Patent application number | Description | Published |
20090082474 | HIGHLY DISPERSIBLE CARBON NANOSPHERES IN A POLAR SOLVENT AND METHODS FOR MAKING SAME - The particle sizes of agglomerates of carbon nanospheres are reduced by dispersing the carbon nanospheres in a polar solvent. The carbon nanospheres are multi-walled, hollow, graphitic structures with an average diameter in a range from about 10 nm to about 200 nm, more preferably about 20 nm to about 100 nm. Spectral data shows that prior to being dispersed, the carbon nanospheres are agglomerated into clusters that range in size from 500 nm to 5 microns. The clusters of nanospheres are reduced in size by dispersing the carbon nanospheres in the polar solvent (e.g., water) using a surface modifying agent (e.g., glucose) and ultrasonication. The combination of polar solvent, surface modifying agent, and ultrasonication breaks up and disperses agglomerates of carbon nanospheres. | 03-26-2009 |
20090093554 | HIGHLY DISPERSIBLE CARBON NANOSPHERES IN AN ORGANIC SOLVENT AND METHODS FOR MAKING SAME - The particle sizes of agglomerates of carbon nanospheres are reduced by dispersing the carbon nanospheres in an organic solvent. The carbon nanospheres are multi-walled, hollow, graphitic structures with an average diameter in a range from about 10 nm to about 200 nm, more preferably about 20 nm to about 100 nm. Spectral data shows that prior to being dispersed, the carbon nanospheres are agglomerated into clusters that range in size from 500 nm to 5 microns. The clusters of nanospheres are reduced in size by dispersing the carbon nanospheres in an organic solvent containing at least one heteroatom (e.g., NMP) using ultrasonication. The combination of organic solvent and ultrasonication breaks up and disperses agglomerates of carbon nanospheres. | 04-09-2009 |
20090093582 | FUNCTIONALIZATION OF CARBON NANOSHPERES BY SEVERE OXIDATIVE TREATMENT - Carbon nanostructures are formed from a carbon precursor and catalytic templating nanoparticles and are treated with a severe oxidative agent to introduce oxygen-containing functional groups to the surface of the graphitic material. Methods for manufacturing carbon nanostructures generally include (1) forming a precursor mixture that includes a carbon precursor and a plurality of catalytic templating particles, (2) carbonizing the precursor mixture to form an intermediate carbon material including carbon nanostructures, amorphous carbon, and catalytic metal, (3) purifying the intermediate carbon material by removing at least a portion of the amorphous carbon and optionally at least a portion of the catalytic metal, and (4) treating the intermediate carbon material with a severe oxidative treatment to increase surface functionalization. Examples of oxidative treatments include (i) a mixture of nitric acid and sulfuric acid, (ii) a solution of hydrogen peroxide, or (iii) a mixture of sulfuric acid and hydrogen peroxide. | 04-09-2009 |
20100133481 | POLYMERIC MATERIALS INCORPORATING CARBON NANOSTRUCTURES AND METHODS OF MAKING SAME - The present invention relates to novel composites that incorporate carbon nanospheres into a polymeric material. The polymeric material can be any polymer or polymerizable material compatible with graphitic materials. The carbon nanospheres are hollow, graphitic nanoparticles. The carbon nanospheres can be manufactured from a carbon precursor using templating catalytic nanoparticles. The unique size, shape, and electrical properties of the carbon nanospheres impart beneficial properties to the composites incorporating these nanomaterials. | 06-03-2010 |
20110095238 | POLYMERIC MATERIALS INCORPORATING CARBON NANOMATERIALS - The present invention relates to novel composites that incorporate carbon nanospheres into a polymeric material. The polymeric material can be any polymer or polymerizable material compatible with graphitic materials. The carbon nanospheres are hollow, graphitic nanoparticles. The carbon nanospheres can be manufactured from a carbon precursor using templating catalytic nanoparticles. The unique size, shape, and electrical properties of the carbon nanospheres impart beneficial properties to the composites incorporating these nanomaterials. | 04-28-2011 |
Patent application number | Description | Published |
20110031949 | SELF-OSCILLATING SWITCHED MODE CONVERTER WITH VALLEY DETECTION - An energy converter is disclosed in which self oscillation mode operation is improved by a closed loop feedback control. The feedback control utilises the voltage error from the voltage valley in the drain voltage (Vdrain) of the converter switch ( | 02-10-2011 |
