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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8078309 | Method to create arbitrary sidewall geometries in 3-dimensions using liga with a stochastic optimization framework Disclosed herein is a method of making a three dimensional mold comprising the steps of providing a mold substrate; exposing the substrate with an electromagnetic radiation source for a period of time sufficient to render the portion of the mold substrate susceptibl... | 12/13/2011 |
| 8057283 | Method of fabricating a whispering gallery mode resonator A method of fabricating a whispering gallery mode resonator (WGMR) is provided. The WGMR can be fabricated from a particular material, annealed, and then polished. The WGMR can be repeatedly annealed and then polished. The repeated polishing of the WGMR can be carri... | 11/15/2011 |
| 8047472 | Ram booster The present invention is a space launch system and method to propel a payload bearing craft into earth orbit. The invention has two, or preferably, three stages. The upper stage has rocket engines capable of carrying a payload to orbit and provides the capability of... | 11/01/2011 |
| 8026768 | Hg co-magnetometer for Hg trapped ion space atomic clocks Local magnetic field strength in a trapped ion atomic clock is measured in real time, with high accuracy and without degrading clock performance, and the measurement is used to compensate for ambient magnetic field perturbations. First and second isotopes of an elem... | 09/27/2011 |
| 8022860 | Enchanced interference cancellation and telemetry reception in multipath environments with a single paraboic dish antenna using a focal plane array An Advanced Focal Plane Array (“AFPA”) for parabolic dish antennas that exploits spatial diversity to achieve better channel equalization performance in the presence of multipath (better than temporal equalization alone), and which is capable of receiving from t... | 09/20/2011 |
| 7996112 | Robot and robot system A robot and robot system that are capable of functioning in a zero-gravity environment are provided. The robot can include a body having a longitudinal axis and having a control unit and a power source. The robot can include a first leg pair including a first leg an... | 08/09/2011 |
| 7850861 | Microfluidic device, and related methods A method of making a microfluidic device is provided. The method features patterning a permeable wall on a substrate, and surrounding the permeable wall with a solid, non-permeable boundary structure to establish a microfluidic channel having a cross-sectional dimen... | 12/14/2010 |
| 7843650 | Monolithic afocal telescope An afocal monolithic optical element formed of a shallow cylinder of optical material (glass, polymer, etc.) with fast aspheric surfaces, nominally confocal paraboloids, configured on the front and back surfaces. The front surface is substantially planar, and this l... | 11/30/2010 |
| 7824247 | Portable rapid and quiet drill A hand-held drilling device, and method for drilling using the device, has a housing, a transducer within the housing, with the transducer effectively operating at ultrasonic frequencies, a rotating motor component within the housing and rigid cutting end-effector r... | 11/02/2010 |
| 7809521 | Precise delay measurement through combinatorial logic A high resolution circuit and method for facilitating precise measurement of on-chip delays for FPGAs for reliability studies. The circuit embeds a pulse generator on an FPGA chip having one or more groups of LUTS (the “LUT delay chain”), also on-chip. The circu... | 10/05/2010 |
| 7773362 | Accelerator system and method of accelerating particles An accelerator system and method that utilize dust as the primary mass flux for generating thrust are provided. The accelerator system can include an accelerator capable of operating in a self-neutralizing mode and having a discharge chamber and at least one ionizer... | 08/10/2010 |
| 7773121 | High-resolution, continuous field-of-view (FOV), non-rotating imaging system A high resolution CMOS imaging system especially suitable for use in a periscope head. The imaging system includes a sensor head for scene acquisition, and a control apparatus inclusive of distributed processors and software for device-control, data handling, and di... | 08/10/2010 |
| 7764384 | Swept frequency laser metrology system A swept frequency laser ranging system having sub-micron accuracy that employs multiple common-path heterodyne interferometers, one coupled to a calibrated delay-line for use as an absolute reference for the ranging system. An exemplary embodiment uses two laser het... | 07/27/2010 |
