Bizarre Patents
A coffin, for allowing inclination for display of a deceased person in a natural position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7255834 | Method and devices for improving the dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O A method and device are provided for dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O in an automatic elemental analyzer. A combustion reactor is provided with a sampling device and an oxygen feed line. Cont... | 08/14/2007 |
| 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 |
| 7141211 | System for determining total sulfur content In order to determine the total sulfur content of a sample (1), the sample is uniformly combusted with a flame (8). The combustion product sulfur dioxide is fed to a gas chromatograph (15) in which it is separated from other combustion products ... | 11/28/2006 |
| 7070738 | Analyzer with variable volume ballast chamber and method of analysis An analyzer having a combustion furnace includes a gas flow stream including a combustion detector in the stream of byproducts of combustion and a variable volume ballast chamber for receiving byproducts of combustion and which has a movable piston which moves in re... | 07/04/2006 |
| 7002728 | Electrophoretic particles, and processes for the production thereof Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating. ... | 02/21/2006 |
| 6960477 | Closed heat-decomposing appliance, pretreatment method of sample using it, analytical method and device therefor Disclosed are a closed heat-decomposing appliance comprising a heating section with one side closed and other side having common ground portion, screw portion or O-ring-mounted portion and a closed introducing section that allows to connect to this heating section a... | 11/01/2005 |
| 6764857 | Systems and methods for measuring nitrate levels The systems and methods described herein relate to the measurement of nitrate levels in a sample of gas, for example, air, exhaust, or other sources of gas. Moreover, the systems and methods described herein are capable of operating using short sample collection per... | 07/20/2004 |
| 6653143 | Process and device of elemental analysis Elemental analysis of a sample is carried out in an oxygen atmosphere in a combustion reactor and the volume of oxygen required for analysis is determined by means of the algorithm... | 11/25/2003 |
| 6623699 | Analyzing system for high accuracy nitrogen determination An analyzer compensates for gas flow perturbations by providing a makeup flow of carrier gas to maintain the pressure and/or flow rate of analyte and inert gas through a detector constant such that a accurate determination of a low concentration of an ana... | 09/23/2003 |
| 6455317 | Method of controlling a chemical process by microwave radiation A system and method for controlling a microwave heated chemical process is disclosed. Time varying concentrations of some chemical substances within fumes in the microwave oven are monitored to detect concentration variations for which responses are known... | 09/24/2002 |
| 6033912 | Method of controlling a chemical process heated by microwave radiation A system and method for controlling a microwave heated chemical process is disclosed. Time varying concentrations of some chemical substances within fumes in the microwave oven are monitored to detect concentration variations for which responses are known... | 03/07/2000 |
| 5972711 | Microwave assisted chemical processes A method for microwave assisted chemical processes is disclosed that comprises applying sufficient microwave radiation to a temperature-monitored mixture of reagents, with at least one of the reagents being thermally responsive to electromagnetic radiatio... | 10/26/1999 |
| 5840583 | Microwave assisted chemical processes A method for microwave assisted chemical processes is disclosed that comprises applying sufficient microwave radiation to a temperature-monitored mixture of reagents, with at least one of the reagents being thermally responsive to electromagnetic radiatio... | 11/24/1998 |
| 5783426 | Semiconductor device having semiconductor chip mounted in package having cavity and method for fabricating the same The semiconductor device disclosed has a cap in which, at an undersurface periphery portion, a plurality of looped projections are formed for intercepting a continuous bubble path that may be formed for a gas to escape. The preparatory stage steps of asse... | 07/21/1998 |
| 5633170 | Method and apparatus for nitrogen oxide analysis A method and apparatus for the chemiluminescent determination of NO/NOx in a sample gas is disclosed in which the NOx portion of the gas stream is catalytically converted in a preconditioned vitreous carbon bed at a relatively low te... | 05/27/1997 |
| 5612225 | Process and apparatus for determining total nitrogen content by elemental analysis This invention provides a process for determining the nitrogen content of a sample involving (a) combusting the sample in a combustion reactor in the presence of oxygen, which oxygen is introduced into the combustion reactor in pulse form; (b) reducing th... | 03/18/1997 |
| 5185268 | Method for the determination of total nitrogen including adding an alkali metal halide or an alkaline earth metal halide to the sample A method of determining nitrogen in various nitrogenous materials, wherein the materials are combusted by being brought into contact with a solid metallic catalytic mass, in the presence of an oxygenated gas, so as to convert the nitrogen into NO. This is... | 02/09/1993 |
| 5061638 | Nitrate analyzer A system and method for determining the concentration of nitrate ions in a nitrate ion-containing water sample which also contains chloride ions and bicarbonate ions is disclosed. The potentially interfacing chloride ions are suppressed by reaction with a... | 10/29/1991 |
