| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Membrane sensor | US10547041 | 2004-02-18 | US07279759B2 | 2007-10-09 | Roland Müller-Fiedler; Hans Hecht; Joerg Muchow; Matthias Fuertsch; Andreas Stratmann; Heribert Weber; Winfried Bernhard; Detlef Gruen; Andreas Duell; Rainer Schink; Ulrich Wagner; Christoph Schelling |
| A micromechanical sensor and a method for manufacturing a micromechanical sensor which has at least one membrane are provided. The membrane is made of a first material which is accommodated in a surrounding second material, and the membrane is configured for sensing a medium surrounding it. The membrane is reinforced, at least partly, by a third material at break-sensitive points on the membrane rim. Reinforcement of the membrane rim increases the stability and thus also the service life of the membrane and the sensor. | ||||||
| 122 | METHOD FOR TESTING FLOW CHARACTERISTICS OF SEALING MATERIALS | US10761171 | 2004-01-20 | US20050155414A1 | 2005-07-21 | Steven Keener; Norman Byrd |
| A test method for determining, quantifying, and qualifying the flow characteristics of a sealant material compound comprising the steps of applying a uniform layer of known initial mass of sealant material between two test surfaces and compressing the sealant material between the surfaces at a specific pressure for a specific length of time, and at a specific temperature, causing an amount of sealant to be extruded from between the test surfaces. The amount of the extruded sealant is measured and compared to the total mass of initial sealant material to determine the ratio of the extruded to initial sealant material. Based upon the mass ratio of extruded sealant material versus the initial sealant material, the flow characteristics of the sealant material may be expressed for any given combination of temperature, pressure, and duration and compared to other sealant materials. | ||||||
| 123 | Procedure and device for measuring resistance to hydriding of tubes and tubular claddings | US10388328 | 2003-03-13 | US06873672B2 | 2005-03-29 | José Luis Sacedón Adelantado; Eduardo Santamera Gago; Marcos Díaz Muñoz; José Serafin Moya Corral; Elisa Román García; Angel Samuel Pérez Ramírez; Begoña Remartínez Zato |
| The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H2 or H2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H2 outside the tube is observed. The flow thereof inside the tube and emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined. | ||||||
| 124 | Method and apparatus for detecting leaks | US10868069 | 2004-06-15 | US06860140B2 | 2005-03-01 | Fred Grant McCoy; Jonathan Mark Fazekas; Ryan R. Borntrager |
| The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas and indicate the location of a leak. The leak detection apparatus may further be configured to quantify the leak rate at the leak location. | ||||||
| 125 | Method of refrigerant leak sealant additive detection | US10900629 | 2004-07-28 | US20050005681A1 | 2005-01-13 | J. Anderson |
| A method for determining the presence or absence of refrigerant leak sealant within the refrigerant charge of air conditioning systems or stores is described. A sensing unit having a seal-forming surface is wetted and placed in fluid communication with a refrigerant access port of the air conditioning system. A depressor opens the refrigerant port and refrigerant begins to flow through the sensing unit. If any leak sealant is present in the refrigerant charge, a sealant plug begins to form on the seal-forming surface and reduces the flow rate of the refrigerant through the sensing unit, thereby indicating the presence of the sealant. Refrigerant charges that do not contain a leak sealant will flow through the sensing unit at a substantially constant rate, indicating the absence of sealant. | ||||||
| 126 | Sensing unit for detecting refrigerant leak sealant additive | US10900628 | 2004-07-28 | US20050005680A1 | 2005-01-13 | J. Anderson |
| A device for determining the presence or absence of refrigerant leak sealant within the refrigerant charge of air conditioning systems or stores is described. A sensing unit having a seal-forming surface is wetted and placed in fluid communication with a refrigerant access port of the air conditioning system. A depressor opens the refrigerant port and refrigerant begins to flow through the sensing unit. If any leak sealant is present in the refrigerant charge, a sealant plug begins to form on the seal-forming surface and reduces the flow rate of the refrigerant through the sensing unit, thereby indicating the presence of the sealant. Refrigerant charges that do not contain a leak sealant will flow through the sensing unit at a substantially constant rate, indicating the absence of sealant. | ||||||
| 127 | Method and apparatus for detecting leaks | US10382565 | 2003-03-06 | US06840086B2 | 2005-01-11 | Fred Grant McCoy; Jonathan Mark Fazekas; Ryan R. Borntrager |
| The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas and indicate the location of a leak. The leak detection apparatus may further be configured to quantify the leak rate at the leak location. | ||||||
| 128 | Method and apparatus for detecting leaks | US10868158 | 2004-06-15 | US20040226345A1 | 2004-11-18 | Fred Grant McCoy; Jonathan Mark Fazekas; Ryan R. Borntrager |
| The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas and indicate the location of a leak. The leak detection apparatus may further be configured to quantify the leak rate at the leak location. | ||||||
