Abstract: A method for the finishing treatment of a fibrous web, includes applying on the fibrous web a polymer adhesive composition including a combination of optionally hydrogenated saccharides, having a low monosaccharide and disaccharide content, a limited polysaccharide content but a sufficiently high oligosaccharide content between DP 3 and DP 9. The invention also concerns a resulting paper or flat cardboard with enhanced physical, mechanical and/or optical properties.

Abstract: A tissue product comprising a plurality of first fibers and a plurality of silk fibers and a method of making the tissue product wherein the silk fibers are a different color than the color of the first fibers, as assessed by the human naked eye.

Abstract: The invention relates to a process for disperging a recycled fibre pulp, where a pre-dewatered pulp is heated, conveyed, and disperged in a disperger. It is mainly characterised the recycled fibre pulp being heated immediately before entering the disperging zone. In addition, the invention refers to a device for implementing the process.

Abstract: The present invention relates to a casting procedure for obtaining parts provided with inside cavities or holes, wherein said holes and/or cavities are obtained by laying into a mould or chill, intended to receive the molten metal, one or more cores made of sand or other material, and wherein a main core is used, realised into a special core box, along one or more secondary cores intended to be associated to said main core, comprising the following steps: coating at least one secondary core, only in the zones and by the pattern thickness with a layer of material intended to dissolve in contact with the molten metal; inserting the pre-coated secondary cores into the main core box yet to be moulded; moulding the main core box; and inserting the monolithic group obtained at the previous step, consisting of the main core, of the secondary cores and of the coating material that keeps them firmly connected, into the mould or chill intended to receive the molten metal.

Abstract: A method of making an investment or lost foam casting assembly of a first part movable with respect to a second part includes making first and second separate wax or foam patterns of portions of the first part. Then, a third wax or foam pattern of the second part is made. Next, ceramic core pieces are made. At least one of the core pieces is mounted on the first pattern to form a subassembly. The subassembly is combined with the third pattern so that the core pieces maintain a separation between the third pattern and the first pattern. The first and second patterns are bonded together to trap the subassembly and to form a complete casing assembly.

Abstract: Pattern for the lost foam casting process including a pouring-basin-foming portion, a sprue-forming portion, a runner-forming portion, a gate-forming portion, and a riser-forming portion. The sprue-forming portion forms an inverted conical sprue having a blade-lightener therein for quickly filling, and substantially simultaneously firing, the gates. A glue joint may be used between the pouring-basin-forming portion and the sprue-forming portion to increase the residence time of the melt in the pouring basin. The runners formed by the pattern each have an inline riser through which melt flows during pouring and in which melt is stored to feed the casting with melt during shrinkage of the casting. A sand dam surrounds the mouth of each gate and traps particulates from a liquid styrene layer that precedes the melt front in the riser.

Abstract: In a molding machine, foundry sand thrown into a molding space defined by a pattern plate and flask members is compressed in two steps. Namely, in the first step a lower subsidiary flask is stationary while in the second step the flask is movable. The pattern carrier molding machine comprises a molding base, flask-setting cylinders, a lift-support frame, and a segment-squeeze sand hopper. The auxiliary flask 62 of the compact pattern-plate carrier is installed movably up and down through a plurality of upward oil cylinders 63,63 that are expanded/contracted via special oil cylinders 64,65 operated by outside cylinders 68,69.

Abstract: A method for manufacturing cast components, in which method the cast mold and/or macroscopic inserts to be placed either totally or partly inside thereof are left totally or partly as a part of the final component to be used, after the casting the piece is further treated with temperature and/or pressure in order to improve the compactness of both the cast materials and the materials acting as inserts and to improve the bond between the cast material and the solid material attached thereto, and the portion of the solid or partly solid material (inserts) to be placed into the cast mold and remaining in the final component, inclusive the portion of the mold eventually remaining in the final component, of the weight of the total component is more than 3 percent by weight.

Abstract: A cylinder block has a cast cylinder liner. A different level portion with a predetermined width is provided in a projected part formed along the lower end-face of the cylinder liner, in the centrifugal direction of the cylinder liner. In this case, the different level portion has a width corresponding to the dimensional tolerance range with respect to a finished inside diameter dimension position, and a outer circumference edge of the different level portion is provided in the outer circumference side farther than the finished inside diameter dimension position. Displacement of a hole is detected by checking the different level portion after machining the internal circumference of the cylinder liner.

