A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.

A saw apparatus for sawing paving slabs has a frame mounted on a ground contacting propulsion member such that the frame may move above a slab to be cut without touching the slab. A first saw support assembly disposes a blade of a saw in cutting engagement with the slab for a transverse cut. A second saw support assembly disposes a blade of another saw in cutting engagement with the slab for a longitudinal cut. The saws are mounted on the saw assemblies and the saw assemblies are mounted on the frame and the frame is mounted on the ground contact propulsion members such that no part of said frame need contact the slab during cutting.

An outer blade cutting wheel comprising an annular thin disc base of cemented carbide and a blade section of metal or alloy-bonded abrasive grains on the outer periphery of the base is provided. The abrasive grains are diamond and/or cBN grains having an average grain size of 45-310 μm and a TI of at least 150. The blade section includes overlays having a thickness tolerance (T3max−T3min) of 0.001 mm to 0.1×T2 mm. The blade section has a roundness (ODmax/2−ODmin/2) of 0.001 mm to 0.01×ODmax mm.

The invention relates to a device for dressing a grinding wheel, comprising a sleeve to hold a corundum rod laterally and to guide it along its longitudinal axis, a ram to apply constant thrust force onto the corundum rod held in place and guided in the sleeve, to bring it into contact with the grinding wheel, means of rigidly connecting the ram shaft to the end of the corundum rod, and linear guide means for the sleeve for translating the corundum rod parallel to the axis of the grinding wheel while keeping the rod pressed against the grinding wheel with a constant force. Application to a centerless grinder in which the grinding wheel is used to grind nuclear fuel pellets.

An arrangement for a continuous casting process. The arrangement includes a vessel having a first opening for receiving molten metal in the vessel, a second opening for discharging the molten metal from the vessel, and a body extending between the first opening and the second opening, a first magnetic arrangement attached to the body, the first magnetic arrangement having a magnetic core with legs, and coils arranged around the legs, and a power system configured to provide an alternating current superimposed on a carrier current to each of the coils, each pair of alternating current and carrier current provided to a coil forming a flow control current, wherein flow control currents provided to adjacent coils are phase shifted relative each other, thereby creating a travelling magnetic field in molten metal in the vessel. A corresponding method is also presented herein.

Various embodiments provide systems and methods for casting amorphous alloys. Exemplary casting system may include an insertable and rotatable vessel configured in a non-movable induction heating structure for melting amorphous alloys to form molten materials in the vessel. While the molten materials remain heated, the vessel may be rotated to pour the molten materials into a casting device for casting them into articles.

A receiving housing of a hydraulic tensioning device for a traction mechanism drive in an internal combustion engine, having an opening that extends along a longitudinal axis for receiving a piston that is implemented for deflecting a tensioning rail of the traction mechanism drive. The receiving housing is a cast component, and the opening comprises an inner contour having an inner surface that comprises at least first segments and inclines for removing the workpiece from the mold in the opening. The second segments include surfaces that are directed into the inside of the opening and are aligned in parallel with the longitudinal axis. A sliding core is also provided that has an outer contour that is complementary to the inner contour of the opening of the receiving housing and fits into the opening. A traction mechanism drive and tensioning device having a receiving housing of this type are also included.

A method for manufacturing micrometer scale components comprises depositing a first metal on a substrate, depositing a second metal in a mold, and alloying the first and second metals together to form the component.

The invention concerns a bearing component (Ia, Ib, 1, 7, 9) for a rolling (13, 14, 16) or sliding bearing (19), wherein the bearing component (Ia, Ib, 1, 7, 9) is one of an inner ring (Ia, 1), an outer ring (Ib, 7), a rolling element (9), a cage, or a guide ring. The bearing component (Ia, Ib, 1, 7, 9) comprises a first material (2), and a second material (3) joined to the first material (2), wherein the second material (3) and the first material (2) having been joined by a semi-solid metal process.

A new method for continuous casting of molten metal is provided that allows one to obtain an intermediate product such as slab, billet wire, etc. before subsequent thermomechanical treatment (e.g. lamination or annealing), such that its chemical composition is modified by the addition of elements in order to give it greater mechanical strength.

