Abstract: The present invention relates to a device for continuous or semi-continuous casting of a metal material. The device comprises a first arrangement comprising a coil (7) having an extension around the casting mould (2) in an area, which is arranged to comprise molten metal material. The coil (7) is arranged to be fed with alternating current such that a varying magnetic field is generated and is applied to the molten metal material in the casting mould (2). The device also comprises a second arrangement comprising at least two magnetic poles (8), which are provided at opposite sides of the casting mould (2). The poles (8) are arranged to supply a static or periodic low-frequency magnetic field to the molten metal material in the casting area. The poles (8) comprise at least a portion (11) which comprises a plurality of material layers which are electrically insulated from each other.

Abstract: A method for producing silica sand-based foundry shapes useful informing metal castings and for reducing veining defects in sand-based foundry shapes by providing a foundry sand, adding an anti-veining composition that comprises bentonite to the foundry sand to form a mineral composition, then adding a foundry resin to the mineral composition to form a sand-based foundry composition and shaping the sand-based foundry composition to form a desired pattern.

Abstract: An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycled air streams travel independently in separate ducts until the air streams reach a remotely located mixing box where the air streams mix and ventilate into a room or zone of a building. The HVAC system uses carbon dioxide and temperature sensors in order to regulate the flow of fresh and recycled air to various mixing boxes throughout the building.

Abstract: A device for a temperature control in a vehicle has element forming a first circuit for circulation of a coolant, element forming a second circuit for circulation of a refrigerant, element for connecting the first circuit with an engine for heating the coolant, element for providing a heat exchange between the second circuit and the first circuit for cooling the coolant, an air temperature regulating element, and element for alternatively connecting the first element to the air temperature regulating element so that when the coolant is heated from the engine and supplied through the first element the air temperature regulating element heats air in the vehicle, or connecting the second element with the air temperature regulating element so that when the coolant in the first circuit is cooled by heat exchange with the refrigerant the second circuit the cooled coolant is supplied to the air temperature regulating element to cool air in the vehicle, and element for passing a medium selected from the group consist

Abstract: The present invention of a structure and manufacture of a heat sink with high heat transmission mainly uses a shear stress caused by stirring to break or crush the solidified arborescent primary crystal at a solid/liquid two-phase area of a aluminum alloy to form a slag fluid with ball-filled solid crushed grit; then ceramic grains are added in and dispersed by the solid grains scattered in the liquid-phase metal; through continuous stirring, the aluminum alloy becomes a fine mixed fluid of ceramic and aluminum alloy without arborescent forms; finally, the external configuration of a heat sink is accomplished through directly compression casting by using the special nature of the aluminum alloy to mold the entire heat sink and to enhance the effect of heat dissipation of the heat sink of the same structure through the high heat transmission efficiency of the ceramic grains.

Abstract: A computer heat sink, it especially suits heat sinking of various chip sets or processors which may generate high temperature during running, and has the effect of better efficiency of heat sinking and inexpensiveness of production. It includes many heat sinking fins on the periphery of a base which has centrally a receiving space for fixing a fan, when the air flow generated during running of the fan passes through the gaps among the fins, heat exchanging is induced between the air and the fins to effect heat sinking.

Abstract: A continuous heat sink adapted to an electronic device comprises a prefabricated slat folded into a plurality of perforated sections to define segregated spaces for ventilation and adhered by glue or fasteners to a base plate with a skirt folded at a right angle to each section; the base plate then is placed on the top of the electronic device for the heat to be conducted to the heat sink for dissipation, further improved by the holes that promote the lateral airflow.

Abstract: A heat conduction pipe includes an outer pipe (10), a plurality of inner pipes (20), and a pair of plugs (30). The outer pipe is made of a material having great heat conductivity, and defines a pair of openings in respective opposite ends thereof. Each inner pipe is a sealed vacuum pipe made of a material having great heat conductivity, and contains liquid work medium having great heat conductivity. The inner pipes are received in the outer pipe. The plugs seal the openings of the outer pipe and engage with the inner pipes. Liquid work medium having great heat conductivity is movably accommodated in the outer pipe.