20110068713 | METHOD AND CIRCUIT ARRANGEMENT FOR CYCLE-BY-CYCLE CONTROL OF A LED CURRENT FLOWING THROUGH A LED CIRCUIT ARRANGEMENT, AND ASSOCIATED CIRCUIT COMPOSITION AND LIGHTING SYSTEM - The invention provides a method for cycle-by-cycle control of a LED current (ILED) flowing through a LED circuit arrangement (LEDCIRC) at a mean LED current level. The method comprises a) establishing a converter current (IL), b) establishing an oscillation of the converter current (IL) between substantially a valley current level and substantially a peak current level, c) feeding the LED circuit arrangement (LEDCIRC) with the converter current (IL) as the LED current during a part of an oscillation cycle of the oscillation of the converter current, d) determining a current level correction for compensating a current level error between an integral over an oscillation cycle of the LED current and a reference, the reference being representative of the mean LED current level, and e) adjusting at least one of the valley current level and the peak current level with the current level correction for use in a successive cycle of the oscillation of the converter current. The invention also provides a circuit arrangement operable for using the method, a LED driver IC using the circuit arrangement, a circuit composition with at least one LED and the circuit arrangement, and a lighting system with the circuit composition. | 03-24-2011 |
20120112711 | POWER FACTOR CONTROLLER WITH ERROR FEEDBACK, AND A METHOD OF OPERATING SUCH A POWER FACTOR CONTROLLER - A power factor controller is disclosed, in which error feedback is provided my means of a parallel combination of at least two error feedback channels. By providing at least two error feedback channels, the stability associated with, for instance, a continuously integrated feedback loop with relatively long time constant, may be combined with a fast transient response associated with, for instance, a sample-and-hold error feedback. | 05-10-2012 |
20120300517 | POWER FACTOR CORRECTOR WITH HIGH POWER FACTOR AT LOW LOAD OR HIGH MAINS VOLTAGE CONDITIONS - A power factor corrector raises power factor at low loads or high mains voltages by modifying the switch timing or the current received by the power converter. It achieves this by increasing the switch-on time of a control switch during the falling time so that the majority of the switch-on time during a mains period occurs during the falling time, to thereby control the current received by the converter to compensate for current received by the intermediate filter. Some embodiments may employ a feedback system to produce one or more error signals that modify the control signal used to control the operation of the converter. Various embodiments may also include additional stages that limit the compensation range of the error signal. | 11-29-2012 |
20140016373 | CONTROL CIRCUIT FOR A SWITCHED-MODE POWER SUPPLY - A control circuit for a switched-mode power supply having an input side ( | 01-16-2014 |
Patent application number | Description | Published |
20110052360 | ROBOTIC MANIPULATOR - A robotic manipulator for clamping a workpiece includes a power source, a first rotary member, and a clamping mechanism. The first rotary member is connected to and rotated by the power source. The clamping mechanism is non-rotatably connected to the first rotary member and includes a first clamping member and a second clamping member capable of coupling to and decoupling from the first clamping member. The first clamping member and the second clamping member are coupled to each other. A receptacle is defined between the first clamping member and the second clamping member to receive the workpiece. The receptacle has a shape and size substantially the same as the workpiece. | 03-03-2011 |
20110070019 | JOINT - A joint includes a first retaining base, a connecting rod, a positioning plate, and at least two elastic members. The connecting rod is movably connected to the first retaining base. The positioning plate is fixed to the connecting rod. The at least two elastic members are disposed between the first retaining base and the positioning plate. The at least two elastic members are arranged along a circumference of the connecting rod. | 03-24-2011 |
20120128948 | COATED ARTICLE AND METHOD FOR MANUFACTURING SAME - A coated article includes a substrate; a color layer deposited on the substrate; and a pattern layer deposited on the surface of the color layer opposite to the substrate. A network of metal nuclei groups forms the pattern layer. The network of metal nuclei groups includes a plurality of metal nuclei, and each metal nucleus is bonded to at least one other metal nucleus. | 05-24-2012 |