A method for interlocking structural steel components with a metal-filled interlock is disclosed herein. The method comprises placing a mold about aligned contoured portions of structural steel components and attaching a crucible and a spout to the mold. The crucible is charged with exothermic reactive metals which are ignited, forming a molten metal filler. The molten metal filler melts a metal plug in the crucible or spout and the molten metal filler flows into the mold and about the aligned contoured portions of the structural steel components. Cooling of the molten metal filler forms a metal-filled interlock. Molds for performing the disclosed method are also disclosed herein.

A method for producing a metal part, the part including, in particular, a first set of elements having a small thickness, and a second set of elements having a large thickness, the method including: forming a peripheral portion of the elements of the second set of elements by selectively melting a powder by scanning the surface of the powder layer with a laser beam or with an electron beam; using the peripheral portion of the elements of the second set of elements as a mould by carrying out an operation of filling an inner area defined by the peripheral portion with liquid metal; cooling the metal part to solidify the inner area defined by the peripheral portion and filled with metal.

An elongate collapsible feeder element for use in metal casting and a feeder system with attached feeder element and feeder sleeve. The feeder element has an A end and an opposite B end measured along the height, and a C end and an opposite D end measured along the length. The A end is for mounting on a mold pattern or swing plate and the opposite B end is for receiving a feeder sleeve. A bore is between the A and B ends defined by a sidewall having a stepped collapsible portion. The feeder element is compressible in use to reduce the distance between the A and B ends. The bore is offset from the centre of the feeder element along the length towards the C end and a second sidewall region is non-planar, contiguous with a third sidewall region and located between the bore axis and the D end.

Provided in one embodiment is a method of making use of foams as a processing aid or to improve the properties of bulk-solidifying amorphous alloy materials. Other embodiments include the bulk-solidifying amorphous alloy/foam composite materials made in accordance with the methods.

The present disclosure is directed to a refractory metal core for use in forming varying thickness microcircuits in turbine engine components, a process for forming the refractory metal core, and a process for forming the turbine engine components. The refractory metal core is used in the casting of a turbine engine component. The core is formed by a sheet of refractory metal material having a curved trailing edge portion integrally formed with a leading edge portion.

A method of producing a trailing arm of a torsion beam axle in which an integrated drive unit of a wheel-adjacent electric drive has an electric machine and a transmission. By using the method, the trailing arm is produced in the form of a casting with a box profile. The contours for producing the area that accommodates the transmission, the connection point to the vehicle body, the bore that receives the cross-member which connects the two trailing arms to one another, the U-profile of the trailing arm, the box profile and the area that accommodates the electric machine, are modeled by cores such that the contours for producing the connection point of the trailing arm to the vehicle body, the bore that receives the cross-member and the U-profile of the trailing arm are modeled by one core.

Oil sands ore containing bitumen is treated in a reactor chamber by ultrasonic oscillations impact such that cavitation of ore molecules occurs. The disintegration of the pulsating bubbles in the cavitation results in the separation of the oil, water, sand and air fractions of the oil sands. The oil fraction may be continuously extracted for subsequent refining processes.

The invention is a process and apparatus for removing a contaminant from an aromatic selective solvent. A feed stream comprising an aromatic hydrocarbon and a non-aromatic hydrocarbon is contacted with the aromatic selective solvent in an extractive distillation zone to produce a raffinate stream comprising the non-aromatic hydrocarbon, and a rich solvent stream comprising the aromatic hydrocarbon and the solvent. The rich solvent stream is separated in a second distillation zone to produce an extract stream comprising the aromatic hydrocarbon, and a lean solvent stream comprising the contaminant and the aromatic selective solvent. At least a portion of the lean solvent stream is washed with a non-aromatic hydrocarbon to produce a clean solvent stream, at least a portion of which is passed to at least one of the extractive distillation zone and the second distillation zone.