Abstract: Described herein is a device for pattern building in layers, which has a frame (1), a vertically movable and interchangeable workpiece platform (17), and a material feeder with a spreader (4), whereby the spreader (4) serves to feed material from a storage bin situated in the workspace above the workpiece platform (17), and the workpiece platform (17) is fixed at least when building a pattern. The workpiece platform (17) is accordingly loaded into the device from one side and unloaded from the other side of the device.

Abstract: A die-casting device at least includes a housing having a seat, a lower mold mechanism at the seat, an oil-pressured injection mechanism joined with a lower section of the lower mold mechanism, and a corresponding upper mold mechanism disposed at an upper section of the housing and driven by an oil-pressured mechanism for up-and-down movements; wherein, the lower mold mechanism is devised as a structure with an outwardly inclined angle. Thus, when adding a metal liquid to the die-casting device, the lower mold mechanism is first inclined outward, such that when the metal liquid is flowed in to a material reservoir of an injection mechanism, a flow speed of the metal liquid is reduced to avoid formation of the bubbles, thereby preventing finished die-casting products from containing bubbles and thus elevating product quality.

Abstract: Apparatus for producing a semi-solid metal alloy from a molten charge includes vertically aligned treatment zones which are provided by vertically aligned passages defined by a plurality of spirally wound flow pipes which are interspersed between spirally wound induction coils. A container is mounted on a charging arrangement which displaces a first charge upwardly into the first treatment zone. Successive charges are introduced in a similar fashion thereby urging the previously introduced charge upwardly along the train of zones and until the leading charge is ejected from the top of the apparatus. The charge in each zone is subjected to controlled cooling and an induced electromagnetic field. The strength of the field and the rate of cooling are controlled to impede dendritic crystallisation and to promote globular primary crystal formation.

Abstract: A method for the production of a shell mould. The method comprises the sequential steps of: (i) dipping a preformed expendable pattern into a slurry of refractory particles and colloidal liquid binder whereby to form a coating layer on said pattern, (ii) depositing particles of refractory material onto said coating, and (iii) drying, steps (i) to (iii) being repeated as often as required to produce a shell mould having a primary coating layer and at least one secondary coating layer, characterised in that during at least one performance of step (ii) a gel-forming material is also deposited onto the coating layer formed in step (i).

Abstract: The heating-air conditioning installation comprises an evaporator, heater body, fan and air outlet ducts, with at least one air stream controlling means beside the evaporator. The air stream controlling means allows an air stream that has bypassed the evaporator to enter directly, or get closed off from, air that has passed through the evaporator.

Abstract: A plate heat exchanger including a stack of heat exchanger plates and at least one connection plate having at least one opening with a flange extending from the plate around the opening, and a connector connecting a heat exchange medium to the connection plate opening for supplying the medium to or discharging the medium from the heat exchanger, wherein the connector is an injection-molded plastic part and the flange has crenellate protrusions which are deformed to mechanically fasten the connector to the closure plate. A reduced wall thickness defines a seat in the connection plate around the flange, and a seal is between the flange and the connection edge. The connector may have a cross-section at its connection to a supply or discharge line which is wider than the cross-section at the connection edge, and a seal is between the connector and the line in the wider cross-section.

Abstract: A joint structure of a header tank and a connector in a heat exchanger includes a header tank (1) including a plate wall (1c) formed with a first communication hole (1a). The joint structure includes a block-shaped connector (2) having a second communication hole (2b) positioned to the first communication hole (1a) and joined to the header tank (1). The first communication hole (1a) is smaller than the second communication hole (2b). The first communication hole (1a) has therearound a periphery (1b) caulked and fixed on an inner peripheral surface of the second communication hole (2a) by burring formation.

Abstract: Techniques for heat transfer are provided. In one aspect of the invention, a heat-transfer device is provided. The heat-transfer device comprises one or more microchannels suitable for containing a heat-transfer fluid, one or more of the microchannels having protruding structures on at least one inner surface thereof configured to affect flow of the heat-transfer fluid through the one or more microchannels. The structures may comprise posts coated with a hydrophobic coating.

