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| Number | Title | Issue Date |
| 6014890 | Fast response humidity and temperature sensor device An airway humidity sensor incorporating a small, dry thermocouple and small, wet thermocouple to measure cyclical humidity in inspiration and expiration by the psychrometric principle, the psychrometric component incorporating dialysis micro-tubing in con... | 01/18/2000 |
| 5918272 | Magnetic and ultrasonic discriminator for particle size distribution analyzer A flow-through system for determining the particle size distribution of iron oxide particulate matter in a reactor water sample. The system includes a magnetic filter having a chamber through which a stream of reactor water. The chamber is surrounded by a... | 06/29/1999 |
| 5918264 | Fiber monitoring system A failed hollow fiber is located in a membrane filtration module by supplying a gas under pressure to the space between fibers and shell, wetting the ends of fibers, and monitoring the ends of the fibers for bubble formation.... | 06/29/1999 |
| 5908980 | Integrated safety control system for user's gas facility and gas leakage recognizing method An integrated safety control system comprises a controller unit, driver unit, first transmitter/receiver unit, and a second transmitter/receiver unit. The controller unit outputs control signals respectively based on input signals received thereto to cont... | 06/01/1999 |
| 5898105 | Leak detection apparatus for tubular fluid lines with fittings An apparatus for detecting leaks in fluid lines having any type, size, or style of fitting, the apparatus comprising in general a source of pressurized gas which is delivered into the fluid line to be tested. The fluid line is sealed on one end by a blank... | 04/27/1999 |
| 5886249 | 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, which may or may not be an optical and/or acoustic resonator tuned to a particular wavelength... | 03/23/1999 |
| 5874669 | Scanning force microscope with removable probe illuminator assembly A scanning force microscope employs a laser (76) which creates a laser beam (26). The laser and a probe assembly (24) are mounted in a removable probe illuminator assembly (22). The removable probe illumination assembly is mounted to the moving portion of... | 02/23/1999 |
| 5874668 | Atomic force microscope for biological specimens An atomic force microscope for quantitative imaging and identification, at the molecular or submolecular level, biomolecules or subunits of biomolecules in a physiologic environment, through use of a cantilever tip incorporating a biomolecular identifier.... | 02/23/1999 |
| 5868027 | Measurement of viscosity of a melt in a plasma centrifugal furnace A system of determining a viscosity of a melt in a centrifugal furnace. In this system, the centrifugal furnace is rotated at a first rotational speed. The rotational speed of the centrifugal furnace is then changed to a second rotational speed. At least ... | 02/09/1999 |
| 5866799 | Method of measuring a gas component and sensing device for measuring the gas component A method and a sensing device of measuring a concentration of a gas component of a measurement gas, which method includes the steps of: introducing the measurement gas containing the gas component, from an external measurement-gas space into a first inter... | 02/02/1999 |
| 5856726 | Electric lamp with a threaded electrode An electric discharge lamp with an internally threaded electrode is disclosed. The lamp includes an envelope, a support rod, and an electrode can with an interior surface having a multiplicity of peaks, points, of sharp edge regions. These equal height pr... | 01/05/1999 |
| 5847270 | Stylus attachment for a metrological instrument An arrangement for mounting a stylus on a stylus support for a metrological instrument includes a camming pin on a mounting disc of the stylus support, which passes through a mounting hole in a mounting disc of the stylus. A spring applies a sideways forc... | 12/08/1998 |
| 5844124 | Method and apparatus for measuring odorant concentration and oderant adding system A method, an apparatus, and an integrated system using the apparatus for measuring a concentration of odorant in odorized gas which is produced by adding the odorant to un-odorized gas comprised mainly of hydrocarbon gas. In a detection absorbance measuri... | 12/01/1998 |
| 5834633 | Device for concentrating trace components in a liquid A probe device for use in measuring trace quantities of a component in a liquid environment comprises: (i) a membrane which is permeable to the component; and (ii) a layer of a material capable of binding the component and arranged to receive material whi... | 11/10/1998 |