An improved system for removing bitumen from tar sands comprises a pre-treatment system utilizing a vibratory load hopper for classifying and sizing said tar sand particles communicating with a dryer for heating and drying said tar sand particles to a predetermined temperature thereby controlling the moisture content of said tar sands. An extraction system is also included for accepting said tar sands from the dryer comprising a plurality of extraction vessels arranged in series for transporting said tar sands from a first extraction vessel to a final extraction vessel. Furthermore, a solvent system for supplying a predetermined volume of solvent flow through said extraction vessels is employed, whereby solvent is supplied to the last extraction vessel and a solvent and bitumen mixture is withdrawn from the first extraction vessel.

The present invention features a center feed system in combination with a coking vessel of a delayed coking system, or any other similar system. The center feed system features an inlet sleeve which slidably engages a retractable nozzle, with inlet and outlet, in fluid connection with a feed source of residual byproduct, allowing residual byproduct to flow from the feed source into the interior of the vessel, thus effectuating or inducing even thermal distribution throughout the vessel. The retractable nozzle is structured to extend through an opening in the coking vessel while introducing the residual byproduct into the coking vessel and retract out of the coking vessel and cover the opening for at least a portion of a coking cycle.

A system for separating contaminants from wellbore cuttings that includes a processing chamber, a heat source connected to the processing chamber adapted to vaporize hydrocarbons and other contaminants disposed on the material, a condenser operatively connected to an outlet of the process chamber and adapted to condense the vaporized hydrocarbons and other contaminants, and an ozone source operatively connected to the condenser.

A tailings solvent recovery vessel substantially without conventional internals utilizes nozzles for forming very fine solvent-containing hydrocarbon droplets from a solvent-containing tailings feedstream. The hydrocarbon droplets are discrete from water droplets. The hydrocarbon droplets are small enough to result in a large surface area and a desired fall residence time but sufficiently large that they are not entrained with the rising vapor in the vessel. The feedstream is introduced to the vessel with a pressure drop to result in an initial flashing of the solvent from the solvent-containing droplets. Heat from the vessel atmosphere or from steam flowing countercurrent to the falling hydrocarbon droplets is transferred to the falling hydrocarbon droplets resulting in vaporization of any residual solvent therefrom. A substantially solvent-depleted pool is collected in the bottom of the vessel and retained only so long as is required to pump the underflow stream from the vessel.

The improved methods relate to desalting hydrocarbon feeds using a separator with a stacked disk centrifuge to separate an emulsified oil and water rag layer. This method is effective for desalting heavy, high ionic, and non-traditional crude oils.

The invention relates to improved bitumen recovery processes and systems. One process provides for operation of a bitumen froth treatment plant at optimum shear rates in the feed pipe carrying the bitumen froth to the froth settling unit. Another process provides for optimizing the design of a bitumen froth treatment plant by optimizing the diameter of the feed pipe to impart an optimum shear rate to the bitumen froth mixture and further optimizing the volume of the feed pipe to impart an optimum residence time for the bitumen froth stream in the feed pipe. An optimal plant design is also disclosed, the plant including optimal diameter and volume of the feed pipe.

A crude treatment system includes a primary and second distillation tower for treating crude containing corrosive material. The primary distillation tower fractionates first crude into a target fraction. The secondary distillation tower fractionates second crude having a corrosive material content greater than that of the first crude into a light fraction and a remaining heavy fraction. Corrosive material in the light fraction is insufficient to corrode the primary distillation tower. A light fraction supply line supplies the light fraction from the secondary distillation tower to the primary distillation tower for treatment. The secondary distillation tower and the supply line are made from a corrosion resistant material.

A tube coil for a double fired coker heater wherein the tube coil has at least two independent flow passes in an intertwined serpentine pattern. The tubes are located in a common plane and plumbed in parallel with one another. These tube coils can be used in a number of configurations within the radiant section of a coker heater.

The invention relates to a process for the purification of crude and apparatus for its implementation. This process comprises a separation into gas and degassed emulsion and separation of the degassed emulsion into water and oil. The invention also relates to a process of separating a hydrocarbon emulsion and apparatus for implementing this. This process comprises washing of the emulsion at an oil/water interface.

