Abstract: A multiple-slide die-casting machine is equipped with improved mechanical structure and unique injection control system to improve the quality of molded products, to achieve flash free castings of improved surface finish. The clamping assemblies are mounted on one side of a base plate of the machine for applying clamping force to the mold sections in a preloaded state. A reinforcement ring interconnects the clamping assemblies to inhibit deflection of the base plate and the brackets which support the clamping assemblies so that an accurate parting line between the contacting surfaces of mold sections is insured.

Abstract: A cooling arrangement for uniformly cooling an entirety of a die-casting metal mold is provided. Cooling oil is supplied from temperature controllers (9, 10) by pumps (not shown) to respective coolant passages (A,B,C,D,E,F,G) through coolant supply circuits (5,6) and through manifolds (5B,6B) where the coolant is branched for cooling a predetermined portion of the metal mold (2). Then, the cooling oil discharged from the respective coolant passages (A,B,C,D,E,F,G) are returned to the temperature controllers (9,10) through coolant discharge passages (7,8) and is cooled by cooling device (11, 12). The cooled cooling oil is again supplied to the coolant supply circuits (5,6). The coolant passages (A through G) are grouped into two groups, and the temperature controllers and the coolant circulation circuits are also grouped into each group to perform coolant supply control and temperature control independently of each group.

Abstract: The invention relates to a investment casting molds and their method of manufacture. The method entails mixing refractory fiber, glass fiber, and refractory filler to form a dry blend; mixing the dry blend with an aqueous colloidal silica sol to form a refractory prime coat slurry, and employing the refractory slurry to produce an investment casting mold.

Abstract: The invention concerns heating, ventilating and/or air conditioning appliances, in particular for a vehicle, having optionally an evaporator (10) and comprising a fan, a heat exchanger for heating and an additional heating device (14), wherein the additional heating device (14) can be supplied at least partly with air which has not passed through the heat exchanger for heating (2).

Abstract: A flow field of impinging jet array based CPU cooler is provided. The cooler comprises a cooling base having an array of recess on a top surface, the cooling base being rested on CPU; a substantially similar sized orifice plate having an array of orifice each corresponding to recess, orifice plate being above cooling base by a separation distance; and a fan with cooling base and orifice plate enclosed therein and secured on the CPU. An activated fan provides coolant flow that produces the vortical flow structures with enhanced turbulence on each recess by impinging air jets onto the recesses through the orifices, thereby convecting the heat flux generated from the running CPU. Also, the orifices may be oblique other than vertical.

Abstract: In an embodiment, an apparatus for enhancing a thermal match between portions of a semiconductor device is disclosed. The apparatus includes a die and a heat spreader. The heat spreader is in thermal contact with the die. The heat spreader has a center portion and a perimeter portion. The center portion and the perimeter portions are structurally coupled to each other. In another embodiment, the perimeter portion of the heat spreader is selected from material with a lower CTE than the material for the center portion of the heat spreader.

Abstract: A counter flow heat exchanger with integrated fins and tubes comprises metal plates overlapping with each other. Each of the metal plates has multiple elongated ridges spacing apart from each other. Adjacent metal plates oppositely overlap with each other such that the ridges in pairs form horizontal tubes and multiple connecting tubes on the plates form vertical tubes. A lowermost plate is set on two guide tubes, which are connected to lower ends of the connecting tubes and connected to a fluid pumping unit via a connecting pipe respectively. Thus, fluid inside the heat exchanger flows counter to external air and a better efficiency of heat exchange can be reached effectively.

Abstract: A liquid-cooled heat sink for use in combination with a heat exchanger to cool electronic or electrical devices attached to said heat sink comprises a metal block having a plurality of circular passageways therethrough defined by cylindrical walls. An inlet is in fluid communication with one end of the passageways for receiving a cooling liquid, and an outlet is in fluid communication with an opposite end of the passageways for outputting the cooling liquid. At least one tape insert is mounted within at least one of the circular passageways, wherein the tape insert longitudinally bisects the circular passageway and further wherein edges of the tape insert abut cylindrical wall.

Abstract: A disc drier is described where internally, in each disc, a number of corresponding profiles are arranged, which, when the two disc halves are put together to one disc, establish an engagement with each other to stiffen the disc.

Abstract: A circuit type modularized heat exchanger system comprises a heat exchange unit and a vapor chamber. The vapor chamber is jointed to the bottom of the heat exchange unit. The vapor chamber has a hollow space with a wick layer and the hollow space communicates with the tube tubes of the heat exchange unit so as to form a circuit. The heat exchanger system provides the advantages such as a better efficiency of heat transfer, less component parts and easy assembly and manufacture.