Abstract: Among four plate 21 to 24 that make up a refrigerant container, an intermediate plate 22 in contact with a heat receiving plate 21 is so provided with semi-annular peripheral channels 221 that they surround a boiling area of a refrigerant and, at the same time, is provided with straight channels 222 extending from the peripheral channels 221 to the boiling area over substantially all around the circumference of the peripheral channels 221. According to this structure, even if the refrigerant container is used in a tilted position, a liquid refrigerant that has condensed completely is supplied to the boiling area through the straight channels 222 provided on the floor within the refrigerant container, after being stored in the lowest position of the refrigerant container through the peripheral channels 221 provided on the floor within the refrigerant container.

Abstract: An aluminum alloy heat exchanger having excellent hydrophilicity and resistance to absorption or impregnation of tobacco odorous components has an organic hydrophilic coating layer formed on at least a portion of a base body of the heat exchanger and containing (A) at least one chitosan compound, (B) at least one two or more carboxyl group-containing organic compound and (C) at least one hydrophilic polymeric substance different from the components (A) and (B), in which the total solid content of components (A) and (B) is 20 mass % or more and the solid content of component (C) is 0.1 to 10 mass %.

Abstract: The present invention discloses a heat exchanger fin having three rows of slit parts being arranged at the air inlet side and another three rows at the air outlet side relative to the centerline of heat transfer pipes 102, in order to reduce the ventilating resistance, prevent the growth of a boundary layer and reduce a dead zone on the downstream of the heat transfer pipes 102 to thus increase heat transfer performance. The outer slit parts 111 and 111′; and 116 and 116′ at the air inlet side and at the air outlet side are formed in pairs. The middle slit parts 112 and 112′ at the air inlet side are formed in pairs and the middle slit part 114 at the air outlet side is formed in a unit. The inner slit parts 113 and 114 at the air inlet side and at the air outlet side are also formed in a unit.

Abstract: A reboiler/condenser bath heat exchanger for heat exchange between a first fluid to be vaporized and a second fluid to be condensed includes a number of passages for heat exchange between the two fluids in order to make the second fluid flow, which fluid has a temperature of T2-2 at the outlet of the passages; a vessel containing the passages for making the first fluid flow between the passages by thermosiphon effect from the bottom upwards over a height h, the first fluid having an entry temperature T1-1 where T1-1<T2-2 and an exit pressure P1-2; elements for giving the entry pressure P1-1 of the first fluid a value such that the pressure P1-2 is greater than a minimum pressure Pm, ex and elements for ensuring that at least one of the following two conditions is fulfilled:

Abstract: A heat exchanger, particularly a flat-tube heat exchanger for a motor vehicle, which includes two coolant boxes and a tube block with an inlet tube attached to one of the boxes and an outlet tube attached to another of the boxes, and wherein each tube extends at least in part along one longitudinal side of the associated box and has at least one radial opening which communicates with a side opening formed in the box.

Abstract: A thermal interface material made of a binder material and a fusible filler.

Abstract: The invention provides a thermal transfer interface for dissipating heat from an object to a thermal spreader and/or heat sink. The spreader forms a plurality of passageways. A spring element couples with the spreader. A plurality of thermally conductive pins moves along the passageways, extending outwardly via the spring element for conformal and thermal contact with the object. Thermal energy transfers from the object to the spreader through the collective area defining the interface between the pins and the spreader. The spring element is preferably thermally conductive; and thermal grease added to the interface may beneficially decrease thermal resistances due to microscopic unevenness at the contact between the object and the pins and/or spring element. An additional heat sink may couple to the spreader to dissipate additional thermal energy.

Abstract: The invention relates to an actuating device (1) for displacing a control device (3), which is subjected to the action of force counter to the direction of displacement (2). Said actuating device comprises an actuating element, which, inside a device housing (4), can be axially displaced in a direction of displacement by a turning spindle (5) of an advancing device (6). The turning spindle is connected in a rotationally fixed manner to a turning sleeve (8), which is rotatably mounted in the device housing (4) and which surrounds the turning spindle. Said turning sleeve is fixed, in relation to an annular flange (9) that is connected to the device housing in a rotationally fixed manner, counter to an advance turning direction (11) of the turning spindle by means of a spiral spring (10). An emergency disengagement device for resetting the actuating element counter to the direction of displacement is assigned to the spiral spring.

