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| Number | Title | Issue Date |
| 4798805 | Apparatus and process for pyrolysis and analysis of samples containing organic matter An apparatus for analysis of samples containing organic matter, especially of rock from oil drilling mud, including a loading arm hinged at its base to be movable from a tilted position when it receives a sample-bearing cartridge, which fits on the top of... | 01/17/1989 |
| 4643977 | Process for assessing coke micro-reactivity Micro-reactivity of cokes can be estimated by carbonizing a small sample of powdered coal to form a char and until constant weight at a desired test temperature, then measuring weight loss in a given time.... | 02/17/1987 |
| 4619902 | Total organic carbon analyzer An improved digestion chamber (10) is provided for use in a carbon analysis system. A catalyst (16), selected from the platinum metals group consisting of platinum, rhodium, palladium, osmium, iridium and ruthenium, provides an oxidizing surface for the s... | 10/28/1986 |
| 4613575 | Indicator for determining organic isocyanates on a carrier Organic isocyanates are detected with an indicator comprising bis-4-(dimethylamino)-phenyl-methylenimine-hydrochloride provided on a carrier along with a catalyst for its reaction with the organic isocyanates contained in a tested gas. Through an acid dev... | 09/23/1986 |
| 4519983 | Method and device for determining the organic carbon content of a sample A method and apparatus for determining the total amount of organic carbon in a sample comprising the successive steps of: (a) heating the sample in an inert atmosphere to a first temperature capable of cracking at least a fraction of the organic material ... | 05/28/1985 |
| 4486535 | Method and apparatus for measuring particle size The disclosure relates to an apparatus for measuring the size of gas entrained particles by detecting the rate of incandescent burning of the particles. Entrained particles are passed at a controlled velocity through a heated zone where they are gradually... | 12/04/1984 |
| 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 |
| 4396719 | Method of estimating the insulation life of a resin insulator Either a monitoring resin piece associated with an electrical appliance or a resin piece forming a part of the insulating components of the electrical appliance is taken out after the electrical appliance has been operated for a suitable period of time, a... | 08/02/1983 |
| 4352673 | Method and device for determining the organic carbon content of a sample The method of the invention comprises the successive steps of: (a) heating the sample in an inert atmosphere to a first temperature capable of cracking at least a fraction of the organic material contained in the sample; (b) measuring the amount of organi... | 10/05/1982 |
| 4332770 | Apparatus for analyzing the carbon content of metals An apparatus for analyzing carbon in metals, in which a metallic sample is burned in a current of oxygen in a combustion furnace and the concentration of carbon contained in the metallic sample is calculated from the total concentration of carbon monoxide... | 06/01/1982 |
| 4296087 | Method for producing carbon black In a carbon black manufacturing process a method is provided whereby the off-gas from at least one carbon black manufacturing process is utilized both to lower the temperature of the hot combustion gases and to provide some heat to the hot combustion gase... | 10/20/1981 |
| 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 |
| 4273558 | Determination of total organic carbon in an aqueous sample containing halide ion Total organic carbon in an aqueous sample containing halide ion is determined by preparing an aqueous solution containing an oxidizing agent and mercuric monohalide ion without forming an insoluble precipitate, introducing the sample into the solution so ... | 06/16/1981 |
| 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 |
| 4251221 | Method and apparatus for fine-tuning in carbon black production A method and apparatus for producing carbon black under fine-tuned conditions which comprises measuring a property of the black produced in a tangential introduction of hot gases to produce a vortex operation and adjusting introduction of the hot gases an... | 02/17/1981 |
| 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 |
| 4158610 | Method and apparatus for determining and controlling amount of carbon deposited on a surface by a gas The amount of solid carbon deposited on a surface by a gas during the coking cycle in a coke oven is determined by measuring the thickness by electrical resistance readings, as a function of time, of carbon deposited on a probe passing through the roof of... | 06/19/1979 |
| 4147513 | Method and apparatus for measuring the O2 content of a gas A method and apparatus for measuring the O2 content in an exhaust gas of an internal combustion engine by exposing two resistors to the exhaust gas of an internal combustion engine. The resistance of both resistors varies as a function of the t... | 04/03/1979 |
| 4106908 | Method for the determination of the organic carbon content in mineral-containing materials A method for the determination of the organic carbon content of raw mineral materials, e.g., raw rocks, sediments and the like, is disclosed which comprises pyrolyzing a sample of raw material which is previously crushed at a temperature of between 400° ... | 08/15/1978 |
| 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 |
| 4053281 | Method and apparatus for determining organic carbon in sulfureous compounds Measured sample quantities of sulfureous matter are introduced into a sealed chamber where the samples are pyrolyzed to form sulfur dioxide and sulfur trioxide gases and to oxidize organic substances to form carbon dioxide gas. The gases are then passed t... | 10/11/1977 |
| 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 |
| 3985505 | Combustion system A combustion system includes a combustion furnace for combusting a solid or liquid specimen and converting it to a gaseous mixture. The furnace is positioned in a circulatory loop in which oxygen is introduced to complete the combustion of the specimen in... | 10/12/1976 |
| 3945797 | Process and apparatus for measuring the isotope content of substances labelled with 3 H or 3 H and 14 C isotopes A process for measuring the isotope content of substances containing 3 H or 3 H and 14 C isotopes in the gas phase, by converting the hydrogen content of the sample into water and the carbon content of the sample to a gase... | 03/23/1976 |
| 3941566 | Device for determining carbon activity through pressure A hollow iron capsule of annular shape having an interior layer of Fe0.947 0 and a near absolute internal vacuum is submersed within a molten metal with the inner chamber of the capsule connected to a pressure sensor. Carbon present in the molt... | 03/02/1976 |