Abstract: A cooling apparatus has a heat sink that has a plurality of fins on the top face of a heat transfer plate opposed to a heat-generating body to be cooled in contact therewith. Comb-like baffle plates or raised baffle plates are inserted between the fins of the heat sink. This structure improves heat dissipation characteristics.

Abstract: A heat transfer tube (1) having a ribbed inner surface which is divided into at least two zones (Z1, Z2, . . . , Zn) in circumferential direction, which zones are classified into at least two zone classes (K1, K2, . . . , Kj+1, . . . , Km). Ribs (1) having a rib height h1 extend at a helix angle &agr;1 with respect to the longitudinal direction of the tube in the zones of at least one zone class (K1, K2, . . . , Kj). Ribs (2) having a rib height h2 extend at a helix angle &agr;2 in the zones of at least one further zone class (Kj+1, Kj+2, . . . , Km), which ribs (2) are intersected by ribs (3) having a rib height h3 extending at a helix angle &agr;3 (&agr;3≠&agr;2). Preferably are h2, h3≦h1.

Abstract: An improved counterflow heat exchanger is described. The heat exchanger has one or more cold air intake passageways and one or more hot air intake passageways wherein the flow of cold air is opposite the flow of hot air. In addition, each cold air intake passageway contacts at least one hot air intake passage way.

Abstract: Methods and apparatus employing inert gases injected into the lower level of sloping underground oil-bearing formations as a driving mechanism and water injected into the upper level of the formations as a gas blocking mechanism for increasing and extending the production of oil from underground formations is described. Also described is an inert gas oil production system comprising an exhaust gas processing system, a well inert gas and water injection system, an oil production well system, and a fuel gas generator. A hydraulically operated crude oil pump is also described.

Abstract: The invention relates to well construction and is directed at an oscillation excitation in a pipe string. According to the inventive method, an operating fluid is circulated in the pipe string. An autonomous mechanism for vibrational impact embodied in the form of an element, for instance a hollow ball having a rigid envelop and filled with gas, possessing a positive floatability, covering from 0.85 to 0.95 of a cross-sectional flow area of the pipe string and having an unrestricted degree of freedom. In the second variant, the inventive device comprises a ball support embodied in the form of a transverse beam or a crossbar rigidly connected to a spiral cylindrical spring arranged inside a tube under the ball with the aid of an easy-push fit. The spring force is selected with respect to a calculated axleload dependence on the mass of the ball and on flow strength with a basic flow rate of the operating fluid.

Abstract: A method of determining the extent of detonation of a Well Perforating Gun is disclosed. The Perforating Gun is positioned in a borehole and the detonation is initiated at one point on the essentially curvilinear array of explosive charges. Seismic waves emanate from the series of explosions, propagate away from the Perforating Gun and are detected at a distance away from the Perforating Gun using seismic receivers consisting of single or arrayed transducers of conventional design. The seismic receivers may be placed at or near the earth's surface and/or in one or more boreholes. The recorded seismic waves are processed and analyzed, and may be decomposed through a novel inversion process. The combined results are further analyzed to determine the extent of detonation including whether the gun fired or not, and if there was a misfire or partial misfire, the quantitative extent of the detonation.

Abstract: A method and a device for testing of a well, such as in a well liner, a newly drilled hole, and the like, is disclosed. The method is characterised in that a plug is directed down into the well, that the plug is fixed towards the wall of the well the sealing means of the plug is activated to seal against the wall of the well, and after the testing has ceased the sealing function is removed by disintegrating the plug. Preferably a plug of a disintegratable material is used, such as a ceramic material, glass or the like.

Abstract: The present invention concerns a cement slurry with high permeability and good compressive strength, comprising a solid fraction constituted by: 35% to 80% (by volume) of particles with a mean size in the range 100 microns (&mgr;) to 800 &mgr;; 0% to 15% (by volume) of particles with a mean particle diameter in the range 0.1 microns to 10 microns; and 10% to 40% (by volume) of particles with a mean particle diameter in the range 20 &mgr; to 50 &mgr;; a fraction of said-solid particles being constituted by a cement, and preferably a further fraction by self-destructive particles; a liquid fraction in a water/solid ratio in the range 38% to 50% by volume; and a percentage of cells, provided by a gas or a liquid which is not miscible with water, in the range 30% to 60% of the final volume of the slurry.

Abstract: A method for optimally orienting perforations in a subterranean formation is disclosed, the optimization process being based on establishing the orientation of bedding planes in the formation and, where applicable, hole size effects while determining an orientation of the perforation that balances the stress concentration along the circumference of the cross-section between perforation and bedding plane in further improvements of the method inhomogeneous stress distributions and permeability are included into the optimization process.

