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Exhaust gas heat exchanger
An exhaust gas heat exchanger comprising an external shell (20) extending between two tube plates (30, 31) and defining a coolant chamber; internal tubes (38)...
Pneumatic generator system for simulating operating conditions of an
A pneumatic function generator system for maintaining a desired pressure and/or a desired rate of pressure change with respect to time. The pneumatic function...
Electro-hydraulic actuator with mechanical servo position feedback
A method and apparatus for an electro-hydraulic actuator (1) having mechanical feedback provide closed loop control with a high degree of accuracy. The...
Computer-implemented methods for allocating resources to items are provided. One or more assignment scores for each item/resource pair are determined by applying...
Method of recovering a flight critical computer after a radiation event
A method and apparatus for recovering a real-time computer system by running multiple versions of an operational program including multiple data partitions are...
Combinatorial approach for supervised neural network learning
A technique for machine learning, such as supervised artificial neural network learning includes receiving data and checking the dimensionality of the read data...
System, method and apparatus for pattern recognition with application to
symbol recognition and regeneration...
The invention provides a technique for pattern recognition that employs a state machine that incorporates a sequence of table-look-up operations. A sequence of...
Electric motor with speed control
An actuator is provided having an electric motor that generates a back emf. The actuator also includes a control system for controlling the speed of the electric...
Ionization type smoke sensing chamber
A modular smoke detector has a sensing electrode carried by an insulator module. The insulator module also carries an ionization source and a field effect...
Automatic transmission shift control solenoid and valve
A control solenoid and valve includes a valve bodying having a magnetic assembly, hydraulic assembly, and a pressure regulation member. The magnetic assembly and...
Movable zero point position sensor
A sensor assembly is coupled with a control linkage and detects displacement of the control linkage and produces an output signal indicative of that...
Process variable gauge interface and methods regarding same
A graphical user interface for providing real-time process information to a user with regard to a process that is operable under control of one or more process...
Magnetic shield for a fiber optic gyroscope
A magnetic shielding system for a fiber optic gyroscope is disclosed. The fiber optic gyroscope may have a sensing coil with a sensing axis. An exemplary...
Concealed wireless sensor with external antenna
A wireless security device, such as a door or window motion sensor, that can be mounted almost entirely within a recess of a door, window or frame, with only the...
Microelectromechanical device with integrated conductive shield
A microelectromechanical device and method of fabricating the same, including a layer of patterned and deposited metal or mechanical-quality, doped polysilicon...
Variable geometry turbocharger
A cartridge is formed by an insert fixed to a base to form turbine intake nozzles in which vanes are rotatably mounted, and the base is fixed to a center...
Vehicle, lightweight pneumatic pilot valve and related systems therefor
A vehicle, such as a missile, with a pilot valve system controls the vehicle's thrust valves despite a hostile propellant gas environment. The pilot valve system...
Non-linear spring force switch assembly
A switch assembly includes an arm assembly, a primary spring, one or more secondary springs, and a latch assembly. The arm assembly is configured to rotate...
Methods and apparatus for determination of a filter center frequency
A method for calculating a center frequency and a bandwidth for a radar doppler filter is herein described. The center frequency and bandwidth are calculated to...
Station identification for a local area augmentation system on a visual
An aircraft on-board system for communicating with a ground-based radio transmitter forming a part of a Local Area Augmentation System for aiding in the...
A sensor having a nanotube grown on and supported by thermal bimorph structures. The nanotube rests on a heat sink during sensing gas or a liquid and is moved...
Signal routing in a hermetically sealed MEMS device
A hermetically sealed MEMS device having a micro-machined electromechanical device, a plurality of pillars at spaced-apart positions removed from the ...
There is disclosed an improved actuator 215, and an operating key 100 for use in the actuator 215. Known actuators suffer from a number of problems such as...
Vane and/or blade for noise control
Exemplary turbine blade outer edges, exemplary vane inner edges, exemplary systems and exemplary methods are disclosed that help to reduce noise in variable...
A luminaire including a lamp, reflector, collimator and optional waveguide. The waveguide can be solid or hollow or include several serially-arranged total...
