Abstract: A method of securely holding any style slipcover, fabric, or other covering, in place to furniture using a specially designed, non-permanent, re-usable, heat-activated, double-sided adhesive tape placed on the furniture itself under the slipcover before slipcover installation, whereby upon subsequent heating, the slipcover will not move from its desired position after or during normal use. The slipcover can still be removed from the furniture without the need to apply additional heat to the underlying tape, and the slipcover can be re-installed and re-heated to yield secure attachment to the furniture multiple times. The tape can be removed from the furniture and discarded but will not leave a residue on the furniture.

Abstract: A vacuum pump exhausts gas within the processing chamber from a lower portion of a sample so as to reduce pressure within a processing chamber. The vacuum pump includes a rotary vane and a fixed vane which are arranged within a case of the vacuum pump and have a plurality of impeller blades in a coaxial manner; an exhausting port for exhausting the gas exhausted from the rotary vane outside the case; and a conducting port arranged along a lower direction of the rotary vane, into which inert gas is conducted, which are provided on a circumference thereof. An MFC (flow rate adjusting device) is arranged between a gas storage unit of the inert gas and the conducting port, for adjusting an amount of the inert gas.

Abstract: Disclosed are a method and a system for processing a semiconductor structure of the type including a substrate, a dielectric layer, and a TaN—Ta liner on the dielectric layer. The method comprises the step of using XeF2 to remove at least a portion of the TaN—Ta liner completely to the dielectric layer. In the preferred embodiments, the present invention uses XeF2 selective gas phase etching as alternatives to Ta—TaN Chemical Mechanical Polishing (CMP) as a basic “liner removal process” and as a “selective cap plating base removal process.” In this first use, XeF2 is used to remove the metal liner, TaN—Ta, after copper CMP. In the second use, the XeF2 etch is used to selectively remove a plating base (TaN—Ta) that was used to form a metal cap layer over the copper conductor.

Abstract: A probe apparatus configured to measure a set of electrical characteristics in a plasma processing chamber, the plasma processing chamber including a set of plasma chamber surfaces configured to be exposed to a plasma is disclosed. Tile probe apparatus includes a collection disk structure configured to be exposed to the plasma, whereby the collection disk stricture is coplanar with at least one of the set of plasma chamber surfaces. The probe apparatus also includes a conductive path configured to transmit the set of electrical characteristics from the collection disk structure to a set of transducers, wherein the set of electrical characteristics is generated by an ion flux of the plasma. The probe apparatus further includes an insulation barrier configured to substantially electrically separate the collection disk and the conductive path from the set of plasma chamber surfaces.

Abstract: A substrate holding apparatus has a substrate holder body with a substrate holding side facing a polishing surface and holding a substrate on the substrate holding side and a retainer ring fixedly secured to the substrate holder body. The retainer ring is arranged to surround an outer periphery of the substrate held by the substrate holder body so that the retainer ring engages with the polishing surface radially outside the substrate as the polishing of the substrate is effected. The substrate holder body is provided with a membrane having inside and outside surfaces. The inside surface cooperates with a surface of the substrate holder body to define a fluid pressure chamber to which a fluid pressure is applied. The outer surface engages with the substrate held by the substrate holder body.

Abstract: A phosphoric acid solution stored in an immersion bath is circulated through a circulation line. Substrates on each of which a silicon oxide film and a silicon nitride film are formed are immersed into the phosphoric acid solution in the immersion bath, to proceed a process of selectively etching the silicon nitride film. A recovery line draws part of the phosphoric acid solution circulating through the circulation line, and collects and discharges siloxane with a recovery device to recover the phosphoric acid solution. A control part controls a flow rate regulating valve on the basis of measurement results of an outlet concentration meter and an inlet concentration meter, to regulate the flow rate of the phosphoric acid solution to be circulated to the immersion bath so that the concentration of siloxane contained in the phosphoric acid solution stored in the immersion bath should be constant.

Abstract: An etch apparatus. The etch apparatus includes a tank coupled to a recirculating path that includes a dissolver. The dissolver includes a porous carbon matrix filter coated with silicon nitride. An etchant from the tank circulates through the recirculating path and performs a selective etching of a structure in the tank in contact with the etchant. The structure includes silicon nitride on a pad layer that includes silicon dioxide. The selective etching is characterized by the silicon nitride on the pad layer being selectively etched by the etchant relative to an etching by the etchant of the silicon dioxide. The etch apparatus further includes: means for dissolving the silicon nitride coated on the filter into the etchant at a controlled dissolution rate sufficient to cause the selective etching; and means for coating the silicon nitride onto the filter to facilitate the selective etching.

