Abstract: The spring includes a composite elastomeric body having in one embodiment a closed end and an open end. A coil spring is embedded both within the body wall and the closed end, and provides reinforcement of both the body wall and the closed end. The body may be of cylindrical, conical, or other shape, depending upon the required function of the spring. It may also take an essentially hourglass shape or the shape of a cylinder flanged at both ends. Alternately, the spring may be internally pressurized to provide load leveling or air spring effects in addition to the variable rate load versus deflection curve normally obtained. The body may be attached directly to any surface to create an airtight seal. Alternately, a closure plate may be provided to seal an open end of the coil spring.

Abstract: A seal for preventing leakage of pressurized fluid along a flow path along an engagement plane between a first and second members. The seal has a cylindrical body with a first elastomeric ring located on an end and a second elastomeric ring located on a peripheral surface of the cylindrical body. The cylindrical body is located in a passage in the second member. A spring urges the first elastomeric ring into engagement with a face on the first member when the first and second members are joined together. Pressurized fluid which flows from a passage in the first member into the second passage in the second member acts on the cylindrical body to further urge the end into engagement with the first member to prevent fluid leakage along the engagement plane there between.

Abstract: A substantially, cylindircal plumbing extender is capable of being secured to a faucet at one end thereof and to the water source at the other thereof. With a sealed piston therein the plumbing extender can replace the faucet holddown nut. Various sizes of male threaded members in the side of the cylinder provide for attachment of various water requiring appliances.

Abstract: A multiple ply label has an extension that includes a bar code symbol and the extension is folded under the label ply when the label is attached to an article for the purpose of protecting the bar code symbol. Another embodiment of the multiple ply label has a cutout portion that allows a bar code symbol to be positioned so as to be partially covered by an overlying ply when the label is attached to an article for the purpose of protecting one portion of the bar code symbol while exposing the other portion of the symbol. The overlying layers or plies of the multiple ply label can be removed at successive stations while protecting the bar code symbol.

Abstract: An improved apparatus for connecting first and second conduits having first and second bores, respectively to provide communication between the first and second bores which may be used with temperatures and/or wide variations in temperature. While a biasing element is used to provide a sealing ferrule with sufficient force to seal the second conduit, a ferrule forming screw may be used to form an initial seal if a conduit is used that is undersize with respect to the ferrule. A quick-lock adaptor is also attached to the base of the connector which adapts the connector for use with standard tubing fittings.

Abstract: A hose fitting comprising a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion, a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, a sleeve provided within the large diameter bore portion and having an inclined surface, a collet provided between the second cylindrical member and the sleeve and having an outer surface engageable with the inclined surface of the sleeve, the collet being further formed at its inner circumferential portion with an inner circumferential edge, the inner circumferential edge being adapted to bite on the hose when no internal fluid pressure is applied within the small diameter bore portion and when the hose is pulled out axially outwardly, the hose being firmly fixed between the collet and the second cylindrical member by axial outward movement of the collet

Abstract: A hose fitting for sealed connection to a hose, comprising: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion; a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member; a sleeve provided within the large diameter bore portion and having an inclined surface; a collet provided within the large diameter bore portion and having an outer surface engageable with the inclined surface of the sleeve and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet; and a stop member received in the large diameter bore por

Abstract: A hose fitting for sealed connection to a hose, comprising: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion the large diameter bore portion having at its axially outer end an axially outwardly narrowing portion; a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member; and a collet provided within the large diameter bore portion and having an outer surface engageable with the axially outwardly narrowing portion of the first cylindrical member and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet.

Abstract: Coupling unit for releasably connecting fluid lines in or on two parts whose relative position is variable. In order to ensure reliable centering of the ends of the fluid lines to be connected while avoiding excessively high shear stresses, a distance plate (1) is arranged between the parts (M and W) containing the fluid lines (L and K, respectively) to be connected. The distance plate (1) is fastened in an axially mobile manner to the first part (M) by means of at least one guide rod (F) fastened to the latter and whose distance from the other part can be varied by means of at least one piston rod (S) arranged in the guide rod (F). A number of bushings (3) equal to the number of line connections to be made are housed in axial recesses (2) in the distance plate (1). The bushings (3) are held in their respective recesses (2) with axial and radial play, are connected to one part (M) by a mobile flexible tubular line (L) and are associated with the other part (W) by a fixed connecting sleeve (A).

