297results about How to "Reduce abrasion" patented technology

A transluminal sheath is disclosed that permits instrumentation to be passed therethrough. The transluminal sheath comprises a composite structure with an inner layer, an outer layer, and a reinforcing layer. The materials comprising the inner and outer layer are plastically deformable and maintain their shape, once bent into a specific configuration. The reinforcing layer further has radiopacity enhancing coatings to improve visibility under fluoroscopy and a system of flutes running longitudinally, to enhance fluid transport and reduce friction.

The invention relates to a process for the production of a molded porous ceramic article containing β-SiC, which process comprises the following steps: the preparation of a molded article containing silicon and carbon and the subsequent pyrolysis and siliconization of the article containing silicon and carbon to form SiC. The invention further relates to a molded porous ceramic article containing SiC which has been produced from a molded article containing silicon and carbon.

This invention provides a leather-like sheet excellent in hand softness and appearance durability, as a composite sheet consisting of a nonwoven fabric composed of ultrafine long fibers in which ultrafine fibers with a fiber fineness of 0.0001 to 0.5 dtex are entangled with each other, and a woven or knitted fabric, characterized in that at least some of the aforementioned ultrafine fibers pass through the woven or knitted fabric, that the appearance is grade 3 or higher while the abrasion loss is 10 mg or less in the evaluation of abrasion resistance, and that the sheet is substantially composed of only a fiber material of a non-elastic polymer.

A rope comprising a plurality of bundle groups, each of said bundle groups having a periphery and comprising a plurality of high strength fibers, at least one low coefficient of friction fiber disposed around at least a portion of the periphery of at least one of the bundle groups.

The present invention provides a fuel oil additive capable of effectively improving the quality of fuel oils, which comprises an oil-soluble metal salt of organic acid having the general formula MR, where R is an organic acid radical and the corresponding organic acid is a C1-C40 saturated or unsaturated fatty acid, naphthenic acid, aromatic acid or alkylphenol, M is a metal cation and the corresponding metal is an alkali metal, alkali-earth metal, rare-earth metal, transition metal, or the like. The present invention also provides fuel oil products added to the fuel oil additive, including gasoline, diesel oil, kerosene, heavy oil, resid, or the like. The present invention especially provides a gasoline antiknock agent and a gasoline having excellent antiknock property, and this kind of gasoline antiknock agent is characteristic of effectiveness, economy, safety, no environmental pollution, no toxicity to human body, no adverse effect on parts of automobile engine, use convenience, and the like.

A product and process for laundering delicate or dry-clean only garments in a washing machine, such as a conventional home washing machine. The process may utilize a garment container, such as a flexible wrap to protect the garments. The process also includes at least one cleaning composition specially formulated for delicate garments. The cleaning composition(s) can be in a number of suitable forms, and can be introduced into the process in a number of different manners. The products used in the process may be provided in the form of a kit. The kit may also include a pretreatment applicator.

The invention relates to a process for the production of a molded porous ceramic article containing β-SiC, which process comprises the following steps: the preparation of a molded article containing silicon and carbon and the subsequent pyrolysis and siliconization of the article containing silicon and carbon to form SiC. The invention further relates to a molded porous ceramic article containing SiC which has been produced from a molded article containing silicon and carbon.

A rolling device in which damage such as seizure or wear is less liable to occur and which has a long life, even when used under severe conditions such as high speed, heavy load, high temperature and insufficient lubrication. A thrust needle roller bearing includes an inner ring 1, outer ring 2, and a plurality of rolling elements 3 rollably arranged between a raceway surface 1a of inner ring 1 and a raceway surface 2a of outer ring 2. A lubricant film consisting of a solid lubricant is coated over an area equivalent to an area ratio of 75% or more of at least one member of the group consisting of raceway surface 1a of inner ring 1, raceway surface 2a of outer ring 2, and a rolling contact surface 3a of rolling element 3. The thickness of the lubricant film is preferably 0.05 μm or more and 8 μm or less.

A card edge connector assembly includes a circuit board, a connector, an electrical card and a fixing structure. The connector is formed on the circuit board, the front rim of the electrical card is inserted into the insertion slot of the connector. The fixing structure has an elastic element having a fixing portion positioned on the circuit board. Two relating opposing sides of the fixing portion extends two elastic arms whose free ends form a beveled edge and a clasp portion, and define positioning slots on the rear rim of the electrical card. The length of the elastic arm increases in such a way that the elasticity of the elastic arm becomes greater so as to prevent the elastic arm abrading and breaking to ensure the positioning function and enhance the shock-resistance.

