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System to improve after-treatment regeneration
Exemplary methods, devices, and/or systems are suitable for regenerating a plurality of after-treatment units. An exemplary method includes selecting less than...
Method and apparatus for common-mode level shifting
A circuit in accordance with the invention comprises a differential amplifier; and a direct current (DC) source coupled with the differential amplifier. The DC...
Methods and systems for buried electrical feedthroughs in a glass-silicon
A method for providing conductive paths into a hermetically sealed cavity is described. The sealed cavity is formed utilizing a silicon-glass ...
Compliant pre-form interconnect
An assembly having a thermosetting layer pierced by a plurality of conductors is formed on a release sheet and subsequently sandwiched between an IC and a PWB or...
Premix burner for warm air furnace
A burner assembly for use in a warm air furnace. The burner assembly has a cooling air box for receiving air and a premix burner for receiving air-fuel premix...
Diaphragm-operated fluid flow control valve providing a plurality of flow
A fluid flow control valve uses a servo valve to control the pressure in a main diaphragm chamber defined by a main diaphragm. The main diaphragm carries a main...
Top side reference cavity for absolute pressure sensor
A pressure sensor includes a silicon diaphragm having bottom and topside surfaces. The bottom surface has been formed using methods known to those skilled in the...
Methods and apparatus for real-time projection and rendering of
geospatially organized data
Methods and apparatus are provided for real-time projection and rendering of one or more geospatially organized navigation databases. A system stores, processes,...
System and method for textually displaying an original flight plan and a
modified flight plan simultaneously
A navigational system includes a display device and logic that simultaneously presents a textual display of an original flight plan and a modified flight plan on...
Jet engine control and protection system and method
A highly reliable, multi-channel control, monitoring, and protection system includes at least three processors in each of the redundant channels, a main...
Energy storage flywheel auxiliary bearing system and method
An energy storage flywheel system includes a shaft, one or more primary bearing assemblies, and one or more secondary bearing assemblies. A secondary bearing...
Relative rotation signal transfer assembly
A signal transfer assembly that is configured to transfer one or more electrical signals between two or more conductive paths that are rotating relative to one...
Remotely releasable support strut
Methods and apparatus are provided for locking and releasing ends of a support strut coupled between a mounting platform and a load. In a preferred embodiment,...
High-pressure ratio turbocharger
A high-pressure ratio turbocharger of this invention has a two-stage compressor section comprising a first-stage compressor impeller rotatably disposed in a...
Self-sustaining control for a heating system
A self-sustaining control for a heating system, having conventional operational modes and pilot burner assembly, is disclosed. A controller directs operation in...
Apparatus for eliminating static electrical charges from a web of
dielectric sheet material
An apparatus is taught for draining static electrical charges build-up on a traveling web of dielectric material. The apparatus includes discharge means...
Carbon nanotube sensor
Carbon nanotubes are formed on projections on a substrate. A metal, such as nickel is deposited on the substrate with optional platforms, and heated to form the...
High-temperature optical rotary and linear position sensor
A device and method capable of measuring the optical rotary and linear position of items, that is reliable, accurate and capable of operating in harsh...
Hot air seal
A hot air sealing arrangement for sealing between an inner surface of an exhaust duct conveying hot combustion products and an outer surface of a heat exchanger...
Face seal assembly with composite stator
A composite face seal has an annular seal rotor and an annular seal stator, both having a metal base portion and a radially extending flange. The flange has...
Spool and poppet inlet metering valve
Valve structures include a combination of spool valving and poppet valving. A spool function of the structure regulates the flow of a liquid, such as the flow of...
Miniature 3-dimensional package for MEMS sensors
An apparatus for mechanically mounting one or more Micro Electro-Mechanical System (MEMS) sensors on a stable, structurally sound base, the base being a...
Flammable vapor sensor
A method and apparatus for sensing a flammable vapor are described herein. Initially, a first thermal conductivity of a vapor at a first temperature and a second...
Air quality control system based on occupancy
Air quality within a building is controlled by maintaining a count of people in the building and by ventilating the building with an amount of air dependent on...