A method of produced water treatment in an in-situ recovery method of producing bitumen from oil sand, the method has the steps of: separating bitumen from bitumen-mixed fluid so as to leave produced water, the bitumen-mixed fluid having been recovered from the oil sand wells; and filtering the produced water via a microfiltration membrane made of polytetrafluoroethylene.

A system for treating recovered fluids in-line that includes a thermal reactor for separating contaminated drill cuttings into drill cuttings and contaminants by applying heat to the contaminated drill cuttings so as to vaporize contaminants from the contaminated drill cuttings; a first condenser in fluid connection with the thermal reactor for condensing the vaporized contaminants; a separator in fluid connection with the first condenser for separating the condensed vapors into an oleaginous liquid and an aqueous liquid, wherein at least a portion of one of the aqueous liquid and oleaginous liquid is fed back into the first condenser via a feedback line; and an ozone generator operatively coupled to the feedback line, wherein at least the portion of the fed back liquid is ozonated by the ozone generator and fed into the condenser is disclosed.

The invention relates to an ethylene cracking furnace having a multi-pass radiant coil, comprising at least one radiant section. In the radiant section there are provided with bottom burners and/or sidewall burners, and at least one set of multi-pass radiant coil longitudinally arranged in the radiant section. The multi-pass radiant coil is a four- to ten-pass type radiant coil. At least one tube of the multi-pass radiant coil is arranged to be spatially adjacent to a tube which is not consecutive to said at least one tube. With this arrangement, the thermal radiation influence between tubes with high temperature can be reduced, so that the tubes with low temperature can absorb the radiation heat from the tubes with high temperature. Therefore, the surface temperature of the tubes with high temperature can be reduced, thus extending the lifetime of the radiant coil and the operational cycle of the cracking furnace.

The present invention provides a method and an apparatus for recovery of spent lubricating oil. The evaporation of hydrocarbon fractions from spent lubricating oil is carried out in three steps. The first step is at approximately 150-1030 mbar and between 70-240° C. in which is greater than 99% water, greater than 99% of ethylene glycol and greater than 50% of hydrocarbon molecules with normal boiling point up to 310° C. are evaporated from spent oil. The second step is operated at 6-30 mbar and 200-2900 C in which predominantly gasoil and light vacuum gasoil fractions are evaporated. The third step is operated at 250-320° C. and 0.5-15 mbar in which mainly heavy vacuum gasoil (boiling range of 425 to 570° C. on ASTM D-1160 test) is evaporated from spent oil.

A crude oil feedstream is treated to remove or reduce the content of known undesired heteroatomic and polynuclear aromatic compounds containing nitrogen and sulfur by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired compounds from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorbed boiling ranges of products having a lowered content of the undesired compounds, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process.

Described are methods, implants, insertion tools, and related systems and kits, for placing an implant to treat urinary incontinence; the implants include soft tissue anchors that are capable of engaging needles of the insertion tools, and the implants are designed to place a central support portion at a location to support a urethra with extension portions and soft tissue anchors extending to tissue at regions of an obturator foramen.

The present invention provides a method for producing thread using nonwoven, which discloses that nonwoven having different materials is slit first to get a plurality of nonwoven threads and then the nonwoven threads are used for performing a twisting process to get a plurality of nonwoven yarns. In the twisting process, each of the nonwoven threads has different materials, so that the nonwoven yarns have good mechanical characteristic and can be added for producing textiles with various functionalities.

A reversible garment with a warming side and a cooling side is comprised of a double knit fabric including a first face and a second face. The garment is reversible such that either face may be worn on the exterior of the garment. When the first side of the garment is worn against the body, the garment provides a heating effect by trapping air and body heat while wicking moisture to the outside of the fabric. When the second side of the garment is worn against the body, the garment provides a cooling garment by accelerating moisture movement across the fabric. Indicia are provided on the garment to indicate whether heating or cooling effects will be provided in the first-side-out configuration and the second-side-out configuration.