An artificial nail is disclosed, which can increase the adhesive force between a French-nail manicure and the artificial nail and prevent a French-nail decoration from being damaged. The artificial nail includes an upper surface having a rough portion, a French-nail decoration formed on the rough upper surface, an adhesive layer having a strong adhesive force interposed between a French-nail manicure and the upper surface having the French-nail decoration. Also, the artificial nail set includes a tree having plurality of branches branching off from both sides of the tree and a plurality of artificial nails, each of which is detachably coupled to each end portion of the branches and has the above-described construction. The French-nail decoration formed on the artificial nail has a prolonged lifetime because it is prevented from being peeled off, worn or damaged (abraded).

A composite bundle for repeated stress applications comprising at least one fiber of a high strength material, at least one fiber of fluoropolymer, wherein the fluoropolymer fiber is present in an amount of about 40% by weight or less.

This invention relates to a tire having a tread intended for winter performance comprised cis 1,4-polybutadiene rubber (BR) and specialized solution polymerization prepared high vinyl styrene / butadiene rubber (HVS-SBR). Such tire tread is comprised of a compatible rubber blend of at least 40 phr of the BR in combination the HVS-SBR together with reinforcing filler composed of precipitated silica with a low BET nitrogen surface area and, optionally, rubber reinforcing carbon black. A disulfide silane based silica coupler is used to aid in coupling the precipitated silica to the elastomers. Compatibility of the combination of the BR with a relatively low glass transition temperature (Tg) of −100° C. or lower and the HVS-SBR with a relatively high Tg of at least 30° C. or higher, and therefore spaced apart Tg's of at least 70° C. is promoted by the high vinyl content of the HVS-SBR in a range of from about 40 to about 50 percent based upon its polybutadiene portion.

A method for operating a clothes treating apparatus having a dry function capable of reducing abrasion and crease of a dry object and improving a dry efficiency is provided. The method for operating a clothes treating apparatus having a dry function for drying the clothes by supplying hot air into the interior of a tub includes: supplying hot air into the interior of the tub while forwardly and reversely rotating the tub; detecting the moisture content of the clothes put into the interior of the tub; lowering the temperature of hot air and supplying the same when the detected moisture content is less than a first predetermined level; and supplying the hot air having a lower temperature to complete drying.

A method and apparatus for determining the wear resistance of the surface of a sample object includes an abrasive grinding belt, run between the sample object and a counter-body, with the grinding belt being pressed against the sample object with a predetermined force by the counter-body. The position of the counter-body is determined at, at least, a first position and a second position, each occurring at two different points in time. The wear resistance of the surface of the sample object is determined from the difference in determined positions.

The present invention provides a high-strength wear-resistant steel plate with Brinell hardness of ≧HB420, comprising the following chemical compositions (by weight %) C: 0.205-0.25%, Si: 0.20-1.00%, Mn: 1.0-1.5%, P≦0.015%, S≦0.010%, Al: 0.02-0.04%, Ti: 0.01-0.03%, N≦0.006%, Ca≦0.005%, and more than one of Cr≦0.70%, Ni≦0.50%, Mo≦0.30%, other compositions being Ferrum and unavoidable impurities. Also provided is a method of manufacturing the wear-resistant steel plate has remarkable TRIP effect in use, improving substantially its wear resistance, thereby meeting the high demand for wear-resistant steel plates in related industries.

The invention discloses polishing liquid for polishing low dielectric materials, which contains silicon dioxide and water; and the polishing liquid is characterized in that the polishing liquid further contains a mixed corrosion inhibitor. The polishing liquid can enhance the protection of a Cu thin line, significantly reduce the defects of saw teeth, dents, scratches, erosion, scratches, and the like, and improve the electrical performance of a polishing chip.

An image forming apparatus includes a photosensitive drum and a transfer roller disposed opposite to the photosensitive drum. Provided upstream of the transfer roller in a paper sheet feeding direction is a roller that guides a paper sheet between the photosensitive drum and the transfer roller. The roller is disposed at such a position that the paper sheet is brought into a surface of the photosensitive drum and then supplied between the photosensitive drum and the transfer roller. With the above-described structure, a gap is not formed between the paper sheet and the photosensitive drum, so that poor image transfer attributable to an electric discharge, that occurs at the gap, can be prevented.

