Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8056399 | Liquid gas vaporization and measurement system and method A liquid gas vaporization and measurement system, and associated method, for efficiently vaporizing a continuous sample of liquid gas, such as liquid natural gas (LNG), and accurately determining the constituent components of the gas. A constant flow of liquid gas s... | 11/15/2011 |
| 7992430 | Sampling device and method for monitoring of liquids Methods and devices for measuring chemical or biological properties of a liquid from a subsurface position are disclosed, wherein a closed casing is submerged in the liquid to be sampled. The flow of the liquid for the sampling is driven by a hydrostatic pressure an... | 08/09/2011 |
| 7493800 | Sampling method A method for sampling a host liquid in a vessel to detect the presence of an undesired liquid in the host liquid and removing host liquid that contains undesired liquid from the vessel, wherein an electrical capacitance probe is employed to detect the presence of th... | 02/24/2009 |
| 7484404 | Liquid gas vaporization and measurement system and method A liquid gas vaporization and measurement system, and associated method, for efficiently vaporizing a continuous sample of liquid gas, such as liquid natural gas (LNG), and accurately determining the constituent components of the gas. A constant flow of liquid gas s... | 02/03/2009 |
| 7407625 | Volume-differential water assay system 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... | 08/05/2008 |
| 7393508 | Valve arrangement The valve arrangement comprises a predetermined number of individual valve functionalities, arranged in a manner parallel to each other. A fixed connector plate (3) has a number of sample funnel tubes (6) and output connections (8) for forward t... | 07/01/2008 |
| 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 |
| 7304588 | Monitoring technology An apparatus for monitoring an article or system, particularly an LP or propane tank, includes a transmission unit, a base unit and a host unit. The transmission unit is disposed on or near the article or system and detects at least one parameter related to the arti... | 12/04/2007 |
| 7220383 | Method and instrument for automated analysis of fluid-based processing systems An analytical apparatus to monitor fluid systems has at least one extraction module having a raw-sample reservoir connected by input fluid conduit to individual ones of said fluid systems, to extract raw samples for analysis from said fluid systems, one or more modi... | 05/22/2007 |
| 7157056 | Sample introduction device A sample introduction device is provided that is particularly useful in the critical care environment for the anaerobic withdrawal of small volumes of arterial blood from a sample collection syringe and introduction thereof into a sample chamber of a sensor for anal... | 01/02/2007 |
| 7066011 | Liquid chromatograph and analysis system The present invention aims to provide a liquid chromatograph, an analysis system, and a gradient elution method, which are designed to permit a gradient change of eluent with higher precision and also permit a high sensitive detection or analysis. For attaining the ... | 06/27/2006 |
| 7032444 | Module for extracting gas from an underground liquid and installation equipped therewith This invention concerns a module for extracting samples in gas phase of compounds present in an underground working liquid, the extractor module including a receptacle for the liquid, associated with a device for stirring the liquid, a liquid inlet duct, a liquid ev... | 04/25/2006 |
| 7017392 | System for monitoring dilution The system for monitoring dilution has a commodity being stored separately from a first fluid. The commodity has a predetermined distinguishing parameter (DP2) and the first fluid has a predetermined distinguishing parameter (DP1) being different from ... | 03/28/2006 |
| 6912889 | Generator monitoring, control and efficiency A system for generating electricity includes a generator and an interface. The generator is coupled to the interface and provides data to the interface regarding electricity generation. The interface is coupled to a control node for monitoring and controlling the ge... | 07/05/2005 |
| 6860142 | Method and apparatus for measuring a variable in a lubricant/coolant system An automatic system for monitoring/controlling a variable of a machine or metalworking fluid system also achieves cleaning and optionally, a calibration check of the sensor of the variable. The system includes one or more sensors for variables such as pH, fluid conc... | 03/01/2005 |
| 6823721 | Method and system for mass flow balance accounting A system which receives as inputs various measurements of solids and liquids in a clarification system and, from these measurements, determines the various constituents and their fractional makeup within the system. The measurements may be made manually or mechanica... | 11/30/2004 |
| 6770876 | Mass spectrometer autosampler The present invention relates to an autosampler device useful in high pressure liquid chromatography (HPLC), and more particularly to a device useful for the automated introduction of small sample volumes into a HPLC system. Methods of analyzing low abundant protein... | 08/03/2004 |
| 6758964 | Device for separating phases of a diphasic mixture and its application to the determination of the physical and/or chemical parameters of this mixture A device for separating and renewing phases of a diphasic liquid—liquid mixture, in which a first liquid phase and a second liquid phase are circulated in counter current in a liquid—liquid extraction device. The device is in the form of a straight hollow cylind... | 07/06/2004 |
| 6746863 | Sterilizable probe for extraction of volatile compounds in liquids and their quantitative determination An improved tube probe for measuring volatile compounds in a liquid or gas contained in a reactor or in any other environment is disclosed. The probe is made of a single piece of metal, to one end of which is attached a gas permeable tubing, threaded on a supporting... | 06/08/2004 |
| 6737022 | Fragment collector apparatus A system for separating an aqueous stream of mixed polynucleotides into a series of length-based polynucleotide fractions and collecting one or more of the length-based polynucleotide fractions into separate containers. The system comprises a separation column conta... | 05/18/2004 |
