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Patent # Description
US-5,679,137 Optical dirty cell sensor for an electronic air cleaner
An electrostatic air cleaner has at least one hole in one of the plates over which air with charged dirt particles is passed. A light source is mounted adjacent...
US-5,677,554 FET having a dielectrically isolated gate connect
A HIGFET having a gate with a pad which is isolated from the FET heterostructure wafer by a dielectric layer to minimize leakage current between the gate and the...
US-5,675,979 Enthalpy based thermal comfort controller
A controller for a climate control system has a relative humidity sensor as well as a dry-bulb temperature sensor within the enclosure. The humidity value is...
US-5,675,149 Compact thermal camera
A low-cost portable handheld still-frame thermal camera for capture of calibrated digital thermographic infrared images having a lens assembly, a slideable...
US-5,675,086 Electrostatic capacity-type pressure sensor
An electrostatic capacity-type pressure sensor includes a diaphragm support body, first and second lids, a fixed electrode, a coupling member, an electrode...
US-5,673,182 Support frame assembly for a printed circuit card having a tie bar bridging across the frame
The assembly comprises a U-shaped frame to which the card may be secured. The frame is defined by spaced parallel side elements and a connecting end element....
US-5,672,857 Switch actuating mechanism for two sequentially activated switches
A switch actuation mechanism is provided with a support structure that is shaped to hold two switches. Each switch is associated with a pivotable member that is...
US-5,672,856 Tilt switch with increased angular range of conduction and enhanced differential characteristics
A tilt switch is made by attaching two electrically conductive members to a nonconducting tube and disposing a conductive sphere within the switch. The first and...
US-5,671,161 Switch with diagnostic capability
A switch is provided with the ability to diagnose its own operation and provide signals that represent the actuation of the switch and various diagnostic outputs...
US-5,670,875 Angular position sensor with adjustable gain and offset signal capability
An angular position sensor is provided with a rotatable magnet and first and second ferromagnetic pole pieces. The first ends of the ferromagnetic pole pieces...
US-5,667,879 TaN/NiFe/TaN anisotropic magnetic sensor element
A stack of two refractory nitride layers and a magnetoresistive layer are used to facilitate electrical connection between components of a sensor. The stack of...
US-5,666,483 Redundant processing system architecture
Disclosed is a fault-tolerant and/or fail-safe information processing system architecture for handling information from a plurality of independent subsystems...
US-5,665,947 Cable actuated switching mechanism with mechanical snap action capibility and broken cable monitoring capability
A cable switch actuating mechanism is provided with a shaft and a cam structure that slides on the shaft. When the associated cable is pulled to exert an axial...
US-5,663,732 Integrity monitoring method and apparatus for GPS and DGPS receivers
A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a...
US-D383,202 Portable room air purifier
US-5,661,578 Color liquid crystal display backlight system for night vision imaging system compatibility
The disclosure is directed to a color liquid crystal display backlight system for daytime and nighttime use. Night vision imaging system retirements are met so...
US-5,661,275 Self adjusting switch mechanism
A self adjusting switch mechanism is provided which permits the specific location of a switch to be determined during an initial operation that moves a mounting...
US-5,659,192 SOI substrate fabrication
A back-etch silicon-on-insulator SOI process that has a silicon handle wafer with an oxide layer bonded at room temperature to a silicon device wafer with an...
US-5,657,411 Negative trimming of fiber optic winding
In a fiber optic coil arrangement for use in rotation sensors, for example, axial or radial errors can be reduced or substantially eliminated by negatively...
US-5,657,105 Multi-domain liquid crystal displays
A method for fabricating a multi-domain liquid crystal display wherein adjacent areas of the display are oriented in different direction by coating the substrate...
US-5,654,672 Precision bias circuit for a class AB amplifier
A novel bias circuit provides precise base emitter voltage(V.sub.BE) which tracks the temperature coefficient of an RF transistor using low cost devices. The...
US-5,651,498 Heating system with humidity control for avoiding water condensation on interior window surfaces
A space heating system with a controllable air humidification capability calculates a theoretical value for the temperature of the interior surface of the...
US-D381,279 Humidistat housing
US-RE35,566 Sensor platform for use in machines for washing articles
A plurality of fluid condition sensors are combined together to provide a sensor cluster that senses turbidity, temperature, conductivity and the movement of a...
US-5,648,719 Magnetic sensor with characteristics that are changeable by an external magnetic device
A sensor is provided for changing an operational characteristic of a circuit within a housing structure of the sensor to a preselected stimulus. The circuit...
US-5,647,561 Containment assembly for spin table
A system for releasably restraining a first element and a second element is disclosed. The containment system uses a tensioner to urge a clamp into contact with...