Abstract: An apparatus for cooling at least one heated surface includes a base plate defining a number of inlet and outlet manifolds. The inlet manifolds are configured to receive a coolant, and the outlet manifolds exhaust the coolant. The inlet and outlet manifolds are interleaved. The apparatus also includes at least one substrate having inner and outer surfaces. The inner surface is coupled to the base plate and defines a number of microchannels that receive the coolant from the inlet manifolds and deliver the coolant to the outlet manifolds. The microchannels are oriented substantially perpendicular to the inlet and outlet manifolds. The outer surface is in thermal contact with the heated surface. The apparatus also includes an inlet plenum that supplies the coolant to the inlet manifolds, and an outlet plenum that exhausts the coolant from the outlet manifolds. The inlet plenum and outlet plenum are oriented in a plane of the base plate.

Abstract: A liquid-cooled pipe for use in a liquid-cooled heat sink kit is disclosed to include a pipe body, which has a close end, an open end, an axial passage extending from the close end to the open end, and a longitudinal series of through holes in the peripheral wall, a plurality of partition members respectively inserted into the axial passage of the pipe body connected in series with the partition plate of one partition member stopped against the legs of next such that each two adjacent partition members define with the pipe body a respective small chamber in fluid communication with two through holes of the pipe body, and an end cover plate fixedly fastened to the pipe body to seal the open end.

Abstract: A high performance cold plate cooling device including multiple, relatively thin plates, each having patterns formed thereon that, as arranged within the device, cause turbulence in a fluid passing within the cooling device. Adjacent plates within the cooling device are arranged such that fluid channels within their patterns are arranged crosswise. One or more barriers extending at least a portion of the length of the device separate the crosswise channels into two or more flow sections and increase uniformity of thermal performance over the active plate area. Manufacturing of the device includes stacking the plates in an alternating fashion such that the channels within the pattern of each plate are crosswise with respect to the channels in the pattern of an adjacent plate and adjacent barrier walls abut.

Abstract: A multi-fluid heat exchanger and a method of making the same are provided wherein a cut portion is provided in an elongated header of the heat exchanger at a location between a pair of baffles in the elongated header and first and second cores of the heat exchanger. At least a majority of the transverse cross section of the elongated header is removed at the cut portion to allow for relative thermal growth of the first and second cores.

Abstract: The invention relates to a device for coupling a coolant supply to a roller, especially for continuous casting installations. According to the invention, the roller is mounted in a pillow block by means of journals and roller bearings, and can be supplied with a coolant by means of at least one axial borehole guided through the journals. The inventive device comprises a sealing unit, preferably in the form of an elastic sleeve, that can be fixed to the journal in a pressure-tight manner, in order to carry out the coupling to the borehole and a pillow block cover that can be fixed to the pillow block for covering the borehole and comprises at least one coolant channel that can be connected to the coolant supply. An insert can be introduced into the pillow block cover in order to couple the borehole to the coolant channel.

Abstract: A heat pipe includes a main body, a wick structure, and a working fluid. The wick structure is formed on an inner wall of the main body and the working fluid is filled in the main body. The coil-shaped wire is attached to the inner wall of the main body so as to form a plurality of grooves. The coil-shaped wire is obtained by winding a copper wire around a supporting frame which has a predetermined shape corresponding to the main body. The supporting frame can be exactly accommodated within the heat pipe.

Abstract: A heat pipe structure, having a tubular member, a support member and a wick structure. The tubular member is hollow to accommodate the support member and the wick structure therein. The wick structure is located between the tubular member and the support member. The wick structure is supported by the support member to be attached to an interior wall of the tubular member. The material melting point of the wick structure is lower than those of the tubular member and the support member. Therefore, the support member maintains good supporting function during sintering process, such that the wick structure can be adequately attached to interior wall of the tubular member.

Abstract: A modularized cooler includes the at least two heat radiator modules arranged in a stack, each heat radiator module having a set of radiation fins, heat-exchange tubes arranged in parallel and surrounded by the radiation fins, two locating plates holding the heat-exchange tubes in place, and a plurality of first bends and second bends respectively connected between every two adjacent heat-exchange tubes at two sides of the radiation fins and forming with the heat-exchange tubes a continuously S-shaped piping having an inlet and an outlet, and at least one connecting tubes that connect the S-shaped pipings of the heat radiator modules in series.