Headbands configured to provide pressure against a medical sensor secured to a patient's forehead are provided. The headbands may include one or more low friction materials to enable an elastic band of a tensioning mechanism to evenly stretch. Additionally or alternatively, the headbands may include two or more bands adapted to secure the headband to various portions of a patient's head. Still further, the headbands may be configured to independently vary the pressure created between two or more sensors and the patient's head.

The invention relates to a method for producing hoods in the form of hair nets having meshes, creating hoods having a first dimension over the head from front to rear and a second dimension crosswise thereto. A strand (20) of a net having a mesh (23) is created from threads (21). The strand (20) has two longitudinal sides. The number of meshes (23) of the net crosswise to the longitudinal sides corresponds to the number of meshes (11) of the hair net to be produced along the first or second dimension of the hair net. On or neighboring the two longitudinal sides of the strand (20), one elastic thread (22) each is fed into the outer meshes (23) of the net. At specified, regular distances, the two elastic threads (22) are guided together and connected to one another. The distance is chosen such that the number of meshes (23) of the net between two connection points (24) in the longitudinal direction of the strand (20) corresponds to the number of meshes (11) of the hair net to be produced along the first or second dimension of the hair net. The two elastic threads (22) are connected by joining to one another by means of a sealing and/or melting process. A weakness (25) is introduced in the connection region (24).

A knit fabric having a modified knit structure, having a front layer of knit fabric and a back layer of knit fabric, wherein the front layer and back layer are joined together by rows of tuck stitches formed from a yarn having no more than 3% elongation and wherein the knit fabric is puncture resistant, and optionally cut and/or abrasion resistant, and a protective garment made therefrom.

A knitting machine includes a take-down assembly that includes a first take-down roller and a second take-down roller. The first take-down roller is configured to rotatably contact and apply tension to a first portion of a knit component. The second take-down roller is configured to rotatably contact and apply tension to a second portion of the knit component. The knitting machine further includes a first actuator that actuates to selectively adjust tension applied by the first take-down roller on the first portion of the knit component. Furthermore, the knitting machine includes a second actuator that actuates to selectively adjust tension applied by the second take-down roller on the second portion of the knit component. Additionally, the knitting machine includes a controller that is operably coupled to the first actuator and the second actuator to selectively and independently control actuation of the first actuator and the second actuator.

An apparatus is disclosed for placement on a support surface between the support surface and a living being, wherein the living being has a bony prominence. The apparatus includes a first zone having a first coefficient of friction, the first zone being configured for positioning proximate the bony prominence. A second zone is adjacent the first zone, the second zone having a second coefficient of friction higher than the first coefficient of friction. The second zone is configured for positioning remote from the bony prominence. A method of preventing or healing decubitus ulcers includes positioning the bony prominence over the first zone and positioning an area remote from the bony prominence over the second zone.

Sinker cam segments in a circular knitting machine are located with respect to the generally radial direction by a generally radially inwardly facing location surface disposed radially outward of the segments. Each segment's radially outer end defines a contact region that abuts the locating surface. The contact region can be complementary surface contour to that of the locating surface, or a pair of discrete, spaced contact points protruding out from the radially outer end of the segment. The contact region is a reference for positioning the sinker cam segment with respect to the generally radial direction.

An article of footwear including a full monofilament upper is described. The full monofilament upper incorporates a knitted component including a monofilament knit element. The monofilament knit element is formed by knitting with a monofilament strand. The monofilament knit element is formed of unitary knit construction with the remaining portions of the knitted component, including peripheral portions that are knit using a natural or synthetic twisted fiber yarn. An inlaid tensile element can extend through the knitted component, including portions of the monofilament knit element. The monofilament knit element may be knitted with a monofilament strand according to a variety of knit structures.

A knitted component including a knit element and a gusseted tongue is incorporated into an upper of an article of footwear. The knit element defines a portion of an exterior surface of the upper and an opposite interior surface of the upper, with the interior surface defining a void for receiving a foot. The knit element and the gusseted tongue are formed together as a knitted component during a knitting process as a one-piece element. The gusseted tongue is formed of unitary knit construction with the knit element and is joined with the knit element in an instep area of the upper. The knitting process includes steps of forming portions of the knitted component, transferring portions of the knitted component to opposite needle beds, shifting needle beds along a lateral direction to cause portions to overlap, and joining the overlapped portions by knitting to form the gusseted tongue.

