Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8156789 | Gas sensor chip and gas sensor provided therewith To provide a gas sensor chip, and a gas sensor provided therewith, capable of producing stable output characteristics over an extended period of time even when installed in a harsh environment such as a boiler smokestack carrying exhaust gasses. There is a backside ... | 04/17/2012 |
| 8056394 | Procedure for measuring the concentration of a gas In a procedure for measuring the concentration of a target gas, a gas sensor is provided whose sensor signal at constant temperature is dependent on a target gas concentration and has a lower measurement sensitivity in a first modulation range than in a second modul... | 11/15/2011 |
| 7779671 | Phased micro analyzer VIII A micro fluid analyzer that may be highly sensitive, fast and very compact. The analyzer may use sufficiently low power per analysis to be easily implemented with an equivalently small battery pack or other portable power source. There may be energy conservation fea... | 08/24/2010 |
| 7757543 | Radio frequency identification monitoring of stents A method and system of monitoring environmental exposure of stents using radiofrequency identification is disclosed. ... | 07/20/2010 |
| 7703313 | Conformal film micro-channels for a fluidic micro analyzer Embodiments of the invention relate to a fluid containment structure for a micro analyzer comprising one or more shelled thermal structures in contact with a thermally isolated component of the analyzer and wherein the shelled thermal structure comprises a conformal... | 04/27/2010 |
| 7578167 | Three-wafer channel structure for a fluid analyzer A three-wafer channel or column structure for a fluid analyzer. The structure may have a support member, membrane, or support wafer containing heaters and interactive elements. The membrane may have a channel of one wafer facing the interactive element side and a sp... | 08/25/2009 |
| 7467541 | Sensor having a thermal gradient pump A sensor for detecting a component of a gaseous fluid containing multiple components. The sensor includes a housing, which delimits a measuring chamber and which accommodates a measuring chip having a heatable diaphragm. The housing has at least one opening which al... | 12/23/2008 |
| 7399118 | Thermal gas flowmeter comprising a gas quality indicator The invention relates to a method and a device for measuring a gas consumption by means of a gas meter. A gas meter with thermal mass flow sensor for determining mass flow signals (SM) and with a calibration as energy meter for outputting energy value sig... | 07/15/2008 |
| 7385161 | Method of estimating the temperature of an oxygen sensor heating element The resistance of an oxygen sensor heating element is estimated by modeling the effects of physical and electrical heating on the resistance of the heating element lead-in conductors, and subtracting the lead-in conductor resistance from a measure of the heating cir... | 06/10/2008 |
| 7373838 | Acoustic wave flow sensor for high-condensation applications An acoustic wave flow sensor includes a piezoelectric substrate and a heater located immediately below the acoustic wave substrate. A heating element can be deposited in association with a plurality of acoustic wave components upon the acoustic wave substrate. The a... | 05/20/2008 |
| 7367216 | Phased micro analyzer V, VI A micro fluid analyzer having a concentrator and two or more separators. The analyzer may have one, two or more pumps. The analyzer may have a hyper pre-concentrator having a number of channels. There are numerous detectors positioned along the flow path of the anal... | 05/06/2008 |
| 7360397 | Detector with condenser An ambient condition detector has a housing that carries a sensor of an airborne constituent such as a gas, and a condenser for minimizing an inflow of moisture into the sensor. A filter can be used to reduce fluid flow velocity prior to passing through or by the co... | 04/22/2008 |
| 7357015 | Gas concentration sensor, hydrogen purification unit using this and fuel cell system In order to provide a step capable of reliably detecting a CO concentration in a reformed gas at low cost and a hydrogen purifier capable of fully exerting a function of a CO purifying catalyst, a gas concentration detector comprising a reaction chamber which has a ... | 04/15/2008 |
| 7351976 | Monitoring system comprising infrared thermopile detector The present invention relates to a semiconductor processing system that employs infrared-based thermopile detector for process control, by analyzing a material of interest, based on absorption of infrared light at a characteristic wavelength by such material. Specif... | 04/01/2008 |
| 7347098 | Apparatus for providing an output proportional to pressure divided by temperature (P/T) A circuit produces an output that is proportional to the molar density of gas in a chamber. The circuit employs an operational amplifier which measures the temperature using a RTD or other element that changes resistance with temperature. The RTD is placed such that... | 03/25/2008 |
| 7301125 | Heater for optical gas sensor A heater for a window of an optical gas sensor is provided. The heater may be positioned over a portion of the window or may form at least a portion of the window. Alternatively, the heater may be separate from the optical gas sensor and positionable over the window... | 11/27/2007 |
| 7296460 | Apparatus and process for sensing fluoro species in semiconductor processing systems A gas detector and process for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. The detector in a preferred structural arrangement employs a ... | 11/20/2007 |
| 7269954 | Method for operating a gas turbine installation, and gas turbine installation A method for operating a gas turbine installation (1) includes sucking in a gaseous medium (2) by the compressor (3) and compressed in the compressor space, a liquid medium (10) being injected into the gaseous medium (2), so that a... | 09/18/2007 |
| 7244940 | Gas sensor arrangement and measuring method for improving long-term stability A gas sensor arrangement comprises a gas measuring chamber containing a gaseous analyte. First and second radiation sources emit radiation. The first radiation source operates as a measuring radiation source and the second radiation source operates as a reference ra... | 07/17/2007 |
| 7208187 | Climate control for the transport and storage of perishables Method for the control of a controlled atmosphere for the storage of plant products in at least one storage- or transport space, where a) the concentration of at least one trace gas that is produced by the plant products and has a ... | 04/24/2007 |