| 7749341 | Precipitation hardenable high temperature shape memory alloy A composition of the invention is a high temperature shape memory alloy having high work output, and is made from (Ni+Pt+Y)xTi(100-x), wherein x is present in a total amount of 49-55 atomic %, Pt is present in a total amount of 10-30 atomic %, ... | 07/06/2010 |
| 7740088 | Ultrasonic rotary-hammer drill A mechanism for drilling or coring by a combination of sonic hammering and rotation. The drill includes a hammering section with a set of preload weights mounted atop a hammering actuator and an axial passage through the hammering section. In addition, a rotary sect... | 06/22/2010 |
| 7732706 | Solar cell circuit and method for manufacturing solar cells The invention is a novel manufacturing method for making multi-junction solar cell circuits that addresses current problems associated with such circuits by allowing the formation of integral diodes in the cells and allows for a large number of circuits to readily b... | 06/08/2010 |
| 7729047 | Method of shifting and fixing optical frequency of an optical resonator, and optical resonator made by same A method of shifting and fixing an optical frequency of an optical resonator to a desired optical frequency, and an optical resonator made by such a method are provided. The method includes providing an optical resonator having a surface and a refractive index, and ... | 06/01/2010 |
| 7715994 | Process for using surface strain measurements to obtain operational loads for complex structures The invention is an improved process for using surface strain data to obtain real-time, operational loads data for complex structures that significantly reduces the time and cost versus current methods. ... | 05/11/2010 |
| 7711455 | Propulsion controlled aircraft computer A low-cost, easily retrofit Propulsion Controlled Aircraft (PCA) system for use on a wide range of commercial and military aircraft consists of an propulsion controlled aircraft computer that reads in aircraft data including aircraft state, pilot commands and other ... | 05/04/2010 |
| 7665891 | Differential temperature sensor system and method A differential temperature sensor system and method of determining a temperature shift of an optical resonator and its surroundings are provided. The differential temperature sensor system includes a light generating device capable of generating a beam having a carr... | 02/23/2010 |
| 7629181 | Molecular tag reader Near-infrared molecular assays can be used to detect small quantities of a molecule of interest in vivo or in vitro using laser dyes. A hand-held portable device is provided which can rapidly read small quantities of selected molecular tags in tissues of fish or oth... | 12/08/2009 |
| 7592747 | Piezoelectrically enhanced photocathode A photocathode, for generating electrons in response to incident photons in a photodetector, includes a base layer having a first lattice structure and an active layer having a second lattice structure and epitaxially formed on the base layer, the first and second l... | 09/22/2009 |
| 7590313 | Phased-array optical whispering gallery mode modulation and method A whispering gallery mode (WGM) resonator device and method capable of filtering sidebands of optical modulators are provided. The method includes providing an optical resonator adapted to support whispering gallery modes and forming a first field and a second field... | 09/15/2009 |
| 7583169 | MEMS switches having non-metallic crossbeams A RF MEMS switch comprising a crossbeam of SiC, supported by at least one leg above a substrate and above a plurality of transmission lines forming a CPW. Bias is provided by at least one layer of metal disposed on a top surface of the SiC crossbeam, such as a layer... | 09/01/2009 |
| 7574137 | Multi-wavelength time-coincident optical communications system and methods thereof An optical communications transmitter includes a oscillator source, producing a clock signal, a data source, producing a data signal, a modulating circuit for modulating the clock signal using the data signal to produce modulating signals, optical drivers, receiving... | 08/11/2009 |
| 7570850 | WGM resonators for studying orbital angular momentum of a photon, and methods An optical system, device, and method that are capable of generating high-order Bessel beams and determining the orbital angular momentum of at least one of the photons of a Bessel beam are provided. The optical system and device include a tapered waveguide having a... | 08/04/2009 |
| 7535634 | Optical device, system, and method of generating high angular momentum beams An optical device, optical system, and method of generating optical beams having high angular momenta are provided. The optical device includes a whispering gallery mode resonator defining a resonator radius and an elongated waveguide having a length defined between... | 05/19/2009 |
