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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8110401 | Blend dyes and method of identifying leaks A blended dye for use in a coolant. In one embodiment of the invention, the blended dye includes a first water miscible dye adapted to fluoresce when illuminated with a light. The first dye preferably has a wavelength of about 340 nm to about 420 nm. The blended dye... | 02/07/2012 |
| 8084259 | Method of insuring the integrity of a filtering element The present invention describes a system for accurately measuring the concentration of a substance within a filter housing. A concentration sensor and a communications device are coupled so as to measure and transmit the concentration of a particular substance withi... | 12/27/2011 |
| 8058070 | Method of determining the components of a fluoroolefin composition, method of recharging a fluid system in response thereto, and sensors used therefor Disclosed are a method of determining the components of a fluoroolefin composition, a method of recharging a fluid system in which the composition is used, and sensors used therefor. In particular, the composition may be a fluoroolefin refrigerant composition used w... | 11/15/2011 |
| 8003391 | Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same A fluid storage and dispensing vessel having associated therewith a colorimetric member that is effective to change color in exposure to leakage of a gas contained in the vessel. The colorimetric member may be constituted by a film, e.g., of a shrink-wrap character,... | 08/23/2011 |
| 7915047 | Coating for leak detection and method A coating is used to detect a fluid leak. ... | 03/29/2011 |
| 7892839 | Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of the same In order to check the hermeticity of a closed cavity of at least one micrometric component, said component includes a structure made over or in one portion of a substrate, a cap fixed to one zone of the substrate to protect the structure, and an indicator element wh... | 02/22/2011 |
| 7888124 | System for monitoring the health of electrical generators and method thereof A method and apparatus is provided for a system for maintaining hydrogen purity in an electrical power generator where the system monitors the health of the electrical generating system by calculating the time remaining until preventative maintenance is required bas... | 02/15/2011 |
| 7727765 | Method for leak testing an environmental enclosure Methods and apparatus are disclosed for leak testing the ventilation system of an environmental enclosure using a gas that is naturally present in ambient air, such as nitrogen, oxygen, argon, or carbon dioxide, as a tracer gas. In one embodiment, a gas filter capab... | 06/01/2010 |
| 7601537 | Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of same In order to check the hermeticity of a closed cavity of at least one micrometric component, said component includes a structure made over or in one portion of a substrate, a cap fixed to one zone of the substrate to protect the structure, and an indicator element wh... | 10/13/2009 |
| 7592178 | Filter integrity tester An apparatus and method for testing the integrity of a filter under humid conditions is provided. The apparatus includes an injection assembly which is located on a first side of the filter and a detection assembly which is spaced from the injection assembly and loc... | 09/22/2009 |
| 7572636 | Method of detecting a leakage in an apparatus The invention relates to a method of determining the cleanness of an apparatus comprising the steps of treating the interior of the apparatus with a solution comprising permanganate so as to cause the permanganate to react with contaminants, if any, being present wi... | 08/11/2009 |
| 7534615 | Process for detecting leaks in sealed packages The present invention relates to a process for detecting a leak in a package. The process comprises preparing a package by covering at least a portion of an O2-sensitive product with a multilayer film comprising (i) a leak-indicator layer in which a O | 05/19/2009 |
| 7369945 | Apparatus and method for storing and transporting data related to vapor emissions and measurements thereof The present invention provides apparatus and a methods for collecting, transmitting and storing fugitive gas emission data. An embodiment of the invention collects fugitive gas with a sampling probe and into a emission monitoring device. The device then sends and st... | 05/06/2008 |
| 7354768 | Volume-differential assay using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 04/08/2008 |
| 7337078 | System and method for remote asset monitoring A system and method for remotely monitoring conditions at a location and for controlling devices at the location. The inventive system includes: a data link in communication with an electronically readable instrument, the data link having a transceiver configured fo... | 02/26/2008 |
| 7253002 | Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same A chemical storage and dispensing vessel having associated therewith a colorimetric member that is effective to change color in exposure to leakage of a gas contained in the vessel. The colorimetric member may be constituted by a film, e.g., of a shrink-wrap charact... | 08/07/2007 |
| 7229593 | Portable vapor diffusion coefficient meter An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance thr... | 06/12/2007 |
| 7213534 | Device and method for detection/indication of liquid leakage An improved device for the detection of leakage is achieved when the device includes at least two components, of which at least one is capable of migrating with the liquid within the carrier, and forming a distinct color or other detectable signal with the first com... | 05/08/2007 |
| 7210336 | Gas link leak evacuation and monitoring system An apparatus and method for evacuating gas from the soil surrounding a leaking gas conduit utilizes non-sparking and static dissipating components to reduce the risk of an explosion. The evacuation of gas from probes in boreholes in the vicinity of the leak is induc... | 05/01/2007 |
| 7197409 | Compensating for surface movement of liquid product within one or more liquid product tanks during capture of height and volume data Disclosed are systems, methods, and computer program products to compensate for surface movement of liquid product within one or more tanks during a liquid product book to physical reconciliation process. A plurality of measurement data at a plurality of times can b... | 03/27/2007 |