Method and apparatus for detecting the strain levels imposed on a circuit
A device for detecting strain levels imposed on a circuit board includes an apparatus mounted on the circuit board, an amplifier for detecting a change in the...
Air conditioning system and method of testing
An air conditioning system for conditioning a supply of hot pressurised air for use in an environment the system including a primary heat exchanger in which heat...
High response, compact turbocharger
Turbochargers of this invention comprise a turbine housing and a turbine wheel rotatably disposed therein. A center housing is connected to the turbine housing,...
High integrity recovery from multi-bit data failures
Methods and system for facilitating a computing platform to recover quickly from transient multi-bit data failures within a run-time data memory array in a...
Advanced recipe--a knowledge based information system for production
An novel recipe that embodies a higher level description than currently used in the industry is described. The novel recipe is referred to herein as an "advanced...
System and method for identifying, reporting, and evaluating presence of
A system and method for identifying, reporting, and evaluating a presence of a solid, liquid, gas, or other substance of interest, particularly a dangerous,...
Sensor for multi-band radiation detection within a field of view
A sensor having a several groups of detectors for gas, agent or interferent detection. The detectors may have various fields of view. The detectors may be placed...
Methods for reducing the curvature in boron-doped silicon micromachined
Layers of boron-doped silicon having reduced out-of-plane curvature are disclosed. The layers have substantially equal concentrations of boron near the top and...
Use of powder metal sintering/diffusion bonding to enable applying silicon
carbide or rhenium alloys to face...
A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The...
Physical vapor deposition targets, and methods of fabricating metallic
The invention includes a physical vapor deposition target composed of a face centered cubic unit cell metal or alloy and having a uniform grain size less than 30...
Gas flow control
A gas flow controller includes a control valve coupled for actuating a main valve. In one example embodiment, a gas flow controller includes a main valve and a...
Fully integrated aircraft cabin pressure control system valve
An aircraft cabin pressure control system valve integrates three cabin pressure control functions, main cabin flow control, positive pressure relief, and...
An armor system useful, for example, as a shroud, comprising a first pliable, cut resistant fibrous layer and a second pliable fibrous layer is disclosed. The...
Exhaust gas recirculation system using absolute micromachined pressure
An absolute pressure sensor is disclosed that includes a plurality of pressure sense die and a hermetically sealed cover located above the plurality of pressure...
Ceramic on metal pressure transducer
A transducer apparatus is disclosed herein, including a method thereof for forming the transducer apparatus. A metal diaphragm can be molecularly bonded to a...
Compensation mechanism for compensating bias levels of an operation circuit
in response to supply voltage changes
A compensation circuit is disclosed for compensating bias levels of an operational circuit in response to variations in a supply voltage. The compensation...
Device for detecting a crack on a turbine blade of an aircraft engine
An apparatus for inspecting a turbine blade of an aircraft engine may include a shaft having a proximate end and a distal end, an attachment device coupled to...
Toggle switch apparatus
A toggle switch apparatus is disclosed, which includes a toggle mechanism and a plurality of basic switches maintained within a tubular housing. An actuator is...
Display screen and method of manufacture therefor
A screen assembly that combines an angle re-distributing prescreen with a conventional diffusion screen. The prescreen minimizes or eliminates the sensitivity of...
Antifog/barrier laminate for use in meat packaging
A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises a nylon film having...
Gas turbine cooled shroud assembly with hot gas ingestion suppression
A cooled shroud assembly includes an angled slot and a plurality of dilution jet openings. The shroud forward cavity is modified such that at least one...
Pitch alerting angle for enhanced ground proximity warning system (EGPWS)
A ground proximity warning system including a pitch angle alerting device, the pitch angle alerting device including warning logic having an input that is...
Decoupling of cross coupling for floating reference frame controllers for
sensorless control of synchronous...
A synchronous motor controller and method of controlling a synchronous motor without using rotor position sensors are provided. In a floating synchronous...
Circuit using current limiting to reduce power consumption of actuator with
DC brush motor
A drive circuit including a motor for positioning a damper from a rest position to a stalled position and protect the drive mechanism from damage due to...
Gate length control for semiconductor chip design
A semiconductor device includes first and second polysilicon areas on a chip. The first polysilicon area corresponds to circuit elements of the semiconductor...