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Optical structures for diffusing light
Optical diffusing structures can be fabricated from photopolymerizable material by directing light through a transparent or translucent substrate and then...
Three dimensionally periodic structural assemblies on nanometer and longer
This invention relates to processes for the assembly of three-dimensional structures having periodicities on the scale of optical wavelengths, and at both...
A method for coating substrates having sides of the substrate with unequal adhesion properties includes the steps of non-symmetrically coating the substrate by...
Pilot flame powered burner controller with remote control operation
A burner system for use in applications such as a gas fireplace insert has a main burner, a standing pilot burner, a burner control unit, and a fuel valve. In...
Call mechanism for static and dynamic linked functions within an
object-oriented controller using heterogeneous...
For use within a computer-based digital control system, a calling mechanism and method for allowing both dynamic linked application objects and static linked...
Extending RLG lifetime by maintaining low level oxygen impurity background
Plasma is placed in ring laser gyro blocks to create laser beams for the operation of the ring laser gyro. The plasma is doped with a small portion of material...
Intermetallic aluminides and silicides articles, such as sputtering
targets, and methods of making same
Described is an in situ method for producing articles of metal aluminide or silicide by reactive sintering and vacuum hot pressing powders and products, such as...
Methods for fabricating dimpled contacts for metal-to-semiconductor
An improved electrical connection between a metal surface and a semiconductor surface is provided by the deposition of a conductive dimple on the metal surface,...
Motor-assisted variable geometry turbocharging system
The motor-assisted variable geometry turbocharging system has a motor to add power to the turbocharger rotating assembly, especially at low exhaust gas volume....
VCSEL structure insensitive to mobile hydrogen
An active region of a VCSEL at one (i.e., n doped) end having an expanded effectively undoped region, and another (i.e., p doped) end having a significantly...
Industrial process field instrumentation employing satellite transmitted
An industrial process field instrument is disclosed having access to the reference signals transmitted by the global positioning system (GPS) including a process...
Polymer microactuator array with macroscopic force and displacement
A microactuator array device, which includes a plurality of generally parallel thin flexible polymer sheets bonded together in a predetermined pattern to form an...
Board mounted sensor placement into a furnace duct
A method and apparatus for protecting humidity sensing equipment within an enclosure that can be mounted in the return airflow of a furnace duct. The humidity...
Controllers that determine optimal tuning parameters for use in process
control systems and methods of...
The present invention provides a processing system that is capable of achieving substantially optimal control performance of a process facility on a "worst case"...
Controllable circuit for providing bi-directional current to a load
A bi-directional current circuit disposed between two power sources and a load. A first switch and a second switch each connect the load to one of the power...
High speed logic family
A logic family is disclosed that produces the same advantages as Dual Pass-Transistor Logic (DPL), but uses fewer transistors and provides increased performance...
Programmable event limit detector for computer system power control
A system for controlling the application of power from a battery (12) to an electrical system (18) as well as to a computer (30) that monitors the battery,...
Methods and apparatus for controlling the intensity and/or efficiency of a
Methods and apparatus for controlling the brightness level of a lamp in a backlit LCD display include primary and secondary controllers. The primary controller...
Thermostatic water mixer
A thermostatic mixing valve having an inlet valve closure sleeve whose position relative to cold and hot water inlet valve seats is controlled by a temperature...
Combustor with dilution bypass system and venturi jet deflector
Disclosed is a premix injector for mixing air and fuel and injecting the mixture into a combustion chamber. The premix injector includes an air blast fuel...
Drive circuit and method for an electric actuator with spring return
A spring return rotary actuator incorporating a DC brush commutated electric motor and a pulse width modulation drive circuit which reduces the voltage at which...
Spark plug display container
Fiber-optic vibration sensor based on frequency modulation of light-excited
A sensor device for detecting vibration, including a light source for providing a laser light, a first optical fiber connected to the source for transmitting the...
Interchangeable stiffening frame with extended width wedgelock for use in a
circuit card module
A circuit card module having increased cooling efficiency which comprises at least one printed wiring board (PWB), at least one component mounted on the PWB, a...