| 129 | Method and apparatus for detecting leaks | US10868069 | 2004-06-15 | US20040221642A1 | 2004-11-11 | Fred Grant McCoy; Jonathan Mark Fazekas; Ryan R. Borntrager |
| The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas and indicate the location of a leak. The leak detection apparatus may further be configured to quantify the leak rate at the leak location. | ||||||
| 130 | Method and apparatus for detecting leaks | US10382565 | 2003-03-06 | US20040173006A1 | 2004-09-09 | Fred Grant McCoy; Jonathan Mark Fazekas; Ryan R. Borntrager |
| The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas and indicate the location of a leak. The leak detection apparatus may further be configured to quantify the leak rate at the leak location. | ||||||
| 131 | High throughput permeability testing of materials libraries | US10274184 | 2002-10-18 | US20040077091A1 | 2004-04-22 | Damian A. Hajduk; Oleg Kolosov |
| A library of material samples is screened for properties such as permeability. A library of material samples is provided. A stimulus such as an exposure to a permeate fluid is provided to each member of the library. A response of each of the material samples due to the stimulus is measured and the response, the stimulus or both are recorded and related to provide data. Thereafter, the data is analyzed to reach conclusions regarding the properties of the material samples. | ||||||
| 132 | Method for the measurement of the concentration or the partial pressure of gases in fluids in gas sensor | US09762061 | 2001-04-11 | US06679096B1 | 2004-01-20 | Detlef Lazik; Helmut Geistlinger |
| A method measures the concentration of the partial pressure of gases, particularly oxygen, in fluids. Know methods for measurements under rough conditions, e.g., measurement of the oxygen partial pressure in grounds, dumps or in the ground water are completely unsuitable. In the present method as described, in the internal area of a hollow vessel closed off to the outside, whose wall consists at least partially of a gas-specific permeable synthetic material that is in contact with the fluid with its external side, the partial pressure change proportional to the gas concentration is measured as a time-scanning of pressure change or as a change of a pressure-dependent physical variable. The measuring principle is very simple and is particularly suitable for the determination and long-time monitoring of the oxygen concentration and of further gases and can also be used in problematic locations. | ||||||
| 133 | Shelf life testing unit | US10240853 | 2002-10-03 | US20040007072A1 | 2004-01-15 | Craig P. Davis; Stephen C Ramey; Mary L Hughes-Olson; Edward R Roberts; Mihaela Penescu |
| A testing apparatus for testing the level of retained gas at elevated pressure in plastic containers for carbonated beverages includes a manifold assembly for engaging the mouth of a test set of the containers. The apparatus additionally includes a gas supply for supplying a desired quantity of a selected gas to each container, the gas preferably helium. The apparatus further includes pressure measuring units for measuring the pressure in each container, and a data collection system coupled to the pressure measuring units for periodically collecting pressure data along with ambient temperature data as a function of time. The collected data can be analyzed to determine shelf life of the containers. Using helium, the shelf life determination can be accomplished in about {fraction (1/7)}th the time of conventional shelf life tests. | ||||||
| 134 | Diffusion-based system and method for detecting and monitoring activity of biologic and chemical species | US10064392 | 2002-07-09 | US20030203504A1 | 2003-10-30 | John Hefti |
| A diffusion-based method for detecting activity of a biologic or chemical species is described. The method includes supplying the biologic or chemical species to a finite volume diffusion channel having a transport axis. The method further includes supplying a reactive constituent in fluid communication with the biologic or chemical species, whereby the reactive constituent is known or suspected of being reactive to the biologic or chemical species. The method further includes detecting the presence or absence of a diffusion gradient occurring between the biologic or chemical species and the reactive constituent. The presence or absence of the diffusion gradient can then be correlated to the presence or absence of activity of the biologic or chemical species. | ||||||
| 135 | Weld testing assembly | US09705856 | 2000-11-03 | US06463791B1 | 2002-10-15 | Guy Berube; Glenn Carson |
| The invention provides an assembly for hydrostatic testing of welds between components, such as but not limited to welds which connect components such as nozzles (2) or patches (40) to a pressure vessel (1). A sealing body (8) is secured against one of the components to define a sealed space (25) adjacent to the weld (5) to be tested. The body is secured by at least one tie rod (9), positioned to pull the body against the component by tightening of a nut (12). Pressure testing can then be carried out by introducing pressurized fluid into the sealed space and applying appropriate monitoring techniques to check for leakage. | ||||||
| 136 | Method for measuring the concentration of a dissolved gas in a fluid | US09197128 | 1998-11-20 | US06192737B1 | 2001-02-27 | Klaus Ohlrogge; Carsten Hasler; Jan Wind; Dieter Cegla; Franz Josef Steffens |