Abstract: A subterranean fracturing fluid, which is relatively harmless to both the environment and subterranean formations includes an amphoteric surfactant, specifically a betaine surfactant and an organic electrolyte or an alcohol in an aqueous medium. Depending upon the proportions of the ingredients, the fluid can be foamed.

Abstract: A method of installing a conductor or a casing in the sea bed, the conductor or casing being caused to penetrate a sea bed, the conductor or casing being substantially suspended from a length of coiled tubing. The conductor or casing being lowered to the sea bed by means of the coiled tubing, the coiled tubing being deployed from a reel on a floating vessel. Ideally a conductor may be deployed in the sea bed at the desired location, and subsequently a casing is introduced to the conductor. Alternatively the casing is introduced into a conductor, the casing and conductor substantially suspended from a length of coiled tubing, lowered to the sea bed by means of the coiled tubing, and caused to penetrate the sea bed. A length of coiled tubing is then introduced to the conductor or casing.

Abstract: An improved control system, particularly useful for SSVs, is disclosed. It is responsive to a rupture of the tubing and control line to equalize pressure on an operating piston to allow the SSV to go to its failsafe position. The annulus pressure-sensing feature can be employed with a variety of control systems, a particular one is used as an example.

Abstract: A valve has a pair of surfaces, such as those of pipes, with an inflatable bladder disposed therebetween. Controlled inflation and deflation of the bladder provides for control of flow through the valve. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A system for retaining an elongated member at a downhole tool comprises a key, a receiver at a downhole tool which is configurant to mention to receive at least one elongated member and a key.

Abstract: The present invention provides an apparatus and method for expanding a first tubular against a second tubular. In one aspect, an expander tool includes a mandrel coupled to a spline assembly such that an annular space is formed between the same. Seals are placed between the mandrel and the spline assembly to retain a fluid in the annular space. The fluid may be used to actuate one or more expander members disposed on the spline assembly. The spline assembly is movably connected to a housing, which is coupled to a torque anchor. In operation, the mandrel is rotated, which, in turn, rotates the expander members. Rotation of the mandrel also causes the spline assembly to extend axially, thereby pulling a first seal closer to a second seal. As a result, the pressure in the annular space rises due to the compression of the fluid in the annular space. The rise in pressure extends the expander members into contact with the first tubular and expands the first tubular against the second tubular.

Abstract: A method for stepwise varying fluid flow in a well utilizes a plurality of downhole valves which have orifices of different sizes in the valve bodies, so that fluid flow can be varied by partially closing one or more valves. The method may be used for testing gas wells such that the wellbore storage delays caused by gas compression and/or expansion in the production tubing are minimized.

Abstract: In the process for preparing phosphorus-nitrogen compounds by reacting phosphorus sulfides with an amino component which

Abstract: Fire suppressant apparatus comprises a container (11) which may be spherical or cylindrical with domed ends, housing a liquid such as water in an interior chamber (25) and having low pressure nozzles (19, 20) housed in recesses covered by caps or covers (26, 27). A gas generator (22) is also located within the chamber (25) and contains a stable combustible material (21) which can be ignited by an ignitor (26) triggered by a sensor (28). The gas generated by combustion of the material (21) drives the water out through the nozzles (19, 20) to form fine droplets the majority of which are in the region of 50 &mgr;m without creating a high pressure within the chamber (25). The burn time of the gas generator material is 15 to 20 seconds so that a mist or fog lasting at least this duration is generated in the protected environment and can be carried to the seat of a fire by convection currents within this environment.

Abstract: A package for an optical assembly of a type that uses bulk optics in an optical path will require environmental protection from contaminants. It is common to construct a substantially hermetically sealed package to provide environmental protection for the optical assembly but such hermetically sealed packages are expensive to construct and are not completely reliable. Consequently, the present invention provides a package (48) for an optical assembly with the bulk optics encapsulated by a silicone encapsulant (54) and encased within an epoxy layer (50) and supported by a substrate base (52). The package (48) for the optical assembly thus provides the bulk optics with the required environmental protection from contaminants.

Abstract: A downhole vibration tool consisting of a body assembly installed in a work string, and a drop-in dart valve assembly. An open inner bore through the body assembly allows the performance of operations through the body assembly. To activate the vibration tool, the dart valve assembly is dropped into the work string and pumped downhole into engagement with the body assembly. Once the dart valve assembly is in place in the body assembly, continued pumping of fluid will cause the tool to begin to vibrate longitudinally. When the jarring operation is finished, the dart valve assembly can be released from the body assembly and retrieved, with a wireline or coiled tubing unit.

