Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8060338 | Estimation of global position of a sensor node Methods and apparatuses for locating a sensor node are disclosed. A representative apparatus, among others, includes a processing unit that receives sensor node data and object trajectory information data for an object. The sensor node data is related to the object'... | 11/15/2011 |
| 7967456 | Scalable size deformable pocket mirror with on-pocket bimorph actuator The invention includes a deformable mirror for use in adaptive and active optical systems and in optical technology laser communication directed energy systems. The invention utilizes pockets formed in the back of the mirrors substrate. The pockets house actuators t... | 06/28/2011 |
| 7860635 | Singular value decomposition-based method for optimal estimation of turbofan engine thrust and other unmeasurable parameters A new linear point design technique is presented for the determination of tuning parameters that enable the optimal estimation of unmeasured engine outputs such as thrust. The engine's performance is affected by its level of degradation, generally described in terms... | 12/28/2010 |
| 7812303 | Method and system for creating an image using quantum properties of light based upon spatial information from a second light beam which does not illuminate the subject A preferred embodiment comprises a method and system for generating an image of a subject or area comprising a processor; at least one incoherent light source which illuminates the subject or area; a first receiver for receiving light reflected from the subject or a... | 10/12/2010 |
| 7734122 | Multimode interference device with side input/output ports A multimode interference device and a method of configuring the same comprises a multimode interference region having a major axis; and a plurality of ports connected to a side portion of the multimode interference region, wherein the side portion is positioned in a... | 06/08/2010 |
| 7733484 | Hyperspectral scene projection/generation systems and methods Embodiments of hyperspectral scene projection/generation systems and methods are disclosed. One method embodiment, among others, comprises dispersing a beam of light at one of a plurality of selectable wavelengths, the beam of light corresponding to a scene, and dis... | 06/08/2010 |
| 7730839 | Interfacial stress reduction and load capacity enhancement system An article and a process are provided for reducing the shear stress on an interface of a structural member in intimate contact with a compressive load. The article is in the form of a wedge that is forcibly placed against the sidewall of one end or both ends of the ... | 06/08/2010 |
| 7707004 | Locating ferromagnetic objects in a single pass A ferromagnetic object is located by moving magnetic sensors along a path in an area of detection; using the sensors to measure a total magnetic field in the area of detection; using the sensors to measure all three vector components of magnetic field as the sensors... | 04/27/2010 |
| 7656159 | Locating stationary magnetic objects A technique for locating stationary magnetic objects comprises placing magnetic sensors on a movable platform; for each sensor, measuring a total magnetic field signal in an area of detection; using the sensors to identify a line upon which a target stationary magne... | 02/02/2010 |
| 7609971 | Electro optical scanning multi-function antenna An multi-beam multifunction electro optical scanning antenna having a first variable wavelength tunable laser having an output wavelength variable within a first range and a second variable wavelength tunable laser having an output wavelength variable within a secon... | 10/27/2009 |
| 7593587 | Spectral feature generation using high-pass filtering for scene anomaly detection A method of detecting an image anomaly (target) within a scene represented by image data comprises obtaining test data from a test window within the scene, combining the test data with reference data to generate combined data, then comparing the combined data with e... | 09/22/2009 |
| 7576837 | Micro-mirror optical tracking and ranging system A micro-mirror optical tracking and ranging system comprises an optical transceiver having a Micro-Electro-Optical Mechanical System (MEOMS) micro-mirror beam steering system and an electronic control and operating system for processing electronic signals. An optica... | 08/18/2009 |
| 7535617 | Portable acousto-optical spectrometers A portable acousto-optical (AO) spectrometer system comprised of at least one AO crystal cell device specially designed for cancellation of side-lobe noise at a desired tuned wavelength of operation. Each AO crystal cell device has a transducer attached and forms an... | 05/19/2009 |
