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| Number | Title | Issue Date |
| 8177475 | Contaminant-deflector labyrinth seal and method of operation A seal assembly for deflecting contaminated fluid flowing through the seal assembly from an upstream space to a downstream space includes an annular housing, at least one vent hole peripherally disposed on the annular housing, a first set of seals disposed within th... | 05/15/2012 |
| 8174801 | Controlling arc energy in a hybrid high voltage DC contactor A high voltage direct current (HVDC) power distribution system comprises at least one power bus; at least one load conductor; and a hybrid contactor for interconnecting the at least one power bus and the at least one load conductor and through which inductive energy... | 05/08/2012 |
| 8174159 | Optimized multi-phase armature winding An electrical motor or generator asymmetrical armature winding configuration generating a multi-phase balanced power output. Each winding group for each pole, and the conductors constituting each winding group, are chosen individually according to their magnetomotiv... | 05/08/2012 |
| 8168077 | Refrigerant compositions and use thereof in low temperature refrigeration systems A refrigerant composition. The composition has 25 to 35 mass % difluoromethane, 20 to 40 mass % pentafluoroethane, and 35 to 45 mass % tetrafluoroethane. The composition exhibits a positive superheat at an evaporation temperature of about −30° F. There is also a ... | 05/01/2012 |
| 8159344 | Microwave motion detectors utilizing multi-frequency ranging and target angle detection A method of detecting a moving target within a predefined protected region with a microwave motion detector, by transmitting microwave frequency signals and receiving the microwave frequency signals reflected by a target. A target distance is then determined from th... | 04/17/2012 |
| 8148848 | Solid state power controller (SSPC) used as bus tie breaker in electrical power distribution systems The present invention provides an electrical power distribution system that includes a first primary distribution panel (PDP) connected to a first source of electrical power and a second PDP connected to a second source of electrical power. The second PDP is connect... | 04/03/2012 |
| 8147197 | Turbine blade platform A turbine blade assembly is provided. The turbine blade assembly comprises a turbine blade comprising a cavity, and a blade platform supporting the turbine blade, the cavity extending into the blade platform. The blade platform comprises an upper surface adjacent th... | 04/03/2012 |
| 8146358 | Bearing health monitor A turbocharger monitor including a sensor adapted and positioned with respect to a turbocharger housing to sense passing compressor blades, generating both rotor rotation information and rotor displacement information. A controller is configured to receive the gener... | 04/03/2012 |
| 8135893 | System, apparatus and method for granting access to a shared communications bus Systems, apparatuses and methods for timing access to a shared communications bus by a plurality of devices. Each of a plurality of nodes is successively provided an opportunity to gain access to a shared bus according to a time slot allocation referenced from a tim... | 03/13/2012 |
| 8134344 | Regulation control for variable frequency generators A variable frequency generator regulation control circuit and method for controlling open loop gain under changing generator speed conditions employing a high frequency pulse-width modulated signal with a duty cycle that is controlled such that variations in rectifi... | 03/13/2012 |
| 8134268 | Wound field electrical machine flat braided wire main rotor crossover assembly A high speed aircraft generator may utilize a prefabricated crossover subassembly to interconnect field coils. The crossover may include two attachment leads interconnected with a section of braided wire. The braided wire may remain free of brazing filler metal afte... | 03/13/2012 |
| 8132494 | Ballistic resistant composite article having improved matrix system An impact resistant rigid composite article comprising a fibrous layer comprising a network of filaments dispersed in a rigid matrix comprising one or more thermosetting resins and one or more thermoplastic resins which preferably include one or more initiating/comp... | 03/13/2012 |
| 8127552 | Transition scrolls for use in turbine engine assemblies An engine assembly includes a combustor having a combustion chamber in which an air and fuel mixture is combusted to produce combustion gases. The engine assembly further includes a transition scroll coupled to the combustor for receiving the combustion gases. The t... | 03/06/2012 |