Abstract: A cable assembly has a central core element with a central conductor surrounded by an insulating core sheath having a uniform wall thickness. A plurality of twisted pairs of wires surround the core element, abutting each other and the core to form a tube concentric with an axis defined by the center of the core, a conductive shield layer surrounds the twisted pairs and is uniformly spaced apart therefrom.

Abstract: A method is provided for reducing the stray noise associated with the transmission of the electrical power between a power source and a target. The method includes the step of interconnecting the power source and the target with a conductor. A shield is positioned about the conductor to prevent electromagnetic and radio frequency interference from passing therethrough. A low impedance path is provided for the stray noise to travel between a neutral point of the power source and the isolated target.

Abstract: A description is given of a method for screening the magnetic field generated by an electrical power transmission line comprising at least one electrical cable. The method comprises the insertion of the cables into a conduit comprising at least one layer of a non-grain-oriented ferromagnetic material, having a magnetic curve with a maximum value of relative magnetic permeability (&mgr;max) corresponding to a magnetic field value (H&mgr;max) of less than 1000 A/m. In one example, the ferromagnetic material is a steel with a low content of impurities.

Abstract: a wiring fitting of the type adapted to be supported in a floor opening in a floor of a building structure. The fitting includes at least one intumescent fire retarding member formed from a polymeric based intumescent material. Employing a polymeric intumescent material allows the intumescent members to be formed by molding or extruding processes. A relatively rigid intumescent material may be used to form components including a tubular insert sized for insertion into the floor opening, as well as other components that could otherwise be formed from plastic, such as the cover plate, the receptacle barrier, and the trim flange. A relatively flexible polymeric based intumescent material can be used to form seals in the fitting.

Abstract: An enclosure is provided for a high voltage electrical handling device, for example a transmission transformer, having a housing containing high voltage electrical componentry and at least one connector supported externally of the housing in communication with the high voltage electrical componentry. The connector is at a high voltage, having a surrounding electrical corona field. The enclosure includes walls connected to the housing and surrounding the connector at high voltage. The walls are spaced outside of the electrical corona field of the connector. Using an enclosure on high voltage equipment permits the equipment to be supported on the ground without the necessity of elaborate protection systems as found in typical electrical power switchyards or substations.

Abstract: A ground from a printed circuit board to the frame of an electronic system is formed by a biaxially-compressible conductive spring that is captivated between the printed circuit board and a plastic stiffener to which the board is fastened. The spring makes contact with a ground pad on the underside of the printed circuit board. As the board is fully installed in the electronic system, standoffs attached to the system frame make contact with the conductive spring, completing the ground path. Keyhole-shaped cutouts in the printed circuit board secure the board without the use of tools. When the board assembly is lowered onto the standoffs, the head of the standoff passes through the circular opening of the keyhole. The board assembly is secured in place by sliding it on the standoffs to a position in which the head of the standoff is over the narrower slot portion of the keyhole.

Abstract: A module for containing a circuit is provided that improves isolation between ports of the module as well as reduced parasitics and insertion loss. The module includes a housing and a receptacle. The housing has a front and the front has a longitudinal axis. The receptacle is accessible from the front of the housing. The receptacle is shaped to receive a circuit component and has its own longitudinal axis that is at an angle less than ±90 degrees with reference to the longitudinal axis of the front of the housing.

Abstract: A module for containing a circuit is provided that attenuates emitted signals without the use of a cover. The module includes a housing and a receptacle. The housing has a front having a certain thickness and the receptacle is accessible from the front of the housing. The receptacle is shaped to receive a circuit component and forms a waveguide.

Abstract: A housing for a multiway electrical adapter, the housing comprising a generally tubular body (2, 6) having are movable cap (16, 18) at least at one end, and at least one cable exit aperture (22, 14) formed at the junction of the or each cap and the body so that the adapter can be placed inside the body with a cable or cables protruding from the end, before the cap is placed in position.

Abstract: A set of cover 2 and support 3 for electric devices 4 comprising an intermediate support 1—on which frame 40 of the electric device 4 is mounted—and an decorative outer cover 2 with an inner frame 3, both mountable on the previously mentioned intermediate support 1. The frame 40 of the electric device 4 is mounted on the intermediate support 1; the decorative inner frame 3 is engaged in the decorative outer cover 2. The set protects the electric device 4 and the assembly opening 5. The decorative outer cover 2 and the inner frame 3 can be independently exchanged to vary the external appearance of the set.