20130084784 | PRESSURE DETECTION DEVICE AND POLISHING APPARATUS - A pressure detection device includes a pressure detector, a bearing member, at least two guiding rods passing through the bearing member and connecting with the pressure detector, at least two elastic elements sleeving on the at least one guiding rod and resisting between the bearing member and the pressure detector for transferring forces from the bearing member to the pressure detector. | 04-04-2013 |
Patent application number | Description | Published |
20090036940 | HYPERTENSION DIAGNOSIS AND THERAPY USING PRESSURE SENSOR - An example relates to a method for sensing a pulmonary artery pressure (PAP) and providing a sensed PAP signal, detecting an abnormal blood pressure (BP) condition using information from the sensed PAP signal, delivering a pacing energy to a heart, and automatically altering at least one pacing characteristic in response to the detected abnormal BP condition. The detecting an abnormal BP condition can include detecting various forms of hypertension or hypotension. The automatically altering the at least one pacing characteristic can include automatically altering at least one of a pacing rate, a pacing waveform, an atriventricular (AV) delay, an interventricular (VV) delay, a pacing mode, or a pacing site. The method can also include delivering vagal nerve stimulation and automatically altering the vagal nerve stimulation in response to the detected abnormal BP condition. The detecting the abnormal BP condition can also include using a sensed auxiliary physiological parameter. | 02-05-2009 |
20100010559 | EVENT-BASED BATTERY MONITOR FOR IMPLANTABLE DEVICES - A remaining charge capacity of a battery having an initial charge capacity is monitored. The battery powers a remote implantable medical device (IMD) that includes an active state, during which the remote IMD performs at least one function, and an inactive state, during which the remote IMD performs no functions. An active state charge consumption is computed based on stored parameters associated with an operational charge consumption for each function, and an inactive state charge consumption is computed based on a leakage current associated with the inactive state and a time the remote IMD is in the inactive state. The active state charge consumption and inactive state charge consumption are subtracted from the initial charge capacity to determine the remaining charge capacity. | 01-14-2010 |
20100317977 | IMPLANTABLE MEDICAL DEVICE WITH INTERNAL PIEZOELECTRIC ENERGY HARVESTING - Methods, systems, and apparatus for powering and/or recharging medical devices implanted within the body are described. An illustrative power generation module disposable within the interior space of an implantable medical device includes a module body that defines an interior cavity as well as a flexible diaphragm that spans the interior cavity. The flexible diaphragm includes a first electrical conductor, a piezoelectric layer disposed adjacent to the first electrical conductor, and a second electrical conductor disposed adjacent to the piezoelectric layer. The piezoelectric layer is configured to displace within the interior cavity and generate a voltage differential between the first electrical conductor and the second electrical conductor. | 12-16-2010 |
20100331905 | METHOD AND APPARATUS FOR CLOSED-LOOP CONTROL OF ANTI-TACHYARRHYTHMIA PACING USING HEMODYNAMIC SENSOR - A cardiac rhythm management (CRM) system includes an implantable medical device that delivers anti-tachyarrhythmia therapies including anti-tachyarrhythmia pacing (ATP) and a hemodynamic sensor that senses a hemodynamic signal. The implantable medical device includes a hemodynamic sensor-controlled closed-loop ATP system that uses the hemodynamic signal for ATP capture verification. When ATP pulses are delivered according to a selected ATP protocol to terminate a tachyarrhythmia episode, the implantable medical device performs the ATP capture verification by detecting an effective cardiac contraction from the hemodynamic signal. The ATP protocol is adjusted using an outcome of the ATP capture verification. | 12-30-2010 |
Patent application number | Description | Published |
