| The Trustees of Dartmouth College Patent applications |
| Patent application number | Title | Published |
|---|
| 20110278417 | System And Methods For Smoothly Inverting One Or More Faces Of A Cubical Device - A system and method for inverting a cubical device | 11-17-2011 |
| 20110256601 | MODIFICATION OF HYDROGENASE ACTIVITIES IN THERMOPHILIC BACTERIA TO ENHANCE ETHANOL PRODUCTION - Bacteria consume a variety of biomass-derived substrates and produce ethanol. Hydrogenase genes have been inactivated m | 10-20-2011 |
| 20110149281 | ROTARYFROG SYSTEMS AND METHODS - Systems and methods determining amplitude and phase versus frequency of an incoming beam of pulsed laser light. An apparatus is set to an initial configuration to split the incoming beam into two beams of substantially equal intensity, delay one of the two split beams for a delay period t and recombine the two split beams to form a recombined beam. The recombined beam shines onto a thick SHG crystal at rotation angle θ and light emitted from the thick SHG crystal is detected as data and stored with reference to the delay period t and the angle θ. The thick SHG crystal is rotated by an angle δθ and the steps of splitting, delaying, recombining, shining, detecting, storing, and rotating are repeated until the thick SHG crystal has completed 360° of rotation. The delay period is increased by δt and the steps of splitting, delaying, recombining, shining, detecting, storing, rotating, repeating and increasing are repeated until a selected beam delay period range has been completed. The stored data is processed to determine amplitude and phase versus frequency of the incoming beam of pulsed laser light. | 06-23-2011 |
| 20110079631 | Joining Of Parts Via Magnetic Heating Of Metal-Aluminum Powders - A method of joining at least two parts includes steps of dispersing a joining material comprising a multi-phase nanocrystalline magnetic metal-aluminum powder at an interface between the at least two parts to be joined and applying an alternating magnetic field (AMF). The AMF has a magnetic field strength and frequency suitable for inducing magnetic hysteresis losses in the metal-aluminum powder and is applied for a period that raises temperature of the metal-aluminum powder to an exothermic transformation temperature. At the exothermic transformation temperature, the metal-aluminum powder melts and resolidifies as a metal aluminide solid having a non-magnetic configuration. | 04-07-2011 |
| 20110041967 | Eutectic Alloys of the Type FE 25-35 NI 15-25 MN 30-40 AL 10-20 M 0-5 and Methods for Production Thereof - Alloys, formed by a eutectic transformation of the type Fe25-35 Ni15-25 Mn30-40 Al10-20 MO-5, are disclosed. M is selected from chromium, molybdenum, carbon and combinations thereof. The alloys have high strength and ductility. The alloys are prepared from readily available transition metals, and can be used in applications where properties similar to steel are necessary or advantageous. | 02-24-2011 |
| 20110034806 | Systems And Methods For Combined Ultrasound And Electrical Impedance Imaging - A dual imaging probe | 02-10-2011 |
| 20100299615 | System And Method For Injecting Sensed Presence Into Social Networking Applications - A method for injecting sensed presence into social networking applications includes receiving sensor data associated with a user ( | 11-25-2010 |
| 20100075363 | Recombinant Yeast Strains Expressing Tethered Cellulase Enzymes - Recombinant yeast strains that saccharify, ferment and grow on insoluble and crystalline forms of cellulose are disclosed herein. The yeast strains express tethered cellulases including cellobiohydrolase, endoglucanase and β-glucosidase. The recombinant organisms are particularly suited for consolidated bioprocessing. | 03-25-2010 |
| 20100039124 | Molecularly Imprinted Polymer Sensor Systems And Related Methods - A molecularly imprinted polymer (MIP) sensor including a substrate, two or more electrodes, a conductive layer applied to the substrate and a molecularly imprinted polymer layer applied to the conductive layer is disclosed herein The MIP sensor may form part of an MIP sensor system that can be used to detect and quantify target molecules. | 02-18-2010 |
| 20100021177 | System And Method For Imaging Objects Through Turbid Media - A method for imaging objects through turbid media includes generating a repetitive pulsed light beam under control of a pulse shaper, propagating the light beam through turbid media, and receiving and imaging the light beam at a sensor. Propagation through turbid media causes scattering of the light, and the sensor captures scattered pulses to produce an image. The pulse shaper controls pulse width, frequency, repetition rate and chirp of the generated light pulses according to a feedback signal received from the sensor, to improve image quality. A system for imaging objects through turbid media includes a laser for generating a light beam; a pulse shaper for controlling said light beam, and a sensor, in communication with the pulse shaper, for capturing the image of said light beam through a turbid medium. Pulse width is less than 250 femtoseconds to reduce attenuation of the light beam through the turbid medium. | 01-28-2010 |
| 20100015282 | Conversion Of Soybean Hulls To Ethanol And High-Protein Food Additives - Soybean hull fermentation methods that produce food additives having a high protein content are disclosed. The protein is generally present as unhydrolyzed and non-racemized protein that possesses a complete amino acid profile. The food additive is suitable for consumption by a wide variety of animals, including humans. | 01-21-2010 |
| 20090250449 | System And Method For Deicing Of Power Line Cables - A system and method for deicing power transmission cables divides the cable into sections. Switches are provided at each end of a section for coupling the conductors together in parallel in a normal mode, and at least some of the conductors in series in an anti-icing mode. When the switches couple the conductors in series, an electrical resistance of the cable section is effectively increased allowing self-heating of the cable by power-line current to deice the cable; the switches couple the conductors in parallel for less loss during normal operation. In an alternative embodiment, the system provides current through a steel strength core of each cable to provide deicing, while during normal operation current flows through low resistance conductor layers. Backup hardware is provided to return the system to low resistance operation should a cable overtemperature state occur. | 10-08-2009 |