Abstract: The present invention relates to a pipe joint for connecting a piping comprising a cylindrical body with both ends open and a connecting part to a socket, the socket having a tapered part on the internal circumference and diminishing in diameter toward the open side, one end of the socket attached to the connecting part of the body and the other end of the socket being as the pipe inserting port and, an insert provided to the body in a way to slide freely within a certain range and having a free end facing the pipe inserting port, and a collet placed between the internal circumferential face of the socket and the insert in a way to advance and retreat freely.

Abstract: A pipe joint comprises a cylindrical main body 1 with both ends open, at least one of which is to be a pipe insertion port 10, a slender slidable cylinder 2 coaxially installed in the main body 1 so as to slide therein freely to and fro in a certain range, its free end facing the pipe insertion port 10, and a holding cylinder 3 inserted between the main body 1 and the slidable cylinder 2 in a manner to move freely back and forth. The main body 1 has a taper 11 diminishing toward the pipe insertion port 10 on its inner circumference near the port 10. The holding cylinder 3 has a slit 30 open to the pipe insertion port 10 and its outside diameter is slightly larger than the inside diameter of the pipe insertion port 10. In a state where a pipe is forcibly fitted on the slidable cylinder 2 externally, the holding cylinder 3 moves toward the pipe insertion port 10 along with the pipe being pulled back.

Abstract: An improved length compensating joint suitable for use in repairing pipelines includes an inner tubular member, an outer tubular member which receives the inner member in close fitting engagement, seals disposed radially and axially between the inner and outer members define annular piston areas for providing selective relative motion between the inner and outer members, a pressure responsive locking piston with a camming surface for urging gripping elements into locking engagement with the inner member, a metal-to-metal seal between the inner and outer members which can be deenergized during extension or retraction operations and a test port for verifying the integrity of the metal-to-metal seal after installation. Additionally, a second embodiment provides an alternative metal-to-metal seal configuration which can also be deenergized during extension and retraction operations.

Abstract: A hose end fitting for sealed connection to a hose, comprising: a first cylindrical member having a reduced diameter bore portion and an enlarged diameter bore portion connected to the reduced diameter bore portion; a second cylindrical member axially slidable within the enlarged diameter bore portion of the first cylindrical member and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member, and the axial tubular portion being provided with a sealing member; hose end gripping means provided within the enlarged diameter bore portion of the first cylindrical member and radially expandable and constrictable, the hose being gripped by the hose end gripping means which is radially constricted by axial outward movement of the second cylindrical member; and stopping means received in the enlarged diameter bore portion and adapted to limit axial movement of the second cylindrical member and the hose end gripi

Abstract: A hose fitting for sealed connection to a hose includes: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion. A second cylindrical member is axially slidable within the large diameter bore portion and has a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member. A sleeve is provided within the large diameter bore portion and has an inclined surface. A collet is provided within the large diameter bore portion and has an outer surface engageable with the inclined surface of the sleeve and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet.

Abstract: A socket for use with a plug, having a cylindrical connector, to form a pipe coupling comprises a main cylinder provided with a cylindrical side wall for defining an axial hole, an axial extending slit formed at the side wall of the main cylinder, and a lock system for selectively locking the connecting portion of the plug. The socket further comprises an inner sleeve including a rear portion axially guided through the inner hole of the main cylinder, an inner flow passage, end an engaging member having a front and projected outward from the rear sleeve in the radial direction and then outside through the slit. The inner sleeve can move between its advanced position where the inner flow passages are communicated with a flow passage in the connecting portion of the plug and its retreated position where they are separated from each other.

Abstract: A hose fitting for connecting a hydraulic hose to a hydraulic system including an axially inner reduced diameter bore portion and an axially outer enlarged diameter bore portion formed with an inner circumferential groove, comprising: a cylindrical member axially slidable within the enlarged diameter bore portion and having a radial flange portion and an axial tubular portion extending axially outwardly from the radial flange portion; a sleeve mounted on the enlarged diameter bore portion and having an inner inclined surface; a collect arranged between the cylindrical member and the sleeve and having an outer surface engageable with the inner inclined surface of the sleeve and radially inwardly constrictible when moving axially outwardly within the sleeve, the hydraulic hose being crimped by axial outward movement of the collet; and a stop member received in the circumferential groove and adapted to limit axial outward movement of the sleeve and collet.

Abstract: A rotating union including a seal assembly having a rotating seal member carried by the rotor, a non-rotating floating seal member carried by a fluid actuated assembly mounted in and keyed to the housing of the union, the fluid actuated assembly including a flexible diaphragm interposed in the fluid flow path and which is flexed responsive to fluid pressure through the union to move the non-rotating seal member into engagement with the rotating seal member, the diaphragm being unflexed in the absence of fluid pressure through the union whereby the non-rotating seal member is maintained out of engagement with the rotating seal member.