Radiation-hardened RLG readout
A diffractive optical element is interposed between the exit beams from a ring laser gyro readout and the photodetectors for detecting such beams. The...
Method and apparatus for alarm verification in a ventilation system
Method and apparatus for testing the operation of an alarm for a ventilated enclosure, such as a fume hood or bio-safety cabinet. Flow of gas being exhausted...
Common radial plane motor cooling
The present invention provides a method and apparatus for efficiently cooling a motor. Three components may be used to provide forced air through a motor and a...
Methods and apparatus for attaching getters to MEMS device housings
A method for reducing occurrences of loose gettering material particles within micro-electromechanical system (MEMS) devices is described. The MEMS devices...
Absorbing compounds for spin-on-glass anti-reflective coatings for
An absorbing ether-like compound including a siliconethoxy, silicondiethoxy, or silicontriethoxy species attached to a naphthalene or anthracene chromophore via...
Fluidizing oxidation protection systems
Carbon composite components (1, 11, 22, 30), which may be aircraft brake discs, heat exchanger cores, and so on, are covered by protective coating 32. Component...
Bending beam accelerometer with differential capacitive pickoff
A low cost, pendulous, capacitive-sensing Micro Electro-Mechanical Systems (MEMS) accelerometer is provided. The accelerometer includes a pendulous proof mass,...
Fail fixed fuel metering device and method for providing bumpless transfer
A fuel metering device (101) and method for metering fuel to an engine (129) provides bumpless transfer to a backup mode. A common cavity (125) provides pressure...
Forming and assembly method for multi-axial pivoting combustor liner in gas
A multi-axial pivoting liner within the combustion system of a turbine engine allows the system to work with minimum thermal interference, especially during...
Handheld computer apparatus
A computer apparatus includes a computer processing unit including a processor device for operating upon data and providing data for display. The apparatus...
Sensor package for harsh environments
A sensor can be configured to generally include a flow channel block having a flow channel formed therein, and a sensor chip for sensing fluid flow, wherein a...
Ultra-wideband impulse generation and modulation circuit
A modulated ultra wideband pulse generation system is provided. The system comprises a pulse waveform generator circuit operable to generate an on-off pulse...
Turbofan jet engine having a turbine case cooling valve
A turbofan jet engine that includes a valve assembly mounted within the engine and in fluid communication with the engine bypass flow passage. The valve assembly...
Gas conversion assembly
A gas conversion assembly generally has a gas inlet and a gas outlet. The assembly includes a control mechanism for regulating the flow of gas from the inlet to...
Out-of-plane compensation suspension for an accelerometer
A high aspect ratio microelectromechanical system device for measuring an applied force and having a suspension structure for compensating out-of-plane...
Full rail drive enhancement to differential SEU hardening circuit while
A hardening system includes a data storage device having a data input, a clock input, a data node Q, and a data complement node QN. The data storage device...
Method for eliminating strong ambient light in aircraft cockpits
Light is polarized in perpendicular directions between a source of light and a users viewing of information on a display device. A first sheet of polarized...
Gas turbine engine starter-generator exciter starting system and method
including a capacitance circuit element
A rotating electrical machine, such as an aircraft starter-generator, that includes an exciter that has its stator windings supplied with electrical power from a...
Control system for regulating exciter power for a brushless synchronous
A control system regulates power to a brushless synchronous generator (BSG) (204) having a permanent magnetic generator (PMG)(210), an exciter (208) and a main...
Thermal interface materials
A crosslinkable thermal interface material is produced by combining at least one rubber compound, at least one amine resin and at least one thermally conductive...
Methods of fabricating metallic materials
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...
Ultrasonic conditioning device cleaner for chemical mechanical polishing
A method and system for cleaning conditioning devices used in chemical mechanical polishing (CMP) systems is disclosed. The system includes a robotic arm for...
A sensor package is disclosed. The sensor package includes a housing that has a recess and a sealing member epoxied within the recess of the housing. The housing...
Surface acoustic wave pressure sensor with microstructure sensing elements
A pressure and temperature sensor system, the system comprising one or more microstructure temperature-sensing elements formed on a substrate within a ...