| 5055260 | Reactor analysis system Gas samples withdrawn from within a reactor vessel (or process in general), as well as from one feed gas thereto, are passed to gas analyzers for particular components or impurities desired to be measured. The response time of the reactor analysis system ... | 10/08/1991 |
| 4946797 | Microwave-based Kjeldahl method A rapid, microwave-based Kjeldahl digestion method wherein microwave energy is applied to an acid/sample mixture at the beginning of, and thereafter during the digestion. After the application of microwave energy is discontinued, the digestate is diluted ... | 08/07/1990 |
| 4891186 | Reactor analysis system Gas samples withdrawn from within a reactor vessel, as well as from the feed gas thereto, are passed to gas analyzers for particular components or impurities desired to be measured. The response time of the reactor analysis system employed is advantageous... | 01/02/1990 |
| 4776690 | Method and reagent gas for the analysis of nitrogen-containing components using atomic emission spectrometry The nitrogen-selectivity of an atomic emission detection system is enhanced by use, as the reagent gas, of a single gas or a mixture of gas components containing oxygen and hydrogen in an oxygen/hydrogen molar ratio of about 1:10 to 10:1.... | 10/11/1988 |
| 4645746 | Digestion process An improved process for quantitatively determining nitrogen content or other elemental content in a wide variety of materials. The process avoids the use of conventional catalysts, is simpler and faster than previous techniques, and results in a very high... | 02/24/1987 |
| 4645745 | Digestion process An improved process for quantitatively determining nitrogen content in a wide variety of materials. The process avoids the use of conventional catalysts, is simpler and faster than previous techniques, and results in a very high degree of accuracy. The pr... | 02/24/1987 |
| 4526755 | Gas analyzer or the like An analyzer for natural gas to determine the existence of and concentration of wanted and unwanted sulfur compounds and odorizing agents.... | 07/02/1985 |
| 4525328 | Carbon, hydrogen, and nitrogen analyzer The specification discloses an analyzer for determining the carbon, hydrogen, and nitrogen content of an organic material. The analyzer includes a vertically oriented, U-shaped furnace including a combustion chamber containing a crucible in which the samp... | 06/25/1985 |
| 4467038 | Predetector reservoir for chromatographic analysis instrument A gas chromatographic apparatus is provided which comprises a gas chromatography column, a detector and an extended conduit between the column and the detector, the conduit providing means for flow of a gas so as to enable essentially complete elution of ... | 08/21/1984 |
| 4456580 | Automatic apparatus for analyzing metals An automatic apparatus for loading and feeding crucibles to and removing crucibles from a combustion furnace in which metals are burned for analyzing them. The apparatus has a part for automatically transporting crucibles to a sample weighing position one... | 06/26/1984 |
| 4401763 | Analytical method for the determination of nitrogen, carbon, hydrogen and sulfur or chlorine and apparatus therefor An analytical method for the independent or simultaneous determination of any number of elements selected from the group consisting of nitrogen, carbon, hydrogen and sulfur or chlorine in samples, which comprises passing an oxygen gas through a reaction t... | 08/30/1983 |
| 4351801 | Combustion apparatus for use in elementary analysis The invention relates to a combustion apparatus for elementary analysis. Solid material samples contained in small tubes are introduced into the combustion apparatus by means of an automatic inserting device. The automatic inserting device is provided wit... | 09/28/1982 |
| 4293308 | Method and apparatus for the analysis of sulphur contents in samples A method and apparatus for the quantitative determination of very small percentages of sulphur in sample analysis is carried out by means of sample combustion in a helium current temporarily enriched with oxygen, subsequent catalytic oxidation and reducti... | 10/06/1981 |
| 4257772 | Method and apparatus for chemical analysis of specimens A method and apparatus are disclosed for chemical analysis of specimens in order to detect the presence and percentages of given chemical elements (C, N, H, S and O) therein. Said specimen is subjected to known chemical treatments in order to reveal said ... | 03/24/1981 |
| 4234315 | Gas chromatographic analysis method and apparatus A quantitative analysis system is provided wherein a sample is decomposed in a decomposition chamber, the reaction product mixture is passed to a first chromatographic zone wherein a first separation of the reaction mixture is carried out, the last major ... | 11/18/1980 |
| 4066402 | Analytical method and apparatus for determination of total nitrogen and/or carbon contents in aqueous systems An analytical method for determining rapidly and accurately the total nitrogen and/or carbon contents in aqueous systems containing nitrogenous and/or carbonaceous materials, which comprises introducing an aqueous solution containing nitrogenous and/or ca... | 01/03/1978 |
| 4054414 | Gas chromatographic method for the multi-elemental microanalysis of organic materials Microanalytical method for the simultaneous determination of the elements, carbon, hydrogen, sulfur, chlorine, bromine, iodine and nitrogen in a single, small sample of an organic material, said method comprising the steps of: (a) substantially instantane... | 10/18/1977 |
| 4025309 | Carbon nitrogen test system An analytical method for determining the elemental carbon and nitrogen contents of a sample. The sample, as a liquid or in finely divided solid form is placed in an evacuable pressure vessel and is then oxidized with a cupric oxide oxidizing agent to conv... | 05/24/1977 |