A working method for a sapphire substrate for dividing a sapphire substrate along a set planned dividing line includes a cutting groove forming step of positioning a cutting blade, which includes a cutting edge to which diamond grain is secured by nickel plating, to a planned dividing line of the sapphire substrate and feeding the cutting blade and the sapphire substrate relative to each other for working while rotating the cutting blade to form a cutting groove, which serves as a start point of break, along the planned division line on the sapphire substrate, and a breaking step of applying external force to the sapphire substrate, for which the cutting groove forming step is carried out, to break the sapphire substrate along the planned dividing line along which the cutting groove is formed. The cutting groove forming step is set such that a rotational speed of the cutting blade is 20000 to 35000 rpm, a cutting-in depth of the cutting blade is 5 to 15 μm and a working feeding speed is 50 to 150 mm / second.

A centralizer for a tubular body in a wellbore is provided herein. The centralizer includes an elongated body having a bore there through. The bore is dimensioned to receive a tubular body. The elongated body has an inner surface and an outer surface. The centralizer also has a coating deposited on at least the inner surface. The coating is designed to provide a reduced coefficient of friction on the surface. A method of fabricating a centralizer is also provided herein.

The invention discloses a method for preparing an adsorption material from fine coal gasification slag. The method comprises the following steps: 1, taking a proper amount of the fine coal gasification slag, and adding water to prepare a fine coal gasification slag slurry with the solid content being 10-30 wt%; 2, fully stirring the slurry prepared in step 1, performing gravity cyclone separation,collecting the obtained heavy separation product to obtain a silicon-rich composite slurry, and collecting the obtained light separation product to obtain a carbon-rich composite slurry; and 3, carrying out solid-liquid separation and drying on the carbon-rich composite slurry to obtain the carbon-rich adsorption material, and further preparing other products from the remaining silicon-rich composite slurry. The method realizes the high-added value recycling of the fine coal gasification slag.

The present invention relates to a rotary joint for joining two waveguides for guiding electromagnetic waves, comprising a first portion adapted to receive a first waveguide, a second portion adapted to receive a second waveguide, and a third portion adapted for polarization rotation and arranged between the first portion and the second portion. The rotary joint is configured such that two portions selected from the group comprising the first portion, the second portion and the third portion are rotatable between at least two different angular positions around a central axis. Further, the rotary joint being configured to switch between a jointed state, in which the portions contact each other for electrical connection, and a non-jointed state. The present invention also relates to a method of operating such a rotary joint and a computer program and a computer readable non-transitory medium for implementing such a method.

A membrane designed to surround the front portion of the foot and protect it from pressure that may be applied by shoes. The membrane acts as a protective barrier between the shoe and the wearer's foot. As a result, direct abrasion of the foot caused by portions of the shoe is reduced. Additionally, the membrane is designed to spread the pressure exerted by portions of the shoe, such as straps, to a significantly larger surface area of the wearer's foot. The membrane is worn on the front portion of the foot between the toes and the heel.

A cable includes an inclusion containing stranded wire conductor that includes a plurality of stranded wires formed by twisting a plurality of conductor wires, and a plurality of thin diameter inclusions having an external diameter thinner than that of each of the stranded wires. The inclusion containing stranded wire conductor is formed by together twisting a plurality of the stranded wires and a plurality of the thin diameter inclusions so as to allow one of the thin diameter inclusions to be located between adjacent stranded wires of a plurality of the stranded wires.

A diverter valve for bulk solids is disclosed. The valve has a single inlet and two or more outlets, preferable three. Two pivotal gate valves are used for three outlets so that one is open and two are closed. The valve includes a novel pivotal gate structure which includes a resilient planar component sandwiched between two rigid planar components. The resilient component engages the valve housing so as to avoid metal to metal contact. The invention also includes a seal bar on each side of the housing which presents a linear surface that is perpendicular to the plane of the gate structure so as to present a firm surface against which the gate structure seals. The seal bars for each gate structure are discontinuous so as to accommodate positioning of the other gate structure in a smooth non-deformed sealing relationship to the housing. Additional seal bars engage the top and sides of each gate structure when moved to a “closed” position.

A speed reducer including a gear box having a first frame and a second frame combined together, an input gear fixed on an input shaft being rotated by a driving force, an output gear fixed on an output shaft, an intermediate shaft, intermediate gears fixed on the intermediate shaft to reduce a speed of rotation of the input gear for being transmitted to said output gear, wherein the input shaft and the intermediate shaft are rotatably supported by the first frame for always maintaining the length between each core of the input shaft and the intermediate shaft as a predetermined length.

A solid body tribological pairing for machine parts comprising a first slide element from a first basic material and a second slide element from a second basic material is characterized in that at least one of the slide elements comprises a lubricant in the form of a hydroxide compound introduced into the basic material before its use as a machine part.