Abstract: A well bore tool with a torsional resistant slip mechanism for resisting axial and torsional forces comprising a mandrel, a plurality of slips disposed about the circumference of the mandrel. The slips include a plurality of inserts oriented to resist axial forces and torsional forces. The tool also comprises a setting means adjacent each to slip for radially expanding and setting said slips.

Abstract: Tools for expanding downhole tubulars into each other or in open hole are disclosed. One embodiment uses a movable cone biased by Bellville washers to move longitudinally against such bias and allow collets to move radially in or out to a predetermined maximum diameter. A release system allows collet retraction to avoid hang up on removal. In an alternate embodiment, more suitable for open hole applications, pressurized gas pushes a movable cone longitudinally against the collets. A stationary cone is on the opposite side of the collets from the movable cone. The collet rides out or in between the cones and raises the gas pressure when forced in. A pressure actuated release allows the lower cone to shift downwardly to allow the collets to retract for removal.

Abstract: A bi-directional jar with bit turning capability is disclosed. To jar down, weight is set down on the tool and pressure is built up on a piston to move the body up while compressing a spring. When spring force opens the valve in the piston, the housing comes down striking an anvil as the flow rushes through the piston before the valve recluses for another cycle. The valve member features a hydraulic brake to slow its movement after the valve is forced open. Clutching action comes from an angled spline through a spirally cut cylinder, which reduces in diameter to engage the bit to turn. A single spring acts on a pair of pistons for bi-directional jarring. Modularity allows rapid conversion to uni-directional operation.

Abstract: In a device for sealing a bore hole and discharging drill cuttings and stripped excavation material, including a housing adapted to receive sealing elements and an opening capable of being connected to the bore hole, one side wall of the housing is provided with at least one opening for the connection of a haulage duct, wherein the housing end side facing the bore hole is equipped with a lockable, particularly screwable, sealing flange (13) for the detachable connection with a bore hole lining (11). The sealing flange (13) is rotationally and sealingly mounted within the housing and carries projections, in particular an annular brim (15) which is overlapped by a stop (14) of the housing.

Abstract: A centralizer apparatus for centralizing tubular casing in a borehole having two stop collars for securing to the casing in a spaced apart relationship and two moving collars, one slidably and rotatably coupled to each stop collar, a plurality of bow springs, each bow spring having a first end spaced apart from a second end, each bow spring biased outwardly from the center axis, the first ends connected to the first moving collar, the second ends connected to the second moving collar.

Abstract: The present invention relates to a downhole method and apparatus for locating a window in a wellbore casing and determining the depth and orientation of said window. Apparatus of the present invention comprises a body (4) and a window engaging member (6) mounted on said body (4) so as to be movable between a retracted position and an extended position. The engaging member (6) is adapted to project into a wellbore window when in the extended position during use and is further adapted to engage with a first position of said window in such a way that, when pressed against said window portion, the engaging member (6) tends to slide along wellbore edge defining said window portion so as to locate the engaging member (6) centrally in said window portion before preventing movement of the apparatus in the direction of pressing. The invention thereby allows the depth and orientation of a window in a wellbore to be determined.

Abstract: A one step squeeze treatment of a subterranean formation involves the treatment with a treating solution comprising an acid, a scale inhibitor, and a reducing agent. The presence of the reducing agent prevents the iron ions in the system from reacting with and forming a precipitate with the scale inhibitor and maintains the iron ions in the ferrous state.

Abstract: Method and composition for sealing a borehole. A chemically bonded phosphate ceramic sealant for sealing, stabilizing, or plugging boreholes is prepared by combining an oxide or hydroxide and a phosphate with water to form slurry. The slurry is introduced into the borehole where the seal, stabilization or plug is desired, and then allowed to set up to form the high strength, minimally porous sealant, which binds strongly to itself and to underground formations, steel and ceramics.

Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.