Abstract: A device for liquid treatment of a defined area of a wafer-shaped article, especially of a wafer, near the edge, in which the liquid is applied to a first surface, flows essentially radially to the outside to the peripheral-side edge of the wafer-shaped article and around this edge onto the second surface, the liquid wetting a defined section near the edge on the second surface and thereupon being removed from the wafer-shaped article.

Abstract: Some embodiments discussed relate to an apparatus for etching a semiconductor wafer and method for fabricating it, comprising a plurality of electrodes coupled to a power supply for generating a plasma stream and at least one electromagnetic radiation source and a wafer support to position a wafer for etching using the plasma stream and the wafer support having a plurality of apertures to allow passage of electromagnetic radiation from an electromagnetic radiation source through the wafer support to impinge on a surface of the wafer during etching.

Abstract: There is provided a semiconductor etching apparatus which removes particles remaining on the upper surface of an electro static chuck (ESC) during an etching process, thereby preventing a chucking force from decreasing and minimizing a leak of helium. To prevent a failure of the etching process due to a wafer chucking failure, by preventing polymers from falling down on the upper part of the ESC when a wafer is dechucked or transferred, the semiconductor etching apparatus comprises: an ESC selectively holding a wafer to be entered and positioned inside a chamber, and including a lower electrode part to which RF power is applied; parts positioned at a stepped portion of the ESC and respectively surrounding a side of the ESC; and a gas flow blocking part blocking a gas flow in a vacuum path formed between the ESC and the parts.

Abstract: A focus ring of a plasma processing apparatus for performing a plasma processing on a target substrate to be processed is disposed on the mounting table to surround the target substrate. The focus ring includes a first ring-shaped member made of a conductive material and having a stepped portion at an inner peripheral portion thereof, the stepped portion being positioned lower than a bottom surface of the target substrate mounted on the mounting table and extended below a peripheral portion of the target substrate. The focus ring further includes a second ring-shaped member made of an insulating material and disposed under the first ring-shaped member to be interposed between the first ring-shaped member and the mounting table.

Abstract: In a state that a reference plane of a cutter holder, to which a cutter blade is attached, is brought into contact with a surface of a base of a supporting adhesive tape, the cutter blade cuts the supporting adhesive tape while the reference plane of the cutter holder follows the surface of the base. Herein, a cutting edge of the cutter blade passes by a joining interface between the supporting adhesive tape and a ring frame without penetrating through an adhesive layer of the supporting adhesive tape.

Abstract: A welding machine for joining overlapping webs of sealing material, with a powered chassis supported by rolls, with a heating system for local heating of the webs of sealing material that is mounted laterally to the chassis (4) and can be placed between the webs of sealing material in edge regions, with at least a first pressure roll installed on the chassis for pressing together the webs of sealing material to be joined by means of heat, where a second pressure roll serving as a replacement pressure roll is placed in the chassis, whose weight rests on the drive shaft and which can be exchanged without tools for the first pressure roll that is coupled to the drive shaft of the welding machine and presses together the bitumen webs to be joined. In addition, the pressure roll (3) may have at least one contact surface made of hard metallic material; and a stripper element is provided whose free end contacts the contact surface or is in close proximity to the same.

Abstract: A hot air welding nozzle for a hot air welding device for welding overlapping webs of sealing material, in particular webs of bitumen. The hot air welding nozzle includes a connection for a hot air supply, a top and a bottom heat plate forming an air space, and at least one rear outlet between the top and bottom heat plate on a facing side that is oriented in a direction opposite to the moving direction of the hot air welding device, with at least one front outlet relative to the moving direction of the hot air welding device, and with air guides that extend beyond the facing sides of the heat plates, at least on the inner side, i.e. the side facing away from the connection for a hot air supply. With the hot air welding nozzle designed as proposed by the invention, and/or a hot air welding device of appropriate design, it is now possible to weld webs of sealing material, in particular webs of sealing material made of bitumen, considerably faster due to the long pre-heating zone.

