Abstract: A pallet labeler station for applying a printed label to a loaded pallet at a predetermined label position includes a label printer for printing a label to be affixed to the loaded pallet, a rotatable label applicator mechanism for applying the printed label to the loaded pallet at the predetermined label position and a drive mechanism for moving the label applicator mechanism so as to apply the printed label to the loaded pallet at the predetermined label position. The pallet label station includes a programmable control that receives data defining the predetermined label position and causes the drive mechanism to move the label applicator mechanism to the proper position so as to apply the printed label to the loaded pallet at the predetermined label position defined by the label position data.

Abstract: An apparatus of manufacturing cleaning pads includes a base, a pair of supply plates mounted over the base, which has a supporting plate protruded from an end of the supply plate, a lifting plate located on both side of the supporting plate, a ultrasonic horn with a groove in a bottom being vertically movable, located over the supporting plate and driven by a ultrasonic oscillator, an actuator mounted on both sides of the ultrasonic horn to help the ultrasonic horn separated from the cleaning pad, a moving body located right under the supporting plate and being reciprocally movable along a guide rail, a rotary blade mounted on a upper end of the moving body, an air cylinder to make the moving body reciprocally moved, and an inhaler to draw off a broken pieces of the cleaning pad, wherein the actuator includes a case mounted on a side of the ultrasonic horn, a press member being vertically slidable in the case, a bottom of which is movable lower than that of the ultrasonic horn, and a spring located in the cas

Abstract: An ultrasonic container sealing method of sealing a closure 12 to a container main body 11 with use of an ultrasonic horn 54 having a sealing action face 53 comprises applying pressure to a lap of an outer peripheral portion of the closure 12 and a flange 24 of the container main body 11 as lapped over each other by the sealing action face 53, and causing ultrasonic rotational vibration in a rotating direction about an axis parallel to the direction of application of the pressure to act on the sealing action face 53.

Abstract: A method for forming boards of foamable materials, includes preparing and heating two plastic materials and a foamable material which is disposed between the plastic materials. The plastic materials and the foamable material are then squeezedto form a board having two outer layers formed by the plastic materials, and an intermediate layer formed by the foamable material. An air or a foamable agent may be injected into the foamable material before conducting the squeezing process, in order to decrease the density and the weight of the foamable material and the boards.

Abstract: There is provided an apparatus for joining films wherein a rear end portion of a preceding film and a front end portion of a trailing film are mutually joined without using a joining material such as an adhesion tape or the like to sufficiently contribute the joint portion to heat seal likewise the other portions of the films and realize excellent liquid tightness and airtightness of the joint portion itself and also tensile strength required for the film itself is given to the joint portion.

Abstract: The wheel hub of a bicycle is made of a single part of structural fibre based material, typically carbon fibre material, after reticulation in a mould which exploits the expansion of a core to obtain the application of a radial pressure to the tubular body consisting of layers of structural fibre based fabric.

Abstract: A stretch label attaching device for attaching a stretch label on a good, including an adapter supporting the label from the inside thereof and has an opening into which the good is inserted; an adapter support member configured to support a lower portion of the adapter and has an opening into which the good is inserted; and an adapter fixing member configured to fix the lower portion of the adapter together with the adapter support member. A method for attaching a stretch label on a good including setting a stretch label on the adapter mentioned above; inserting the good into the openings of the adapter and adapter support member while extending the label at a ratio not greater than 5%; and releasing the stretch label attaching device from the good while holding the label, to attach the label to the predetermined position of the good.

Abstract: A process and system for printing images or text and transferring the printed image to a ceramic, glass or metal substrate, by means of a computer controlled inkjet printer spraying a water based ink onto the surface of water slide transfer paper to thereby form an adherent image area.

Abstract: A method of forming an overlay (310) to form a rule die (320) comprising the steps of: forming an overlay using a method consisting of the steps of: creating an imaged receiver sheet (140) having an image (210), a first thermal print layer (224), and first support layer (150); laminating an imageless receiver sheet (160) having a second thermal print layer (228) and a second support layer (170) with the imaged receiver sheet, thereby encapsulating the image; removing the first support layer; and removing the second support layer. The overlay has an electrostatic charge to verify or form the rule die.

