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Environmental control system including ozone-destroying catalytic
converter having anodized and washcoat layers
An aircraft environmental control system includes a catalytic converter having ozone-destroying capability. A surface of the catalytic converter is anodized to...
Methods and apparatus for attaching a die to a substrate
A method for increasing the bonding strength between a die and a housing for the die is described where a micro-electromechanical system (MEMS) device is formed...
Magnetic sensing device
A magnetic sensing device is disclosed. The magnetic sensing device may have an integrated circuit and a magnetic sensor. A magnetic buffer layer of material may...
Heat exchanger with core and support structure coupling for reduced
A heat exchanger with a core, a support structure and a mount. The core is variable in size and has a lower temperature fluid port and a higher temperature fluid...
MEMS gyroscope with horizontally oriented drive electrodes
Devices and methods for reducing rate bias errors and scale factor errors in a MEMS gyroscope are disclosed. A MEMS actuator device in accordance with an...
Auxiliary power unit having a rotary fuel slinger
An auxiliary power unit (APU) includes a rotary fuel slinger, and a single-spool, two-stage turbine. The rotary fuel slinger receives a rotational drive force...
Method of balancing the supply of bleed air from a plurality of engines
A method of balancing the supply of bleed air from a plurality of gas turbine engines, there being an air bleed line from each of the engines to a common...
In-flight e-mail system
Systems and methods for sending and receiving e-mail from a terminal on a vehicle are provided. According to one embodiment, a passenger in a vehicle, such as an...
Fiber optic gyroscope sensing loop doubler
A fiber optic ring interferometer, such as an interferometric fiber optic gyro (IFOG), with a sensing loop doubler. The IFOG device includes a light source, a...
Magnetic field sensing device
Two sensor units are formed from magnetoresistive material. Elements of the first sensor unit have a total anisotropy field in a first direction. Elements of the...
Micro electromechanical systems thermal switch
A Micro Electro-Mechanical Systems (MEMS) thermal switch. The switch includes a FET having a source and drain in a substrate and a beam isolated from the...
Chamber for gas detector
A gas sensor, which could be a sensor of combustible gases, incorporates a diffusion chamber having symmetrical sensing and reference portions. A common source...
Air turbine starter having a force balanced, pressure energized, weighted
An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first...
Air turbine starter having a low differential check valve
An air turbine starter is provided that includes a check valve assembly. The check valve assembly comprises a valve body, a valve seat and a valve element. The...
Outflow valve butterfly plate retention pin
Methods and apparatus for retaining a butterfly plate within a valve housing after complete drive shaft failure. More particularly, the present invention is...
Closed-loop waterbrake dynamometer fluid volumetric control system and
A waterbrake dynamometer fluid volumetric control system and method includes a closed-loop recirculation passage to maintain a substantially constant fluid...
Modular electronic housing and assemblies
Methods and apparatus for displaying information
A display system according to various aspects of the present invention provides systems and methods for an integrated graphical user interface which facilitates...
Universal gateway module for interfacing a security system control to
external peripheral devices
A gateway module including a security system interface for interfacing with a security system control panel via a security system bus, a peripheral device...
Operational amplifier with selectable performance characteristics
An operational amplifier with selectable performance characteristics is provided. The operational amplifier provides a sleep mode (e.g., fully disabled) in...
Quick attachment fixture and power card for diode-based light devices
A quick attachment device for use in the repeated testing of diode light sources (30) includes a quick attachment module (10) having a fixed location with...
Thermal coefficients of nudge compensation and tare for linear and rotary
MR array position transducers
Methods and systems are disclosed in which the errors caused by thermal expansion in magnetoresistive position transducers are reduced by predicting the physical...
Hand-held laser welding wand having removable filler media delivery
A hand-held laser welding wand includes one or more removable filler media delivery extension tips. The wand is dimensioned to be grasped with a single hand,...
Preparation of mixed-halogen halo-silanes
The preparation of halosilanes having mixed-halogen substituents is described comprising providing an aryl-halo-silane having one more first halogens and one or...
Method to restore hydrophobicity in dielectric films and materials
Silica dielectric films, whether nanoporous foamed silica dielectrics or nonporous silica dielectrics are readily damaged by fabrication methods and reagents...