Abstract: A support assembly (1,11,31) for mounting within a vessel (3) which may be subjected to an inwardly acting pressure differential, comprises a support member (2,12) which is in contact with an internal surface, of the vessel so as to define a recess (4,14). In use the recess is filled with an incompressible fluid, which may be an hydraulic oil. The support member (2,12) may be further provided with an intensifier (19,32) which produces a positive pressure differential between the fluid in the recess (4,14) and the pressure acting on the vessel 3. The effect of this is to induce a tensile loading in the vessel wall in the vicinity of the recess (4,14) and thereby provide support for the vessel.

Abstract: A hose fitting for sealed connection to a hose, comprising: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion; a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member; a sleeve provided within the large diameter bore portion and having an inclined surface; a collet provided within the large diameter bore portion and having an outer surface engageable with the inclined surface of the sleeve and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet; and a stop member received in the large diameter bore por

Abstract: A hose fitting for connecting a hydraulic hose to a hydraulic system including an axially inner reduced diameter bore portion and an axially outer enlarged diameter bore portion formed with an inner circumferential groove, comprising: a cylindrical member axially slidable within the enlarged diameter bore portion and having a radial flange portion and an axial tubular portion extending axially outwardly from the radial flange portion; a collet having an outer surface; a sleeve arranged between the cylindrical member and the collet and having an inner inclined surface engageable with the outer surface of the collet, the collet being radially inwardly constrictible when the sleeve is moving axially outwardly, the hydraulic hose being crimped by axial outward movement of the sleeve; and a stop member received in the circumferential groove and adapted to limit axial outward movement of the sleeve and collet.

Abstract: A coupling having a metal-to-metal seal between a male member and a female seal member, the seal being "preloaded" by means of an internal preload mechanism. The male member engages the seal member, forming the sealing relation between the two. The seal member is allowed to float, or slide, longitudinally within the bore of the female coupling member between a first, extended position and a second, compressed position. The seal member is biased by the preload mechanism into its first, extended position. A force resulting from engagement of the male member and the seal member tends to urge the seal member toward its second, compressed position and that force is opposed by the preload mechanism. The sealing relation between the male member and the seal member is thereby enhanced. An annular metal ring seal may be used to provide a sliding fluid seal between the outer circumference of the seal member and the bore of the female.

Abstract: A hydraulic stab sub with multiple seals especially for use in remote and harsh environments with the ability to move the seals radially inward to a retracted position in which the hydraulic stab sub can be easily inserted into a mating receptacle and alternately to move the seals radially outward to perform useful functions such as sealing or locking into the receptacle.

Abstract: An improved rotary joint including first, second and third joint portions, and so arranged to connect two flow passages to each other respectively at the rotary unit side and stationary side so as to continuously effect, for example, centrifugal counter-current distribution work.

Abstract: An apparatus for welding a section of pipeline onto an existing pipeline, the process including the steps of cutting away the section of damaged pipeline; providing a apparatus insertable within each end of the existing line for venting off gas within the line to create a gas free safety zone around the cut ends of the line; providing a flange for welding onto the ends of the line, the flange including a ring for sealingly engaging the face of a mating flange to effect an initial seal between the flanges while a weld bead is welded in place between the mating flanges. Following the welding, there is provided a test port in the wall of the flange for allowing air or fluid to be injected into the annular space between the metal sealed ring and the weld so as to test for any leak in the weld in place. Further, the sealing ring and test ports are in a position so that the exterior weld between the flanges may be X-rayed for any flaws within the weld.

Abstract: A bell seal unit and retaining nut for use in the nozzle chamber unit of an elastic fluid turbine, such as the steam turbine used to drive electrical utility generators. The bell seal unit includes a radial flange with an end face sealing surface and a skirt portion with a lower skirt margin subdivided into a labryinth seal region and a guiding and wear resisting region. The labryinth seal region includes plural, spaced apart circumferential seal lands and grooves, and the guiding and wear resisting region includes plural axial lands and grooves. The ball seal unit is positioned for free but limited axial movement by a retaining nut which includes a smooth inner cylindrical surface, a shoulder surface and a lower flange surface. Plural slots extend between the shoulder and flange surfaces to facilitate fluid flow to the lower surface of the bell seal radial flange.