20090060832 | HYDROGEN STORAGE USING POROUS CARBON NANOSPHERES - Hydrogen is stored by adsorbing the hydrogen to a carbon nanomaterial that includes carbon nanospheres. The carbon nanospheres are multi-walled, hollow carbon nanostructures with a maximum diameter in a range from about 10 nm to about 200 nm. The nanospheres have an irregular outer surface and an aspect ratio of less than 3:1. The carbon nanospheres can store hydrogen in quantities of at least 1.0% by weight. | 03-05-2009 |
20100038263 | HYDROGEN STORAGE APPARATUS USING POROUS CARBON NANOSPHERES - Hydrogen is stored by adsorbing the hydrogen to a carbon nanomaterial that includes carbon nanospheres. The carbon nanospheres are multi-walled, hollow carbon nanostructures with a maximum diameter in a range from about 10 nm to about 200 nm. The nanospheres have an irregular outer surface with graphitic defects and an aspect ratio of less than 3:1. The carbon nanospheres can store hydrogen in quantities of at least 1.0% by weight. | 02-18-2010 |
20100092370 | PREPARATION OF A CARBON NANOMATERIAL USING A REVERSE MICROEMULSION - Powdered, amorphous carbon nanomaterials are formed from a carbon precursor in reverse microemulsion that includes organic solvent, surfactant and water. Methods for manufacturing amorphous, powdered carbon nanomaterials generally include steps of (1) forming a reverse microemulsion including at least one non-polar solvent, at least one surfactant, and at least one polar solvent, (2) adding at least one carbon precursor substance to the reverse microemulsion, (3) reacting the at least one carbon precursor substance so as to form an intermediate carbon nanomaterial, (4) separating the intermediate amorphous carbon nanomaterial from the reverse microemulsion, and (5) heating the intermediate amorphous carbon nanomaterial for a period of time so as to yield an amorphous, powdered carbon nanomaterial. Amorphous, powdered carbon nanomaterials manufactured according to the present disclosure typically have a surface area of at least 500 m | 04-15-2010 |
20100125035 | CARBON NANOSTRUCTURES MANUFACTURED FROM CATALYTIC TEMPLATING NANOPARTICLES - Methods for manufacturing carbon nanostructures include: 1) forming a plurality of catalytic templating particles using a plurality of dispersing agent molecules; 2) forming an intermediate carbon nanostructure by polymerizing a carbon precursor in the presence of the plurality of templating nanoparticles; 3) carbonizing the intermediate carbon nanostructure to form a composite nanostructure; and 4) removing the templating nanoparticles from the composite nanostructure to yield the carbon nanostructures. The carbon nanostructures are well-suited for use as a catalyst support. The carbon nanostructures exhibit high surface area, high porosity, and high graphitization. Carbon nanostructures according to the invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes. | 05-20-2010 |
20100196246 | METHODS FOR MITIGATING AGGLOMERATION OF CARBON NANOSPHERES USING A CRYSTALLIZING DISPERSANT - Novel methods for manufacturing carbon nanostructures (e.g., carbon nanospheres) that are highly dispersed include forming a precursor composition, polymerizing the precursor composition, and carbonizing the polymerized material (e.g., through pyrolysis) to form the carbon nanostructures. The precursor composition includes catalytic metals and a crystallizing dispersant. The crystallizing dispersant forms a crystalline phase in the polymerized precursor material which facilitates the formation of dispersed carbon nanostructures during the carbonation step. | 08-05-2010 |
20100311869 | POLYMERIC MATERIALS INCORPORATING CARBON NANOSTRUCTURES AND METHODS OF MAKING SAME - The present invention relates to novel composites that incorporate carbon nanospheres into a polymeric material. The polymeric material can be any polymer or polymerizable material compatible with graphitic materials. The carbon nanospheres are hollow, graphitic nanoparticles. The carbon nanospheres can be manufactured from a carbon precursor using templating catalytic nanoparticles. The unique size, shape, and electrical properties of the carbon nanospheres impart beneficial properties to the composites incorporating these nanomaterials. | 12-09-2010 |
Patent application number | Description | Published |
20120028030 | COATED ARTICLE AND METHOD FOR MANUFACTURING SAME - A coated article includes a substrate, and a coating deposited on the substrate by magnetron sputtering. The coating includes micropores, and each micropore is sealed by a sealing element. | 02-02-2012 |
