In a method for multiple cutoff machining a rare earth magnet block, a cutting fluid feed nozzle having a plurality of slits is combined with a plurality of cutoff abrasive blades coaxially mounted on a rotating shaft, each said blade comprising a base disk and a peripheral cutting part. The slits in the feed nozzle into which the outer peripheral portions of cutoff abrasive blades are inserted serve to restrict any axial run-out of the cutoff abrasive blades during rotation. Cutting fluid is fed from the feed nozzle through slits to the rotating cutoff abrasive blades and eventually to points of cutoff machining on the magnet block.

A splitting wedge includes at least a wedge (1), an external sleeve (3), and a wedge sleeve (2). The wedge sleeve (2) and the external sleeve (3) are connected to one another by providing one with a flange (8, 10) and the other with a groove (7, 9), the flange (8, 10) and the groove (7, 9) being substantially perpendicular with respect to a direction of motion (B) of the wedge (1), and by arranging the flange (8, 10) in the groove (7, 9).

A dressing blade for finishing and reconditioning new and used abrasive grinding and cutting tools has a slab-shaped shank with an extension protruding longitudinally from the shank. Superabrasive grains are disposed on the surface of the extension and held in place by a brazed metal composition. This composition is formed by brazing a powdered mixture of brazing metal components and active metal components. Specific extension configurations are provided which allow aligning the superabrasive grains in single layer arrangement for precise dressing and simple fabrication of the tool. The novel dressing tool exhibits excellent wear characteristics.

An apparatus, a system and a method may use a diamond-impregnated wire loop to cut an underwater pipeline. The apparatus may have a frame, a carriage attached to the frame and/or pulleys connected to the carriage. The diamond-impregnated wire loop may be connected to the pulleys. The carriage may move relative to the frame to direct the diamond-impregnated wire loop in a forward direction relative to the frame and/or through the pipeline.

A concrete saw is disclosed having a rigid metal frame, a hydraulic drive system, a water-cooled hub, and an axially rotatable trigger assembly comprising a 12 volt switch. The saw may include a hydraulic pump operable to supply pressurized hydraulic fluid to the drive system. In some embodiments, the saw may includes a flow sharing valve fluidly coupled to the hydraulic drive system to distribute the pressurized hydraulic fluid from the a hydraulic pump in a portable power pack. A method of removing trip hazards with the saw is also disclosed.

A method for slicing a plurality of wafers from a crystal includes providing a crystal of semiconductor material having a longitudinal axis, a cross section and at least one pulling edge. The crystal is fixed on a table and guided through a wire gang defined by sawing wire so as to form the wafers. The guiding is provided by a relative movement between the table and the wire gang such that entry sawing or exit sawing using the sawing wire occurs in a vicinity of the at least one pulling edge of the crystal.

A hand-operated implement has a guide bar on which is fitted a cutting chain for cutting mineral and metal materials. The cutting chain is driven around the guide bar by a chain sprocket. The chain sprocket is arranged in a chain sprocket chamber which is delimited by a chain sprocket cover. A cutting element has an outer side facing a sidewall of the chain sprocket cover which lies in a first notional plane. The distance between the sidewall and the first notional plane measured perpendicular to the first notional plane and centrally between the top of the cutting element and the peripheral wall is less than approximately 0.8 cm over at least 30% of the section between a second notional plane containing the central axis of a fixing bolt on the guide bar and the exit opening at which the cutting chain leaves the chain sprocket chamber.

The present invention provides a wire saw which cuts a workpiece using a cutting wire and is capable of adjusting wire tension with high responsiveness. The wire saw includes first and second workpiece cutting units 1A and 1B. Each of the workpiece cutting units 1A and 1B includes a pair of guide rollers 10a and 10b around which a wire W is wound to form a workpiece-cutting wire group. The wire saw further includes a tension detector 18 which detects tension in the wire W between the workpiece cutting units 1A and 1B, and a control device 50. The control device 50 changes a rotational speed of the guide rollers 10a and 10b of at least one of the workpiece cutting units based on the tension detected by the tension detector 18 so as to keep the tension within an acceptable range.