Abstract: A support device for supporting a plurality of elongated members. The support device having a longitudinally extensive strip having a plurality of sets of transverse corrugations located at successive longitudinal locations along the strip. Each set of transverse corrugations forming a plurality of elongated member engaging zones extending laterally outwards from both faces of the strip to engage the elongated members in the tube bundle on opposite sides of a tube lane. The support device is useful to support elongated members in a bundle and to mitigate the possibility of damage from flow-induced vibration in elongated members.

Abstract: A wound tube heat exchanger 10 article that receives a heat exchange fluid and its method of manufacture. The exchanger 10 has one or more layers 12 of a tube 14. In one embodiment, the tube surface is bare. In other embodiments, the outside tube surface is enhanced to produce turbulence. At least some of the layers 12 have an ovate oblong configuration. A pair of opposing linear runs 16,18 is connected by a pair of opposing curved sections 20,22. In some embodiments, the layers are circular, oval or rectangular with radiused corners. An elongate spacer member 24 has forwardly 26 and rearwardly 28 facing edges. Defined within those edges are engagement surfaces 30 that detachably retain the opposing linear runs 16,18.

Abstract: A spirally wound tube heat exchanger 10 article that receives a heat exchange fluid and its method of manufacture. In one embodiment, the exchanger 10 has one or more spirally-wound layers 12 of a tube 14. In some embodiments, the layers are circular, oval or rectangular with radiused corners. An elongate spacer member 24 has forwardly 26 and rearwardly 28 facing edges. Defined within those edges are engagement surfaces 30 that detachably retain the tube 14.

Abstract: A plate-tube type heat exchanger not requiring maintenance is described, comprising: a plate with a plurality of channels running parallel along thereof; and, a plurality of tubes housed and secured to said channels, thus forming a circuit for the circulation of a heating fluid, a cooling fluid or a means of heating; the plate includes integrally attachment means associated to each channel, which in their closed position, cover along with its corresponding channel, almost the entire tube external perimeter housing in said channel, thereby securing each of the tubes to the whole plate, without the use of welding and a large contact surface is achieved for the heat conduction between the plate and each one of the tubes.

Abstract: The present invention relates to a tool for use in an oil pipe having a fluoropolymer coating imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said tool, and impermeability to salt water so as to protect the tool pipe from corrosion. Such a tool is particularly useful in a pipe coated in a similar manner.

Abstract: A coalbed methane production method comprises acoustic radiators strategically placed within exhaust boreholes that sonically vibrate the immediate wall areas. The gas volume output that can be realized by an exhaust well is mainly determined by the penetrability of the inside faces of the borehole. Such inside faces behave like a filter matrix, and the important areas involved in restricting the gas flow the most are not more than a few diameters away from the exhaust well in the collector zone. Therefore, the more permeable that such immediate area around the exhaust borehole can be made, the higher will be the volume of gas produced. Strong sonic vibrations from the acoustic radiators positioned in a drillstring shake open spaces in the media for the gas to flow out and be collected. The media experiences a type of elastic collapse under the differential pressures that are exerted the strongest near the borehole opening.

Abstract: A probe 1 for measuring the electromagnetic properties of a down-hole material MC, GF, DM of a well-bore WB comprises a metallic pad 2 in contact with the down-hole material. The pad 2 further comprises an open-ended coaxial wire 4 coupled to an electronic circuit 3. The open-ended coaxial wire 4 comprises an inner conductor 4A sunk in an insulator 4B and is positioned sensibly perpendicularly to the well-bore wall. The electronic circuit 3 is able to send a high-frequency input signal into the open-ended coaxial wire 4 and to determine a reflection coefficient based on a high-frequency output signal reflected by the open-ended coaxial wire 4.

Abstract: A screen apparatus, which in certain aspects is a screen apparatus having a support, screening material on the support, and energizable identification apparatus on (exteriorly, interiorly, and/or within) the support for identifying the screen apparatus; a vibratory separator with such a screen apparatus; and a vibratory separator or shaker with energizable identification apparatus.

