Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process that includes: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a silicon compound having an alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.

Abstract: The invention concerns a complex number multiplier receiving the binary number A, B, C and D complementarily coded in pairs so as to perform the complex multiplication (A+jB)*(C+jD). A first processing stage enables to perform the operations A−B, C−D, and A+B whereof the results are binary numbers in base two with a redundant binary format, and a borrow-save coding for subtractions and carry-save coding for addition. A second processing stage converts said results into coded binary numbers in base four. A third processing stage enables to perform multiplication (A−B)C, (C−D)B and (A+B)D with a redundant binary format and a borrow-save coding. A last stage comprises two adders for working out the real part (A−B)C+(C−D)B and the imaginary part (A+B)D+(C−D)B in a redundant binary format and a borrow-save coding.

Abstract: An in situ thermal desorption system may be used to remove contamination from soil. Off-gas removed from the soil may be transported from the soil to a treatment facility by high temperature hoses and plastic piping. The use of high temperature hose and plastic pipe may reduce the capital cost, installation cost, and operating cost as compared to conventional transport systems from thermal desorption soil remediation systems. The high temperature hose and plastic pipe are highly resistant to corrosion caused by the off-gas. The treatment facility may separate the off-gas into a liquid stream and a vapor stream. The liquid stream and the vapor stream may be processed to reduce contaminants within the liquid stream and vapor stream to acceptable levels.

Abstract: A cooling arrangement for electric machines comprising a heat storing element provided with generally C-shaped channels and a cooling tube so configured and sized as to be insertable in said C-shaped channels of said heat storing element is described herein. The cooling tube, once inserted in the channels is deformed to conform to the C-shaped channels, whereby heat stored in said heat storing element is extracted by circulating cooling fluid inside the cooling tube.

Abstract: The present invention relates to an apparatus for producing a honeycomb body, which comprises a roll part for supplying a thin metal flat sheet via several rolls; a part for measuring the length of feed of the flat sheet which is fed through said roll part for supplying a flat sheet; a roll part for supplying a corrugated sheet to overlap the same onto said flat sheet via several rolls; a winding roll of a honeycomb body which is made by folding the overlapping flat and corrugated sheets in feed into a roll; a part for measuring the rotation angle of said winding roll; and a control part, which is connected respectively to said part for measuring the length and said part for measuring the rotation angle, wherein said control part controls the amount of winding of a honeycomb body by receiving and computing the measurement values therefrom.

Abstract: A protective guard for a finger or thumb may be used during a medical procedure. The protective guard may inhibit needle or instrument puncture of a medical practitioner's skin during a medical procedure. The protective guard may include a puncture resistant portion and a less puncture resistant portion. The material used to form the puncture resistant portion and the less puncture resistant portion may be chosen so that the guard provides a large degree of penetration resistance while still remaining flexible. The color of the puncture resistant portion may be different than the color of the less puncture resistant portion to provide a user with a visual indication of the puncture resistant portions of the protective guard.

Abstract: A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. The apparatus may include one or more lens curing units and a mold assembly. At least one lens curing unit may include a heating system. The apparatus may include a computer system. The computer may be configured to turn on components of one or more lens curing units. In some embodiments, the apparatus may include a conveyor system configured to convey the mold assembly to, through or from the apparatus. In some embodiments, the apparatus may include an annealing unit, an air distributor and/or filters.

Abstract: The present invention relates to a method for producing a polymer and copolymer of ethylene, and more particularly to a method for producing an ethylene polymer and copolymer by reacting a compound of an organic metal of Group 2, 12, or 13 on the periodic table of elements with an alkoxy silane compound in the presence of a titanium catalyst, the said titanium catalyst being produced by a process of preparing a magnesium compound by contact-reacting a halogenated magnesium compound and alcohol, of reacting the said solution with an ester compound which contains at least one hydroxy group and a silicon compound containing an alkoxy group, and also of reacting it with a solid matter obtained by reaction of a mixture of a titanium compound and a silicon compound with a titanium compound.

Abstract: The present invention relates to a catalyst for homo- or co-polymerization of ethylene, or more particularly to a solid titanium catalyst supported on a magnesium-containing carrier, having high catalytic activity and excellent polymerization properties, which can provide polymers of high bulk density and reduce the amount of polymers dissolvable in a medium during polymerization.

Abstract: The present invention relates to a solid complex titanium catalyst for homo-polymerization and co-polymerization of &agr;-olefin, obtained by (i) producing a solution of a magnesium compound by dissolving a magnesium compound and a compound of IIIA Group of the Periodic Table in a solvent mixed with cyclic ether, one or more types of alcohol, a phosphorous compound, and an organosilane, (ii) precipitating the solid particles by reacting said magnesium solution with a compound of a transition metal, a silicon compound, or the mixture thereof, and (iii) reacting said precipitated solid particles with a titanium compound and an electron donor. The catalyst of the present invention is of large particle size, narrow particle distribution, and high catalytic activity, while the polymers obtained with the use of this catalyst are of excellent stereoregularity.