Abstract: An apparatus for filtering a drilling fluid. The apparatus comprises a cylindrical flange member having a first and second passage and a cylindrical sleeve having an internal fishing neck. An attachment pin attaches the flange member to the cylindrical sleeve. The apparatus further comprises a screen member attached to the cylindrical sleeve. In one embodiment, the first and second passage are disposed off-centered so that four bore holes are created. The attachment pin cooperates with a groove formed on the sleeve's outer diameter surface. The apparatus may further include a pulling tool. The pulling tool contains a plurality of dog members disposed about a mandrel, and a spring that urges the dog members into engagement with a protuberance on the mandrel. The apparatus further comprises a shear pin attaching the dog members to the mandrel and wherein the shear pin is disposed within a slot so that the dog members can move axially relative to the mandrel.

Abstract: A multilateral junction comprises a primary leg and one or more lateral legs. Each end of the primary leg and each lateral leg has an inflatable element therein. A method for installing a multilateral junction includes running a deformed junction to depth and serially or collectively inflating an inflatable element in each leg of said junction to reform said junction.

Abstract: A buoyancy system to buoy a riser of an offshore oil platform includes buoyancy compartments coupled around an elongated internal beam. The internal beam can withstand loads between the oil platform and the buoyancy system, while the buoyancy compartments provide buoyancy. The internal beam includes an elongated stem, a plurality of webs extending radially outwardly from the stem, and a plurality of transverse flanges attached to the outer edges of the webs.

Abstract: A hydraulic control assembly (80) for actuating a hydraulically controllable downhole device (100) comprises a hydraulic fluid source (82) located on a surface installation that supplies a low pressure hydraulic fluid, an umbilical assembly (88) coupled to the hydraulic fluid source (82) that provides a supply fluid passageway for the low pressure hydraulic fluid and a subsea intensifier (90) operably associated with a subsea wellhead. The subsea intensifier (90) is operable to convert the low pressure hydraulic fluid from the hydraulic fluid source (82) into a high pressure hydraulic fluid for actuating the hydraulically controllable downhole device (100).

Abstract: A tubing hanger is provided for suspending a tubing hanger from a wellhead housing. The tubing hanger body includes a production bore and an annulus bore, a valve opening inlet port, a valve closed inlet port, and a hydraulically operated ball valve to selectively open and close the annulus bore. An actuator sleeve surrounds the ball valve and is movable in response to fluid pressure between the open and closed positions.

Abstract: A method of isolating a reservoir of production fluid in a formation comprises providing a pair of valves (14, 16) in a bore intersecting a production formation and in which the hydrostatic pressuer in the bore at the formation is normally lower than the formation pressure, and then ontrolling the valves (14, 16) from surface such that the valves (14, 16) will only move from a closed configuration to an open configuration on experiencing a predetermined differential pressure across the valves.

Abstract: The present invention provides for high volume flow from a well. A retrievable formation isolation valve allows high volume flow through the remaining casing or tubing. Alternatively, a large bore valve configuration that is not retrieved, but remains as part of the casing, can be used. The present invention also includes methods to allow for high volume flow using retrievable isolation valves or large bore valves.

Abstract: Disclosed is a fire extinguishing spray nozzle connected to a vertical pipeline. The spray nozzle comprises a nozzle body with a plurality of micro apertures formed on a lower inner circumference thereof, and a nozzle cap connected to the nozzle body and having a guide line and orifices. The orifices of the nozzle cap are communicated with a chamber formed between the nozzle body and the nozzle cap, so that water supplied from the vertical pipeline flows to the orifices through the guide line. The nozzle body has a female threaded portion on an inner circumference of a connecting line, and the nozzle cap has a male threaded portion on a protruded portion thereof, so that the nozzle cap is threadly engaged to the nozzle body.

Abstract: The invention relates to a nozzle for foaming, spraying or misting in particular liquid, first media by means of at least one pressurized, second, in particular gaseous or gas-containing, medium, an outlet for the foam produced being arranged on the nozzle and the nozzle (1) comprising a housing (4) in which at least one radially, obliquely, tangentially, obliquely tangentially or perpendicularly tangentially inwardly directed duct (5, 5′) for feeding the second medium and a first inlet (6) for feeding the media to be foamed are provided.