Modulator water dynamometer
A modular waterbrake that can be used with differing types and sizes of rotating machines includes common end stages, and a plurality of common intervening power...
Distortion control for a seamless tile display system
A modular and scalable seamless tiled display apparatus includes multiple display devices, a screen, and multiple lens assemblies. Each display device is...
Method and apparatus to minimize fractionation of fluid blend during
A method of dispensing a liquid material from a source container which includes a blend of fluids of a first composition that normally fractionate upon boiling....
Modular electronic housing and assemblies
Method and apparatus for retrieving activity data related to an activity
A method and apparatus that processes time series, event and/or activity data of a process according to a data structure. The data structure defines one or more...
Weather information network including graphical display
An apparatus for providing weather information onboard an aircraft includes a processor unit and a graphical user interface. The processor unit processes weather...
Channel selection in aircraft communications system by determining zone
load and selecting alternate carrier
An apparatus, method and computer program product that utilizes user defined channel and frequency preferences to effect airborne voice and data telecommunications.
Near-infrared method and system for use in face detection
A method and system for use in detecting a face of a person includes providing image data representative of reflected light of a scene in at least one bandwidth...
Multi tier wireless communication system
A monitoring system is provided with a two tier communication network. Multiple first tier nodes comprising wireless or RF sensors are each equipped with...
Digital signal route determination method
In a method of routing digital signals based on criteria defined by the user all messages receive a prioritization based on the criteria defined by the...
Tunneling anisotropic magnetoresistive device and method of operation
The present invention provides for a tunneling anisotropic magnetoresistive (TAM) device and a method of operation. An embodiment of the device provides for a...
Building emergency path finding systems and method
Signals from a plurality of detectors are evaluated to establish an ingress or an egress path or paths to and from a region. Where the detectors indicate flame...
Magnetic actuation of a switching device
A control device including a switch with a ferromagnetic armature moving between a first position and a second position. The armature actuates a plunger that...
Multiple output magnetic sensor
A door position sensing system includes a door claw having first and second magnets mounted thereon, and a Hall sensor mounted so as to sense the magnetic fields...
Power supply with multiple transformer current sharing
Devices and methods for using multiple transformers to provide a power supply to a device or system. Included are systems for using multiple transformers and...
Methane and methyl chloride as selective reducing agent in the
transformation of hydrochlorofluorocarbons or...
A gas phase reaction process for producing a hydrofluorocarbon from a hydrochlorofluorocarbon or chlorofluorocarbon reactant by contacting, in the presence of a...
Catalytic conversion of hydrofluoroalkanol to hydrofluoroalkene
Methane is used as the selective dehydrating agent for the production of 2,3,3,3-tetrafluoro-1-propene (R1234yf) from 2,2,3,3,3-pentafluoro-1-propanol. Supported...
Delivery of pitch/thermoplastic/thermoset resins in RTM systems
Resin or pitch is melted in a melt blender apparatus (11) and then loaded, into a heated jacketed holding tank (12). A pair of feed lines (14, 16) receives resin...
Bi-directional connections for daisy-chained dampers
A damper unit for an air circulation system. The damper unit includes an air flow opening, a damper vane for opening and closing the air flow opening, and a...
Dual mode display with a backlight filter for an unactivated light
emitting diode (LED)
A dual mode or multimode backlight containing LEDs as a light source. The backlight has light cavity containing a reflective material. The cavity has an opening...
Selectively cold worked hydraulic motor/pump shoe
A method of manufacturing a wear resistant shoe (26) includes upsetting (46) one end portion (38) of cylindrical member to work harden that portion to a...
Providing an indication of the position of a valve member
A method of providing an indication of the position of a valve member of a valve in a fluid path where the valve member is moveable between a fully open position...
Force measurement of bimetallic thermal disc
An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The...
Isolated pressure transducer
A pressure transducer includes a carrier having a central aperture for receiving fluid from a vessel. A sense die mounts on the carrier having a first side...
Vibrating beam accelerometer
Microelectromechanical system (MEMS) integrated micro devices and acceleration sensor devices formed of first and second silicon wafers that are permanently...