| 7524579 | Non-aqueous solvent electrolyte battery with additive alkali metal salt of a mixed anhydride combination of oxalic acid and boric acid A method for enhancing the performance characteristics of a battery through the use of the electrolyte composition comprised of a non-aqueous solvent, and a salt mixture. The salt mixture includes an alkali metal electrolyte salt and an additive salt having an anion... | 04/28/2009 |
| 7483501 | System and method for radio receiver RF background noise estimation A system and method of estimating radio frequency (RF) background noise in a radio receiver system comprises determining a total receiver front-end noise based on a noise equivalent receiver bandwidth; estimating external noise associated with the radio receiver sys... | 01/27/2009 |
| 7454110 | Method of constructing a reconfigurable photonic band gap device A method for constructing a reconfigurable photonic band gap device having a substrate and a crystal membrane with a lattice structure having its ends attached to a substrate so that a midportion of the lattice membrane is spaced upwardly from the substrate and form... | 11/18/2008 |
| 7426156 | Method and apparatus for clock synchronization that accounts for curvature in the space-time continuum Methods and apparatuses for applying a correction that accounts for curvature in the space-time continuum in the context of clock synchronization are disclosed. A representative apparatus, among others, includes a memory having a curved space-time correction module ... | 09/16/2008 |
| 7409899 | Optical detection and location of gunfire Disclosed is an optical gunfire detection system comprising an image-capturing device operable for detecting light; a narrowband Fraunhofer line filter connected to the image-capturing device, and operable for partially restricting transmission of the light; a conve... | 08/12/2008 |
| 7412020 | Training for time-selective wireless fading channels using cutoff rate The optimal allocation of resources—power and bandwidth—between training and data transmissions is considered for time-selective Rayleigh flat-fading channels under the cutoff rate criterion. The transmitter, assumed to have statistical channel state information... | 08/12/2008 |
| 7411401 | Systems and methods for reducing common-mode platform noise in electric-field sensors Systems and methods for reducing electrostatic platform noise in electric-field sensors due to various self-charging and discharging processes are provided. A representative method includes: identifying avoidance regions of an electrostatically-floating sensor platf... | 08/12/2008 |
| 7409015 | Adaptive modulation scheme based on cutoff rate with imperfect channel state information A cutoff rate may be used to determine an optimal binary input distribution for a communications system which operates with imperfect receiver channel state information (CSI) at the receiver. First, the cutoff rate may be evaluated and used to analyze the optimal bi... | 08/05/2008 |
| 7348201 | Creation of anisotropic strain in semiconductor quantum well Methods and devices for creating an anisotropic strain in a semiconductor quantum well structure to induce anisotropy thereof are disclosed herein. Initially, a substrate is provided, and a quantum well structure formed upon the substrate. A first crystalline layer ... | 03/25/2008 |
| 7153475 | Aerosol particle analyzer for measuring the amount of analyte in airborne particles Aerosol particle analyzer (APA) for measuring the amount of analyte in airborne particle is described. The APA uses an analysis liquid. In most embodiments, this analysis liquid is chosen so that when it is mixed with the particles, an optical property of the analys... | 12/26/2006 |
| 7147818 | Process and apparatus for improved composite fiber volume fraction and dimensional stability by removal of accumulated excess resin using the vacuum assisted resin transfer molding (VARTM) process A vacuum assisted resin transfer molding (VARTM) process wherein a preform, release film, distribution medium layer, resin inlet(s), vacuum outlet(s), and vacuum bag(s) are positioned on a mold. After the resin has fully impregnated the preform by a vacuum process, ... | 12/12/2006 |
| 7129465 | Electronically code-multiplexed readout of photo-detector arrays Methods and apparatus for generating a code-multiplexed readout value of photocurrents for a photo-detector array of cells are disclosed. Readout values are determined using a multiplexer and current amplifier for each cell and a current-to-voltage converter for eac... | 10/31/2006 |
| 7126687 | Method and instrumentation for determining absorption and morphology of individual airborne particles Characterizing individual airborne particles in real time according to their absorption of optical energy at one or more wavelengths. The instrument can measure the two-dimensional angular optical scattering (TAOS) and/or the one-dimensional angular optical scatteri... | 10/24/2006 |