Abstract: A drywall tape dispensing system includes an open-ended container that retains drywall compound and a drywall tape dispenser that extends downwardly into the drywall compound. The drywall tape dispenser includes a frame having a feed end, a dispensing end, and a support portion. The support portion rests within the drywall compound. A roll of drywall tape is retained at the feed end and the leading edge of the tape extends beneath a support guide on a support portion, and, from there, extends to a metering guide near the dispensing end. As the leading edge of the tape is pulled, additional length of tape is pulled down from the drywall compound under the support guide and then is ultimately dispensed through the metering guide at the dispensing end.

Abstract: An installation tool for mounting a tire to a wheel, the tire and wheel defining a central axis, the tire having opposing annular sides and two circumferential beads that define an opening through the opposing annular sides and the wheel having shoulders for receiving the circumferential bead, the installation tool comprising a shoe having an upper axial side, a lower axial side and an outer radial side, wherein the shoe includes a beveled transition zone that extends across at least a part of at least one of the upper axial side and the outer radial side, the beveled transition zone defining a bead drawing surface that mounts the bead of the tire to the shoulder of the wheel when rotatable movement is introduced between the tire and the shoe.

Abstract: A water desalinator includes a plurality of spaced tubes for establishing wet channels with fins extending between adjacent tubes for establishing a plurality of dry channels. A blower blows air through the dry channels, and air is bled from the dry airstreams to form wet airstreams flowing through the wet channels. A saline water tank is in fluid communication with the tubes to introduce saline water into the wet channels. Heat is extracted from the dry airstreams and transferred to the saline water, causing it to evaporate into the wet airstreams. By rejecting the heat out of the wet airstream in a condensation chamber, fresh water condenses out of the wet airstream and deposits into a water tank.

Abstract: A screen device in which a screen is provided in a contractable and expandable manner between a pair of screen installation frames, at least one of which is movable in a sliding manner, and the screen can be opened and closed by pulling it sideways, and which has upper guide frames for guiding the screen installation frames while covering their upper end sections. The screen installation frames have, at their upper end sections, fall-down prevention guide sections. The upper guide frames have, in their insides, guide rail projections which prevent, by holding the fall-down prevention guide sections, the upper end sections of the screen installation frames from coming out of the upper guide frames.

Abstract: A Venetian blind and a control mechanism therefore, comprising a plurality of slats suspended from a headrail by lift cords, the control mechanism comprising a hollow rod articulated to the headrail and accommodating the lift cords extending to a elevation assembly manipulable by an actuator slidingly received over the rod. Upward displacing of the actuator entails lowering of the slats and downwards displacing of the actuator entails raising of the slats, and a friction mechanism for arresting the slats at any respective elevation.

Abstract: A chip pretreatment process which comprises conveying the feed material through a compression screw device having an atmosphere of saturated steam at a pressure above about 5 psig, decompressing and discharging the compressed material from the screw device into a decompression region, feeding the decompressed material from the decompression region into a fiberizing device, such as a low intensity disc refiner, where at least about 30 percent of the fiber bundles and fibers are axially separated, without substantial fibrillation of the fibers. In a more specific form the invention is directed to a process for producing mechanical pulp, including the steps of fiberizing wood chip feed material in a low intensity disc refiner until at least about 30 percent of the fibers are axially separated with less than about 5 percent fibrillation, and subsequently refining the fiberized material in a high intensity disc refiner until at least about 90 percent of the fibers are fibrillated.

Abstract: A process for bleaching mechanical wood pulp is provided comprising subjecting the wood pulp to at least one bleaching stage with one or more bleaching agents in the presence of one or more optical brightening agent, wherein the bleaching agents are selected from the group consisting of oxidative bleaching agents other than chlorine based bleaching agents such as chlorine dioxide, elemental chlorine or a combination thereof, reductive bleaching agents or any combination of two or more thereof.

Abstract: Methods to control lipophilic extractives in Acacia pulp and fibers are described. One method involves contacting the pulp or fibers with a composition containing at least one enzyme, such as at least one esterase or lipase or both, for a sufficient time and in a sufficient amount to control the lipophilic extractives present in the pulp or fibers.

Abstract: According to the present invention, a process is provided for making paper or board comprising forming a cellulosic suspension that may or may not comprise a filler, flocculating the cellulosic suspension, draining the cellulosic suspension on a screen to form a sheet, wherein the cellulosic suspension is flocculated using a flocculation system comprising the sequential or simultaneous addition of a siliceous material and an organic, cationic or anionic, dispersion micropolymer in a salt solution.