| 7197403 | Inferential determination of various properties of a gas mixture Methods for inferentially determining various properties of a gas mixture, when the speed of sound in the gas is known at an arbitrary temperature and pressure. The method can be applied to natural gas mixtures, where the known parameters are the sound speed, temper... | 03/27/2007 |
| 7191072 | Pressure and temperature measurement of a piezo-resistive device using differential channel of a ratiometric analog to digital converter A temperature and pressure measuring circuit is provided. The circuit comprises an uncompensated pressure transducer, an analog-to-digital converter, a reference resistive device, and first and second switches. The transducer has variable resistive devices between f... | 03/13/2007 |
| 7188001 | System and method for temperature control A system for controlling the temperature of a reaction mixture comprises at least one heating device for heating the mixture and a power regulator for regulating the amount of power supplied to the heating device. A controller in communication with the power regulat... | 03/06/2007 |
| 7174768 | Hydrogen sensor, apparatus for measuring hydrogen concentration, and method for measuring hydrogen concentration A hydrogen sensor includes a hydrogen-absorbing material, a thermoelectric element, an electrical circuit for driving the thermoelectric element, a thermometer for the hydrogen-absorbing material, a temperature control circuit for maintaining the hydrogen-absorbing ... | 02/13/2007 |
| 7166842 | Gas sensor arrangement with reduced settling time A gas sensor arrangement for detecting the presence or concentration of an analyte in a measuring gas comprises a gas measuring chamber having an inlet for receiving the measuring gas. A measuring radiation source is arranged in the gas measuring chamber. The measur... | 01/23/2007 |
| 7152460 | Apparatus and method for compensating a coriolis meter A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measu... | 12/26/2006 |
| 7147695 | Microfabricated microconcentrator for sensors and gas chromatography Devices for enhancing the sensitivity of a microsensor or any other micro device by providing on-line preconcentration. Microconcentrators that can be integrated with a sensor or a micromachined GC to enhance the signal to noise ratio can include a miniaturized sorb... | 12/12/2006 |
| 7140232 | Method and apparatus for multiple gas sensor A method and apparatus includes filter for removing a non-tracer gas from detection system and control unit for detecting the presence a low concentration tracer gas in the atmosphere. ... | 11/28/2006 |
| 7134320 | Apparatus and method for providing a density measurement augmented for entrained gas A flow measuring system combines a density measuring device and a device for measuring the speed of sound (SOS) propagating through the fluid flow and/or for determining the gas volume fraction (GVF) of the flow. The GVF meter measures acoustic pressures propagating... | 11/14/2006 |
| 7136502 | Printing media and methods employing digital watermarking Stationery, or other printable media, is encoded with a digital watermark. The watermark is not conspicuous to a human observer of the media, yet conveys plural bits of auxiliary information when optically scanned and digitally processed. The watermark can be formed... | 11/14/2006 |
| 7122150 | Electronic reader for sterilization monitors A system for determining the efficacy of a sterilization process and communicating that determination to a remote device. The system includes a sterilization sensor and a reader adapted to receive that sterilization sensor. The sterilization sensor has an indicator ... | 10/17/2006 |
| 7104112 | Phased micro analyzer IV A fluid analyzer having a concentrator and separator for concentrating and separating fluid samples at pressures up to about 10,000 psi (˜700 bar). The concentrator and separator may consist of a solid-state thin-film heater-adsorber and a channel supported by a so... | 09/12/2006 |
| 7096717 | Control device of gas sensor When the ignition switch of a vehicle is turned OFF, a purging process for increasing the flow of an off-gas fluidizing in each of the outlet side pipings of a fuel cell and discharging water remaining in a fuel cell system to an outside is started to be executed, a... | 08/29/2006 |
| 7092077 | System and method for monitoring contamination The present invention provides passive sampling systems and methods for monitoring contaminants in a semiconductor processing system. In one embodiment, that passive sampling system comprises a collection device in fluid communication with a sample line that provide... | 08/15/2006 |
| 7083395 | Pump system for pumping liquefied gases Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inl... | 08/01/2006 |
| 7080545 | Apparatus and process for sensing fluoro species in semiconductor processing systems A gas detector and process for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. The detector in a preferred structural arrangement employs a ... | 07/25/2006 |
| 7069768 | Method and apparatus for eliminating and compensating thermal transients in gas analyzer The invention concerns a gas analyzer comprising: a measuring volume (2), a radiation source (1) for providing a beam to pass said measuring volume; a heat sink (16) for said radiation source; at least one thermal detector (3) having a ho... | 07/04/2006 |
| 7060895 | Modifying the electro-mechanical behavior of devices A MEMS device is packaged with a control material that is included in the package to affect an operation of a moveable element of the device. The control material may affect operational characteristics including actuation and release voltages and currents, mechanica... | 06/13/2006 |
| 7056013 | Sensor arrangement having an air inflow pattern for preventing direct debris impact A temperature sensor arrangement (100, 300) includes a sensor cavity (150), a temperature sensing element (330) being positioned along a center line (140, 340) of the sensor cavity (150) and generating a signal indicating temperatu... | 06/06/2006 |
| 7053750 | Voltage probe systems having improved bandwidth capability A resistive pin for use in a voltage probe includes a pin-head that is configured to contact a test point in a device under test, and a resistor that is attached to the pin-head. Other systems are also provided for establishing electrical connections between testing... | 05/30/2006 |