Abstract: A modular fire detection and extinguishing system is disclosed that is inexpensive, compact, and modular to allow easy aftermarket installation in a variety of vehicles. The system may include a detector, a trigger coupled to the detector and a gas generant fire extinguisher, a modular distribution line in fluid communication with the extinguisher and a nozzle. The system allows exhaust gas from the gas generant fire extinguisher to carry dry powdered fire suppressant from the fire extinguisher and through the nozzle to disperse the fire suppressant substantially uniformly throughout a fire hazard zone. The extinguisher is installed such that exhaust gas must aerate substantially all the fire suppressant before exiting the extinguisher.

Abstract: A farm implement convertible between a work position and a transport position is disclosed. In the transport position, a compact package is formed less than eight feet in width and less than 14 feet in height. Right and left wings connected to the main frame may be raised by pushing articulated arms a short distance to fold the wings above the main frame.

Abstract: The present invention is directed to a multi-purpose gardening tool. In one preferred embodiment, the tool includes an arcuate central base. Extending from one end of the base is an arcuate scoop adapted to dig into, scoop up and transport a quantity of material. Extending from an opposite end of the base is a substantially V-shaped cutter having a sharpened peripheral edge for cutting through roots and the like. Preferably, the base, scoop and cutter are aligned and have a common radius of curvature to define a smooth bottom surface. The tool includes a handle extending generally parallel to a longitudinal axis of the tool. To protect a hand of a gardener gripping the handle, the handle offset from the peripheral edges of the scoop and cutter and the handle is supported at opposite ends by a pair of solid circular supports.

Abstract: Sweep retaining structure includes a spring wire retainer with a base supported in a groove on the underside of the wedge support which mates with a stem portion of the sweep. The wedge support is apertured, and a central curved portion of the retainer passes through the aperture and supports a sweep-contacting end above the surface of the wedge support. The end is biased toward a contact area on the sweep to engage the area and eliminate sweep loss problems by preventing the sweep from slipping downwardly from the mounted position. To remove the sweep, a tool is inserted through the slot to depress the retainer end, and the sweep is forced off the wedge support. A raised area on the sweep directs soil away from the retainer and contact area to reduce wear and eliminate depression of the end during operation. The underside of the raised area positions the wire end and provides bend-resisting support for the wire.

Abstract: A shelter for individuals or groups of people caught in the open in inclement weather especially when there is a danger of lightning. The shelter comprises an elongate electrically-conductive member for supporting a canopy, the elongate electrically-conductive member being configured as a lightning conductor; an electrically-conducting floor; and a coupling member for electrically connecting the elongate electrically-conductive member to the electrically-conducting floor. The coupling member includes a flange extending laterally away from the elongate electrically-conducting member, over the electrically-conductive flooring, to provide an enlarged footprint of engagement with the electrically-conducting floor.

Abstract: Electrical lead-through systems from atmospheric into vacuum environments are presented. Electrical feed-through structures (EFTS) comprised of a multiplicity of parallel connection lines used to operate e-beam tip-array sources in high vac environments for chip lithography are disclosed. In one embodiment, an EFTS comprises a sheet of insulating material having conductive tracks extending along potions of the sheet and a vacuum seal separating one portion from another portion of the sheet so as to maintain a pressure differential among multiple portions of the sheet.

Abstract: In a flexible printed circuit (10) for electrically connecting between a fixed portion and a movable portion comprising a flexible base layer (11), a conductive layer (13) formed on a principal surface (11a) of the flexible base layer through a first adhesive agent (12), and a cover lay (15) formed on the conductive layer through a second adhesive agent (14), copper foil (22) is pasted on an upper surface (15a) of the cover lay through a conductive adhesive agent (21). The copper foil is electrically connected to a ground portion (110) using solder. The fixed portion may be an optical disc drive's body (300). The movable portion may be an optical pickup unit (100) comprising an electromagnetic radiation source (200). The copper foil is for shielding electromagnetic noises radiated from the electromagnetic radiation source. The copper foil may be disposed only the vicinity of the electromagnetic radiation source.