Abstract: This invention relates to a process for preparing polyamine-epihalohydrin resins having reduced levels of residuals. The process comprises (a) charging a membrane separation apparatus with an aqueous composition comprising at least one polyamine-epihalohydrin resin, and (b) separating the aqueous composition into a permeate and a retentate by passing the aqueous composition through the membrane of the membrane separation apparatus. The retentate comprises at least one polyamine-epihalohydrin resin having lower levels of residuals on an equal active component basis than the aqueous composition of (a). The permeate comprises residuals removed from the aqueous composition of (a) and less than 5% by weight of the active component of said at least one polyamine-epihalohydrin resin. The polyamine-epihalohydrin resins having reduced levels of residuals can be used to make wet strength agents, dry strength agents, creping adhesives for paper products, curing agents for wood product adhesives, and other products.

Abstract: An embossing system for embossing at least a portion of a web is provided comprising a first embossing roll having male embossing elements, a second embossing roll having male embossing elements, wherein the first and second embossing rolls define a first nip for receiving the web, and a third embossing roll having male embossing elements, wherein the second and third embossing rolls define a second nip for receiving the web, and wherein at least a substantial portion of the embossing elements of at least one of the first, second, and third embossing rolls are substantially oriented in the cross-machine direction.

Abstract: A pulp pre-processor for the papermaking industry uses pulp fiber analyzers to determine the distribution of fiber parameters, such as length, curl or coarseness from a feed source, such as recycled pulp, and mixes metered portions of pulp from augmenting pulp sources on an as-needed basis to provide a uniform distribution of a particular fiber parameter while maximizing use of recycled pulp.

Abstract: A web making machine is monitored to identify at least one cross-machine direction (CD) actuator that is developing local mapping problems. The identified CD actuator and a segment of surrounding actuators are probed to determine a performance curve for the actuator. The center of an insensitivity region of the performance curve is selected as an optimal mapping alignment setting for the identified actuator with the setting for the actuator being updated. Global smoothing may also be accomplished by probing a global smoothness factor to generate a corresponding performance curve that is then similarly used to select an optimal value for the smoothness factor.

Abstract: A mold assembly for footwear components is cast as a collection of mold elements having integral attachment members. Attachment members of separate mold elements may then be joined by, e.g., welding. Handles may also be formed into one or more mold elements as part of the casting process. Outsole negatives are juxtaposed with templates for attachment tabs and/or handles and used to form ceramic casting molds. The ceramic casting molds can then be used to cast individual mold elements.

Abstract: A vehicle body mounting structure for an exhaust system heat exchanger is provided that enables good protection of an exhaust system heat exchanger disposed below a vehicle body floor. In the vehicle exhaust system mounting structure 10 there is an exhaust system heat exchanger 14, carrying out heat exchange between exhaust gas and engine cooling water, disposed at the bottom side of a floor tunnel 70 that is formed to a front floor panel 68. The lowermost portion of the exhaust system heat exchanger 14 in the vehicle up-down direction is positioned in the vehicle up-down direction above the lowermost portion of the body cross-member 80 of a vehicle body frame and an engine rear mount support member 90.

Abstract: A pressure tank includes a liner separated into a cap and a main body. A shell covers the outer surface of the liner. The shell is formed of a fiber reinforced plastic. A heat exchanger is arranged in the liner. A header is connected to the heat exchanger. The heat exchanger is supported on the liner by fastening the header to the cap or the main body.

Abstract: A heat sink comprises a base panel having a top surface and a bottom surface. A plurality of pin fins extend outwardly from the top surface and each fin has a cross-sectional configuration with two radiuses, a first radius and a second radius, wherein the first radius is larger than the second radius. The first and second radiuses are tangentially interconnected by intermediate portions, giving the pin fin cross-sectional configuration a raindrop shape, thereby generating low pressure drop across the heat sink by minimizing the drag force effects and maintaining large exposed surface area available for heat transfer.

Abstract: The present invention is a two-phase liquid cooling system that cools a plurality of electronic components connected in parallel. A pump delivers a cooling fluid, as a liquid, to a supply manifold wherein it splits into distinct branch lines. Preferably, the branch lines feed coolant to individual spray modules. The liquid coolant removes heat from the components to be cooled through evaporation. The resulting liquid and vapor mixture exits the spray modules via return branches. Each individual return branch feeds into a return manifold wherein the manifold is sized sufficiently for the separation of liquid and vapor under the influences of gravity. In addition, a heat exchanger is located within the return manifold and provides for the condensation of vapor. The heat exchanger may also provide liquid subcooling.