| 5834643 | Capacitive auto-sensing micro-probe The present invention discloses a capacitive-type auto-sensing micro-probe used in high-sensitivity sensor elements. The micro-probe is constructed by semiconductor process technology using solid forming methods to comprise the elements of a probe, a prob... | 11/10/1998 |
| 5831151 | System and method for monitoring the proportional volume of constituents provided to a mixture Ferromagnetic tagging material is suspended in a constituent of a two constituent mixing system. Two tagging material sensors are employed that respectively monitor the tagged constituent as it flows in the system alone and the mixed constituents as they ... | 11/03/1998 |
| 5824881 | Gas/fluid detector for contained fluid systems The present invention provides an improved gas/fluid detector for use in contained fluid systems, and is particularly apt for medical applications wherein fluids are transfused to a patient. The invention includes directing energy pulses into a fluid cont... | 10/20/1998 |
| 5824887 | Method and device for measuring the surface tension of a liquid composition in a curtain The invention relates to the measurement of the dynamic surface tension of a liquid, particularly a liquid forming a curtain. The measuring device includes introducing, into the curtain, an obstacle adapted to create a standing wave defining two inverted ... | 10/20/1998 |
| 5825124 | Cathode-ray tube having activated green and blue phosphors A cathode-ray tube includes a phosphor screen having a tricolor phosphor layer composed of a red phosphor, a green phosphor of ZnS:Cu, Al activated with Ni, Fe, or Co, and a blue phosphor of ZnS:Ag activated with Ni, Fe, or Co. The green phosphor and the ... | 10/20/1998 |
| 5824885 | Method intended for use in anaesthetic systems for identifying anaesthetics In order to keep a patient from being administered an incorrect anaesthetic, an erroneous concentration of an anaesthetic or a mixture of anaesthetics, an anaesthetic system can be equipped with a device for identifying anaesthetics in anaesthetic system.... | 10/20/1998 |
| 5821404 | Test gas leak indicator The invention relates to a process for operating a test gas leak indicator (1) with a gas inlet (2) and a test gas-sensitive detector (4), in which all or part of a stream of gas containing the test gas reaching the inlet (2) is taken to the detector (4) ... | 10/13/1998 |
| 5821679 | Electron device employing field-emission cathode Concave portions are formed, in a matrix fashion, in a substrate formed of metal or semiconductor. An electron emission layer made of material having small work function such as a diamond thin film is formed on the bottom portion of the concave portion. A... | 10/13/1998 |
| 5821409 | Scanning near-field optic/atomic-force microscope with observing function in liquid A scanning near-field optic/atomic-force microscope comprises a holder for holding a sample immersed in a liquid, and a plate disposed over the holder for covering a surface of the liquid and for transmitting therethrough a laser light. A probe has an opt... | 10/13/1998 |
| 5821399 | Automatic test parameters compensation of a real time fluid analysis sensing device A method for automatic fluid flow compensation in disposable fluid analysis sensing devices is disclosed. The method is designed to keep the test conditions from sample to sample substantially unchanged. This is accomplished by using information about the... | 10/13/1998 |
| 5817922 | Gas sensor consisting of surface wave components In a gas sensor comprising a housing and having driver and amplifier circuits the housing has a bottom part with at least four cavities arranged in radial symmetry around a central gas admission space from which gas admission passages of the same shape an... | 10/06/1998 |
| 5817921 | Piezoelectric enviromental fluid monitoring assembly and method An environmental gas monitor for detection of a trace fluid component in a fluid environment, comprising: a piezoelectric crystal having a fundamental resonant frequency in response to an applied oscillating electric field; a coating on the piezoelectric ... | 10/06/1998 |
| 5817925 | Evaporative emission leak detection system An on-board diagnostic system for an evaporative emission control system of an internal combustion engine powered vehicle employs a leak detection module that is fluid connected in a vent passage for the evaporative emission space. The leak detection modu... | 10/06/1998 |