Abstract: A method that allows to obtain embossings on ultraviolet-coated surfaces of panels and the like or of cladding films and also allows to recondition the surfaces and edges of panels of chipboard or the like in order to prepare them for printing or facing, comprising the steps of: coating the surface to be treated and coupling on the fresh UV coating a release element (5) that is not fully opacified or is transparent, so as to allow UV light to pass, allowing partial or total hardening of the photochemical coating, so that the release element can be removed clean, leaving the intended impression on the surface. Full polymerization of the coating is then performed by subjecting the exposed surface to further irradiation.

Abstract: An apparatus for feeding and cutting lengths of tape and advancing the lengths to a vacuum wheel applicator, the feed section of the apparatus comprising a feed roll, an anvil vacuum roll, and a rotary knife adjacent to the anvil vacuum roll, and means for adjusting the speed of the feed roll and the speed of the anvil vacuum roll to vary the length of the tape advanced to the applicator, and a tape roll splicing assembly to provide a continuous supply of tape to the apparatus.

Abstract: The present invention provides a method of connecting substrates using light activatable film while preventing the deterioration of the substrate in the process. The present invention also provides a method for connecting circuits which includes irradiating a light activatable adhesive film, contacting the first surface of the activated anisotropically conductive adhesive film with the circuit on a first substrate, contacting the circuit on a second substrate with the second surface of said activated anisotropically conductive adhesive film, and compression bonding these substrates.

Abstract: A method of making a fluid impervious seam in a multilaminate fluid impervious medical fabric is disclosed. The multilaminate fluid impervious medical fabric includes at least two layers having different melting points, at least one of the layers is comprised of a fluid impervious material. The method includes overlapping two portions of the multilaminate fluid impervious medical fabric to form an overlapped region wherein the two layers having the innermost position in apposition to one another have a lower melting point relative to the melting point of the fluid impervious material layer. The two portions of multilaminate fluid impervious medical fabric are heat sealed together at the overlap at a temperature which is equal to or greater than the melting point of the innermost identical layers and which temperature is less than the melting point of the fluid impervious material layer.

Abstract: An adhesive agent is applied to both single plates, upper and lower, in which case the formation of bubbles is minimized by using a specified application manner. A method of laminating optical disks (D) comprising the steps of placing a lower disk single sheet (D1) on a turntable (1), applying an adhesive agent (R1) in doughnut form to the lower disk single sheet (D1), placing an upper disk single sheet (D2) on another turntable (2), applying an adhesive agent (R2) in doughnut form to the upper disk single sheet (D2), placing the upper disk single sheet (D2) on the lower disk single sheet (D1), and spreading the adhesive agent (% 2) between the two disk single sheets by rotating the turntables. Since bubbles hardly enter the adhesive agent, the bubble content of the adhesive agent after spreading is very small, and even after the curing subsequent to ultraviolet ray radiation, the air content of the optical disk can be minimized, the quality being high.

Abstract: A packaging material, a method of making such a material, and a package made from such material, are disclosed. A substrate comprises at least one sheet of plastic material. An energy-curable coating is applied to one side of the substrate, which will be the outside of the eventual package. The energy-curable coating is cured by exposing it to an electron beam or other appropriate energy. A cold-seal cohesive coating is applied to the other side of the substrate. The package is formed by pressing together portions of the inside surface of at least one sheet of the material having the cold-seal cohesive coating on them to form a seal. Preferably, the cold-seal cohesive coating is applied only to those portions of the material that are to form seams in the eventual package.

Abstract: Methods for etching a target conducted in an etching solution that is substantially free of entrained oxygen gas, thereby inhibiting oxidation of an etching target, and apparatus for achieving the same. An etching solution that is substantially free of entrained oxygen gas is achieved by driving off the entrained oxygen gas with an inert gas.

Abstract: An apparatus for applying different amounts of pressure to different locations of a backside of a semiconductor device structure during polishing thereof. The apparatus is configured to be associated with a wafer carrier of a polishing apparatus and includes pressurization structures configured to be biased against the backside of the semiconductor device structure during polishing thereof. The pressurization structures are independently movable with respect to one another. The amount of force or pressure applied by each pressurization structure to the backside of the semiconductor device structure is controlled by at least one corresponding actuator. The actuator may magnetically facilitate movement of the corresponding pressurization structure toward or away from the backside of the semiconductor device structure. The actuator may alternatively comprise a positive or negative pressure source.

