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Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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| Number | Title | Issue Date |
| 6176453 | Radiator using thermal control coating A spacecraft has internal structure which generates heat, and a radiator element in thermal communication with the spacecraft internal structure. The radiator element has a radiating surface and a coating on the radiating surface including a white thermal... | 01/23/2001 |
| 6152402 | Dual spin zero momentum satellite system An attitude control system for a spacecraft which includes a bearing power and transfer assembly. The bearing power and transfer assembly is disposed between a first body and a second body. The first body and the second body are counter-rotated with respe... | 11/28/2000 |
| 6150990 | Method for reducing cross-polar degradation in multi-feed dual offset reflector antennas A unique feed structure for improving the cross-polarization performance of a reflector antenna system is disclosed. According to the present invention, the feed structure is an array including a number of feeds, which are rotated in a predetermined fashi... | 11/21/2000 |
| 6149103 | Free return lunar flyby transfer method for geosynchronous satellites havint multiple perilune stages A method is provided for using at least two lunar flyby maneuvers to transfer a satellite from a quasi-geosynchronous transfer orbit having a high inclination to a final geosynchronous orbit having a low inclination. The invention may be used to take the ... | 11/21/2000 |
| 6145790 | Attitude determination system and method An attitude sensing system utilizing simplified techniques and apparatus includes a spacecraft control processor which receives signals from an inertial measurement unit and two attitude sensors. The spacecraft control processor calculates a time-varying ... | 11/14/2000 |
| 6137813 | Yb-doped fiber laser operating near EDFA absorption band A Yb-doped fiber laser uses a homogeneously-broadened material. The disclosed laser design is particularly advantageous for operating the fiber laser between 970-980 nm and using this output as a pump for an Er-doped fiber amplifier (EDFA) having an absor... | 10/24/2000 |
| 6124378 | (Zinc, cadmium, magnesium) aluminate-gallate-containing organic-binder paint and film articles An article is a liquid or solid mixture of a plurality of particles and a binder. The article may be a paint or a freestanding film. The particles have a composition A[xAl(1-x)Ga]2 O4+γ (δIn), wherein A is zinc, magnesium, and/or c... | 09/26/2000 |
| 6119986 | Thin-film solar reflectors and methods Flexible, lightweight reflective sheets are positioned to concentrate solar radiation upon spacecraft solar panels. The sheets are positioned with inner and outer spring members which urge each sheet towards a planar configuration and further urge the she... | 09/19/2000 |
| 6118911 | Waveguide switch matrix using junctions matched in only one state A waveguide switch matrix is disclosed. The switch matrix includes a number of input waveguides that may be selectably connected to a number of output waveguides. A switch apparatus is provided at the intersection of each input waveguide and each output w... | 09/12/2000 |
| 6118246 | Phase synchronization of redundant motor windings A method and system (10) for simultaneous operation of primary (14A-14D) and redundant (16A-16D) motor windings in a redundant stepper motor (12). The redundant motor system (10) has a control circuit (11) including a phase synchronizer (36) for establish... | 09/12/2000 |
| 6116545 | Free return lunar flyby transfer method for geosynchronous satellites A method is provided for using a lunar flyby maneuver to transfer a satellite from a quasi-geosynchronous transfer orbit having a high inclination to a final geosynchronous orbit having a low inclination. The invention may be used to take the inclination ... | 09/12/2000 |
| 6113033 | Combined flywheel energy storage and attitude control apparatus for spacecraft An apparatus for storing energy and actuating the attitude of a spacecraft includes a first gimbaled flywheel assembly having a first rotor rotating in a first direction, and a second gimbaled flywheel assembly having a second rotor rotating in a second d... | 09/05/2000 |
| 6111472 | Quasi-optical amplifier A launch quasi-optical amplifier including a photonic bandgap crystal, designed to operate within a specific frequency range. The photonic bandgap crystal is populated with active devices that are coupled to the alternate layers, or defects, in the crysta... | 08/29/2000 |
| 6104262 | Ridged thick walled capacitive slot A capacitive coupler for a microwave circuit that has a first cavity and a second cavity separated by a wall. The separating wall has an aperture that, due to its shape, is capacitive. The aperture has a pair of elongated walls separated by a pair of side... | 08/15/2000 |
| 6099637 | (Zinc,cadmium,magnesium) aluminate-gallate-containing paints and their use on spacecraft A paint is a liquid or solid mixture of a plurality of particles and an inorganic binder such as a silicate. The particles have a composition A[xAl(1-x)Ga]2 O4&#b1;γ (δIn), wherein A is zinc, magnesium and/or cadmium, the value of ... | 08/08/2000 |
| 6091934 | Dynamic power allocation system and method for multi-beam satellite amplifiers The new signal amplifiers dynamically adjust based on the signal's power level. When used on multi-beam satellites, increased signal power indicates an increase in traffic on the channel. The power level of the input signal is sensed and converted to a DC... | 07/18/2000 |
| 6078287 | Beam forming network incorporating phase compensation A beam-forming network having a network of phase shifting devices that is independent from other parts of the beam-forming network. In one embodiment, the network of phase shifting devices has multiple layers between the power divider and power combiner l... | 06/20/2000 |