20140126958 | LOCKING MECHANISM - A locking mechanism is disclosed. The locking mechanism includes a locking member, a guiding member, three engaging members, and an elastic member. Three receiving holes are defined in an outer side surface of the locking member. The guiding member is slidably and partly received in the locking member. The guiding member comprises a latching portion. Each engaging member is received in the corresponding receiving hole. One end of the elastic member resists against the guiding member, such that the engaging member is latched by the latching portion and partly protrudes out from the receiving hole. | 05-08-2014 |
20140165813 | CABLE PEELING AND CUTTING DEVICE - A cable peeling and cutting device comprises a mounting plate, a cutting mechanism, a first peeling member, and a second peeling member. The cutting mechanism comprises a driver mounted on the mounting plate, a first and second connecting rod connected to the driver, a first connecting member connected to the first connecting rod, and a second connecting member connected to the second connecting rod. First cutters, second cutters, and third cutters are mounted to the first connecting member and the second connecting member. A distance between two third cutters is less than a distance between two first cutters and two second cutters. The first and second peeling members are movably mounted on the mounting plate and capable of moving towards and away from third cutters each other. | 06-19-2014 |
20140174224 | TRANSMISSION MECHANISM - A transmission mechanism includes a screw mandrel and a transmission assembly. The transmission assembly includes a first transmission member, a fixing member, a second transmission member, a first magnetic member, and a second magnetic member. The first transmission member is screwed with the screw mandrel. The fixing member is fixedly-connected to the first transmission member. The second transmission member is screwed with the screw mandrel and resisting against the fixing member to avoid rotating relative to the first transmission member. The first magnetic member is fixedly mounted on the fixing member. The second magnetic member is fixedly mounted on the first transmission member towards the first magnetic member to interact with the first magnetic member. | 06-26-2014 |
20140174887 | FEEDING MECHANISM - A feeding mechanism includes a supporting bracket; assembled to the supporting bracket; and a handling assembly. The handling assembly includes a pair of first handling subassemblies and a pair of first handling subassemblies. Each first handling subassembly includes a first guiding rod, a first elastic member, and a first handling member. The first guiding rod is slidably mounted on the supporting bracket, the first handling member is connected to the first guiding rod and the second guiding rod, the first elastic member is resisted between the first handling member and the supporting bracket. The second handling subassembly has a structure same as the first handling subassembly except that the guiding rod of the second handling subassembly has a length greater than that of the first guiding rod. The driving assembly is configured for driving the first handling member and the second handling member toward the supporting bracket. | 06-26-2014 |
20140256496 | CYCLOIDAL PINWHEEL SPEED REDUCER - A cycloid pinwheel speed reducer includes a first housing, two cycloidal gears, a plurality of rollers, an output shaft, a second housing, a mounting frame, an input gear, a transmission gear, and a first transmission shaft. The mounting frame includes a mounting portion, a first eccentric portion, and a second eccentric portion. The cycloidal gears are respectively sleeved on the first eccentric portion and the second eccentric portion. The second housing is sleeved on the mounting portion. The rollers are sandwiched between the second housing and the cycloidal gears. The transmission gear is rotatably mounted within the mounting portion and sleeved on the first transmission shaft, and meshes with the input gear and the first housing. | 09-11-2014 |
20140309068 | CYCLOID PINWHEEL REDUCER - A cycloid pinwheel reducer includes a housing, two cycloid pinwheels, a plurality of rollers, an output flange, and a first transmission assembly. The housing forms an inner teeth ring in an inner wall of the housing. The two cycloid pinwheels are received in the housing. Each cycloid pinwheel forms a meshing portion. The rollers roll in position between the housing and the meshing portions. The output flange is non-rotatably connected with the cycloid pinwheels. The first transmission assembly includes a first transmission gear, a second transmission gear meshed with the first transmission gear. The second transmission gear includes a base body, a second teeth portion positioned on the base body, a first eccentric portion, and a second eccentric portion. The second teeth portion is meshed with the first transmission gear. The two cycloid pinwheels is sleeved on the first and second eccentric portions respectively. | 10-16-2014 |