Abstract: The present invention relates to a plasma process chamber, which includes: an upper housing having a gas inlet connected to a gas source, and a gas shower head placed in the upper housing; and a lower housing having a gas outlet connected to a vacuum pump, and a substrate provided on the inner bottom of the lower housing. On the substrate is placed a wafer. A plasma reactor is provided between the upper housing and the lower housing of the plasma process chamber. The plasma reactor is provided on the outer circumference of its main body with at least one reactor tube of horseshoe shape. A closed magnetic core is attached to the reactor tube, and a coil is wound on said magnetic core. The coil is connected electrically to an A.C. power. The plasma reactor is placed in the middle area of the plasma process chamber and a plurality of the reactor tubes are provided on the outer circumference of the plasma reactor so that plasma reaction is generated and distributed evenly in the plasma process chamber.

Abstract: An apparatus is provided for joining together substrates, which have an inner hole, to form a substrate disk. An expandable element is introducible into the inner hole of at least two superimposed substrates. The element is expandable to such an extent that it can come into contact with the inner holes of both of the substrates to close off an intermediate space formed between the substrates relative to the environment. A substrate support is rotatable about an axis of rotation perpendicular to a support surface thereof. A centering device is rotatably coupled with the substrate support and is movable relative thereto in the direction of the axis of rotation. The expandable element is disposed, and is compressible, between the substrate support and the centering device.

Abstract: A machine for presenting a tire with the axis horizontal, allowing access to the inside of the tire, which has a frame bearing an upright on which a support for the tire is mounted for vertical translation, the support ensuring on its own the holding and rotation of the tire about its axis by being in contact with the latter solely via a toric section of the tire, this section being arranged substantially vertically when the tire is installed on the machine.

Abstract: A roll-up curtain assembly includes plural, vertically spaced, horizontal roll-up rods extending across an opening. Each roll-up rod is coupled to a respective flexible curtain section and an electric motor. Actuation of the electric motor in a first direction of rotation causes rotation of the roll-up rod in a first direction for rolling the flexible curtain section onto the rod and moving the curtain assembly to the retracted, or open, position. Actuation of the electric motor in a second, opposed direction of rotation lowers the roll-up rod resulting in an unwinding of the curtain section from the rod allowing the curtain assembly to assume the extended, or closed, position. Plural vertically spaced curtain sections each having a respective motor/roll-up rod combination are coupled together and move upward or downward in unison.

Abstract: A cordless blind contains one or more spring motors, one or more cord collectors and a lock mechanism. The lock mechanism has a button or lever or two buttons or levers which when pressed and released will change the lock from a locked position, wherein the lift cords are restrained from being collected on or released from the cord collector, and has an unlocked position that allows the lift cords and cord collector to freely move when pressed again the button or lever will change the lock mechanism from the unlocked position to the locked position. A cord or wand may be connected to the button or lever. Then the operator can place the bottomrail or moving rail of the blind at any desired location between a fully raised position and a fully lowered position.

Abstract: An automatic door and method of operating the same. The door includes a first processor which may be located proximate a leading movable edge of the door and a second processor which is remotely located from the first processor. The first and second processors are operably coupled with a bus configured to transmit digital signals therebetween. One or more input devices may be coupled with the first processor to indicate the status of an operational parameter of the door. Operational parameters are transmitted to the second processor, which controls a drive operably coupled with the door to control the position thereof in response to such operational parameters. The second processor is configured such that, upon breakdown of communication between the first and second processors, the second processor causes the door to enter into a predetermined status.

Abstract: The pulper device for waste paper material comprises: a container (9) for collecting said waste, having an inlet opening (11) for said waste, at least one pressurized water nozzle (13; 15) which produces a jet of water which intercepts the waste which falls into said container, and a first pump (27) which removes the water and waste from said container.

Abstract: An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A rotor and stator assembly is positioned within the housing radially outside of the distribution member. A toothed ring is interposed between the distribution rotor and the rotor and stator assembly. The toothed ring and the rotor and stator assembly define a gas ring therebetween. A reactant gas supply is fluidly coupled with the gas ring. A method for loading fibers in a fiber suspension with calcium carbonate can be practiced with the apparatus, The method controls various factors and provides low shear treatment of the suspension to promote selective crystal formation.

Abstract: A pre-folded and pre-printed paper napkin capable of being stacked with other such napkins for package and storage, the napkin being pre-printed such that the pre-folded napkin resembles recognisable 3-dimensional object.