The motorized cutter with wheels (10) comprises a motorized cutter (20) and a carriage (30). The motorized cutter (20) is equipped with an engine (24), a blade (22) rotatably driven by the engine (24), and a light-emitting unit (50) that generates laser light (52) in the same plane as the plane of rotation of the blade (22). A roadbed (90) is then cut along a line (X) drawn on the roadbed (90) by operating the motorized cutter with wheels (10) so that the line (X) is irradiated with the laser light (52). It is possible to remove the motorized cutter (20) from the carriage (30) together with the light-emitting unit (50).

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 apparatus, a system and a method may use a diamond-impregnated wire loop to cut an underwater pipeline. The apparatus may have a frame, a carriage attached to the frame and/or pulleys connected to the carriage. The diamond-impregnated wire loop may be connected to the pulleys. The carriage may move relative to the frame to direct the diamond-impregnated wire loop in a forward direction relative to the frame and/or through the pipeline.

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.

A novel cutting method and apparatus includes a cutting blade adapted to consistently and easily form a desirable kerf in a concrete substrate while capturing substantially all resulting concrete dust.

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 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.

Disclosed is a vessel for melting and casting meltable materials. The vessel may be a surface temperature regulated vessel for providing a substantially non-wetting interface with the molten materials. In one embodiment, the vessel may include one or more temperature regulating channels configured to flow a fluid therein for regulating a surface temperature of the vessel such that molten materials are substantially non-wetting at the interface with the vessel. Disclosed also includes systems and methods for melting and casting meltable materials using the vessel.

A method of casting a semi-liquid or semi-solid iron-based alloy, the method including: applying, to a part or to the whole of an uppermost surface of an inner surface of a die, a lubricating die-release agent in which particles including at least one selected from molybdenum disulfide, graphite, tungsten disulfide, boron nitride, chrome oxide and boric oxide are dispersed in a solvent; and thereafter casting by using the die.

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.

System and method of producing multi-layered aluminum alloy products are disclosed. A multi-layered aluminum alloy product may be formed by first heating a first aluminum alloy to a first temperature where the first temperature is at least about 5° C. lower than the eutectic temperature of the first aluminum alloy, second heating a second aluminum alloy to a second temperature where the second temperature is at least about 5° C. higher than the liquidus temperature of the second aluminum alloy, and coupling the second aluminum alloy to the first aluminum alloy to produce a multi-layered aluminum alloy product.

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.

A foundry mixture for making molds used for molding cast metal parts includes foundry sand, a non-aqueous binder, and a cleaning agent that includes calcium oxide. Residual foundry mixture remaining on the cast part after removal from the mold is removed by electrolytic cleaning of the cast part.

A titanium based, ceramic reinforced alloy ingot for use in producing medical implants. An ingot is formed from an alloy having comprising from about 5 to about 35 wt. % niobium, from about 0.5 to about 3.5 wt. % silicon, and from about 61.5 to about 94.5 wt. % of titanium. The alloy has a hexagonal crystal lattice α phase of from about 20 vol % to about 70 vol %, and a cubic body centered β crystal lattice phase of from about 30 vol. % to about 80 vol. %. The ingot has an ultimate tensile strength of about 940 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into an ingot. The ingot may then be formed into a medical implant and optionally annealed.

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.

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.

Processing scheme and arrangement for increasing the relative yield of light olefins involves integration of the cracking a heavy hydrocarbon feedstock to produce an effluent comprising a range of hydrocarbon products including C4-C7 olefins and the subsequent cracking at least a portion of the C4-C7 olefins to produce additional light olefins.

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.

A device for processing a hydrocarbon resource may include a hydrocarbon processing container configured to receive the hydrocarbon resource therein and having a pair of opposing ends with an enlarged width medial portion therebetween. The device may also a spirally wound electrical conductor surrounding the hydrocarbon processing container, and a radio frequency (RF) circuit coupled to the spirally wound electrical conductor and configured to supply RF power to the hydrocarbon resource while tracking a load resonance of the RF circuit. The RF circuit may be configured to generate magnetic fields within the hydrocarbon processing container parallel with an axis thereof.