Patent application number | Description | Published |
20120286217 | METHODS FOR MITIGATING AGGLOMERATION OF CARBON NANOSPHERES USING EXTRACTION - Novel methods for manufacturing carbon nanostructures (e.g., carbon nanospheres) that are highly dispersed include forming a precursor composition, polymerizing the precursor composition, extracting water from the polymerized carbon material using an organic solvent, and carbonizing the polymerized material (e.g., through pyrolysis) to form the carbon nanostructures. The extraction-treated polymerized carbon material forms carbon nanostructures that are less agglomerated than carbon nanostructures manufactured using a similar technique without solvent extraction of water. | 11-15-2012 |
20140171693 | Coated Hydrotalcite Catalysts and Processes for Producing Butanol - A catalyst composition for converting ethanol to higher alcohols, such as butanol, is disclosed. The catalyst composition comprises metal coated hydrotalcite and method of making same. | 06-19-2014 |
20140171695 | Catalysts and Processes for Producing Butanol - A catalyst composition for converting ethanol to higher alcohols, such as butanol, is disclosed. The catalyst composition comprises at least one alkali metal, at least a second metal and a support. The second metal is selected from the group consisting of palladium, platinum, copper, nickel, and cobalt. The support is selected from the group consisting of Al | 06-19-2014 |
20140171696 | Catalysts and Processes for Producing Butanol - In one embodiment, the invention is to a catalyst composition for converting ethanol to higher alcohols, such as butanol. The catalyst composition comprises one or more metals and one or more supports. The one or more metals selected from the group consisting of cobalt, nickel, palladium, platinum, zinc, iron, tin and copper. The one or more supports are selected from the group consisting of Al | 06-19-2014 |
20140179958 | CATALYSTS AND PROCESSES FOR PRODUCING BUTANOL - In one embodiment, the invention is to a process for producing a catalyst composition for converting ethanol to higher alcohols, such as butanol. The process comprises contacting magnesium carbonate with one or more metal precursors to form a catalyst intermediate and calcining the catalyst intermediate to form the catalyst composition that comprises the one or more metals and magnesium oxide. The one or more metal precursors comprises one or more metal selected from the group consists of nickel, palladium, platinum, germanium, copper, ruthenium, gallium, tin, iridium, and mixtures thereof. | 06-26-2014 |
20140275636 | Catalysts For Forming Diethyl Ether - A process is disclosed for producing of diethyl ether by dehydrating ethanol in the presence of an inventive catalyst. A preferred catalyst achieves high conversions of ethanol and high selectivites to diethyl ether. The diethyl ether may be used as a solvent, fuel additive, or fuel. | 09-18-2014 |
Patent application number | Description | Published |
20130017345 | SIMULATED PLANT DECORATIVE FABRIC OR WEBAANM Zhang; ChengAACI ZhejiangAACO CNAAGP Zhang; Cheng Zhejiang CN - The present invention relates to a plant simulation decorative cloth/mesh, comprising a cloth or mesh, the simulation plant on one or both sides of the cloth or mesh being sewn to the cloth or mesh. Advantages: (1) The present invention creates a precedent for the stereoscopic plant simulation cloth/mesh, expanding the applications and uses of the cloth; 2. the present invention not only can decorate a variety of body surface with a stereoscopic sense, but also achieves a stereoscopic simulation greening and shading effect of the city, home, garden, roofing, garage, seaside resort and specific places, creating a decorative effect with green leaves, flowers and fruits; 3. the present invention not only enjoys high manufacturing efficiency, low cost, and convenient transport by folding, but also avoids the phenomenon that the green leaves, flowers and fruits come off at their roots from the cloth or mesh because of the reliable flexibility and folding performance of the cloth/mesh used for connection of the green leaves, flowers and fruits, resulting no environmental pollution, characterized by firm and reliable connection, both beautifying the environment and achieving the sun-shading purpose. | 01-17-2013 |