Abstract: A method for well construction and completion is disclosed. First, a productive section of a well is drilled in the presence of a fluid system that controls fluid losses, is substantially non-damaging to the formation and includes particles in a particle size distribution sufficient to form a low permeability filter cake on a formation face and to allow the majority of the filter cake particles to flow back into the borehole after well completion. after drilling, a casing includes at least one and preferably a plurality of extendable permeable elements or member is run in the well so that the elements are positioned and aligned with sites in the producing formation and once extended form production conduits between the formation and an interior of the casing. A completed borehole is also disclosed including a casing having production conduits formed from the extendable members or elements.

Abstract: A method is disclosed for fracturing and gravel packing a subterranean well. The method allows gravel slurry to be pumped at high rates to fracture the earthen formation adjacent the wellbore. Also, the method allows the annulus between the gravel pack screen or liner and the casing to be tested for annular gravel filling. The method abates the abrasive wear on the casing wall and eliminates the crossover service to normally utilize during gravel pack and Frac Pack operations.

Abstract: Method and apparatus are provided to accelerate the cooling of thermally sensitive components in a chamber of a downhole instrument assembly. In accordance with the invention, a passage is formed in the chamber and a fluid is conveyed through the passage to cool the components to the desired temperature. By using the method and apparatus of the present invention the amount of time to cool the components is dramatically less than the time required for cooling using conventional techniques.

Abstract: A downhole cleaning tool (10) for oil mind gas wells. Brushes, scraper, wipers (32) and the like are mounted on a sleeve (14) over a tubular body (12), and the members successively moved towards and away from an inner surface of a tubular to be cleaned. Movement is created by a jarring action on the tool with the sleeve traveling over undulating profiles (26) on the body to actuate the cleaning members. The tool may be deployed on a slickline or wireline.

Abstract: A method for installing a subsea completion system comprises installing a conductor housing on the sea floor, landing a wellhead in the conductor housing, securing a BOP to the wellhead, landing a casing hanger in the wellhead through the BOP, connecting a tubing hanger to a THRT, landing the tubing hanger in the wellhead or the casing hanger through the BOP, installing a wireline plug in the tubing hanger production bore through the THRT, retrieving the THRT, retrieving the BOP, securing an ROSL to the christmas tree, landing the christmas tree on the wellhead, and retrieving the wireline plug from the tubing hanger production bore using the ROSL.

Abstract: A latch assembly is connectable to a riser. A rotating control device can be positioned with the riser, sealing the rotating control device with the latch assembly and removably latching the rotating control device to the latch assembly and to the riser. The latch assembly can be remotely actuated. The latch assembly can provide an auxiliary safety mechanism to provide a backup actuation mechanism to unlatch the rotating control device from the latch assembly. The latch assembly can be bolted to the riser. Alternately, the latch assembly can be latched with the riser using a similar latching mechanism as used to latch the latch assembly to the rotating control device. A pressure transducer protector assembly can protect a transducer for monitoring wellbore pressure in the riser. A remote indicator panel can indicate the status of the latch assembly.

Abstract: A well production and multi-purpose intervention access hub for flowing fluids from multiple wells to a host facility through a flowline. The hub comprises a production header module and a flowline header module configured for fluid communication with the flowline. The production header module and the flowline header module connect to form a hub bore that is in fluid communication with the flowline and extends through the utility interface. A utility module may connect with the hub for fluid communication and mechanical tool intervention access with the hub bore. The hub comprises valves for isolating the fluid communication between a well the hub bore from the fluid communication between another well and the hub bore. The valves also allow fluid communication between an isolated well and the utility module upon connection of the utility module to the hub.

Abstract: A tensioner for an offshore structure has inner and outer barrels engaging each other for movement between retracted and extended positions. The barrels are filled with gas pressure. A primary seal is located between the inner and outer barrels at the open end of the inner barrel. An annular lubricant reservoir is mounted to an interior wall surface of the inner barrel at the open end of the inner barrel. A lubricant port extends from the lubricant reservoir through the inner barrel to a high pressure side of the primary seal for dispensing lubricant between the inner and outer barrels. A fill tube leads from the reservoir to the exterior of the inner barrel for replenishing lubricant.

Abstract: Method and apparatus for installing control lines and pipe into a well. The pipe-holding spider that is normally mounted on the rig floor is supportably retained in a vertically movable retainer. The retainer is adapted for controllably elevating the spider above the rig floor when the pipe slips within the spider are not engaged with the outer surface of the pipe string, thereby providing personnel access to a portion of the length of the pipe string below the elevated spider and above the rig floor. Personnel are provided with access to the pipe string for applying a fastener to secure the control line to the pipe string. The control line is supplied from above the spider and is positioned by a control line guide supported on the spider or retainer to pass through the spider outside the path of pipe gripping members within the spider.