Abstract: In one embodiment, an apparatus includes a phase change material, a plurality of particles intermixed with the phase change material, and a conductive structure encapsulating the phase change material. The conductive structure includes a cavity including a cone shape. In one embodiment, a method includes forming a conductive structure having a cavity, injecting a phase change material into the cavity, injecting a plurality of spheres into the cavity, and sealing the cavity.

Abstract: A flexible metal heat pipe coated or covered with a layer of plastic material to provide the heat pipe the flexibility required in a process to bend the heat pipe without damaging the heat pipe due to over-concentrated stress at a particular section of the heat pipe.

Abstract: A fluid recovery system is adapted for use with a cooling system, such as for use in electronic applications. In one example, an enclosure is configured to contain fluid in both gas and liquid states, wherein the fluid is adapted for use in spray cooling electronic components. A plurality of pick-up ports is defined within the enclosure. In one implementation of the cooling system, an orifice size used in each of the pick-up ports results in withdrawal of fluid from submerged and non-submerged pick-up ports.

Abstract: The present invention relates to a plate for a heat exchanger, which has beads of refrigerant distributing sections formed asymmetrically and streamlined beads arranged in the same number on flow channels in the form of a zigzag so that refrigerant flowing inside a tank is distributed and introduced to tubes uniformly, thereby increasing a heat radiation amount and enhancing a heat exchange efficiency by forming uniform flow distribution and reducing a pressure drop of refrigerant, and miniaturizing the heat exchanger into a compact size.

Abstract: A normal-flow heat exchanger (NFHX) (120) utilizing a working fluid and having a high heat flux transfer capacity. The NFHX comprises a core (130) having a heat-transfer surface (128), a length and a width. An inlet plenum (124) is located at one end of the length, and an outlet plenum (126) is located at the opposite end of the length. A plurality of inlet manifolds (140) extend the length of the core, and a plurality of outlet manifolds (142) extend the length of the core and are located alternatingly with the inlet manifolds across the width of the core. A plurality of interconnecting channels (144) each fluidly communicate with a corresponding inlet manifold and the two outlet manifolds located immediately adjacent that inlet manifold. A heat exchanger fin (154) is generally located between each pair of immediately adjacent interconnecting channels. In one embodiment, the core comprises a plurality of plate pairs (132) each comprising a heat exchanger plate (136) and a spacer plate (138).

Abstract: The invention relates to a stacked-plate heat exchanger for cooling charge air, having at least one first flow duct (21) for at least a first medium LL to flow through, and at least a second flow duct (22) for at least a second medium (KM) to flow through in order to cool the first medium (LL), wherein the at least one first flow duct (21) and the at least one second flow duct (22) are formed between adjacent plates (8, 9), and at least one plate (8, 9) has at least a first opening (12) for the first medium (LL) to flow through and at least two second openings (13) for the second medium (KM) to flow through into the at least one second flow duct (22), the at least one first opening (12) being arranged at least in certain sections between the two second openings (13), wherein the first opening (12) is at a smaller distance, at least in certain sections, from a central section (MA) of the stacked-plate heat exchanger (1) than one of the second openings (13).

Abstract: A heat exchanger assembly comprising a heat exchanger with tank having a neck, and, in various embodiments, an assembly further comprising a hose to form a hose-neck connection is provided. A heat exchanger assembly comprising a hose-neck connection, having the advantage of providing for a connection resistant to temperature and pressure conditions of heat exchangers is provided. By providing for particular rib patterns on the neck, an optimized rib pattern can be found based on the environmental conditions and use of the heat exchanger assembly.

Abstract: A manifold kit for a solar heat exchanger of the type having a mat of tubes connected to inlet and outlet manifolds. Each manifold has at least one, preferably 5, groups of spigots tubes with three spigots in each group. Each group of spigots comprise a base fitted to the manifold a planar region on said base and a plurality of tubular spigots projecting from said planar region. A connector is adapted to receive a group of 3 heat exchanger tubes in one end and adapted at the other end to connect to a group of 3 spigot tubes on the manifold. This arrangement avoids the need for special tools during installation and the group of heat exchanger tubes can be easily fitted with the connectors and then snapped onto the manifold.