Abstract: The invention provides a process for the production of a coated and pressed cellulosic fibrous flat substrate of loose, optionally bonded fibers, by application of (M) an aqueous coating composition, containing a binder (B), a white pigment (W) and a dispersant (D), wherein at least a part of the white pigment (W) is (A) a particulate ammonium polyphosphate of crystalline form II of average particle size<40 &mgr;m and with a water solubility<10 g/l at 25° C., to the face of the substrate and subjecting to pressure, in particular for the production of coated and pressed substrates of outstanding surface properties, particularly suitable for graphic processing, and of outstanding non-flammability properties, suitable coating compositions, their production, the coated and pressed substrates and their use as substrates for graphic processes, especially printing.

Abstract: A multi-tier fabric loading harness for installing a fabric onto a papermaking machine. The loading harness has a first portion with a supporting rigid member that attaches to an end of the fabric in the cross-machine direction and a plurality of apertures spaced across its width. The first tier is formed by a rope sequentially laced through the apertures to form self-aligning loops. A second rope is sequentially laced through the loops of the first tier to form self-aligning loops for a second tier. A pull ring gathers the loops of the second tier and is used to pull the fabric onto the papermaking machine.

Abstract: A stratified press fabric for the press section of a paper machine includes a base fabric in the form of an endless loop. A first staple fiber batt material is attached to the outer side of the base fabric by needling. A fine fabric covers the first staple fiber batt material, and a second staple fiber batt material is attached to the fine fabric by needling. The fibers making up the second staple fiber material are finer, that is, of smaller diameter or denier, than the fibers making up the first staple fiber material. The fine fabric prevents the coarser fibers of the first staple fiber batt material from being needled therethrough to mix with the finer fibers of the second fiber batt material.

Abstract: Nip press belt of a wet press or a calender with elongated nip, in particular for a paper, cardboard or tissue machine, with a flexible elastomer layer that is impermeable to liquids and with a textile reinforcing layer, wherein the elastomer layer comprises soft rubber with a hardness in the range between 5 and 100 P+J.

Abstract: A process for producing a sputtering target from a silicon-based alloy with an aluminum content of 5-50 wt. %. The target material is produced by a casting technique in which the material is melted and vacuum-cast, such that the casting is carried out in a hollow cylindrical casting mold.

Abstract: A ceramic foam having pores in the range of 20 to 800 micron and 10 to 30% of theoretical density is placed in a preheated mould and molten metal or plastics is drawn in to form a biocomposite structure.

Abstract: A disk rotor is produced using pre-forms. A manufacturing device 10 includes lower mold 11 and upper mold 12. The lower mold 11 includes support block 13, main body part of the lower mold 14, inclined pins 15, core elements 16 and slider 17. In securing and supporting pre-forms 4A, 5A, a cylinder 18 is actuated to cause upward movement of the support block 13 and the main body part of the lower mold 14, during which movement, core elements 16 and slider 17 are slid relatively outwards along inclined pins 15. In this state, the pre-forms 4A, 5A are guided to preset sites. The support block 13 and the main body part of the lower mold 14 are then moved downwards, during which movement, core elements 16 and slider 17 are slid relatively inwards along the inclined pins 15. In this state, the pre-forms 4A, 5A are supported and secured stably to define a cavity.

Abstract: A metal alloy is heated to a molten state, and a grain refiner may be added. The refined molten alloy is poured into a large diameter shot sleeve of a vertical die cast press and on top of a shot piston. The shot sleeve is transferred to an injection station while the molten alloy cools to a semi-solid slurry with approximately fifty percent solids and a globular, generally non-dendritic microstructure. A center portion of the slurry is injected upwardly by the piston through a gate opening into a die cavity while an outer more solid portion of the slurry is entrapped in an annular recess. After the slurry solidifies, the shot piston retracts, and the shot sleeve is transferred to a position where the residual biscuit is removed. A second shot sleeve filled with the molten alloy is transferred to the metal transfer station, and the process is repeated.

Abstract: A core for a shell die used in casting a turbine bucket includes an elongated body shaped to create internal cooling passages in the bucket, the elongated body formed with at least one core support pin extending transversely of the elongated body and adapted to fix the core inside the shell die, at least one core support pin having an elliptical shape in cross-section. The invention also relates to a cast turbine bucket with at least one exit hole formed therein during casting. The exit hole and a plug for closing the hole are elliptical in cross-section.