| 6072438 | Full dynamic range reflectarray element A reflectarray antenna for achieving increased dynamic phase range has a plurality of dipole elements positioned across the antenna surface. The elements include a single dipole element having a predetermined length that is approximately proportional to t... | 06/06/2000 |
| 6066992 | Variable ISO attenuator using absorptive/reflective elements and latching A variable absorptive/reflective high power attenuator for attenuating microwave signals in a communication system is formed from a circulator connected to a section transmission line such as a waveguide, having at least one adjustable tuning element conn... | 05/23/2000 |
| 6064108 | Integrated interdigitated capacitor An integrated, interdigitated capacitor incorporates all layers of an I.C. fabrication process into its design to produce a multi-layer high-capacitance device. For example, a "two-metal, two-poly" CMOS fabrication process is used to produce a capacitor h... | 05/16/2000 |
| 6058023 | Isolation of high-voltage components in a dense environment An electronic component operating at high voltage is mounted to the top side of an insulating platform, which in turn is supported from a chassis by a pedestal. The insulating platform provides a long surface path conduction distance of the electronic com... | 05/02/2000 |
| 6057748 | Methods of tuning and temperature compensating a variable topography electromagnetic wave device An electromagnetic wave component uses one or more diaphragms secured to the interior of a waveguide structure to tune its resonant frequency, with each diaphragm engaged by one or more adjustment members that deform it. The adjustment members are prefera... | 05/02/2000 |
| 6052095 | Dual gridded reflector antenna An improved dual gridded reflector antenna configuration which allows cross-polarization radiation to be scanned in any given direction. The dual-gridded reflector assembly includes a front parabolic reflector illuminated by a first source, and a second p... | 04/18/2000 |
| 6046658 | Microwave filter having cascaded subfilters with preset electrical responses A microwave filter has first and second subfilters. Each subfilter has at least one single mode resonator and a preset electrical response. The second subfilter is cascaded to the first subfilter by coupling one of the at least one single mode resonator o... | 04/04/2000 |
| 6046556 | Motor current sensing circuit A motor current sensing circuit using a single sensing resistor in the motor current path to sense the current from the voltage source. The circuit includes an amplifier and a unity-gain inverter that translate the current across the sensing resistor into... | 04/04/2000 |
| 5889487 | Flash analog-to-digital converter with latching exclusive or gates The number of input latching comparators in a flash analog-to-digital converter is significantly reduced by merging the input latching function into exclusive OR gates used in the converter's decoding section. A latching exclusive OR gate used for this pu... | 03/30/1999 |
| 5839696 | Modular payload arrangement A modular payload structure providing standardized thermal, electrical and mechanical interfaces. The modular arrangement of the present invention has fixed radiator panels that have standard thermal and mechanical interfaces, allowing communication modul... | 11/24/1998 |
| 5833175 | Spacecraft with large east-west dimensions A spacecraft body configuration having east and west sides which are greater in length than the body's north and south sides. The east and west sides each have antennas which extend from one end of each of said east and west sides to the other end of each... | 11/10/1998 |
| 5826831 | Satellite co-location methods A geostationary orbital box is divided by radially-oriented planes to form orbital sub-boxes. A thruster system facilitates station keeping satellites in each of these orbital sub-boxes. The thruster system includes thruster pairs that are positioned on a... | 10/27/1998 |
| 5823476 | Device and method for equalizing heat dissipation between multiple radiators on a spacecraft Device and method for more equally distributing heat dissipation between multiple radiators of a satellite. The device includes radiator panels mounted on the satellite, power sources mounted on some or all of the radiator panels, and loads capable of inh... | 10/20/1998 |
| 5823477 | Device and method for minimizing radiator area required for heat dissipation on a spacecraft Device and method for minimizing radiator area required for heat dissipation on a satellite. The device includes radiator panels with heat pipes embedded throughout. The embedded heat pipes have flanges that protrude from the plane of the surface of the r... | 10/20/1998 |
| 5820078 | Control motion gyro with vibration isolation A control moment gyro having a housing enclosing a spinning momentum wheel. A rocking plate circumscribes the housing and is compliantly connected thereto by a set of isolator struts and non-contacting actuators which isolate the rocking plate from the in... | 10/13/1998 |
| 5813633 | Method and apparatus for stationkeeping a satellite offset by pitch rotation A method of stationkeeping for a three-axis stabilized satellite having four thrusters mounted in a generally rectangular configuration on an anti-nadir face of the satellite, each of the four thrusters having a line of thrust which passes through the cen... | 09/29/1998 |
| 5774030 | Parallel axis cylindrical microwave filter A microwave filter includes two resonant cylindrical cavities aligned in parallel along their longitudinal axes, with the cavities offset by one half the cavities' resonant wavelength with respect to one another. Signals to be filtered are coupled into a ... | 06/30/1998 |