Abstract: A system for radially expanding tubular members includes an expansion device and a vibratory device that generates vibratory energy for agitating at least one of the expansion device and/or the expandable tubular member.

Abstract: An alignment apparatus for use with the assembly of tubular segments with a tubular string in a well bore is disclosed. The alignment apparatus includes an actuator assembly functionally associated with an engagement assembly. Upon actuation of the actuator assembly, the engagement assembly engages the segment. The alignment apparatus is then lowered such that the segment contacts the string, and a connection may be made. A method of improving the alignment of the segment with the tubular string in the well bore is also is also disclosed.

Abstract: An anchoring tool to position an attached tool, such as a chemical cutter or other tools, in a predetermined position within the bore of a tubular. After the desired location for cutting the tubular or performing other functions is determined, the anchoring tool, along with the chemical cutter or other tools, is lowered into the bore of the tubular until the predetermined position is reached. Thereafter, an ignitor expands pressure propellants, positioned within the body of the anchoring tool, and produces pressure which causes anchoring slips to anchor the tool and any associated equipment within the interior of the tubular.

Abstract: Embodiments of the present invention provide methods and apparatus for reducing kinetic energy of a plunger within a plunger lift system. In one aspect, a lubricator is provided at a surface of a wellbore, the lubricator having a sealed, pressurized chamber therein to cushion the plunger upon impact. In another aspect, a method is provided for reducing the kinetic energy of the plunger by providing a compressed gas chamber within a lubricator, moving a kinetic energy-reducing surface which is partially bounding the chamber, and compressing the gas within the chamber to reduce kinetic energy of the plunger and cushion the impact force of the plunger.

Abstract: A height control system for an implement coupled to a tractor is provided, the implement being raised and lowered by a hydraulic cylinder on the implement, and the height of the implement being sensed by a position sensor on the implement. An operator input device, such as a lever, is coupled to a digital controller network on the tractor and is used to position the implement before setting upper and lower desired implement heights or set points. The operator input device is also used to raise and lower the implement to the upper and lower desired implement heights by moving the operator input device between first and second predetermined detent positions.

Abstract: A protective shield for a trimmer having a cutting head that is rotatable about an axis of rotation and supports a cutting thread that rotates about an axis of rotation with the cutting head and determines a cutting circle, covers at least partially the cutting circle. The protective cover has a base member and a cutting-to-length blade arranged on the base member so as to be positioned circumferentially relative to a cutting circle of the rotating cutting thread. The cutting-to-length blade has a cutting edge that, relative to the axis of rotation of the rotating cutting thread, is arranged in an axially displaced position displaced in an axial direction relative to the cutting circle. A device for axially deflecting the rotating cutting thread out of the cutting circle to the cutting edge is provided.

Abstract: An earth hole coring apparatus and method includes an open receptacle with a surrounding sidewall about an axis, with first and second open ends transverse to the axis defining a receptacle interior, and a first open end perimeter less than a second open end perimeter. An extension member with a proximal end adjacent to the sidewall and a distal end, positioned substantially parallel to the axis and a driving member adjacent to the extension member and receptacle positioned substantially transverse to the axis, offset to the extension member with a long and short extension. A handle adjacent to the extension member is substantially transverse to the axis located between the driving member and distal end, being approximately co planar to the driving member, and offset to the extension member having a long and short extension, the handle long extension opposite the driving member long extension related to the extension member.

Abstract: A lifting device includes, in its lower part, two arms articulated on a shaft linked to the tractor for attaching two low lateral points of the implement, and in its upper part at least one element linking a third point between the tractor and the implement, the arms being controlled by the lifting element. The linking element has a variable useful length. A device responsive to the angular position of the arms includes a first transducer associated with one arm to deliver an electric signal depending on the angular position of the arm, and at least a second transducer responsive to the length of the third point linking element to deliver an electric signal depending on the length. An electric circuit, with the transducers connected in parallel between a line terminal and the ground connection, mixes the signals from the transducers and deliver the signal, controlling the lifting element.