Abstract: A mending apparatus for a leakage flux gap, to mend a shield having an opening, so that the electromagnetic radiation source is completely circumscribed, and the electromagnetic wave does not emanate to external. The mending apparatus has an additional metal plate and an S-shape common clip. The S-shape common clip is used to connect the shield and the additional metal plate, so as to seal the opening. The additional metal plate and the shield can be inserted into two spaces of the S-shape clip to block the opening.

Abstract: The present invention relates to a data transmission cable and the like comprising a structure reducing the frequency dependence of cable attenuation in digital transmission, thereby suppressing signal distortions. The data transmission cable comprises at least a pair of conductors, each coated with an insulator, extending along a predetermined direction; and a shield tape, provided so as to surround the conductors, including a metal layer. In particular, in the shield tape, the metal layer has a thickness of 1 &mgr;m or more but 10 &mgr;m or less, preferably 2 &mgr;m or more but 6 &mgr;m or less.

Abstract: An undetachable electrical and mechanical connection (4) between a contact element (7) has contacts (31) and a counter-contact element (8) has counter-contacts (27) with a flexible section (39) of the contact element (7) in at least the area of the contacts (31). Furthermore, the contact element (7) has at least one first and second layer (21, 22) which, in the area of the flexible section (39), define a gap (23) between them in which the counter-contact element (8) is located, the first and second layer (21, 22) each having at least one contact (31) on the inside surfaces (40) of the layers facing each other and the counter-contact part (8) having at least one counter-contact on each of its top and bottom (25, 26).

Abstract: A microelectronic assembly including elements such as a semiconductor chip and substrate has electrical connections between the elements incorporating fusible conductive metal masses. The fusible masses are surrounded and contained by a compliant material such as an elastomer or gel. The fusible material may melt during operation or processing of the device to relieve thermal cycling stress in the electrical connections.

Abstract: A faceplate for an electrical switchboard, comprising a body which has a substantially quadrangular shape and is provided with an opening to accommodate at least part of an electrical and/or electronic device of the switchboard, said faceplate being suitable to be operatively couples to a window provided on a plate, characterized in that said body has connection means for coupling to the plate, at the edges of said window, in a movable and adjustable manner with respect to the plate itself.

Abstract: A lever mounting portion is formed on a junction box to be accommodated inside an instrument panel. A hood release lever is fixed to the lever mounting portion of the junction box by merely sliding the hood release lever on the lever mounting portion and accommodated in the instrument panel. An opening is formed on a passenger compartment side outer surface of the instrument panel at a position where the junction box is accommodated. A decorative plate for closing the opening is removably provided. The opening that is exposed by removing the decorative plate therefrom is used to accomplish maintenance of the junction box and operate the hood release lever.

Abstract: A communications cable comprises an elongate cable jacket having an internal cavity and a plurality of twisted pairs of insulated conductors disposed in the internal cavity of the cable jacket, each of the conductors being insulated with a polymeric layer. Each of the insulated conductors within each of the twisted pairs of conductors defines a twinning helix having a first rotative direction, and each of the twisted pairs defines a bunching helix having a second rotative direction, the second rotative direction being opposite that of the first rotative direction. In this configuration, the communications cable can provide acceptable crosstalk and attenuation performance, even with foamed insulators that have demonstrated unacceptable performance when twinned and bunched in the same rotative direction.

Abstract: The present invention relates to an outdoor termination for a high voltage cable, comprising an insulator body for receiving the high voltage cable; a filling compound provided within the insulator body and filling at least a portion of the space between the insulator body interior walls and the cable insulation; wherein said filling compound consists of a mixture of particles and an insulating compound; wherein said insulating compound is a crosslinked polymeric material with a DIN ISO hardness of 200 to 500 mm/10.

Abstract: A space transformer and a method for making the space transformer. An electrically conductive material is placed in an inner region located in a silicon medium, the silicon medium defining both a first side and a second side at an outer region thereof. Electrical contact is established between the electrically conductive material in the inner region and both the first side and the second side of the silicon medium at the outer region to provide double-sided electrical contacts for the space transformer.