313results about How to "Increase the effective surface area" patented technology

A nano particle reinforced polymer element of a stator and rotor assembly for a power section of a positive displacement fluid motor or a progressive cavity pump. Nano-sized particles are blended with an uncured polymer to improve the physical and chemical properties of the polymer. The use of nano-sized particles reduces the quantity of reinforcement material required to manufacture the polymer for the stator and rotor assembly and lowers the viscosity of the uncured polymer to improve manufacturing characteristics. The use of chemically functionalized nano particles improves the chemical and physical characteristics of the polymer.

A bipolar electrosurgical instrument and method for use is provided. The instrument includes a handle at a proximal end, active and return electrodes at a distal end that are electrically insulated from one another, a shaft extending therebetween, and a converting element including an electrically conductive portion. The converting element is movable between a first position wherein the electrically conductive portion is in electrical contact with the active electrode and not the return electrode, and a second position wherein the electrically conductive portion is not in electrical contact with the active electrode.

An electrode assembly having homogeneous noble metal or blended alloy nanostructures for enhancement of capacitive charge injection. Applications can include stimulation of the baroreflex, neural stimulation and cardiac stimulation. In one embodiment, a matrix of substantially elongate nanocylinders or nanotubes are configured to deliver electrical charge to a target tissue, conducting charge substantially along the elongate axes of the nanostructures. The configuration enhances the real or effective area of the electrode to promote capacitive charge injection, and entraps solution for more complete recovery of electro-generated species. Certain embodiments may be configured to apply a suction through the electrode for temporary placement of the electrode for mapping the response of the electrode vs. positioning.

A bipolar electrosurgical instrument and method for use is provided. The instrument includes a handle at a proximal end, active and return electrodes at a distal end that are electrically insulated from one another, a shaft extending therebetween, and a converting element including an electrically conductive portion. The converting element is movable between a first position wherein the electrically conductive portion is in electrical contact with the active electrode and not the return electrode, and a second position wherein the electrically conductive portion is not in electrical contact with the active electrode.

A hydrogen-oxygen gas generator comprises an electrolytic bath (10A), a pair of electrodes composed of an anode member (2x) and cathode member (2y) both disposed in the bath, a power supply (34) for applying voltage between the anode and cathode members, vibratory mixing means (16) for vibratively mixing the electrolyte (14) in the bath, and gas collecting means for collecting the hydrogen-oxygen gas generated by the electrolysis using the electrolyte. The gas collecting means includes a lid member (10B) annexed to the electrolytic bath (10A) and a hydrogen-oxygen gas collecting pipe (10B″) connected to the hydrogen-oxygen gas output port (10B′). The vibratory mixing means (16) includes a vibrating motor (16d) vibrating at 10 Hz to 500 Hz and vibrating blades (16f) attached to a vibrating rod (16e) not rotatably but vibrating in the electrolytic bath interlockingly with the vibrating motor. The vibrating blades of the vibratory mixing member (16) are so arranged as to oppose the surfaces of the anode and cathode members (2x, 2y).

An apparatus providing high efficiency heat exchange between two fluids is disclosed. The apparatus most commonly comprises multiple thin panels with fluid channels directing the flow of the two fluids, specifically: one or more flat panels aligned at some angle to the flow of the fluid traveling through the shortest channel of the thin panels. The panels are arranged in series and parallel, so that the hot fluid travels through multiple thin panels. The coolant is delivered to the thin panels through tubes or manifolds while the hot fluid is delivered through a duct or other piping.

A wireless identification system and method used for identifying medical vials having a metallic crimp includes an RFID tag having a first antenna element located at the crimp so as to be capacitively coupled to the crimp to increase the effective surface area of the RFID antenna, and a second antenna element mounted to the side of the vial between the ends of the labeling mounted on the vial so as to not mask any visually readable information of the labeling. Dielectric adhesive is used in one embodiment to couple the antenna element to the crimp. The invention is particularly useful for small vials. A manufacturing method in which the wireless tag is an integral part of the container is disclosed.

A device for aerating wine in a bottle has an elongated, upright conduit with one end region immersed in the wine, and an opposite end region exposed to the atmosphere. A rotary shaft is located within, and extends along, the conduit. A wine blade is mounted on the shaft for drawing the wine as a wine flow into the one end region in an upward direction toward the opposite end region of the conduit upon rotation of the shaft. An air blade is preferably mounted on the shaft for causing the air to move as an air stream into the opposite end region in a downward direction toward the one end region of the conduit upon rotation of the shaft. A drive rotates the shaft, the wine blades and the air blades to propel the wine flow and the air stream against each other in a mutually countercurrent relationship and to commingle the wine flow and the air stream inside the bottle.

