Patent application number | Description | Published |
20090020271 | APPARATUS AND METHOD FOR THERMAL MANAGEMENT USING VAPOR CHAMBER - An apparatus includes a plurality of islands each carrying multiple cantilevers. The apparatus also includes a fluidic network having a plurality of channels separating the islands. The channels are configured to provide fluid to the islands, and the fluid at least partially fills spaces between the cantilevers and the islands. Heat from the islands vaporizes the fluid filling the spaces between the cantilevers and the islands to transfer the heat away from the islands while driving the cantilevers into oscillation. The apparatus may also include a casing configured to surround the islands and the fluidic network to create a vapor chamber, where the vapor chamber is configured to retain the vaporized fluid. The islands and the fluidic network could be formed in a single substrate, or the islands could be separate and attached together by a binder located within the channels of the fluidic network. | 01-22-2009 |
20090114090 | ADSORPTIVE GAS SAMPLER USING IONIC NANO-DROPLETS - A gas sampling canister has an electrospray nozzle for creating an ionic fluid electrospray plume. A gas sample is intake positioned to provide a gas sample flowing through the ionic fluid electrospray plume. A cooled counter electrode is positioned to collect the electrospray plume such that selected chemicals in the gas sample are captured by ionic fluid accumulating on the cooled counter electrode. A system and method for sampling gas are also described. | 05-07-2009 |
20090235817 | ADSORPTIVE GAS SAMPLER USING IONIC NANO-DROPLETS - An air scrubber, system, and method of use are provided. The air scrubber includes an electrospray nozzle for creating an ionic fluid electrospray plume; an air sample intake positioned to provide an air sample interacting with the ionic fluid electrospray plume; and a counter electrode positioned to collect the electrospray plume. The selected chemicals in the air sample are captured by ionic fluid electrospray plume and accumulate on the counter electrode. | 09-24-2009 |
20090288807 | BLOWERLESS HEAT EXCHANGER BASED ON MICRO-JET ENTRAINMENT - A blowerless heat exchanger apparatus based on micro-jet entrainment is disclosed. The heat exchanger apparatus incorporates a number of fins regularly spaced apart from each other and parallel to each other, thus letting air currents flow in the space defined between them. A dense array of micro-jet nozzles can be fabricated on the fins surface pointing to the flow direction of the air movement in order to induce increase airflow. The air from an air compressor delivers sufficient airflow on the fins surface utilizing micro-jets entrainment. The micro-jet entrainment confirms strong turbulent around the micro-jets and suggests significant heat transfer enhancement. The turbulence from the micro-jets enhance the heat transfer coefficient, potentially by an order of magnitude, therefore allowing much larger fin spacing and leads to huge reduction of flow resistance and overall power consumption. | 11-26-2009 |
20090290305 | ENTRAINMENT HEATSINK USING ENGINE BLEED AIR - An entrainment heatsink system and method using distributed micro jets. Such a system and/or method utilize a pressurized primary flow through arrays of micro nozzles to entrain a much larger secondary flow to carry heat away from the heatsink. The bleed air from an aircraft engine represents an ideal pressurized air source for the primary flow with respect to such a heatsink. As such, the needed high-pressure primary flow is very small and can be delivered via thin air hoses, which has the flexibility to reach constraint spaces. In addition to the entrainment effect, the distributed micro jets also induce a high level of turbulence in the heatsink, significantly enhancing heat transfer and cooling performance. | 11-26-2009 |
20100034704 | MICROFLUIDIC CARTRIDGE CHANNEL WITH REDUCED BUBBLE FORMATION - A microfluidic cartridge may have a microfluidic channel that is configured to reduce or eliminate bubble formation in liquids disposed within or flowing through the microfluidic channel. In some cases, the microfluidic channel may be considered as having a channel surface, and a polymeric coating or film may be disposed on the channel surface to help reduce or eliminate bubble formation in liquids disposed within or flowing through the channel. In some cases, the polymer coating or film may be formed from a block copolymer having a hydrophobic portion that bonds to the channel surface and a hydrophilic portion that reduces surface tension of the channel surface. | 02-11-2010 |