| 20090247847 | SYSTEMS AND METHODS FOR TOMOGRAPHIC IMAGE RECONSTRUCTION - Optical tomography systems that provide light of multiple distinct wavelengths from a plurality of sources are described. The systems direct light into mammalian tissue, and light from the mammalian tissue is collected at a plurality of reception points. Collected light from each reception point is separated according to its wavelength, and received by a photodetector to produce path attenuation signals representing attenuation along paths between the source locations and the reception points. An image construction system generates a tomographic image of the mammalian tissue from the path attenuation signals. One embodiment of an optical imaging system includes an optical coherence tomography-near infrared probe. The systems and methods may utilize a spectral derivative approach that provides insensitivity to the boundary and boundary artifacts in the signal, thereby improving the quality of the reconstructed images. | 10-01-2009 |
| 20090239277 | Thermophillic Organisms For Conversion Of Lignocellulosic Biomass To Ethanol - Mutant thermophilic organisms that consume a variety of biomass derived substrates are disclosed herein. Strains of | 09-24-2009 |
| 20090235682 | Pulse Electrothermal Mold Release Icemaker With Safety Baffles For Refrigerator - An icemaker and a refrigerator having an icemaker are discussed. The icemaker has pulse-electrothermal ice release and includes an ice-making tray having several ice forming portions in which water is stored and ice is formed; and a housing surrounding the ice-making tray provided with at least one cold air inlet and/or ice ejection port through which cold air is supplied and ice released along a bent channel. The cold air inlet and/or ice ejection ports are baffled to prevent contact with a user's fingers and thereby reduce the possibility of electric shock. | 09-24-2009 |
| 20090235681 | Pulse Electrothermal Mold Release Icemaker For Refrigerator Having Interlock Closure And Baffle For Safety - The present document relates to an icemaker having a pulse electrothermal ice release system for separating ice bodies from an ice mold. The pulse electrothermal ice release system operates by applying an electric current through the ice mold through two wires. Safety apparatus for preventing electric shock to users of the icemaker is described. A refrigerator having the icemaker, and an operating method of the icemaker are disclosed. In an embodiment, the safety apparatus interrupts current flow through both wires. | 09-24-2009 |
| 20090188658 | Compact Helical Heat Exchanger With Stretch To Maintain Airflow - A heat exchanger for exchanging heat between gasses such as air and a liquid or gaseous coolant has narrow spacing between exchanger surfaces for high efficiency. To avoid undue obstruction of gas flow due to ice buildup on the exchanger surfaces, the heat exchanger is equipped with sensors to monitor the gas flow and an actuator that widens the spacing between exchanger surfaces such that gas flow remains unimpeded. Embodiments provide for defrosting of the exchanger surfaces when an limit on spacing of exchanger surfaces is reached, and for relaxing the spacing to the original narrow spacing when defrosting is completed. | 07-30-2009 |
| 20090050800 | ELECTRONIC TIME-OF-FLIGHT MASS SELECTOR - A method of selecting ions includes generating a group of ions, accelerating the group of ions through a flight region towards an electronic mass selector grid, and selectively varying a voltage applied to the electronic mass selector grid, such that only a selected subset of the group of ions passes through the grid. An apparatus for selecting ions includes an ion generator, an ion accelerator for accelerating ions into a flight region, and an electronic mass selector grid responsive to an applied voltage to pass a subset of the ions from the flight region. An apparatus for detecting a threat molecule includes an ion generator for generating ions from a mixed gas stream, an ion accelerator for accelerating the ions into a flight region, and an electronic mass selector grid. The grid passes only a subset of the ions, such as ions and/or ionized fragments of the threat molecule. | 02-26-2009 |
| 20090017503 | Method and Apparatus for Saccharide Precipitation From Pretreated Lignocellulosic Materials - A method for separating saccharide components and lignin fractions from a concentrated acid treated lignocellulosic biomass is disclosed. The method involves precipitating the saccharide components by adding an organic solvent to the biomass slurry. The acid may then be recovered, for example, by filtration or by countercurrent washing and the organic solvent may be flashed and recycled. During acid recovery and organic recovery steps, two main lignocellulose components (hemicellulose and lignin) as well as minor components such as acetic acid are separated as well. The method decreases the amount of cellulase required for hydrolysis, increases hydrolysis rates, reduces formation of inhibitor molecules, increase sugar yields, produces high value by-products such as high quality lignin and hemicellulose, and decreases energy and equipment costs. | 01-15-2009 |
| 20080223842 | Systems And Methods For Windshield Deicing - Cost efficient, lightweight and rapid windshield deicing systems and methods are disclosed. The systems utilize step-up converters or inverters, or dual-voltage batteries, to provide a voltage high enough to deice a windshield in less than thirty seconds. | 09-18-2008 |
| 20080196429 | Pulse Electrothermal And Heat-Storage Ice Detachment Apparatus And Method - Systems and methods for pulse electrothermal and heat-storage ice detachment. A pulse electrothermal ice detachment apparatus includes one or more coolant tubes, and optionally, fins in thermal contact with the coolant tubes. The tubes and/or fins form a resistive heater. Apparatus applies electrical power to the resistive heater, generating heat to detach ice from the tubes and/or the fins. A freezer unit forms a heat-storage icemaking system having a compressor and a condenser for dissipating waste heat, and coolant that circulates through the compressor, the condenser and a coolant tube. The coolant tube is in thermal contact with an evaporator plate. A tank, after the compressor and before the condenser, transfers heat from the coolant to a heating liquid. The heating liquid periodically flows through a heating tube in thermal contact with the evaporator plate, detaching ice from the evaporator plate. | 08-21-2008 |