US-5,646,854 Lateral guidance transition control apparatus for aircraft area navigation systems
An apparatus for providing lateral guidance through a plurality of waypoints utilizing curved path transitions. When the curved path transitions overlap due to a...
US-5,646,780 Overcoat method and apparatus for ZRO.sub.2 mirror stacks
A mirror for a ring laser gyro includes alternating optical quarterwave regions of SiO.sub.2 and ZrO.sub.2, and of admixtures of these. The alternating regions...
US-5,646,702 Field emitter liquid crystal display
A liquid crystal display having pixels illuminated by field emitter arrays. The field emitter arrays may be utilized to illuminate each pixel individually or to...
US-5,644,285 Pressure transducer with media isolation
A pressure sensor die is provided with a flexible membrane and a plunger which combine to amplify a low pressure signal while also providing media isolation...
US-5,644,230 Miniature magnetometer and flexible circuit
Miniature magnetometer apparatus for use with external equipment in determining a position and orientation of a device located within a magnetic field includes...
US-5,644,225 Method for calibrating an angular position sensor
A method is provided to calibrate an angular position sensor by using an electrical coil to provide a magnetic field that simulates the presence of a permanent...
US-5,638,137 Configurable video output channel architecture
A configurable video output channel architecture includes a plurality of parallel video pipelines arranged to drive a video display; a device for selecting an...
US-5,635,896 Locally powered control system having a remote sensing unit with a two wire connection
A communication system comprises a remote switching module having two signal terminals connected by just two conductors to the signal terminals of a local...
US-5,634,252 Apparatus for attaching protective tubing to a component
A tubing attachment apparatus is provided which automatically severs a preselected tubing segment from a continuously fed length of tubing, moves the tubing...
US-5,633,183 FET having minimized parasitic gate capacitance
A HIGFET having a gate pad situated over a non conducting portion of the channel layer of the heterostructure wafer. The method of producing this device involves...
US-5,631,863 Random access memory cell resistant to radiation induced upsets
A radiation resistant random access memory cell which has a coupling circuit between a storage node of a first CMOS pair and a gate node of a second CMOS pair....
US-5,631,656 Fail safe system with common mode avoidance
A fail operational system including two sets of first and second sensors responsive to different stimuli to produce signals indicative of a condition, and a...
US-5,631,640 Threat avoidance system and method for aircraft
A computer-based process for rapidly responding to previously unknown threats to airborne aircraft. The process makes quick, automatic decisions when required...
US-5,631,557 Magnetic sensor with encapsulated magnetically sensitive component and magnet
A magnetic sensor is provided in which a flexible substrate is used to support a magnetically sensitive component and other electronic components relative to the...
US-5,630,902 Apparatus for use in high fidelty replication of diffractive optical elements
An apparatus for replicating diffractive optical elements by embossing a master optical element into a photopolymer material disposed on a substrate, including a...
US-5,629,692 Method and apparatus for alerting pilot to transponder antenna failure in a traffic alert and collision...
A system for use with aircraft having a collision avoidance system which employs i) two transponder systems each including two antennas and a selected one of two...
US-5,628,639 Electrical connector with different lead arrangements at its opposite ends
A connector is made by cutting a continuous strip of conductive material to provide individual fingers that extend in a direction perpendicular to the length of...
US-5,627,465 Rotational position sensor with mechanical adjustment of offset and gain signals
An angular position sensor is provided with a rotatable magnetic structure that comprises a primary magnet and a secondary magnet. The primary and secondary...
US-5,627,315 Accelerometer with a cantilever beam formed as part of the housing structure
An accelerometer is provided in which a magnet structure is encapsulated within a distal end of a cantilever beam that is formed as an integral part of a housing...
US-5,625,819 Methods and apparatus for performing heap management and protecting data structure integrity in non-volatile memory
Methods and apparatus for performing heap management in programmable recording instruments used to record process data; and protecting the integrity of data...
US-5,625,373 Flat panel convergence circuit
A method and apparatus for providing error voltage compensation in a flat panel display. Voltage errors in a column driver for a flat panel display are...
US-5,625,182 Light sensor with position compensation accomplished by area distribution
A light sensor comprises two light sensitive areas that are shaped to physically compensate for the decrease in light intensity resulting from movement of a...
US-5,624,611 Replication of optically flat surfaces
A method of replicating an optically flat surface includes providing a plastic optical element having a machined flat surface. The machined flat surface includes...
US-5,623,098 Dual mode single cavity compensation for microwave resonators
A microwave resonator, useable for acceleration detection, having a cavity in which a resonant frequency F.sub.1 which changes with changes in length of the...
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