20100101301 | GAS PULSE GENERATOR FOR BASELINE DRIFT CORRECTION AND RELATED SYSTEM AND METHOD - A method includes acquiring a chemical sample and modulating the chemical sample at a frequency greater than a drift frequency of a sensor. The method also includes determining at least one of a presence and a concentration of the analyte within the modulated chemical sample using the sensor. Modulating the chemical sample could include alternately absorbing at least some of the analyte into a sorbent material and releasing at least some of the analyte from the sorbent material. Modulating the chemical sample could also include heating the sorbent material, absorbing part of the analyte into the sorbent material, and passing a remaining portion of the analyte into the sensor. Modulating the chemical sample could further include stopping the heating of the sorbent material, releasing the part of the analyte from the sorbent material, and passing the sample with the released part of the analyte into the sensor. | 04-29-2010 |
20100104479 | SURFACE PREPARATION FOR A MICROFLUIDIC CHANNEL - A microfluidic cartridge having a microfluidic channel may have at least one surface that has been roughened, etched or otherwise treated to alter its surface characteristics. In some instances, a microfluidic cartridge may have a microfluidic channel that is configured to provide even distribution of a lysing reagent across the channel. The surface may be roughened or etched using a laser, an abrasive, application of a solvent or in any other suitable manner. | 04-29-2010 |
20100226765 | RADIAL TURBOMOLECULAR PUMP WITH ELECTROSTATICALLY LEVITATED ROTOR - A radial turbomolecular pump comprising an electrostatically levitated rotor with a high compression ratio and pump speed at a chip-scale level. The levitated rotor can be sandwiched between a stator plate and a driver and multiple concentric rings of microblades can be fabricated on the rotor plate and the stator plate. The center portions of the driver and the base plate include concentric ring electrodes for rotor levitation by electrostatic forces. The space between two concentric rings of microblades forms a groove that is wide enough to receive the microblades from the opposing disk. The stator disk can be fixed and the rotor disk spins such that the rotor microblades move tangentially relative to the stator microblades. The microblades can be tilted at an angle from the tangent, facilitating momentum transfer to gas molecules in the radial direction. | 09-09-2010 |
20100300286 | APPROACHES FOR REMOVING CO2, SO2 AND OTHER GASEOUS CONTAMINATES FROM GAS EMISSIONS - Air scrubbers and approaches for removing CO | 12-02-2010 |
20100317970 | GAS SUPERSATURATION MONITORING - A system and method include generating at least one bubble in tissue using ultrasound. The at least one bubble generated is detected and correlated to gas saturation of the tissue. | 12-16-2010 |
20110030925 | APPARATUS AND METHOD FOR THERMAL MANAGEMENT USING VAPOR CHAMBER - An apparatus includes a plurality of islands each carrying multiple cantilevers. The apparatus also includes a fluidic network having a plurality of channels separating the islands. The channels are configured to provide fluid to the islands, and the fluid at least partially fills spaces between the cantilevers and the islands. Heat from the islands vaporizes the fluid filling the spaces between the cantilevers and the islands to transfer the heat away from the islands while driving the cantilevers into oscillation. The apparatus may also include a casing configured to surround the islands and the fluidic network to create a vapor chamber, where the vapor chamber is configured to retain the vaporized fluid. The islands and the fluidic network could be formed in a single substrate, or the islands could be separate and attached together by a binder located within the channels of the fluidic network. | 02-10-2011 |
20110139974 | ION-TRAP MASS SPECTROMETER DRIVEN BY A MONOLITHIC PHOTODIODE ARRAY - A chip-scale ion-trap mass spectrometer driven by a monolithic photodiode array and a method of fabricating the same. A high-voltage photovoltaic source is located in proximity to the ion-trap mass spectrometer structure. The high-voltage photovoltaic source includes monolithically fabricated and serially connected photodiodes. An external light source illuminates the photodiodes to generate a high voltage across the photodiode array. An RF voltage modulation is attained by modulating the light source at a desired RF frequency. The high-voltage photodiode array may be monolithically fabricated in association with the ion-trap mass spectrometer. The photodiode array requires a small area compared to the ion-trap mass spectrometer size as the spectrometer typically possess a very small capacitance and a low power consumption. | 06-16-2011 |
20120017759 | ULTRASOUND-ASSISTED ELECTROSPRAY IONIC LIQUID FOR CARBON DIOXIDE CAPTURE - A system includes an ultrasound wave generator, a fluid cavity coupled to the ultrasound wave generator, an array of micro-machined ultrasonic-assisted electrospray nozzles coupled to the fluid cavity, an electrode configured to impart a charge onto the fluid output of the electrospray nozzles, and a carbon dioxide release unit configured to receive the ionic liquid after absorption of carbon dioxide by the ionic liquid and to remove carbon dioxide from the ionic liquid such that the regenerated ionic liquid can be recycled for additional carbon dioxide capture. | 01-26-2012 |