Abstract: A new and improved flange connection design is disclosed which lowers weight, cost and size. Briefly stated, truncated threads are used in the flange area which more uniformly distribute stress concentrations and allows a smaller bolt and nut to be utilized. Further, a self-energizing seal which uses the pressure inside the conduit to greatly facilitate the flange connection sealing function. This therefore allows lower forces to be utilized when clamping the two flanges together which results in less expensive, smaller and less costly flange connection construction as well as still further reductions in the size of the nuts and bolts utilized.

Abstract: A high pressure hose coupling having a body portion including a cylindrical cavity for acceptance of a piston and means for attachment of an outer ferrule having a conical interior surface; a free sliding inner nipple which carries on its outer periphery an annular piston operative within said cylindrical body cavity; a plurality of wedges; a wedge driving means operating to produce uniform movement of said nipple and wedges into said conical ferrule.

Abstract: An improved telescoping joint suitable for use in repair of subsea pipelines including an inner tubular member, an outer tubular member for receiving the inner tubular member therein with an annulus between the members with seals establishing effective piston areas for extending the joint by causing relative extending movement between the members and relative retracting movement between the members, a pressure responsive locking piston for camming gripping elements into tight locking engagement between the members, and a pressure responsive piston and seal for providing a metal-to-metal seal between the members upstream of the extending piston area, the retracting piston area and the lock. Additionally a testing port is provide to establish the fluid tightness of the seal in the subsea location prior to the installation of the joint into the pipeline as a replacement for a damages section which has been removed.

Abstract: A tube connector used to connect conduits for fluid pressure to pressure testing equipment, the tube connector including a piston slidably disposed within a housing, the piston defining a chamber for containment of a seal which engages the outer periphery of the tube to be tested.

Abstract: In the rotary coupling for feeding a gaseous or liquid pressurized medium from a first to a second machine part, which are rotatable with respect to each other, the first machine part contains at least one feed piston formed as a spring supported hollow piston and a sliding shoe is mounted between the feed piston and the second machine part. In order to make a rotary coupling, particularly a high pressure rotary coupling, in which when no operating medium is supplied during rotation no frictional forces are present between the component parts, the feed piston contains a mechanically driven check valve which opens in the feed direction and at least one piston spring braced between the feed piston and the first machine part is provided whose compression force is directed opposing that force which is exerted by the medium under pressure on the feed piston.

Abstract: Drilling apparatus is adapted for use with a computer controlled plotter to selectively use the plotter as an automatically positionable hole drilling device. A drill motor of the drilling apparatus is carried and manipulated by a carrier mechanism of the plotter in a manner similar to that in which a conventional plotter instrument is manipulated. A coupling apparatus is attached to the carrier mechanism for the purpose of selectively mechanically connecting to and establishing a pneumatic seal for supplying pressurized gas to operate the drill motor. An alignment apparatus is connected between the carrier mechanism and the drilling apparatus to position an axis through the drill bit of the drill motor orthogonal to the plotter table. An actuator apparatus moves the drill motor toward the plotter table to drill holes in the material positioned on the plotter table.

Abstract: This invention relates to a joint for risers, and particularly to a telescopic joint suitable for expandably connecting composite-pipe type riser pipes provided internally with tubing pipes. Its structural features reside in that connectors adapted to connect risers in up-and-down relationship are slidably engaged with each other and air cylinders capable of cancelling volume changes of the engaged portions, which volume changes occur due to expansion and contraction movements of the connectors, are communicated to the spacing of the engaged portions, and hydraulic cylinders adapted to cancel volume changes of the engaged portions of an internally-threaded nose portion and an externally-threaded nose portion, which engaged portions serve to communicate the upper and lower tubing pipes to each other, is communicated with the spacing of the engaged portions of the nose portions.

Abstract: A pressure-assisted dynamic seal mechanism for sealing two relatively movable members within a tubing string in a well includes a primary seal member having a first cross-sectional area positioned for sealing engagement between the two relatively movable members. The primary seal is pressure-assisted by a back-up seal mechanism comprising a second seal member having a cross-sectional area greater than the cross-sectional area of the primary seal member and a third seal member having a cross-sectional area greater than the cross-sectional area of the second seal member. The pressures which act directly across the primary seal member also act in the same direction across the third seal member, whereas these pressures act in an opposite direction across the second seal member.

Abstract: A coupling apparatus is provided for quick coupling of a plug container or the like to a casing collar. A body of the plug container is located above the casing collar. A main seal seals between the body and the casing collar. An adjusting assembly has a variable engagement with the body. An annular locking device is connected to the adjusting assembly for longitudinal movement therewith relative to the body. The locking device locks the body to the casing string. The locking device has a lower end movable between an open position wherein the casing collar can pass through a central opening thereof, and a closed position wherein a radially inward extending lip of the lower end of the locking device is located directly below the casing collar. The main seal is hydraulically biased against the casing collar.

