Patent application number | Description | Published |
20100080683 | SYSTEMS AND METHODS FOR PROTECTING A WIND TURBINE IN HIGH WIND CONDITIONS - Systems for protecting a wind turbine in high wind conditions are disclosed. A shrouded turbine may have an ejector shroud disposed adjacent and downstream of a turbine shroud. In one version, the ejector shroud can move to surround the turbine shroud. In another version, the turbine can be pivoted on a support tower to cover the intake end of the turbine and rotate the turbine about an axis at a right angle to the tower axis. In another version, the turbine is supported by a telescoping tower which may be retracted to lower the turbine in high winds. In another version, the tower sections may be connected by a pivotable connection and supported by guy wire(s) which may be lengthened to lower the upper tower section pivotally. | 04-01-2010 |
20110123392 | ULTRASOUND AND ACOUSTOPHORESIS FOR WATER PURIFICATION - Provided herein are systems and methods for separation of particulate from water using ultrasonically generated acoustic standing waves. | 05-26-2011 |
20110278218 | Ultrasound and Acoustophoresis Technology for Separation of Oil and Water, with Application to Produce Water - Several prototype systems are described for separating oil and water from emulsions. The systems operate at ultrasonic resonance and are thus low power. Each system contains one or more acoustic transducers operating in the 100 kHz to 5 MHz range. Each system contains flow input for the emulsion and two or more flow outputs for the separated oil and water. Existing prototypes operate from 200 mL/min to >15 L/min. Each uses low power in the range of 1-5 W. | 11-17-2011 |
20120325727 | HIGH-VOLUME FAST SEPARATION OF MULTI-PHASE COMPONENTS IN FLUID SUSPENSIONS - A flow chamber is provided through which is flowed a mixture of a fluid and a particulate. The flow chamber comprises at least one multi-phase water inlet through which multi-phase water enters the flow chamber, a water outlet through which water exits the flow chamber, a solids outlet through which particles having a density at or above a pre-defined threshold exit the flow chamber, and a low density outlet through which particles having a density below the pre-defined threshold exit the flow chamber. Also provided are one or more ultrasonic transducers and one or more reflectors corresponding to each transducer to acoustically filter the fluid and cause particles/fluid to be selectively diverted to one of the outlets. Related apparatus, systems, techniques and articles are also described. | 12-27-2012 |
20120325747 | COMBINED ACOUSTIC MICRO FILTRATION AND PHONONIC CRYSTAL MEMBRANE PARTICLE SEPARATION - A system is provided that includes one or more acoustic microfilters through which is flowed a mixture of a fluid and a particulate to selectively filter particles from the fluid. Also included are one or more phononic crystal units coupled to the acoustic microfilter(s) to further selectively filter particles from the fluid. Related apparatus, systems, techniques and articles are also described. | 12-27-2012 |
20120328477 | ULTRASONIC AGGLOMERATION OF MICROALGAE - Systems are provided with varying flow chamber configurations which acoustically agglomerate microorganisms such as algae for separation from a host fluid such as water. Related apparatus, systems, techniques and articles are also described. | 12-27-2012 |
20120329122 | ULTRASOUND AND ACOUSTOPHORESIS FOR COLLECTION AND PROCESSING OF OLEAGINOUS MICROORGANISMS - Microorganisms such as microalgae are collected and separated from a host medium such as water. Cellular walls and membranes of the microorganisms are then ruptured to release their lipids using a lipid extraction unit. Thereafter, the lipids from the host medium are collected and separated using a lipid collection and separation unit. Related apparatus, systems, techniques and articles are also described. | 12-27-2012 |
20130284271 | ACOUSTOPHORETIC MULTI-COMPONENT SEPARATION TECHNOLOGY PLATFORM - A system having improved trapping force for acoustophoresis is described where the trapping force is improved by manipulation of the frequency of the ultrasonic transducer. The transducer includes a ceramic crystal. The crystal may be directly exposed to fluid flow. The crystal may be air backed, resulting in a higher Q factor. | 10-31-2013 |
20140080207 | ULTRASOUND AND ACOUSTOPHORESIS FOR COLLECTION AND PROCESSING OF OLEAGINOUS MICROORGANISMS - Microorganisms such as microalgae are collected and separated from a host medium such as water. Cellular walls and membranes of the microorganisms are then ruptured to release their lipids using a lipid extraction unit. Thereafter, the lipids from the host medium are collected and separated using a lipid collection and separation unit. Related apparatus, systems, techniques and articles are also described. | 03-20-2014 |
20140154795 | BIOREACTOR USING ACOUSTIC STANDING WAVES - A perfusion bioreactor includes at least one ultrasonic transducer that can acoustically generate a multi-dimensional standing wave. The standing wave can be used to retain cells in the bioreactor, and can also be utilized to dewater or further harvest product from the waste materials produced in a bioreactor. | 06-05-2014 |
20140190889 | COMBINED ACOUSTIC MICRO FILTRATION AND PHONONIC CRYSTAL MEMBRANE PARTICLE SEPARATION - A system is provided that includes one or more acoustic microfilters through which is flowed a mixture of a fluid and a particulate to selectively filter particles from the fluid. Also included are one or more phononic crystal units coupled to the acoustic microfilter(s) to further selectively filter particles from the fluid. Related apparatus, systems, techniques and articles are also described. | 07-10-2014 |
20140202876 | ULTRASOUND AND ACOUSTOPHORESIS FOR WATER PURIFICATION - Provided herein are systems and methods for separation of particulate from water using ultrasonically generated acoustic standing waves. | 07-24-2014 |
20140319077 | EXCIPIENT REMOVAL FROM PHARMACOLOGICAL SAMPLES - Active pharmaceutical ingredients can be separated from their excipients by dissolving a pharmaceutical product (e.g. tablet, pill) into a solvent, then running the solution through an acoustophoretic device. Standing waves are used to separate the excipient from the active ingredient dissolved in the solvent. | 10-30-2014 |
20140377834 | FLUID DYNAMIC SONIC SEPARATOR - An acoustic standing wave is utilized to separate components from a multi-component fluid, such as animal cells from fluid-cell mixture, in a fluid flow scheme with an acoustophoresis device. For example, the flow scheme and device allows for trapping of falling cells as the cells coalesce, agglomerate, and the weight of the agglomerated mass overcomes the drag and ultrasonic standing wave forces in the device. | 12-25-2014 |