Abstract: A system for managing cables is disclosed herein. A preferred aspect of the system comprises a flat panel monitor having a front surface, a rear surface, a left side surface and a right side surface. The system also comprises a plurality of downwardly facing cable portals coupled to the rear surface of the flat panel monitor and a stand coupled to the rear surface of the flat panel monitor, wherein the flat panel monitor is forwardly rotatable on said the on a horizontal axis; and a plurality of releasably connectable retaining member are coupled to the rear surface of the flat panel monitor.

Abstract: A method of making a two-stage twist-on wire connector comprising the steps of forming a housing; placing a spiral thread on an interior of the housing with the spiral thread having an open end and a closed end with a diameter of the open end of the spiral thread larger than the diameter of the closed end, the spiral thread diametrically converging in an axial direction toward the closed end; inserting a lubricant into the closed end of the spiral thread; inserting a plurality of wire ends to be splice into the open end of the spiral thread; twisting the plurality of wires and the wire connector to draw the plurality of wire ends proximate the closed end of the spiral thread to improve the continuity of said the splice; and applying the lubricant to the spiral threads by the twisting engagement of the wires with respect to the spiral threads.

Abstract: A plastic tape with a metal layer, comprising a tape body and a metal layer, formed of electroplating, provided on the surface of the tape body is adopted as a plastic tape, with a metal layer, provided on an insulation covering an inner conductor. By virtue of this construction, a coaxial cable and a coaxial multicore cable can be realized wherein, even when the outer diameter of the insulation is small, the tape can be easily and surely provided on the insulation and, in addition, the thickness of the metal layer can be satisfactorily ensured, whereby a deterioration in electric characteristics attributable to a plastic tape with a metal layer can be surely avoided.

Abstract: A jumper coaxial cable assembly includes a jumper coaxial cable and at least one solder-type connector secured thereto. The cable may include an outer conductor, which, in turn, includes aluminum with a tin layer thereon. The tin layer permits an aluminum outer conductor to be used, yet facilitates soldering of the solder-type connector onto the outer conductor. The tin layer may be a tin alloy, such as a tin/lead alloy, for example. The outer conductor may have a continuous, non-braided, tubular shape, and the tin layer may extend continuously along an entire length of the outer conductor. The tin layer may be readily formed by tin plating during manufacturing of the jumper coaxial cable. The jumper coaxial cable assembly may be joined to a main coaxial cable and/or to electronic equipment.

Abstract: A conduit is provided for transmission of electrical power. The conduit includes a plurality of conductors for operatively connecting the terminals of a power source to a target. A shield extends about the conductors for preventing electromagnetic and radio frequency interference from passing therethrough. Braiding extends about the shield and ground wires pass through the shield. The shield and the braiding extending about the conductors provide an uninterrupted low impedance path for both high frequency and low frequency electromagnetic and radio frequency common mode noise, associated waveform phenomenon, and associated stray currents that may be conducted, induced, or radiated by the transmission of electrical power on the conductors.

Abstract: A telecommunication cable comprises a very high number of modules (MO) each with a thin retaining sheath (3) clamping optical fibres (1-2) together. So as to facilitate ??ing out and identifying the modules, retaining sheaths (4) each contain a plurality of respective modules and are mechanically coupled to the retaining sheaths (3) of the respective modules to form super-modules (SM) in contact with an outside jacket (6-7). The retaining sheath (4) of a super-module (SM) comprises at least an identification color or line to distinguish the supermodule from other supermodules.

Abstract: A cable, which includes a plurality of tubes disposed continuously in the height direction, has one end which is fixed to a first cable-connecting section disposed at one end of a body of an electric actuator. The cable has the other end which is connected to a second cable-connecting section connected to a slider which is displaceable along the axis under the driving action of a rotary driving source. The cable is installed substantially horizontally with respect to the body. The dimension in the height direction is large, and the dimension in the thickness direction is small.

Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.

Abstract: A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium and oxygen in solid solution and heat treating the drawn wire in the presence of tin to yield at least one continuous filament comprising ultra-fine grain Nb3Sn having semi-coherent ZrO2 precipitates disposed therein. The ZrO2 precipitates serve to stabilize the ultra-fine grain microstructure of the Nb3Sn at temperatures up to 1100° C. and allows Nb3Sn to maintain the ultra-fine grain microstructure when heat treated at temperatures that are greater than those previously used. By using higher temperatures to form Nb3Sn, the time required for heat treatment can be significantly reduced.

Abstract: A conductor of flexible material on which electronic or electric components are arranged, is embedded at least partially in at least one shape-stable component. The conductor is manufactured by mounting the electric or electronic components on the flexible conductor, placing and positionally securing the conductor provided with the electric or electronic components into an injection mold, and embedding the conductor least partially in plastic material.