| 7125518 | Aerosol particle analyzer for measuring the amount of analyte in airborne particles Aerosol particle analyzer (APA) for measuring the amount of analyte in airborne particle is described. The APA uses an analysis liquid. When this analysis liquid is mixed with the particles, an optical property of the analysis liquid (CDAL) varies according to the a... | 10/24/2006 |
| 5298796 | Nonvolatile programmable neural network synaptic array A floating-gate MOS transistor is implemented for use as a nonvolatile analog storage element of a synaptic cell used to implement an array of processing synaptic cells based on a four-quadrant analog multiplier requiring both X and Y differential inputs,... | 03/29/1994 |
| 4867041 | Vortex amplifier driven actuator spool A hollow cylindrical amplifier driven actuator spool has first and second vortex chambers divided by an internal piston. A shaft is attached to the pistion and extends out the cylinder. Fluid logic controls the fluid flow in the vortex chambers so that th... | 09/19/1989 |
| 4866669 | Electronic memory device utilizing silicon-on-sapphire transistors An electronic memory device is disclosed which utilizes silicon-on-sapphire SOS) transistors that exhibit binary states dependent upon the dose of ionizing radiation to which they are subjected. A memory utilizing such SOS transistors may have information ... | 09/12/1989 |
| 4864258 | RF envelope generator A microwave rf envelope generator or pulse shaper has a main waveguide with two opposing branches connected in shunt to the main waveguide and are terminated with variable positionable shorts. The characteristic impedance of the shunted combination of the... | 09/05/1989 |
| 4861397 | Fire-resistant explosives A fire resistant composition comprising an explosive in an amount of 41-85%, an additive selected from the group consisting of zinc borate, hexabromobiphenyl, molybdenum flame suppressant, triaryl phosphate ester, calcium formate, antimony oxide, ammonium... | 08/29/1989 |
| 4856338 | Technique for null balancing fluidic circuits A null balanced fluidic sensing system that is less susceptible to pressure upply disturbances includes sensing and amplifying elements in a closed loop arrangement. The differential output of the sensor, developed as a result of an input stimulus, is fed ... | 08/15/1989 |
| 4852496 | Charging and detonation device for submunition An environmental charging and detonation system for submunitions has an arnator in which a firing pin or rotor shaft is used for safing and arming, stab detonation, as well as the rotor for the alternator. A ram air actuated ribbon is deployed during sub... | 08/01/1989 |
| 4850260 | Apparatus for reduction of munition fratricide hazard Shields of tungsten-plastic composite material are strategically disposed termediate neighboring rounds of ammunition containing highly sensitive cyclotol explosive. The shield's shape and composite structure permit the rounds to be more closely stored in... | 07/25/1989 |
| 4850229 | Ballistics pressure transducer The invention involves the design of a miniaturized piezoelectric pressure ransducer used for measuring pressure-time characteristics in gun tubes during the propellant ignition and burning process. The transducer utilizes a Z-cut tourmaline crystal as the... | 07/25/1989 |
| 4845995 | Material tester A material tester which allows for material characterization under hydrodmic loading including very high rates of loading such as found in ballistic applications, and which includes various interchangeable fittings to allow the tester to simultaneously s... | 07/11/1989 |
| 4841868 | Composite long rod penetrator A composite long rod penetrator formed from depleted uranium and titanium s a longitudinal hardness gradient created by reinforcing the long rod with tungsten wire filaments. The longitudinal hardness gradient increases in hardness from a minimum value at... | 06/27/1989 |
| 4841864 | Controlled explosively formed penetrator A method and apparatus for controlling the final shape of an explosively formed penetrator, in which a liner is explosively accelerated to high velocity to impact upon a mandrel and form a penetrator whose final shape, surface and mass distributions about... | 06/27/1989 |
| 4838142 | Regenerative electrical igniter for a liquid propellant gun An electrical igniter for a regenerative liquid propellant gun is disclosed hich includes a combustion chamber for receiving a charge of liquid gun propellant, an electrode for igniting the liquid gun propellant, and a valve assembly for releasing the igni... | 06/13/1989 |