Abstract: A condenser for use in a vehicle air conditioning system includes a combined fluid connection block and mounting tab. The fluid connection block connects to a fluid line leading to other components within the refrigeration system. The bracket further has a tab mounted adjacent one side which receives mounting elements for mounting the condenser to a radiator or other frame element.

Abstract: A unit ventilator is described in which air treating apparatus is housed within a chassis which is readily removable from a fixedly installed cabinet. The air treating apparatus includes an evaporator, a compressor, a condenser and an air flow system for separately handling air for ventilating and air for condenser cooling and in which the system for condenser cooling provides for evaporative cooling of the refrigerant. The invention contemplates modular system arrangements in which the use of plural chassis in an installation enables the production of a wide range of ventilating capacity from minimal change in alternative chassis modules.

Abstract: A cooler for electronic devices provides cool air to the inlet sides of the heat sink by using a radial blower with blades located around air outlets of the heat sink. This blower is driven by a brushless DC electric motor. The motor has an opening in the center allowing for the transfer of incoming air to the center of the heat sink. Th rotors outer circumferential arrayed poles are rigidly secured to the frame of the radial blower. The stator of the motor is rigidly secured to the heat sink and has an opening in its center. The stator comprises circumferential arrayed coils on circuit board material. When the current flows through the stator coils, the coils acquire a magnetic polarity. The poles of the rotor and stator coils attract and repel depending on the polarities. The cool air comes simultaneously from opposite sides of the heat sink. For this reason the heat sink has a divider located approximately in the middle of the heat sink fins.

Abstract: A heat exchanger including inlet and outlet header portions for a refrigerant (such as CO2), serpentine multiport tubes each with a plurality of aligned tube runs, and at least three plate assembly fluid paths. Each plate assembly fluid path includes a pair of spaced plates secured together at their edges to define an enclosed space with a fluid inlet and fluid outlet on opposite sides of the space. One plate of one fluid path is positioned against first aligned tube runs, one plate of a second of the fluid paths is positioned against second aligned tube runs, and a third fluid path is positioned between the first and second aligned tube runs. The plates may be substantially identical to one another.

Abstract: A fin-tube block type heat exchanger in which extruded tubes are alternatingly arranged with corrugated fins, the fins being shorter in overall length than the tubes and having elongated bars at their ends serving as spacer bars between the tubes. The side walls of the spacer bar preferably taper towards each other such that the thickness of the spacer bar at the inner wall is less than the thickness of the spacer bar at the outer wall. The side walls include one or more recesses or grooves extending lengthwise with the spacer bar into which low temperature melting alloy is captively inserted. During brazing, the alloy melts and is drawn by capillary action into the space created between the tapered side walls of the spacer bar and the facing surfaces of the adjacent tubes so that a complete joint is formed between the spacer bar and the adjacent tubes.

Abstract: A heat dissipating member which is disposed between a heat generating electronic component which when operated generates heat and reaches a temperature higher than room temperature and a heat dissipating component is characterized in that the heat dissipating member is non-fluid in a room temperature state prior to operation of the electronic component and acquires a low viscosity, softens or melts under heat generation during operation of the electronic component to fluidize at least a surface thereof so as to fill between the electronic component and the heat dissipating component without leaving any substantial voids, and the heat dissipating member is formed of a composition comprising a silicone resin and a heat conductive filler.

Abstract: A dual evaporator air conditioning system and method for use therewith to cool air in front and rear portions of a cabin of a vehicle. The dual evaporator air conditioning system includes primary and auxiliary HVAC units to cool the air in the front and rear portions of the cabin, respectively. The dual evaporator air conditioning system also includes a control system having cooling and non-cooling modes for each of the HVAC units. The control system automatically activates a heating element near the auxiliary evaporator in response to the auxiliary HVAC unit being in the non-cooling mode while the primary HVAC unit is in the cooling mode. The heating element heats the refrigerant in the auxiliary evaporator to prevent accumulation of liquid refrigerant and lubricating oil in the auxiliary evaporator when the auxiliary HVAC unit is in the non-cooling mode while the primary HVAC unit is in the cooling mode.

Abstract: An evaporative heat exchanger of a medium condenser of a air condition system with less cooling fins even without cooling fins which a novel coil assembly composed of a plurality of streamline cross sectional tubes is used to instead of conventional round tubes for providing an ultra high evaporative efficiency therefore, and having the further improvement of easy to clean and convenient for maintenance.