Abstract: A system and method for dispensing a pressurized fluid from a container into an automobile air conditioning system. A moveable plunger in an interior of a housing may engage an automobile air conditioning system valve and pressurized container valve to allow refrigerant and lubricant to flow from the pressurized container into the automobile air conditioning system. A quick-connect coupling may be used to couple the housing to the automobile air conditioning system after the housing has been snapped onto the pressurized container. In addition, the moveable plunger may be biased toward the automobile air conditioning system valve by a spring to ensure the automobile air conditioning system valve is opened when the housing is coupled to the automobile air conditioning system.

Abstract: A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. The apparatus may include one or more lens curing units and a mold assembly. At least one lens curing unit may include a heating system. In some embodiments, the apparatus may include a conveyor system configured to convey the mold assembly to, from or through at least one lens curing unit. A movable member may be positioned within a lens curing unit. The movable member may be positionable such that at least a portion of the activating light source is disposed outside the lens curing unit.

Abstract: A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. The apparatus may include ones or more lens curing units, a mold assembly and multiple conveyor systems.

Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. The lens forming unit may include an LCD filter disposed between activating light sources and a mold assembly. The mold assembly preferably includes two mold members held together by a gasket. The gasket preferably includes four protrusions spaced at 90 degree intervals about the gasket. A lens forming composition may include a first photochromic compound, a second photochromic compound and a light effector. The light effector may alter the color of a lens when exposed to photochromic activating light, when compared to a lens formed from a lens forming composition which does not include a light effector.

Abstract: Organoclays based on specific types of ester quats are found to be remarkably effective for use in preparing nanocomposites. These organoclays comprise the reaction product of a smectite clay and a quaternary ammonium compound (or “quat”) which comprises two esterified radicals hereinafter called a “diester quat”). The diester quat may be present in admixture with further quaternary ammonium compounds having esterified radicals, especially compounds having three esterified radicals (hereinafter “triester quats”); or compounds having a single esterified radical (hereinafter “monoester quats”). Where such a mixture of quats is used, the reaction is between the smectite clay and the quat mixture.

Abstract: The integrated circuit comprises an inductor made at a metallization level of the circuit and a buried layer situated in the substrate of the integrated circuit under the said inductor, and connection means linking the inductor to the buried layer. The connection means are configured in such a way as to ensure the same potential in terms of dynamic response between the inductor and the buried layer. This equipotential is ensured by a transistor in a follower type arrangement made in the substrate and connected in parallel with the stray capacitances under the inductor.

Abstract: The present invention provides a flame retardant resin composition, or more particularly, a flame retardant polypropylene resin composition which comprises polypropylene having improved flow melt characteristics, flame retardants, a flame retardant aid, and a tetrafluoroethylene polymer. The composition of the present invention has high melt tension, without deterioration of the mechanical properties of flame retardant polypropylene, and drastically enhanced characteristics of shape maintenance and a flaming drip during burning.

Abstract: A device and a method for production of magnetized water by changing the arrangement of molecules of water takes advantage of the phenomenon that molecules of water form clusters and become enriched in a pulsating magnetic field. The device may include a chamber, for placing a container of purified water in, wound with coils of wire a predetermined number of rounds; a means of supplying power to convert originally supplied alternating current of electricity into pulsating direct current signals and impress them on said coils for induction of a pulsating magnetic field to said chamber; a means of cooling said chamber; a means of sensing changes in temperature of said coils; a means of measuring time to gauge the time of magnetization of said purified water; and a means of control to stop input of direct current pulsating signals when the time spent on magnetizing has reached a preset time.

Abstract: The present invention relates to method for a detecting tracking short. In some embodiments, the method may include detecting current flowing on an electric circuit. In other embodiments, the method may include calculating the frequency distribution of the variation of the current detected in a predetermined period. In an embodiment, the method may include outputting a detecting signal in case the frequency of variations included in the predetermined range satisfies a judgement reference.

Abstract: A machine may produce a tube having textured internal and external surfaces in a single operation. Inner and outer knurling tools may form the textured surfaces. The texturing of the internal and external surfaces may be helical patterns of ribs and grooves. The height of the ribs formed in the internal and external surfaces may be less than about 35 mils. The angles of the patterns relative to a longitudinal axis of the tube may be less than about 45°. The angle of the helical pattern allows textured tubes to be used as heat exchanger elements wherein flow is directed substantially coaxial to the longitudinal axes of the tubes. The helical pattern formed in the external surface may be oriented in a right hand or left hand helical orientation. Similarly, the helical pattern formed in the internal surface may be oriented in a right hand or left hand orientation.