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Patent # Description
US-5,869,749 Micromachined integrated opto-flow gas/liquid sensor
A micromachined integrated opto-fluidic or opto-acoustic sensor having a rapidly intensity-varying or pulsing light source, an interference filter, a gas cavity,...
US-D405,520 Portable fan
US-D405,519 Filter element frame member
US-5,867,673 Universal operator station module for a distributed process control system
A module of a distributed process control system has a prior art kernel submodule, a peripheral submodule, and an interface circuit to provide for communications...
US-5,867,270 Mechanism and method for mounting piezoelectric transducers
Disclosed is a mounting mechanism and method for accurately securing and uniformly bonding piezoelectric transducers (PZT's) to a dither spring. The dither...
US-5,867,269 RLG mirror conditioning and cathode oxidation process
A method performed during the processing of a ring laser gyro (RLG) will produce a long life in the RLG. The method includes filling the RLG with a gas mixture....
US-5,867,039 CMOS output driver with p-channel substrate tracking for cold spare capability
A CMOS output driver circuit with p-channel substrate tracking provides an output driver to full power supply voltage. The circuit is especially useful as a...
US-5,865,612 Hot surface ignitor
An ignition circuit and method for a hot surface ignitor. The ignition process and apparatus enforces a short warm-up period for the hot surface ignitor where...
US-D405,172 Combined ceiling fan and light kit
US-D405,171 Portable electric heater
US-5,864,687 Arinc 629 data receiver system having an interface for providing identification to each of the received data...
A memory interface system is operable with a ARINC 629 terminal controller for directing storage of data message received by the terminal controller into a...
US-5,864,177 Bypass capacitors for chip and wire circuit assembly
Stacked die that are separated by an overlaying chip capacitor with a plate bonded to the bottom of the top die with a conductive adhesive and the capacitor...
US-5,862,737 Filter change indicator
This invention relates to a filter change indicator that is operable in various orientations of the device incorporating it. For example, the filter change...
US-5,861,545 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-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
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