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Patent # Description
US-5,859,695 Method of and system for characterization of fiber optic connections in situ
A test method and system for the testing of fiber optic connectors in a fiber optic system while the system is operational without external test equipment. An...
US-D403,972 Thermostat housing
US-5,856,743 Position-determining apparatus
An apparatus is provided for determining the position of a shaft that is rotatably displaceable about a longitudinal axis. The apparatus includes a magnet, first...
US-5,854,821 System and process for measuring ash in paper
A system and process are provided for determining the concentration of a first component of a mixture wherein the first component includes at least 3 materials....
US-5,854,678 Three-axis fiber optic gyroscope having a single source and multi-coupler configuration
A gyroscope having three fiber optic loops for sensing rates of rotation in three axes orthogonal to one another. The gyroscope has one or two detectors and one...
US-5,853,625 Water distribution tray for a pad-type humidifier unit
An in-duct humidifier has an evaporative pad onto the top of which water is dripped. Air passing through the pad evaporates the water to thereby increase the...
US-5,853,543 Method for monitoring and controlling water content in paper stock in a paper making machine
A method of predicting the dry stock weight of paper that is produced by a papermaking machine based on simultaneousness measurements of (1) the water weight of...
US-5,852,412 Differential ground station repeater
A differential global position system wherein a DGPS ground station encodes signals from a plurality of satellites and transmits the encoded signal with...
US-5,852,308 Micromachined inferential opto-thermal gas sensor
A micromachined integrated opto-thermal sensor having a rapidly intensity varying or pulsing light source, an interference filter, shadow masking or reflective...
US-D403,052 Yoke of valve
US-D403,049 Double-seated control valve
US-D402,571 User interface housing
US-D402,569 Pneumatic thermostat housing
US-5,847,952 Nonlinear-approximator-based automatic tuner
An automatic tuner for control systems that produces, as output values, parameters of an arbitrary controller. The controller is in a control loop so that its...
US-5,847,865 Waveguide optical amplifier
A waveguide optical amplifier include a substrate and a guiding or active layer. The substrate has a substrate surface and a substrate index of refraction. The...
US-D402,363 Portable fan
US-D402,359 Combined air cleaner and window fan
US-5,844,503 Method and apparatus for avionics management
A method and apparatus using a simplified language consistent with air traffic control syntax for inputting, displaying and controlling the operation of a flight...
US-5,844,236 Multi-wavelength optical drive/sense readout for resonant microstructures
A method of driving and sensing a resonant sensor network wherein a least a one resonant sensor is driven by a first light from a first light source at a first...
US-5,843,235 Apparatus for forming a deposited curver coating on a substrate and mirror
A substrate holder and mask system for depositing curved films and mirrors on flat mirror substrates. A spherical mask is held in close proximity to a substrate...
US-D402,021 Humidifier
US-5,841,969 Single bus architecture supporting subsystems of various criticality levels
Communications systems architecture using a single shared resource bus to interconnect a plurality of subsystems each handling information having a first...
US-5,841,932 Optical fiber coil and method of winding
A fiber optic sensor coil is wound from a length of optical fiber with the mid-point of the optical fiber at the mid-point of the innermost layer of the coil and...
US-5,841,915 Apparatus for determining the effect of modal noise on a communication system by affecting an optical fiber...
An apparatus is provided for causing a change in the physical condition of an optical fiber in order to analyze the effects of modal noise on a communication...
US-5,840,094 Air filter element; assembly; and, method
A filter assembly having first and second opposite frame members and a filter element removably secured to the first and second frame members is provided. The...
US-5,838,878 Portable quartz heater
A portable electric heater including a housing having a bottom wall with front and back portions, a rear wall, a pair of side walls each having front and back...
US-5,838,490 Head mounted display system using mangin mirror combiner
A head mounted display which utilizes a flat image source, an optical system including a reflecting filter and a Mangin mirror having at least one curved...
US-5,838,440 Path length controller piezo/wireboard bonding pattern
Disclosed is a path length control apparatus (PLC) for an optical device. The optical device, such as a ring laser gyroscope, is of the type that includes a...
US-5,838,294 Very low duty cycle pulse width modulator
An apparatus which outputs very low duty cycle pulses of a consistent width. It is common to use a pulse width modulator as part of a liquid crystal display...
US-5,837,894 Wide field of view sensor with diffractive optic corrector
A three-axis attitude orientation system for a spacecraft is described. The single sensor provides roll and pitch information by locating the centroid of the...
US-5,836,750 Electrostatically actuated mesopump having a plurality of elementary cells
A mesopump having a plurality of elementary cells and a method of pumping fluids using the mesopump. The cells each have a body forming a cavity having upper and...
US-D401,316 Humidifier
US-D401,315 Portable electric heater
US-D401,314 Portable electric heater
US-5,835,354 Compact modular structure for electrical converters
A modularly designed converter with T-shaped current bus bars arranged in parallel and with the crossbars thereof mounted on a metal plate but electrically...
US-D400,812 Force sensor
US-5,831,693 Integrated light sensor for an active matrix liquid crystal display panel
The active matrix liquid crystal display panel comprises a matrix of predetermined color filters, arranged in a predetermined configuration within a viewing...
US-5,830,347 Cleaning mechanism for a fluid filter
A filter assembly has a cylindrical filter element immersed in the fluid to be filtered, and which fluid normally flows radially inwards through the filter...
US-D400,659 Portable electric heater
US-5,828,060 Apparatus for determining the position of a rotating shaft
An apparatus is provided for determining the position of a shaft that is rotatably displaceable about a longitudinal axis. The apparatus includes a source of...
US-5,828,056 Photoelectric detector with improved clear container feature detection
A photodetector is provided with two light sources and a light sensitive component. The use of two light sources significantly reduces the opportunity of a...
US-5,826,834 Self adaptive limiter for automatic control of approach and landing
A self adaptive limiter for use in aircraft control systems during approach and landing is disclosed. Estimated flight path angle is continuously computed during...
US-5,825,827 Dynamically compensated linear regulator for pulsed transmitters
A system to alter the voltage supplied to the linear regulator of a pulsed transmitter in accordance with the temperature of the regulator, the minimum voltage...
US-5,825,645 Two-level system identifier apparatus with optimization
An apparatus for identifying the structure and estimating the parameters in the structure of a controlled system is described. The apparatus uses a structure...
US-5,825,358 Process and system for forming multiple preemptive modeless dialog boxes
A process and system for (a) minimizing operator interaction for selecting various functions of an application using a main window thread, an intelligent worker...
US-D399,775 Pressure sensor
US-5,822,740 Adaptive fuzzy controller that modifies membership functions
A direct adaptive fuzzy controller having an adaptation mechanism that modifies the locations of output membership functions to improve performance of the fuzzy...
US-5,822,482 Fiber optic coupler package with strain relief and packaging method
A method of packaging a fiber optic coupler formed of a plurality of optical fibers having a coupled region at which electromagnetic waves are coupled...
US-5,822,170 Hydrophobic coating for reducing humidity effect in electrostatic actuators
A touch mode electrostatic actuator and method of making the same, having first and second electrode driven surfaces positioned to move between a spaced apart...
US-5,821,882 Data conversion method and apparatus
According to a data conversion method and apparatus, an original signal is wavelet-transformed with a desired expansion count to generate transformed data. The...
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