| 8125217 | Magnetoresistive array design for improved sensor-to-magnet carrier tolerances An AMR array magnetic position sensing method and system for improving sensor-to-magnet carrier misposition. A magnetic carrier can be provided, which maintains two or more magnets with angled magnetic vectors position above an array of AMR array sensors. The magnet... | 02/28/2012 |
| 8122781 | Generator shear gear A shear gear arrangement with gear teeth on the bearing liner positioned to engage complementary teeth on a shear gear main body. The bearing liner is static, while the shear gear main body mounts on the rotating drive shaft. If a failure occurs, the drive shaft dis... | 02/28/2012 |
| 8122724 | Compressor including an aerodynamically variable diffuser A compressor includes a diffuser, a recirculation duct, and a flow control valve. The recirculation duct has an inlet in fluid communication with the air outlet of the diffuser, and an outlet in fluid communication with the air inlet of the diffuser. The flow contro... | 02/28/2012 |
| 8121036 | Wireless mesh network for inter-component data communications in satellite systems A network system for inter-component communications in an electronic device is disclosed. The system comprises a plurality of components for an electronic device, where each of the components communicates with at least one other component over a communications mediu... | 02/21/2012 |
| 8115444 | Common mode filter for motor controllers A motor drive circuit has a converter for coupling to an AC voltage source and an inverter coupled to the converter for providing a drive current for a motor. A common mode circulation loop is coupled to the converter and to the inverter, and circulates common mode ... | 02/14/2012 |
| 8114198 | Cross ship architecture for dispatch critical fuel tank inerting system A fuel tank inerting system uses two “half systems” for providing inerting gas for the fuel tanks. Each inerting system may be composed of a temperature control and air pressurization unit (TCPU) and an air separation unit (ASU). A cross-ship duct and valve allo... | 02/14/2012 |
| 8109715 | Variable nozzle turbocharger There is provided a turbocharger with a variable nozzle assembly having a plurality of cambered vanes positioned annularly around a turbine wheel, each vane (20) being pivotable around a pivot point (Pp) and being configured to have a leading edge (Ple) and a... | 02/07/2012 |
| 8108171 | Systems and methods for calibration of gyroscopes and a magnetic compass Calibration systems and methods simultaneously calibrate a magnetic compass and gyroscopes. An exemplary embodiment rotates the field calibration system. Based upon the rotation sensed by the magnetic compass and the gyroscopes, the field calibration system determin... | 01/31/2012 |
| 8107989 | Apparatus and method for transmit power control in a wireless network A method includes repeatedly transmitting messages from a first wireless node at a transmit power. The method also includes receiving feedback from a second wireless node, where the feedback is based on a quality of reception of at least some of the messages at the ... | 01/31/2012 |
| 8097968 | Position-controlled start from the AC line using a synchronous machine A synchronous electric machine operates as a starter-generator for an aircraft. When operating in a starting mode, a main stator of the machine is supplied with electrical power at a constant frequency. An exciter stator is supplied with variable frequency power. As... | 01/17/2012 |
| 8093747 | Aircraft electrical power system architecture using auxiliary power unit during approach and taxi An electrical power system architecture uses an auxiliary power unit as an electrical power source during taxi (ground idle) and approach idle (if required). Using the APU as a power source enables a low pressure spool driven electrical generator to be off-line when... | 01/10/2012 |
| 8090824 | Gateway data proxy for embedded health management systems A gateway data proxy is a system which provides the capabilities to provide and obtain the customized data across multiple platforms to facilitate the remote operations of embedded health management systems (EHMS). The system allows the collaborative works taken pla... | 01/03/2012 |
| 8087619 | Active control stick assembly including traction drive An active control stick assembly. In one embodiment, the active control stick assembly includes a housing assembly, a control stick coupled to the assembly housing for rotation about at least a first rotational axis, a first artificial force feel (AFF) motor dispose... | 01/03/2012 |