| 5817931 | Glide detect head with predictable asperity contact region A glide detect head includes a slider and a transducer. The slider includes a slider body with a leading edge, a trailing edge, and a slider surface therebetween. Substantially parallel rails are spaced apart and extend from the leading edge to a location... | 10/06/1998 |
| 5814721 | Fluid boiling point analyzer The present invention provides an apparatus for use in indicating the boiling point of fluids across a wide temperature range which comprises a meter of the portable hand-held type including a probe for insertion vertically into a fluid for testing, with ... | 09/29/1998 |
| 5809825 | Sampling device for aerated liquids A device for the determination of the rate of sedimentation of particles in a sample of a liquid and controlling the addition of a flocculant to the liquid in accordance with the rate of sedimentation so determined. The device comprises a sample container... | 09/22/1998 |
| 5811661 | Method for monitoring the functional capability of an exhaust gas sensor-heater During lean operation of the internal combustion engine, preferably in relatively long-lasting overrunning shutoff phases, the output voltage of the sensor signal is regulated to a predetermined desired value via the heating control unit. If within the di... | 09/22/1998 |
| 5802909 | Apparatus and methods for monitoring carbon disulphide An apparatus and an associated method for monitoring compliance with a disulfiram prescription regime. A self testing device 10 includes a gas sensor 12, a display 13, an indicating light 14, and a start button 15. An air inlet 16 is joined on the body 11... | 09/08/1998 |
| 5804710 | Atomic force microscope system with multi-directional voice coil actuator for controlling the stylus An atomic force microscope (AFM) system has a bidirectional actuator to move the AFM tip or stylus in a plane parallel to the surface of the sample to be scanned as well as perpendicularly to the surface of the sample. The actuator is a modified voice coi... | 09/08/1998 |
| 5804708 | Atomic force microscope and method of analyzing frictions in atomic force microscope An atomic force microscope comprises a vibrating device for producing transverse vibrations between a sample and a probe and a vertical load-adjusting device for adjusting the vertical load between the sample and the probe. The sample is vibrated transver... | 09/08/1998 |
| 5804721 | Capacitor for water leak detection in roofing structures A pair of metal plates having a space therebetween are surrounded by a flexible enclosure which is waterproof and which is filled with a dry gas. A pair of electrical conductors connected to the plates extend through and are water-tight sealed to the encl... | 09/08/1998 |
| 5801317 | Oxygen/carbon dioxide sensor and controller for a refrigerated controlled atmosphere shipping container A controller for use in a system employing selective permeable membrane technology to maintain a controlled atmosphere within a refrigerated container. The controller is electrically interfaced to an oxygen and carbon dioxide sensing device which is dispo... | 09/01/1998 |
| 5801297 | Methods and devices for the detection of odorous substances and applications Device for carrying out a method of odor detection comprising, in particular, a plurality of chambers (1, 2, 2a, 3), each including a plurality of semi-conductor gas sensors (6), conductive polymer gas sensors (7), surface acoustic wave gas sensors (8), a... | 09/01/1998 |
| 5801298 | In-line valve seat leak flow testing apparatus A leak check blind, according to the present invention, allows an in-line valve seat to be tested without removal of the valve from the line. The leak check blind is inserted in the flow line upstream from the valve to be tested. The blind is connected to... | 09/01/1998 |
| 5798609 | Flat display screen with a wide inter-electrode spacing A flat display screen includes two electrodes separated by an inner space. At least one first electrode is supported by a thin substrate and by a thick rigidifying plate, the inner space being defined by a peripheral frame placed between the electrodes, o... | 08/25/1998 |
| 5798603 | Cathode ray tube having improved beam convergence A cathode ray tube includes an evacuated envelope having a panel portion carrying a phosphor screen, a neck portion housing an electron gun and a funnel portion for connecting the panel portion and neck portion, the electron gun housed in the neck portion... | 08/25/1998 |