| 7192459 | Addition of odorants to gases for leak detection An apparatus for dispensing an odorant to a fluid in a vessel having an interior volume containing the fluid includes at least one odorant material and an odorant-permeable material. The at least one odorant material is disposed in the interior volume, the odorant m... | 03/20/2007 |
| 7185683 | Preventing unauthorized delivery of liquid product to a liquid product storage tank Disclosed are methods, systems, and computer program products to prevent a delivery vehicle from making an unauthorized delivery of liquid product to a liquid product storage tank at a retail store facility. A retail system and/or a centralized inventory management ... | 03/06/2007 |
| 7178561 | Performing temperature standardization of the volume of a liquid product at one or more points of physical measurement Disclosed are methods, systems, and computer program products for performing temperature standardization of the volume of a liquid product from a distributor to a consumer. Using a volume measurement device and a temperature measurement device located at a rack, a s... | 02/20/2007 |
| 7181361 | Collecting and communicating temperature and volume data directly from a dispenser Disclosed are methods, systems, and computer program products for collecting and communicating temperature and volume data directly from a dispenser for use during a book to physical reconciliation process. The temperature and volume readings can be received directl... | 02/20/2007 |
| 7177780 | Methods and systems for measuring physical volume Disclosed are methods, systems, and computer program products for determining a volume of liquid product in a manifold set of tanks. The method includes identifying a plurality of book volumes of liquid product in the manifold set of tanks. The method further includ... | 02/13/2007 |
| 7153532 | Sensing gaseous substances using metal complexes A metal co-ordinated complex in a medium, e.g. a palladium-fluorophore, may be used to detect food spoilage products by the release of a detectable component by preferential binding of the metal to, for example, sulphur compounds or amines. It can be easy to detect ... | 12/26/2006 |
| 7148066 | Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous ammonia and provide for leak detection in storage vessels. The dye will ... | 12/12/2006 |
| 7111580 | Device for detecting the presence of a chemical contaminant The disclosure relates to a device for detecting the presence of a chemical contaminant. The device comprising a resilient indicator element which is biased into a first position and is anchored in the first position by means of a failure element. The failure elemen... | 09/26/2006 |
| 7112443 | High throughput permeability testing of materials libraries 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 ... | 09/26/2006 |
| 7105350 | Closure integrity test method for hot-fill bottling operation A method for evaluating the integrity of the closure on a hot-filled container in which the hot-filled container is subjected to a pressurized spray of cooling medium, including the step of providing a cooling medium having an effective amount of a fluorescing dye c... | 09/12/2006 |
| 7024869 | Addition of odorants to hydrogen by incorporating odorants with hydrogen storage materials An apparatus for dispensing an odorant to a hydrogen gas includes at least one container, each container having an interior volume. At least one odorant material is disposed in the interior volume of a first container, the odorant material having at least one detect... | 04/11/2006 |
| 7003405 | Methods for characterizing subsurface volatile contaminants using in-situ sensors An inverse analysis method for characterizing diffusion of vapor from an underground source of volatile contaminant using data taken by an in-situ sensor. The method uses one-dimensional solutions to the diffusion equation in Cartesian, cylindrical, or spherical coo... | 02/21/2006 |
| 6941829 | Leak detector A leak detection device is provided with an elongated handle having a head member disposed at one end. The device has a low profile for easy insertion beneath an appliance. The head member is configured to be easily oriented around wheels or other supports while pos... | 09/13/2005 |
| 6928864 | Tool assembly and monitoring applications using same The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a h... | 08/16/2005 |
| 6912924 | Testing apparatus and method An apparatus is provided for testing equipment located in a local environment by presenting a detectable indicator gas therein. The apparatus has a container portion, a chemical substance stored in the container portion, a pump operable to draw air into the containe... | 07/05/2005 |
| 6913928 | Hazardous chemical simulants Disclosed are hazardous chemical simulant compositions that can be used to simulate hazardous chemicals and methods for using hazardous chemical simulants. The compositions can include a phosphor, which emits visible light in the presence of ultraviolet light. The m... | 07/05/2005 |
| 6861259 | Method of using a cartridge for containing a specimen sample for optical analysis A cartridge for holding a test specimen with an extremely small volume. The cartridge has a test chamber and a vestibule through which the test fluids are inserted into the test chamber. The cartridge has a stopper having a pair of seals, the first of which seals th... | 03/01/2005 |
| 6820464 | Odorized seals for the detection of gas leak An apparatus for detecting a leak of a fluid from a system for storing and/or transporting a volume of the fluid includes an odorant material. The system includes at least one vessel and at least one sealant having an outer surface. The odorant material is encapsula... | 11/23/2004 |
| 6696296 | Leak detector for sealed optical devices This invention discloses a method for detecting a leak from a sealed optical device. The method includes steps of: A) injecting a target gas with no performance interference to the sealed optical device for leak detection followed by sealing the sealed op... | 02/24/2004 |
| 6627443 | Colored composition The present invention relates to new color compositions which are especially suitable to be used in oxygen indicators. The compositions comprise iron(II), an agent containing pyrogallol entities and an organic acid.... | 09/30/2003 |