| The invention pertains to a method for measuring the concentration of dissolved gases in a liquid [(39)], especially of CO2 in beverages, in which the liquid [(39)] is passed across the retentate side [(140)] of a membrane [(14)] that is at least partially permeable to the dissolved gas, and [in which] the volumetric flow of the permeated gas on permeate side [(16)] of the membrane [(14)] is determined, the temperature of the liquid [(39)] is measured, and the concentration of the dissolved gas in the liquid [(39)] is calculated from these values. In this, the thickness of the membrane [(14)] can be pre-selected as a function of the flow rate of the liquid [(39)] flowing along the retentate side [(140)]. | ||||||
| 137 | Atmometer | US875020 | 1997-09-22 | US6048091A | 2000-04-11 | Graeme N. McIntyre; Herbert Bruce Penfold; Gary Douglas Worth; Franz Holawe |
| An atmometer includes a chamber having arranged in an interior region thereof a medium in fluid communication with a liquid source and adapted for releasably retaining liquid. The chamber also has at another region an opening to the surrounds over which a gas permeable medium is arranged. In one mode of use, the atmometer is positionable such that ambient air moving over the gas permeable medium causes at least a portion of any evaporated liquid in the chamber to diffuse through the gas permeable medium. | ||||||
| 138 | Tensiometer and method of determining soil moisture potential in below-grade earthen soil | US391942 | 1995-02-21 | US5758538A | 1998-06-02 | Joel M. Hubbell; Earl D. Mattson; James B. Sisson |
| A tensiometer to in situ determine below-grade soil moisture, potential of earthen soil includes, a) an apparatus adapted for insertion into earthen soil below grade, the apparatus having a below-grade portion, and, comprising; b) a porous material provided in the below-grade portion, the porous material at least in part defining a below-grade first fluid chamber; c) a first fluid conduit extending outwardly of the first fluid chamber; d) a first controllable isolation valve provided within the first fluid conduit, the first controllable isolation valve defining a second fluid chamber in fluid communication with the first fluid chamber through the first fluid conduit and the isolation valve, the first controllable isolation valve being received within the below-grade portion; and e) a pressure transducer in fluid communication with the first fluid chamber, the pressure transducer being received within the below-grade portion. An alternate embodiment includes an apparatus adapted for insertion into earthen soil below grade, the apparatus having a below-grade portion, and including: i) a porous material provided in the below-grade portion, the porous material at least in part defining a below-grade first fluid chamber; and ii) a pressure sensing apparatus in fluid communication with the first fluid chamber, the pressure sensing apparatus being entirely received within the below-grade portion. A method is also disclosed using the above and other apparatus. | ||||||
| 139 | Method of measuring capillary pressures | US842820 | 1992-02-27 | US5245859A | 1993-09-21 | Sidney R. Smith; Richard L. Christiansen |
| A method for rapidly and accurately determining the threshold and critical capillary pressures of a porous rock sample. A fluid saturating the sample, preferably oil, is withdrawn from the downstream end of the sample at an extremely low rate as a result of the introduction of another fluid, preferably gas, at the upstream end. The other fluid displaces the saturating fluid due to a differential pressure between the upstream and downstream ends of the sample. The differential pressure is created by means which does not require use of back pressure valves, thereby avoiding pressure surges and allowing constant slow withdrawal of the saturating fluid. The threshold and critical capillary pressures may be determined from a trace of the differential pressure. | ||||||
| 140 | Direct readout dissolved gas measurement apparatus | US566307 | 1983-12-28 | US4702102A | 1987-10-27 | Denis Hammerton |
| Relatively compact apparatus for rapidly and continuously measuring the percentage of dissolved gas in a liquid. In one embodiment thereof, the apparatus includes a gas permeable tube or membrane closed at one end having its other end connected to a pressure sensor. The gas permeable tube is mounted on the apparatus housing such that it can be immersed in the liquid to be measured. During the measurement process, if the liquid contains less dissolved gas than the equilibrium quantity at atmospheric pressure, it will absorb gas from within the gas permeable tube thereby changing the internal tube-gas pressure. The percentage of dissolved gas is related to the extent of gas absorption by the liquid and the resulting internal tube-gas pressure after gas absorption is substantially complete. Rapid measurement of the percentage of dissolved gas is achieved by altering the combined internal volume of the gas permeable tube and the pressure sensor to produce an optimum minimum internal volume within the combined internal volumes. In another embodiment, a portion of the gas permeable tube is also exposed to atmospheric pressure. Vapor from the liquid being tested passing through the tube that would otherwise condense within same subsequently passes through that portion of the tube exposed to atmospheric pressure to thereby preclude such condensation and thereby avoid dissolved gas measurement errors that might otherwise be produced by such condensation. | ||||||
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