Abstract: A heat dissipation device includes a heat conducting core having a heat receiver and a column extending from the heat receiver. A first fin unit includes a plurality of first fins radially extending from the core. The first fins curve along an anticlockwise direction. A plurality of first passages is defined between the first fins. A second fin unit includes a plurality of second fins radially extending from the core. The second fins curve along a clockwise direction. A plurality of second passages is defined between the second fins and communicating with the first passages of the first fin unit. A fan is positioned on the second fin unit for providing forced airflow to the second passages of the second fin unit and then the first passages of the first fin unit. The fan rotates anticlockwise.

Abstract: A tape-like heat sink is disclosed. The heat sink is characterized in that a base section which is flexural is mounted to the heat sink, and the base is matrix distribution of protrusions for heat dissipation, and each of the protrusions is provided with a thin layer, thereby the thin film is conveniently flexural for heat dissipation.

Abstract: A gravel pack apparatus for use in a wellbore includes a screen assembly to filter particulates, at least one shunt conduit to carry gravel slurry, and a swellable element around a portion of the at least one shunt conduit. The swellable element swells in response to an input stimulus and expands radially outwardly to seal against the wellbore.

Abstract: Box-end rotary sucker rod shear couplings including a substantially cylindrical housing having an interior surface defining a passage from an upper end to a lower end along a longitudinal axis and an exterior surface. The shear coupling also includes a set of threads around an inner circumference of the upper end for receiving a rotary sucker rod coupled directly into the upper end of the passage without an intervening adaptor; a set of threads around an inner circumference of the lower end for receiving a pump pin coupled directly into the lower end of the passage without an intervening adaptor; and one or more circumferential grooves machined into the cylindrical housing between the threads for causing rod shear failure at a predetermined axial load. In some embodiments, the shear couplings are conventional box-end sucker rod couplings. Also disclosed are rotary sucker rod assemblies including such rod shear couplings.

Abstract: A bridge plug comprises an axially compressible cylinder having plural expansion sleeves. A mandrel extends axially through the cylinder, and has a threaded portion engaged with the cylinder, such that rotation of the mandrel causes compression of the cylinder. A setting tool comprises a housing containing a motor and a drive shaft driven by the motor. The setting tool is configured to be removably coupled to a bridge plug with the drive shaft drivingly coupled to the bridge plug's mandrel, such that operation of the setting tool motor causes compression of the bridge plug. The setting tool is used to lower a bridge plug within a well casing, and to compress the bridge plug causing, outward protrusion of sealing members of the bridge plug to set the bridge plug in place. Cement may be applied above the set bridge plug to form an easily drillable seal.

Abstract: According to one embodiment, a system for accessing a subterranean zone from the surface includes a well bore extending from the surface to the subterranean zone, and a well bore pattern connected to the junction and operable to drain fluid from a region of the subterranean zone to the junction.

Abstract: A formation fluid sampling tool is provided with reactants which are carried downhole and which are combined in order to generate heat energy which is applied to the formation adjacent the borehole. By applying heat energy to the formation, the formation fluids are heated, thereby increasing mobility, and fluid sampling is expedited.

Abstract: A method for inserting a tool into a wellbore includes uncoiling a coiled tubing into the wellbore to a selected depth therein. When the tubing is at the selected depth, the tubing is uncoupled. A tool is inserted into the interior of the tubing. The tubing is reconnected, and the tool is moved along the interior of the tubing.

Abstract: A packing unit for a blowout preventer includes an elastomeric, annular body configured to be disposed about a longitudinal axis of the blowout preventer and configured to be displaced radially inward towards the longitudinal axis upon actuation of the blowout preventer. The elastomeric, annular body includes a first section having a first set of material properties and a second section having a second set of material properties. The packing unit includes a plurality of rigid inserts distributed at equal radial distances from each other within the elastomeric annular body and about the longitudinal axis of the blowout preventer.

Abstract: A method for recovery of oil in toe-to-heal in-situ combustion processes from underground petroleum formations, having at least one injection well for injecting oxidizing gas into the underground formation and one production well having a substantially horizontal leg and a substantially vertical production well connected thereto wherein the substantially horizontal leg extends towed the injection well, the horizontal leg having a heel portion in the vicinity of its connection to the vertical production well and a toe portion at the opposite end of the horizontal leg proximate the injection well. The improvement comprises either i) providing tubing inside the production well and injecting steam or water into the horizontal leg portion via the tubing so that steam/water is conveyed to the toe portion, ii) injecting steam/water into the injection well in additional to oxidizing gas, or iii) providing and carrying out both of steps i) and ii).