Power controller with short circuit protection
A sensing and control circuit for power line shorts works especially well for sensor or actuator devices controlled through a microcontroller. A power control...
Apparatus and method for operating a micromechanical switch
A micromechanical switch and a method for operating the micromechanical switch between an open position and a closed position by moving a magnet between two...
Microturbine cooling system
A microturbine engine core with gas bearings used to support a rotating group is provided, including air flow control devices downstream of the gas bearings to...
Printed circuit assembly and method of manufacture therefor
A printed circuit assembly and method of making the same utilize in one embodiment an adhesive layer including a plurality of non-conductive "gauge particles"...
Lasable bond-ply materials for high density printed wiring boards
This invention concerns lasable bond-ply materials comprising a nonwoven reinforcing material and at least one resin material. The present invention also...
Backplane assembly for printed circuit boards
The present invention is a backplane for printed circuit board modules. The backplane includes first and second redundant, signal transmission channels. Multiple...
Momentum position control
A vehicle control system is disclosed utilizing a reaction wheel assembly for producing small scanning motions and, in combination, a scissored pair of low-cost...
Addressable valve arrays for proportional pressure or flow control
A device for controlling the proportional pressure or flow of fluids over a range of source pressure. An addressable array is interposed between a source...
Flight management system (FMS) with integrated bit mapped data charts
An aircraft Flight Management System (FMS) simultaneously displaying FMS navigation data and geographically referenced bitmap data charts. The bitmap data charts...
Adaptive cascade control algorithm
A process for performing real-time cascade control for use in controllers. An adaptive process module uses an algorithm to set parameters during system operation...
Integrated convection and conduction heat sink for multiple mounting
An integrated thermal management system for electronic devices includes a printed wiring board for supporting electronic devices, at least one die-up and one...
Differential thermal analysis sensor
A sensor having an active sensing material exposed to the substance to be detected and an active reference material that is shielded from the substance to be...
Railroad handbrake "off" sensor
A railroad brake sensing apparatus particularly suitable for handbrake sensing has a sheave wheel/bellcrank bracket which is slotted to allow the wheel/crank...
Isolation system mount for mounting sensitive electronic equipment to
An isolation system mount for mounting an electronic navigation system to the barrel of a non-recoiled artillery. The mount includes a navigation system cradle...
Clean out alert for water heaters
An apparatus and method for determining and communicating a need for water heater clean out based on scale deposit buildup is disclosed in which a sensed...
Output buffer with independently controllable current mirror legs
A programmable output buffer with independently controllable current mirror legs is disclosed. The output buffer includes a current mirror that has a reference...
Method of making hydrofluorocarbons
A method of producing hydrofluorocarbons and methods of producing other commercially attractive compounds formed as by-products of hydrofluorocarbon production...
Chemical cleaning system for electrodes used in a liquid environment
A apparatus and method for in-situ treatment of electrodes in liquid environments in which a solution supply orifice is located near an electrode to be cleaned,...
Solid liquid inter-diffusion bonding for ring laser gyroscopes
A method for bonding a gyroscope component to a gyroscope body using the solid liquid Inter Diffusion (SLID) process. The resulting bond structure has a larger...
Time lag approach for measuring fluid velocity
A method and apparatus for measuring the velocity of a fluid relatively independently of the physical properties of the fluid. This is preferably accomplished by...
Force driven hot gas proportional thruster valve
A thruster valve has a continuously positionable piston between a closed position and a maximum open position. The piston moves in response to the difference in...
Intrinsically safe cable drive circuit
A cable drive circuit allows a transmitter in a process control system to drive signals across a capacitive length of cable. The cable drive circuit uses a...
Dual standard gloss sensor
A single gloss sensor which can perform both DIN gloss measurement and DIN high gloss measurement, using the same hardware, and with minimal delay between the...
Circuit for limiting an output voltage to a percent of a variable supply
A temperature compensation circuit is provided for use in conjunction with a Hall effect element in which the temperature compensating resistors, or epitaxial...
Method and apparatus for amplifying electrical test signals from a
An apparatus and method is provided for testing performance characteristics of a MEMs device. The apparatus includes a test probe that is electrically connected...