Abstract: A tube nut includes a first member and a second member. The first member is threaded and defines a first hole. The second member is selectively rotatable with respect to the first member and defines a second hole. A tube or pipe extends through the first and second holes. The rotation of the first member in a threaded hole causes an axial load on the second member and the tube to urge the tube against a seat to provide a seal between the tube and a fluid passage. Relative rotation between the first and second members reduces or eliminates torsional strain on the tube.

Abstract: A chromatography and fluidic device with connections capable of automated component changing, diagnostic leak and current sensing. The chromatography-electrospray device contains a chromatography column, a pre-column, a spray emitter, or other fluidic component imbedded within one or more inserts. The inserts are robotically placed in receiving hardware, and a “plug and play” compression fitting connection mechanism makes the fluidic seals in an automated fashion. A plurality of sensors capable of detecting leaks is situated in the device near leak-prone regions. The electrospray emitter has a current sensing electrode in proximity of the electrospray region, capable of detecting the electrospray current. In conjunction with an electronics system, these sensors allow for system and component diagnostics. The diagnostic information may then be used for manual or automated system repair.

Abstract: The self energizing tube connector for engaging a pressurizable part made of a tube capable of sustaining pressures up to 50,000 psi without deforming is made of an upstream tube end and a downstream tube end; a ferrule with a front and rear ferrule, a lifting component that engages the front ferrule to cause a upstream seal to form between pressurizable part and tube, and a downstream seal to form between the front ferrule and the tube; and a coupling nut for sliding over the tube and disposed downstream of the rear ferrule for engaging the pressurizable part, wherein the coupling nut is adapted to tighten against the rear ferrule, front ferrule, and lifting mechanism to compress the rear ferrule, front ferrule, and lifting mechanism against the pressurizable part and the tube.

Abstract: There is provided a high-pressure metal pipe which has a connecting head capable of solving the risk of cavitation erosion in the inside of the connecting head by changing the contour shape of a pocket or notch to be formed in the inside of the connecting head during head working into a contour shape having a shallow depth and a gentle cross section. A reduced-diameter connecting head having an outside circumferential surface which is a seat surface having a truncated conical or spherical shape corresponding to a mating seat is provided at a connecting end portion of a thick-walled steel pipe having a comparatively small diameter. An annular concave groove to be formed in the inside of the connecting head during the formation thereof has a contour shape having a shallow depth and a gentle cross section, and the high-pressure metal pipe has a sleeve washer having a cylindrical portion which covers the outer circumferential surface of the reduced-diameter connecting head.

Abstract: A locking device for securing a tube to a threaded nipple has a threaded nut for mating with the threaded nipple. The nut has a through opening formed therein and a camming surface formed in the opening. A locking member has a first body section adopted to be positioned over the tube and received in the opening of the nut. The locking member also has a second body section extending away from the first body section and presenting an inclined surface positioned for engagement by the camming surface. A gripper component extends from an inner surface of the second body section for engagement with the tube. When the nut is threadably received on the nipple, movement of the tube away from the nipple results in the inclined surface engaging the camming surface to cause the gripper component to tightly engage the outer surface of the tube.

Abstract: The invention relates to a pie coupling, including a connection (3), arranged to receive with sliding fit a coupling member (5) which, on forced axial displacement into or in over the connection, is intended to act on clamping and sealing means (6), for translating the compression forces generated by the axial compression into radial compression forces against a pipe or coupling piece (1) inserted into the coupling. The connection may be implemented as a coupling housing (85) having both internal and external threads. Within the threaded area the coupling member may be formed with a cylindrical recess (45) fitting a cylindrical surface (154) provided with an optional type of thread. In accordance with an alternative embodiment, the connection may be equipped with a collar coacting with gripping means (70) equipped with hooks. The clamping and sealing means (6) is retained in the coupling member by coaction between a projection (9) and a locking flange (10).

Abstract: An injection line connection for internal combustion engines having for each pressure connection a connecting fitting which hitherto was upset out of the material of the injection line but which is still defective and which can be pressed by a cap nut, by way of a pressure ring, against an internal taper portion of a connecting member which carries the cap nut, is also suitable for thinner injection lines, free of disadvantages, by virtue of the following features, some of which are known and which are reproduced here by way of abstract:(a) the injection line (1) is a wall thickness in the range of from 1/5 to 1/3 of its outside diameter (D);(b) each pressure ring (6) is provided with a support projection (10) which is rounded off at the end towards the connecting fitting and which is of a tapered configuration along its outside periphery, while the associated connecting fitting (3) comprises the end of the injection line (1) which is flanged over outwardly about the support projection (10) and there forms th

Abstract: A high pressure hose fitting which includes a crimpable sleeve for use over a hose and a conical ferrule that separates the cord layer of the hose from the inner linings and clamps the cord layer ot the sleeve. A housing enclosed the fitting and provides the clamping force. An O-ring between the ferrule and the housing aids in sealing. All parts are so designed that an increase in pressure increases the sealing force and clamping force.

Abstract: A reversible lock and seal apparatus for coupling swimming pool piping and fittings, comprising a frusto-conical U-cross section metal ring with longitudinally spaced circular rows of teeth, adapted to be cammed into piping by a follower coupled to the fitting for locking the piping to the fitting without need of piping threads or solvent cements, and squeezing a seal ring therebetween.

Abstract: A separable electrical isolator for coupling two pieces of conductive tubing carrying high pressure cryogenic gas includes a gas-impervious dielectric spacer with a bore in which the pieces of tubing are sealed axially-aligned in fluid communication with an electrically-nonconductive gap between them. A pair of complementary coupling members are rigidly attached to the pieces of tubing to define outwardly-extending annular flanges that are each sealed about the periphery of a corresponding one of the pieces in a position slightly set back from an end of the piece. Each flange has an annular rib protruding from it toward the end of the piece. The coupling members are separably and nonconductively interconnected with the annular ribs applying compressive force to the spacer to thereby effect the seal.