| 8085004 | Generator with quadrature AC excitation A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime mover, the generator system provides relatively constant frequency AC power by independently controlling th... | 12/27/2011 |
| 8084726 | Control system for an exoatmospheric kill vehicle A control system for a maneuverable kill vehicle is provided. The control system includes a pressurized fluid source configured to provide a pressurized fluid, a valve in fluid communication with the pressurized fluid source, and a voice coil actuator comprising a m... | 12/27/2011 |
| 8084653 | Method for producing fluorinated organic compounds Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF3CF═CH2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl2═CClCH2 | 12/27/2011 |
| 8058876 | Low cost current and temperature sensor A battery health or prognosis system may employ a ferrite disc embedded in a printed wiring board (PWB) to perform both a battery current sensing role and a temperature sensing role. The ferrite disc may be surrounded with a coil that may be comprised of surface con... | 11/15/2011 |
| 8058850 | Overload control of an electric power generation system with unknown availability of mechanical power capacity A control system for an electrical power generation system (EPGS) provides overload protection without disconnecting a generator of the EPGS from an excessive electrical load. Available engine power and current levels of the electrical load are continuously measured... | 11/15/2011 |
| 8051317 | Power supply with remotely adjustable output A power supply system allowing remote adjustments of the power output of the power supply unit without having to physically access the power supply unit itself is disclosed. A power supply system in accordance with the present invention utilizes a central processing... | 11/01/2011 |
| 8039612 | Synthesis of oligonucleotides or phosphorothioate oligonucleotide with a capping agent of N-methylimidazole free of 1,3,5-trimethylhexahydro-1,3,5-triazine According to the present invention, there is provided a process for making an oligonucleotide or a phosphorothioate oligonucleotide. The process has the following steps: (a) providing an amount of a blocked nucleotide; (b) deblocking the blocked nucleotide to form a... | 10/18/2011 |
| 8034308 | Multi-stage multi-tube shell-and-tube reactor A multi-stage, multi-tube, shell-and-tube reactor which contains reaction zones and interstage temperature control (cooling/heating) zones in series. The reactor has at least two types of zones which both contribute to removing or supplying heat to the system depend... | 10/11/2011 |
| 8028351 | Protective garments and gasket system for firefighter's and other emergency personnel A gasket system (18) is provided for use with a protective boot (12) and a pant leg (16) of a protective garment (14) for a firefighter or other emergency worker. The boot (12) includes an outer boot (24) and a moisture/vapo... | 10/04/2011 |
| 8016551 | Reverse curved nozzle for radial inflow turbines A nozzle for radial inflow turbines having an outer surface having a concave shape, and an inner surface having a non-concave, i.e. straight or convex, shape. Also a leading edge may have a hole that is capable of receiving a fastener to secure the nozzle vane to an... | 09/13/2011 |
| 8007202 | Protective marine barrier system A system to protect structures in a marine environment from the effects of an impact force. The system includes a plurality of floatable devices (panels) and a plurality of fibrous networks. The fibrous networks include high tenacity fibers which extend at least in ... | 08/30/2011 |
| 8000084 | High voltage electrolytes A method for reducing pressure build-up in an electrochemical cell is provided comprising: providing an anhydrous nonaqueous electrolyte solution comprising at least one quaternary ammonium salt and at least one anhydrous nonaqueous solvent; contacting the electroly... | 08/16/2011 |
| 7994371 | Process for making chlorotrifluoroethylene from 1,1,2-trichlorotrifluoroethane Disclosed is a process for the making chlorotrifluoroethylene. The process comprises the step of reacting 1,1,2-trichlorotrifluoroethane with a reducing metal in the presence of a polar aprotic solvent under conditions sufficient to form chlorotrifluoroethylene.... | 08/09/2011 |
| 7994075 | Low weight and high durability soft body armor composite using topical wax coatings Ballistic resistant articles having abrasion resistance. Particularly, abrasion resistant, ballistic resistant articles and composites having a wax-based topical treatment. ... | 08/09/2011 |