Abstract: A well testing system and well testing method is described which can be operated as a closed system with no production of hydrocarbons outside the well or gas can be separated and flared at surface giving minimal environmental impact with the liquid hydrocarbon being re-injected. This is achieved by providing a string with at least two well conduits which may be arranged in a concentric or non-concentric parallel configuration. One conduit is used to produce formation fluids to surface or to produce/store unrepresentative initial flow products and the other conduit is used to store formation fluid. The storage conduit can be filled from the top (surface) or the bottom of the well. In a preferred arrangement a valve is provided between the storage conduit and the well annulus for well pressure control, and a shut-in or test valve, which is controllable from surface, is disposed in the non-storage production conduit.

Abstract: Disclosed is a method of determining the extent of recovery of materials injected into oil wells or subsurface formations. The method includes injection of one or more tracers into an oil well or into a formation. Included in the method are the steps of introducing a material of interest into the oil well or into the subsurface formation associated with the bore of the oil well; introducing a tracer into the oil well or into the subsurface formation associated with the bore of the oil well; recovering from the oil well a production fluid, analyzing the production fluid for a concentration of the chemical tracer present in the production fluid; and calculating the amount of material of interest recovered from the oil well using the concentration of the chemical tracer present in the production fluid as a basis for the calculation.

Abstract: The current invention provides a method for enhancing the formation stability of water sensitive, reactive formations penetrated by a wellbore. The method of the current invention provides an accurate evaluation of the impact of cementing fluids on water sensitive, reactive formations and provides the ability to accurately formulate cementing fluids in order to enhance the stability of such formations. When necessary, the method of the current invention additionally provides for the application of an osmotic semi-permeable membrane to the face of the formation.

Abstract: A method for the treatment of a subterranean formation penetrated by a well in which, first and second flow paths are established from the wellhead into the vicinity of the formation. A plugging fluid comprising a suspension of a particulate plugging agent in a carrier liquid is circulated into the first flow path and into contact with the wall of the well within the subterranean formation. The carrier liquid is separated from the particulate plugging agent by circulating the carrier liquid through a set of openings leading to the second flow path, which are dimensioned to allow the passage of the carrier liquid while retaining the particulate plugging agent in contact with the set of openings. The circulation of the plugging fluid continues until the particulate plugging agent accumulates to form a bridge packing within the well.

Abstract: Methods are presented to induce a screenout during a subterranean formation fracturing or combined fracturing and gravel packing treatment having a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting proppant slurry, and causing hydrolysis and dissolution of the solid base-soluble material by adding base so that leak-off increases, the concentration of proppant in the fracture increases, and the proppant screens out. A method of gravel packing with a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting gravel, and causing hydrolysis and dissolution of the solid base-soluble material by adding base. Methods of slowing or accelerating the hydrolysis and dissolution are given, and addition of bridging-promoting materials is included.

Abstract: The invention concerns an aqueous viscoelastic fluid for use in the recovery of hydrocarbons. According to the invention, the aqueous viscoelastic fluid comprises a monomer, a dimer or an oligomer of a viscoelastic surfactant able to form a viscoelastic gel under downhole conditions, said surfactant comprising a hydrophobic tail and a hydrophilic head, and being of the following formulae: R—X—Y—Z where R is the hydrophobic tail of the surfactant, Z is the hydrophilic head of the surfactant, said hydrophilic head being charged, X is a stabilising group and Y chain is a linear, saturated or unsaturated, hydrocarbon chain of 1, 2 or 3 carbon atoms or a branched, saturated or unsaturated hydrocarbon chain wherein the main chain is of 1, 2 or 3 carbon atoms, possibly incorporating an aromatic ring.

Abstract: A downhole tool (20) is provided for use within a casing (10). The tool includes a collector tool that comprises: a cylindrical body (21) having an external diameter smaller than the casing diameter so as to form an annular gap (5) between the body and the casing; a first downhole fluid passage (30) provided in the body and having an upper inlet (32) and a lower outlet (34); at least one secondary fluid passage (40) extending between the first downhole fluid passage and the annular gap; a filter means (36) arranged between said at least one secondary fluid passage and said outlet; and a first sleeve member (60) provided on the body and adapted to move between a first position in which said at least one secondary fluid passage is closed and a second position in which said at least one secondary fluid passage is open.