Abstract: A seal assembly has features to seal the junction of two passages. The assembly includes a piston with a seal on its face. The piston has a passage extending through it. Hydraulic fluid applied to an annular cavity moves the piston forwardly and rearwardly independent of fluid pressure in the passage. Once sealed, pressure in the passage acts on the end of the piston to maintain sealing engagement.

Abstract: The invention relates to a valve apparatus for evacuating and/or filling a refrigeration system having a hermatically closeable connecting tube. The apparatus includes a piston and cylinder unit which has a central passage for receiving such a connecting tube and is pressure operable to squeeze a sealing ring into sealing engagement with the tube to facilitate the subsequent filling or evacuating of the system through the tube via valving located in a valve block connected to the piston.

Abstract: This invention relates to a quick connect type of tube connector which engages the outside diameter of the tube with a self-locking capability and which increases its gripping action on the tube by fluid pressure developed behind a piston in a chamber housing the piston and having seals between the piston and chamber and between the tube and an axially slidable member applying initial gripping action on the tube.

Abstract: A quick coupling device for a fluid-tight, especially temporary connection to a pipe nipple (1) or the like, comprising a cylindrical casing (5,14), which is mechanically connectable to the pipe nipple, and a coupling piston (16,18), which is displaceably disposed in the cylindrical casing and which is permanently connectable to a pressurized fluid conduit (4) and has a through-going opening (27) for the passage of pressurized fluid to said pipe nipple, the coupling piston being displaceable, by the action of a separate actuating fluid (via 30), into sealing (21) contact with the end surface (22) of the pipe nipple (1).

Abstract: A coupling apparatus is provided for quick coupling of a plug container to a casing collar. A latch collar including pivotally connected arcuate collar portions is provided for engaging a lower end of the casing collar. A threaded adjustment is provided for increasing an initial compression of a seal against the upper end of the casing collar. Hydraulic biasing increases the seal against the upper end of the casing collar. An improved construction of inlet nozzles for the plug container is also disclosed.

Abstract: A quick coupling device for fluid tight, especially temporary connection to a threaded pipe nipple (2) or the like, e.g. for use in tightness tests or leak detection. The device comprises two portions which are axially movable relative to each other, namely a cylindrical casing (3) and a piston (4) displaceably mounted therein. The casing and/or the piston are adapted (5) for permanent connection to a pressurized fluid conduit, and the piston has a through opening (9) permitting the flow of pressurized fluid to the pipe nipple (2). According to the invention, one (e.g. the piston (4) of the axially movable portions is provided with a thread dimensioned to be screwed into engagement with the thread of the pipe nipple (2), whereas the other portion (e.g.

Abstract: To enable easy and quick coupling of a conduit to the end of a pipe, the device comprises a casing (1,5) having a replaceable, separate casing portion (5) with a resilient sleeve (4a,4b,4c), the radial dimensions of which are adapted to a particular pipe dimension. The sleeve is axially compressible between a stationary abutment (9) and a movable piston (11) having a channel (14) permitting the supply of pressurized fluid through the piston and into the end of the pipe (10a, 10b, 10c).

Abstract: A pipeline coupling adapted for mounting over a pipe to which connection is to be made. It includes an annular seal ring of elastomeric material supported by the coupling and adapted for deformation to a confined sealing position between the coupling and the pipe. Means such as a plurality of circumferentially spaced about and hydraulically actuatable pistons are arranged for applying a compressive force to the seal ring to thereby deform the seal ring to the confined sealing position. Means are provided which are operably associated with the seal ring for automatically accommodating increases and decreases in the volume of the confined seal ring to thereby reduce variations in the confined pressure of the seal ring caused by variations in temperature. One form of such automatic means includes springs arranged to apply substantially uniform counter forces to the aforesaid pistons.

Abstract: A separable and at least partially pressure balanced safety pipeline connector. The connector is arranged to be included in a pipeline and provide a pressure balanced weak point whereby the connector will separate at a predetermined tension load but which will be insensitive or substantially insensitive to operating line pressure. It includes a housing having one axial end adapted for connection to the pipeline and with the other axial end open. The connector includes a pipe extension member having one axial end adapted for connection to the pipe-line for transmission of line fluids therethrough and with the other axial end arranged for being telescopically received coaxially in the housing in sealed relationship therewith. A shear disc is mounted between the housing and extension member for restraining the same against axial separation in response to axial tension forces applied thereto.