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Security control and communication system and method
An integrated security control system and method which integrate the functions of a wireless security system control panel and a radio transceiver in an...
Heatsinking electronic devices
Method and apparatus are provided for thermally coupling one or more electronic devices to a heatsink. The apparatus comprises a heatsink having a substantially...
Method and system for providing single-phase excitation techniques to a
start exciter in a starter/generator system
A system and method is provided for starting a prime mover coupled to a synchronous starter/generator. The system includes an exciter converter that provides a...
The present invention provides a composition comprising: (a) thermosetling component comprising (1) optionally at least one monomer of Formula I as sel forth...
High strength and ultra-efficient oil coalescer
A coalescing assembly for coalescing entrained oil from a high temperature, high velocity gas stream comprises a coalescing element of compacted high temperature...
Damper including a stepper motor
A damper unit for an air circulation system. The damper unit includes a frame defining an air flow opening, a damper vane for opening and closing the air flow...
Offset bearing for extended fuel pump life
A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial...
Gas turbine high temperature turbine blade outer air seal assembly
A turbine shroud assembly includes forward and aft hangers, an axisymmetric plenum assembly, ceramic shroud segments, ceramic spacers, and forward and aft rope...
Heat exchanger with flow director
Heat exchangers, constructed in accordance with principles of this invention, comprise a plurality of first passages, for transporting a first fluid or gas...
Method and apparatus for controlling humidity with an air conditioner
Methods and apparatus for more effectively managing humidity of an inside space using an air conditioner are provided. In one illustrative embodiment, the system...
Control system for variable geometry turbocharger
A control system of this invention for use with a variable geometry turbocharger is designed to enable turbocharger control based solely on engine speed. The...
High accuracy fuel metering system for turbine engines
A fuel control system (10) in a turbine engine includes a centrifugal boost pump (20) that receives fuel from a fuel tank and increases the pressure of the fuel....
Detection system and method using thermal image analysis
Thermal image data of at least a region of a face of a person is provided. The thermal image data is used to determine a physiological state of a person, e.g.,...
Rectification system for improving power quality of electrical power
A system and method for an autotransformer configuration including a plurality of windings which can be used to provide a substantial reduction in harmonics. The...
Methods and systems for substrate surface evaluation
A method for determining a surface quality of a substrate sample using a differential interference contrast microscope is described. The microscope includes an...
System, apparatus, and method for driving light emitting diodes in low
A system, apparatus, and method for allowing LED operation in circuits operating with power supply levels that are below the forward voltage limits of the LED. A...
Gas turbine engine starter generator that selectively changes the number
of rotor poles
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a motor mode or an generator mode. The machine includes a...
Etched hole-fill stand-off
An assembly is disclosed that includes an etched hole-fill standoff; a tooling plate contacting the etched hole-fill stand-off, the stand-off and tooling plate...
Fixture and locator device for supporting a rotatable member
There is provided a locator device and an associated fixture and method for supporting a rotatable member. The locator device has a base and a plurality of...
Solid propellant gas generators in power systems
An emergency power system comprising a plurality of solid propellant gas generators each having a gas outlet in fluid communication with a turbine wheel...
A radar altimeter is provided that includes a transmitter operable to generate a radio signal at a modulation frequency, and transmit the radio signal toward a...
A getter is a porous sintered metallic alloy used to absorb non-inert gases. The getter is placed in a getter well of a ring laser gyroscope system or other gas...
Hand-held laser welder remote control console
A control console that is used in conjunction with a hand-held laser welding wand is adapted to couple to an electrically controllable filler media supply...
Manufacture of fluorinated alcohols
Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated...
Micro-machined electromechanical system (MEMS) accelerometer device having
arcuately shaped flexures
A method for suspending a movable structure form a support structure wherein first and second flat and thin arcuately shaped flexures are formed having spaced...
Light emitting photonic crystals
The invention relates to processes for the synthesis of 2-D and 3-D periodic porous silicon structures and composites with improved properties having the...
Waterjet propulsion apparatus
A waterjet propulsion apparatus having a five blade rotor and an eight blade stator that are located within housing sections that define a water flowpath. The...
Air turbine starter with unitary inlet and stator
An air turbine starter for use in aircraft or other gas turbine engine applications. In a particular embodiment, the air turbine starter has a titanium unitary...
Dual diaphragm valve
A valve for regulating the flow of fluids (gas or liquid) using two flexible diaphragms in which an additional element is added to promote rolling contact...
Housing for an electronic circuit module
Fuel filter with restriction indicator, and method of using same
A fuel filter assembly for a combustion engine, including a two-part filter housing, a filter element, and a restriction sensor, including an external visual...
A temperature sensitive valve (10) includes a body (11) affording a passageway (12) for fluid, a valve member (15) which is moveable relative to the body (11)...
Solid buffer rods in high temperature heat exchanger
A heat exchanger for transferring energy from a second fluid to a first fluid has a plurality of tubes to carry one of the fluids and a layer of thermal buffer...
System and method of extending communications with the wiegand protocol
An extension of the industry standard Wiegand protocol for enabling two way extended communication, enhanced error detection, encryption, multiple reader...
Apparatus for navigation satellite signal quality monitoring
An apparatus for the detection of positioning system satellite signal distortions includes a correlator that determines a plurality of correlation measurements...
Portable combustible gas detector
A portable detector of combustible or explosive gases incorporates a polymeric-type sensor or sensor array coupled to a programmed processor which carries out an...
Method and apparatus for determining message response type in a security
A security system with wireless transmitters, a wireless receiver, and a control panel. A wireless message, which includes a transmitter product type, is...
Flywheel secondary bearing with rhenium or rhenium alloy coating
A bearing for a high-speed and high-momentum rotating flywheel system for satellite or other applications that enables better recovery when unintended physical...
Methods and apparatus for particle reduction in MEMS devices
A method for assembling a micro-electromechanical system (MEMS) device that includes a micro-machine is described. The method comprises forming the micro-machine...
Attitude determination system and method
An attitude determination system and method is provided that includes at least two sensor sets. Each sensor set is configured to detect electromagnetic...
Low dielectric constant materials with improved thermo-mechanical strength
A polymeric network comprises a plurality of monomers that include a cage compound with at least three arms, wherein at least one of the arms has two or more...
Polling loop short and overload isolator (VSOI)
A Vplex polling loop device is disclosed which can automatically detect and isolate shorted or overloaded sections of a polling loop, before or after polling...
Reconfigurable aperture with an optical backplane
A reconfigurable aperture with an optical backplane. In one embodiment a reconfigurable aperture antenna is disclosed. The reconfigurable aperture includes a...
Magnetic field sensor
An integrated magnetic field sensing device includes at least two magnetoresistive elements which are biased in a first direction by an integral conductor and...
Generator with composite rotor coil retention components
A coil retention system for a rotor of an electrical generator, such as an aircraft generator, that includes one or more components made of a high strength,...
Electrically conductive polymeric mixture, method of molding conductive
articles using same, and electrically...
A thermally stable electrically conductive polymer mixture, for use in forming electrically conductive molded articles, includes at least two additives for...
Compact package design for vertical cavity surface emitting laser array to
optical fiber cable connection
A housing for opto-electronic array devices. The housing includes a base and walls that form a region that receives an opto-electronic semiconductor array....
Micro-tensile testing system
A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials...
Ground operations and imminent landing runway selection
A method for locating aircraft with respect to airport runways and taxiways, generating and annunciating situational awareness advisories as a function of...
Methods and apparatus for generating a sinusoidal motor drive signal for a
An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal. The motor drive signal originates from a...