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 device for processing a hydrocarbon resource may include a hydrocarbon processing container configured to receive the hydrocarbon resource therein and having a pair of opposing ends with an enlarged width medial portion therebetween. The device may also include a radio frequency (RF) source, and a first spirally wound electrical conductor surrounding the hydrocarbon processing container and coupled to the RF source. The device may further include a second spirally wound electrical conductor carried within the hydrocarbon processing container. The first spirally wound electrical conductor may be configured to generate magnetic fields with the hydrocarbon processing container that are parallel with an axis thereof.

An improved apparatus strips HPNA's from hydroprocessed streams in a fractionation column having a split shell configuration. Only one vapor stripping feed is required to the split shell of the fractionation column. The resulting reduction in steam requirement provides a superior fractionation in the column.

A device for processing a hydrocarbon resource may include a hydrocarbon processing container configured to receive the hydrocarbon resource therein and having a pair of opposing ends with an enlarged width medial portion therebetween. The device may also include a radio frequency (RF) source, and a spirally wound electrical conductor surrounding the hydrocarbon processing container and coupled to the RF source. The spirally wound electrical conductor may be configured to generate magnetic fields within the hydrocarbon processing container that are parallel with an axis thereof.

Split-shell fractionation columns and associated processes for separating aromatic hydrocarbons. A split-shell fractionation column includes a housing shell having a first height and a partition having a second height and disposed within the housing shell. The partition includes first and second vertically oriented baffles separated by a gap region, a seal plate connecting top ends of the baffles, a first input port formed to extend through the partition for the introduction of a gas into the gap region, and a first output port formed to extend outwardly from a bottom of the gap region and through the housing shell. The partition defines a first distillation zone and a second distillation zone within the housing shell.

A feed distribution device in separation columns and a method of operation for such a device. In particular, distillation columns in which the feed stream is substantially liquid phase, or a mixture of gas and liquid upstream of the column, but where the feed vaporizes or partially vaporizes prior to or as it enters the column. More specifically, the feed distribution device contains a plurality of opening which allow the feed to vaporize prior to or as it enters the column and where the openings are maintained in critical condition during operation. Significant advantage is achieved through the implementation and use of the present feed distribution devices.

The invention relates to a method producing a portioned column by forming a first segment and a third segment into arcuate segments, and attaching these arcuate segments to a second z-shaped segment to from two contiguous volumes with approximately semi-circular cross-sections that combine to form a partitioned, approximately cylindrical segment.

The present invention relates to a feed distribution device in separation columns and a method of operation. In particular it relates to distillation columns in which the feed stream is substantially liquid phase, or a mixture of gas and liquid upstream of the column, but where the feed vaporizes or vaporizes more when it enters the column. More specifically, the feed distribution device contains a plurality of opening which allow the feed to vaporize inside the column and where the openings are maintained in critical condition during operation. Significant advantage is achieved through the implementation and use of the present feed distribution device.

A system and process for integrated desulfurizing, desalting and deasphalting of hydrocarbon feedstocks is provided. A hydrocarbon feedstock, a water soluble oxidant, and a water soluble catalyst can be introduced in a oxidation zone and retained for a period of time sufficient to achieve the desired degree of desulfurization, or introduced directly into the desalting zone along with wash water. Catalyst and dissolved salt are discharged along with the wastewater effluent from the desalting zone. A hydrocarbon stream including converted hydrocarbons and oxidation by-products is passed to a deasphalting zone. In the deasphalting zone, phase separation occurs, whereby a light phase including desulfurized hydrocarbons are produced, and a heavy phase including asphaltenes and oxidation by-products are discharged, e.g., passed to an asphalt pool.

A knit apparel is made using a decorating pattern that is generated to give the apparel the appearance of tie dyed apparel. The decorating pattern includes a main element, a secondary element and intermediate zones have the same color but gradually lighter shades as the main element.