A cut resistant sweater is provided including a chest portion, sleeves, collar, and closure extending from the top edge of the collar through at least part of the chest portion. The closure includes an opening extending from the top of the collar through at least part of the chest portion, and a strip having a first part of a hook and loop fastener thereon. A second part of the hook and loop fastener is disposed on the sweater in at least two pieces, a piece adjacent to a first side of the opening and a piece adjacent to a second side of the opening. The closure is stiff relative to the collar to support the collar. A method for manufacturing the sweater includes providing a cut resistant yarn, and knitting it into a sweater in the order of cuff of first sleeve, first sleeve, body and collar, second sleeve, and cuff of the second sleeve.

A knitting machine includes a take-down assembly that includes a first take-down roller and a second take-down roller. The first take-down roller is configured to rotatably contact and apply tension to a first portion of a knit component. The second take-down roller is configured to rotatably contact and apply tension to a second portion of the knit component. The knitting machine further includes a first actuator that actuates to selectively adjust tension applied by the first take-down roller on the first portion of the knit component. Furthermore, the knitting machine includes a second actuator that actuates to selectively adjust tension applied by the second take-down roller on the second portion of the knit component. Additionally, the knitting machine includes a controller that is operably coupled to the first actuator and the second actuator to selectively and independently control actuation of the first actuator and the second actuator.

An article of footwear including a knitted component having a monofilament knit element with peripheral knit portions is described. The knitted component includes a monofilament knit element formed by knitting with a monofilament strand. The monofilament knit element is formed of unitary knit construction with the remaining portions of the knitted component, including peripheral portions that are knit using a natural or synthetic twisted fiber yarn. An inlaid tensile element can extend through the knitted component, including portions of the monofilament knit element. The monofilament knit element may be knitted with a monofilament strand according to a variety of knit structures.

An article of footwear including a full monofilament upper is described. The full monofilament upper incorporates a knitted component including a monofilament knit element. The monofilament knit element is formed by knitting with a monofilament strand. The monofilament knit element is formed of unitary knit construction with the remaining portions of the knitted component, including peripheral portions that are knit using a natural or synthetic twisted fiber yarn. An inlaid tensile element can extend through the knitted component, including portions of the monofilament knit element. The monofilament knit element may be knitted with a monofilament strand according to a variety of knit structures. A fusible strand may be knit with the monofilament knit element. Upon heating, the fusible strand can combine and surround the monofilament strand within the monofilament knit element.

A knitted component including a knit element and a gusseted tongue is incorporated into an upper of an article of footwear. The knit element defines a portion of an exterior surface of the upper and an opposite interior surface of the upper, with the interior surface defining a void for receiving a foot. The knit element and the gusseted tongue are formed together as a knitted component during a knitting process as a one-piece element. The gusseted tongue is formed of unitary knit construction with the knit element and is joined with the knit element in an instep area of the upper. The knitting process includes steps of forming portions of the knitted component, transferring portions of the knitted component to opposite needle beds, shifting needle beds along a lateral direction to cause portions to overlap, and joining the overlapped portions by knitting to form the gusseted tongue.

An article of footwear including a knitted component having a monofilament knit element with peripheral knit portions is described. The knitted component includes a monofilament knit element formed by knitting with a monofilament strand. The monofilament knit element is formed of unitary knit construction with the remaining portions of the knitted component, including peripheral portions that are knit using a natural or synthetic twisted fiber yarn. An inlaid tensile element can extend through the knitted component, including portions of the monofilament knit element. The monofilament knit element may be knitted with a monofilament strand according to a variety of knit structures.

Described are methods, implants, insertion tools, and related systems and kits, for placing an implant to treat urinary incontinence; the implants include soft tissue anchors that are capable of engaging needles of the insertion tools, and the implants are designed to place a central support portion at a location to support a urethra with extension portions and soft tissue anchors extending to tissue at regions of an obturator foramen.