The present invention provides a precious metal—metal oxide composite cluster, wherein said cluster is formed as a single particle by combining a precious metal portion comprising a single atom or an aggregate of a plurality of atoms consisting of one or more precious metals, and a metal oxide portion comprising a single molecule or an aggregate of a plurality of molecules consisting of one or more metal oxides, and wherein said particle has a particle size between 1 and 100 nm.

Propped fractures in formations from which fluids are produced are described that have wormholes extending out into the formations from the faces of the fractures at locations distant from boreholes. Methods are given for creating such propped fractures having wormholes in which either a closed propped fracture is formed and then the wormholes are formed, or the entire fracture and channel system is formed before the closure occurs.

A semiconductor element which is capable of operating at a high speed, high in an electric current drive capability, and small in fluctuation among a plurality of elements, and a semiconductor device including the semiconductor element are provided. The semiconductor element has a first crystalline semiconductor region including plural crystal orientations without practically having a grain boundary on an insulating surface, the first crystalline semiconductor region being provided to be jointly connected to a conductive region including the first crystalline semiconductor region and a second crystalline semiconductor region, in which the conductive region is provided astride insulating films extending in a linear stripe pattern.

Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at ambient conditions. The nanofibers have lengths varying from 500 nm to 10 μm and form interconnected networks in a thin film. Thin film nanofiber sensors can be made of the polyaniline nanofibers having superior performance in both sensitivity and time response to a variety of gas vapors including, acids, bases, redox active vapors, alcohols and volatile organic chemicals.

The present invention discloses a functionalized silicon coating mesoporous magnetic carrier. The carrier is a compound magnetic carrier having a core-shell structure formed by coating the magnetic ferroferric oxide with the silicon dioxide and an active amido or mercapto is bonded on the surface of the magnetic carrier and the active amido or mercapto can apply the selective chemisorption effect to the target chemical. The present invention simultaneously discloses a preparation method for the carrier, which in particular is that the thickness and uniformity of the silicon film are increased through two times of silicon coating processes so as to effectively protect the magnetic carrier from being corroded by acid and base in the application; the template agent on the surface of the carrier is detracted with high temperature under the inert atmosphere and the porecreating processing is applied to the surface of the carrier so as to increase the effective surface area of the carrier and enhance the processing performance. The fixed active bacterium for the funtionalized silicon coating mesoporous magnetic carrier can be applied in the treatment of the urban domestic sewage delivers good treatment effect and has important meaning to the environment protection.

An all-solid-state lithium-ion secondary battery has an anode, a cathode, a solid electrolyte layer disposed between the anode and the cathode, and at least one of a first mixed region formed at an interface between the anode and the solid electrolyte layer and containing a constituent material of the anode and a constituent material of the solid electrolyte layer, and a second mixed region formed at an interface between the cathode and the solid electrolyte layer and containing a constituent material of the cathode and a constituent material of the solid electrolyte layer.

An apparatus and method for detecting a gas with high sensitivity, high SNR, and low cost is disclosed. Embodiments of the present invention include sensor nodes that communicate with a common controller, where each sensor node includes a resonant sensor that comprises a resonator having a selectively chemisorptive layer disposed upon it. The chemisorptive layer is a nanoparticle-based layer that improves the trapping probability for target-gas molecules, thereby improving the correspondence of the resonance frequency of the resonator to the gas concentration in the atmosphere in which it resides, and improving the sensitivity of the resonant sensor as compared to prior-art resonant mass sensors. Measurement of an electrical parameter of the chemisorption layer can also be used as a secondary detection mode. By employing the chemisorptive layer as an efficient and selective mass-collection layer affords embodiments of the present invention improved noise immunity.

A hydrogen-oxygen gas generator comprises an electrolytic bath (10A), a pair of electrodes composed of an anode member (2x) and cathode member (2y) both disposed in the bath, a power supply (34) for applying voltage between the anode and cathode members, vibratory mixing means (16) for vibratively mixing the electrolyte (14) in the bath, and gas collecting means for collecting the hydrogen-oxygen gas generated by the electrolysis using the electrolyte. The gas collecting means includes a lid member (10B) annexed to the electrolytic bath (10A) and a hydrogen-oxygen gas collecting pipe (10B″) connected to the hydrogen-oxygen gas output port (10B′). The vibratory mixing means (16) includes a vibrating motor (16d) vibrating at 10 Hz to 500 Hz and vibrating blades (16f) attached to a vibrating rod (16e) not rotatably but vibrating in the electrolytic bath interlockingly with the vibrating motor. The vibrating blades of the vibratory mixing member (16) are so arranged as to oppose the surfaces of the anode and cathode members (2x, 2y).