A biocompatible surgical silk mesh prosthetic device employs a knit pattern that substantially prevents unraveling and preserves the stability of the mesh device, especially when the mesh device is cut. An example prosthetic device employs a knitted mesh including at least two yarns laid in a knit direction and engaging each other to define a plurality of nodes. The at least two yarns include a first yarn and a second yarn extending between and forming loops about two nodes. The second yarn has a higher tension at the two nodes than the first yarn. the second yarn substantially prevents the first yarn from moving at the two nodes and substantially prevents the knitted mesh from unraveling at the nodes.

A method for manufacturing a fluid-filled chamber may include obtaining a spacer textile material a stabilization structure. A tensile member is removed from an area of the spacer textile material where the stabilizing structure is absent. The tensile member is located between a first polymer element and a second polymer element. Additionally, (a) the first layer is bonded to the first polymer element, (b) the second layer is bonded to the second polymer element, and (c) the first polymer element and the second polymer element are bonded together around a periphery of the tensile member.

Auxetic fabric structures, of the sort which can be useful in conjunction with composite materials, and related methods of fabrication.

Provided is a glove which has good adhesiveness to a rubber or resin coating material and excellent durability and further fits a hand well enabling good work efficiency. The glove is knitted from a covered yarn obtained by winding a sheath yarn around a core yarn and at least a part of the surface thereof is coated with a rubber or resin coating material, wherein the sheath yarn is a crimped yarn made of a high strength fiber having, as a property of a raw yarn, a tensile strength of 1.75 N/tex or more as measured according to JIS L 1013 8.5, and the crimped yarn simultaneously satisfies the following (1) to (3): (1) a degree of bulkiness of 40 cm3/g or more as measured according to JIS L 1013 8.16 A method after hot water treatment at 90° C. for 20 minutes, (2) a bulk compression modulus of 80% or more as measured according to the same method, and (3) a shrinkage/elongation ratio of 20% or more as measured according to JIS L 1013 8.11 A method.

An orthopedic padding including an elongate spacer fabric having spaced faces interconnected and separated by an intermediate spacer area, the spaced faces having a knitted construction different from a knitted construction of the intermediate spacer area, and the elongate fabric constructed at least in part of hydrophobic monofilament yarn knitted in an open construction for breathability.

A double-cylinder circular machine, particularly for knitting hosiery items, with simplified actuation mechanism, comprising a supporting structure which comprises a footing, which supports a lower needle cylinder, and a column which extends substantially vertically, protrudes upwardly from the footing and supports an upper needle cylinder, which is arranged above and coaxially with respect to the lower needle cylinder, and further comprising elements for the actuation of the lower needle cylinder and of the upper needle cylinder with a rotary motion about a common axis, the actuation elements comprising an electric motor which is connected kinematically to the lower needle cylinder and to the upper needle cylinder and is accommodated inside the column.

A light-based medical diagnostic system includes a plurality of semiconductor diodes with pump beams and a multiplexer capable of combining the pump beams and generating at least a multiplexed pump beam comprising one or more wavelengths. A first waveguide structure is configured to receive at least a portion of the one or more wavelengths and outputs a first optical beam. A second waveguide structure is configured to receive at least a portion of the first optical beam and to communicate at least the portion of the first optical beam to an output end of the second waveguide structure to form an output beam. A lens system is configured to receive at least a portion of the output beam and to communicate at least the portion of the output beam onto a part of a patient's body, such as a patient's blood.

A knitted fabric is designed and adapted to fit box springs of varying size. The knitted fabric includes four panels that each includes three layers—a middle layer, a top layer and bottom layer. The knitted fabric is elastic and stretches to fit over the box spring. The four panel construction provides a large opening on the top of the box spring, which allows the knitted fabric to be removed from the box spring without removal of the mattress.

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.

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.

A knitted fabric is disclosed, comprising a first fabric layer, a second fabric layer and a plurality of pliable threads having a predetermined length, the respective ends of the pliable threads being stitched to the first and second layers thereby connecting the first and second layers. Preferably the fabric also contains sacrificial yarn to tie in the pliable threads. Also disclosed is a method for knitting a fabric according to the invention. The fabric has uses in inflatable devices, including airbags, or lifting devices.