| 7534519 | Symmetrical, bi-electrode supported solid oxide fuel cell The present invention is a symmetrical bi-electrode supported solid oxide fuel cell comprising a sintered monolithic framework having graded pore electrode scaffolds that, upon treatment with metal solutions and heat subsequent to sintering, acquire respective anodi... | 05/19/2009 |
| 7520176 | Method for real-time structure shape-sensing The invention is a method for obtaining the displacement of a flexible structure by using strain measurements obtained by stain sensors. By obtaining the displacement of structures in this manner, one may construct the deformed shape of the structure and display sai... | 04/21/2009 |
| 7515786 | White-light whispering gallery mode optical resonator system and method An optical resonator system and method that includes a whispering-gallery mode (WGM) optical resonator that is capable of resonating across a broad, continuous swath of frequencies is provided. The optical resonator of the system is shaped to support at least one wh... | 04/07/2009 |
| 7501636 | Nanotunneling junction-based hyperspectal polarimetric photodetector and detection method A photodetector, detector array, and method of operation thereof in which nanojunctions are formed by crossing layers of nanowires. The crossing nanowires are separated by a few nm thick electrical barrier layer which allows tunneling. Each nanojunction is coupled t... | 03/10/2009 |
| 7501046 | Solar distillation loop evaporation sleeve An evaporation sleeve is placed within a solar distillation loop apparatus to increase the amount of water evaporated by the apparatus. The evaporation sleeve is rotationally attached within the above ground portion of the solar distillation loop so the sleeve lifts... | 03/10/2009 |
| 7480984 | Method of suppressing sublimation in advanced thermoelectric devices A method of applying a physical barrier to suppress thermal decomposition near a surface of a thermoelectric material including applying a continuous metal foil to a predetermined portion of the surface of the thermoelectric material, physically binding the continuo... | 01/27/2009 |
| 7477741 | Analysis resistant cipher method and apparatus A system for encoding and decoding data words including an anti-analysis encoder unit for receiving an original plaintext and producing a recoded data, a data compression unit for receiving the recoded data and producing a compressed recoded data, and an encryption ... | 01/13/2009 |
| 7431243 | Guidance and control for an autonomous soaring UAV The present invention provides a practical method for UAVs to take advantage of thermals in a manner similar to piloted aircrafts and soaring birds. In general, the invention is a method for a UAV to autonomously locate a thermal and be guided to the thermal to grea... | 10/07/2008 |
| 7424832 | Cable tensiometer for aircraft The invention is a cable tensiometer that can be used on aircraft for real-time, in-flight cable tension measurements. The invention can be used on any aircraft cables with high precision. The invention is extremely light-weight, hangs on the cable being tested and ... | 09/16/2008 |
| 7407131 | Method for creating an aeronautic sound shield having gas distributors arranged on the engines, wings, and nose of an aircraft The present invention blocks and/or attenuates the upstream travel of acoustic disturbances or sound waves from a flight vehicle or components of a flight vehicle traveling at subsonic speed using a local injection of a high molecular weight gas. Additional benefit ... | 08/05/2008 |
| 7385462 | Wideband radial power combiner/divider fed by a mode transducer A radial power combiner/divider capable of a higher order (for example, N=24) of power combining/dividing and a 15% bandwidth (31 to 36 GHz). The radial power combiner/divider generally comprises an axially-oriented mode transducer coupled to a radial base. The mode... | 06/10/2008 |
| 7353768 | Underwater vehicle propulsion and power generation An underwater vehicle includes a shaft with a propeller disposed thereon; a generator/motor having a stator and a rotor, the rotor being operable to rotate with the propeller; at least one energy storage device connected to the generator/motor; and a controller for ... | 04/08/2008 |
| 7323869 | Subranging scheme for SQUID sensors A readout scheme for measuring the output from a SQUID-based sensor-array using an improved subranging architecture that includes multiple resolution channels (such as a coarse resolution channel and a fine resolution channel). The scheme employs a flux sensing circ... | 01/29/2008 |