| 6541272 | Pulse introduction membrane extraction apparatus and method for separating and analyzing at least one component in a fluid contaminated with the at least one component An apparatus and method for separating and analyzing a component of a fluid sample that is considered to be a contaminant, and particularly, that is or may be an organic material. The invention is predicated on the introduction of the sample fluid in a pu... | 04/01/2003 |
| 6498040 | HPLC apparatus for fractioning and preparing sample for NMR spectrometry and method of changing mobile phase A high-performance liquid chromatography apparatus and a process for conversion of mobile phase, enabling a trace amount of sample for NMR analysis to be efficiently separated and prepared, includes steps of separating a target ingredient from the sample ... | 12/24/2002 |
| 6467340 | Asphaltenes monitoring and control system The present invention provides a system that monitors and controls the precipitation of asphaltenes in a formation fluid recovered from a subsurface formation or reservoir by using a sensor to make a direct real-time on-site measurement of the relative co... | 10/22/2002 |
| 6420185 | Water contamination concentration apparatus and process An apparatus and methods of utilizing a semi-permeable membrane to concentrate contaminants in a portion of an Ultra Pure Water stream to levels which are detectable by an on-line analyzer. This allows the use of analyzers that would not be able to accura... | 07/16/2002 |
| 6260407 | High-temperature characterization of polymers Rapid characterization and screening of polymer samples to determine average molecular weight, molecular weight distribution and other properties is disclosed. Rapid flow characterization systems and methods, including liquid chromatography and flow-injec... | 07/17/2001 |
| 6257052 | Pump, sample feed and valving for high performance liquid chromatography (HPLC) The disclosed syringe pump and valve assembly utilizes a cylindrical housing having a piston axially moved therein for defining a pump chamber, where the housing is mounted to rotate about its longitudinal axis. A port seat is disposed concentrically of t... | 07/10/2001 |
| 6074880 | Sample analyte containing solution fraction collection system, and method of use Disclosed is a system and method which allows user controlled formation, and ejection of droplets of sample analyte containing solutions, thereby enabling precise user directed fractionalization and distributed collection of sample analytes.... | 06/13/2000 |
| 6058764 | Analytical apparatus, liquid chromatography analyzer and a method therefor A reliable analytical apparatus is provided which can produce a highly reliable analytical Value on the basis of data entered during manual sample preparation which can be easily traced and used in editing of the analytical result of the analyzer because ... | 05/09/2000 |
| 5998217 | Method of introducing standards into a vial A modular vial autosampler has a storage area for vials containing samples to be analyzed and at least one modular sampling station. A vial transfer mechanism lifts a sample vial from the storage section, moves it to a station for identification and then ... | 12/07/1999 |
| 5992221 | Concentration measuring apparatus Pipes provided with each switching valve in intermediate portions thereof for feeding sample solutions to a separation mechanism are joined by a multi-way joint, to reach the separation mechanism through a pump. When all valves are closed while driving th... | 11/30/1999 |
| 5974868 | Downstream monitor for CMP brush cleaners The present invention is a contamination measuring device and method of using the same according to a Chemical Mechanical Polishing (CMP) brush cleaner equipment/technology. A collection device is mounted in a brush cleaning device for collecting effluent... | 11/02/1999 |
| 5873980 | Apparatus and method for recovering solvent A solvent recovery system for an oil and grease test collects and condenses solvent vapors to recover solvent. A vessel having an inlet for sealingly receiving an outlet of a separatory funnel receives solvent from the separatory funnel. The solvent is fi... | 02/23/1999 |
| 5834642 | Downstream monitor for CMP brush cleaners The present invention is a contamination measuring device and method of using the same according to a Chemical Mechanical Polishing (CMP) brush cleaner equipment/technology. A collection device is mounted in a brush cleaning device for collecting effluent... | 11/10/1998 |
| 5777214 | In-situ continuous water analyzing module An in-situ continuous liquid analyzing system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the car... | 07/07/1998 |
| 5773713 | Environmental monitoring of organic compounds Environmental monitoring of low concentration of organic compounds in a medium such as ground water or another environmental fluid is effected by using a diffusion cell (112) having a polymeric membrane formed into a helical tube (125) and immersed in the... | 06/30/1998 |
| 5762877 | Chemical sample concentrating device The present invention advances a chemical concentrating device for use with thin layer chromatographic, gas chromatographic, high pressure liquid chromatographic, and capillary electrophoresis analysis. The concentrating device has a T-shaped member havin... | 06/09/1998 |
| 5734089 | In-situ continuous water monitoring system An in-situ continuous liquid monitoring system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the ca... | 03/31/1998 |
| 5734097 | Analyzer and method for measuring water in liquids An analyzer and method for detecting and measuring the water content in a liquid sample in which the liquid sample is fed from its source to a head space chamber. The flow of liquid to the chamber is then halted, the water molecules in the liquid sample a... | 03/31/1998 |
| 5691206 | Method and device for solid phase microextraction and desorption A device for carrying out solid phase microextraction is a fiber contained in a syringe. The fiber can be solid or hollow. The syringe has a barrel and a plunger slidable within the barrel, the plunger having a handle extending from one end of the barrel.... | 11/25/1997 |
| 5668330 | Aqueous sample testing apparatus Toxicity measuring apparatus comprising a sample reservoir in which an aqueous sample to be tested is stored, a reagent reservoir, a diluent reservoir, a mixing chamber vented via a first valve to atmosphere through an air inlet tube which extends within ... | 09/16/1997 |