A lighting device comprising a solid state light emitter and a fan, the fan blowing fluid toward the emitter. A lighting device comprising a solid state light emitter and a baffle, the solid state light emitter being movable. A lighting device comprising a solid state light emitter, a substrate and a diaphragm, the diaphragm defining a chamber having a valve and being movable. A lighting device comprising a housing and a solid state light emitter within the housing, the solid state light emitter being movable. Also, methods of cooling a lighting device.

Titanium aluminide (TiAl) rotor shaft assembly (10) of a type used in a turbocharger has a TiAl rotor (20) with an axially protruded portion (40) that is fixedly joined to a recessed portion (50) of a metal shaft (30) by the synergistic combination of an interference fit, such as a heat shrinkage fit, further supported by a brazed joint (60) in which a thin layer of a brazing material (110) is interposed between the surface of the protruded portion (120) and the recessed surface (130). Optionally, one or both of the jointed surfaces have braze channels (90) to facilitate braze flow within the joint. Methods for producing the rotor shaft assembly (10) and a turbocharger having the rotor shaft assembly (10) are provided.

A disposable and noninvasive intrauterine fetal monitoring electrode assembly for monitoring fetal heart rate comprises an electrode strip for insertion into the uterus of a woman in active labor, between and in contact with the tissue of the uterine wall and the baby, and an interconnect cable for connecting the assembly to fetal monitoring equipment. The electrode strip comprises a flexible two-sided insulating strip having one or more electrodes disposed on each side of the strip. An electrical connector cable containing electrical leads provides electrical connectivity between each electrode, and a separate electrical lead disposed within the connector cable to the fetal monitoring equipment. The electrode strip of the assembly includes a grip feature by which the electrode strip may be engaged to facilitate its positioning in the uterus.

A vehicle cooler is described for providing low energy cooling to the interior of a vehicle without the use of refrigerant or a compressor. The cooler uses the evaporation of liquid from a secondary surface of a heat exchange element to cool air passing over a primary surface of the heat exchanger. The primary air is distributed to the interior of the vehicle via an air distribution mechanism, which may be adjusted from within the vehicle. The device is particularly useful for recreational vehicles.

A single piece of extruded peristaltic roller pump tubing may have an inside diameter and outside diameter and wall thickness that may vary from one segment to next along its length. The tube may be formed with an atrial segment having an OD that is larger than the ventricular OD. Also, the arterial segment wall can be distensible and may be fluted. A peristaltic pump head assembly may have a C-shaped tube-holder which has no moving parts; secures the tubing 10 in pump assembly without the clamps, flanges or other tube-attaching devices; and provides a safer method for inserting the tubing into the pump head assembly. The inner diameter of the C-shaped tube-holder may be smaller than the OD of the atrial segment such that the atrial segment becomes snuggly wedged in the holder and prevents the incremental migration of the tubing through the roller raceway in the direction of the pump roller assembly rotation.

The present invention is a catalyst for use in a fuel electrode of a polymer solid electrotype fuel cell which is formed by making a carbon powder support platinum and ruthenium thereon, and is characterized in that the loading ratio between platinum and ruthenium is from 1:2.5 to 1:4 (in molar ratio). It is preferable that the loading density of the catalyst is 40 to 70%. Additionally, it is preferable that a carbon powder having a specific surface area of 600 to 1,200 m2 / g is used as the carrier supporting the catalyst particles.

Methods and apparatus provide for zero valent nanoparticles coated with a stabilizer to inhibit oxidation, where the coating includes at least one of activated carbon, graphene, an inorganic oxide, and an organic material.

A vibration dampening device for use on compound archery bows. A device may be associated with one or more bow limb, with each device disposing a vibration damping bumper in position to shorten the vibrating length of the bow string at brace, compared to the vibrating length of a bow string of a comparable bow lacking the device(s). Certain embodiments couple bowstring vibration at brace with one or more cable. Preferred embodiments include a limb anchor adapted to distribute string-induced loading onto a bow limb at both sides of a string cam.

A polyurethane-graphite oxide composite material or nano composite is described, containing graphite oxide in expanded form present optionally, together with a phyllosilicate in expanded form in a polyurethane matrix, a method for the preparation of this composite material as well as its use as a fire retardant or as a flame-retardant seal for openings and / or bushings in walls, floors and / or ceilings of buildings.

A gas powered internal combustion engine in which the gas is provided from pressurized liquid gas in an LPG container and in which the LPG container is rigidly mounted adjacent to the internal combustion engine at a preselected angle to be in conductive heat transfer relationship to the internal combustion engine and in vibration receiving relationship to the internal combustion engine whereby the liquified gas in the LPG container is heated and the effective surface area thereof is increased.