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| Number | Title | Issue Date |
| 4333339 | Steam trap monitor A novel temperature indicator having a cover layer and including a backing strip with an embossed well stamped therein is provided (in the alternative, the cover layer may be embossed) to form a pocket. The well may contain a matrix carrier which is impre... | 06/08/1982 |
| 4298348 | Time-temperature indicator composition An improved recording device is described, useful for measuring the integrated time-temperature or integrated radiation-dosage history of an article, comprising a substrate onto which 2,4-hexadiyn-1,6-diol-bis-(p-chlorobenzenesulfonate) is deposited. The ... | 11/03/1981 |
| 4272988 | Multiple signal thermoparticulating coating A composition is disclosed of a solution of a resinous carrier and at least two compounds which thermoparticulate at different temperatures between 60° and 200° C. A coating is made by applying the composition to a portion of an electrical apparatus exp... | 06/16/1981 |
| 4273674 | Thermal detecting paint compositions Sets of certain halogenated aromatic organic compounds, for example, N-alkyl tetrahalophthalimides, have been found useful as chemical tags when employed in a thermal particulating organic resin. Improved tagging performance has been achieved over extende... | 06/16/1981 |
| 4259080 | Method of determining discontinuities in the heat exchanger of a warm air furnace Method of determining discontinuites in the heat exchanger of a warm air furnace directed to spraying the burner within the furnace with a non-corrosive solution of sodium carbonate. The solution is sprayed on the burner after it is heated and in operatio... | 03/31/1981 |
| 4232552 | Temperature indicating compositions of matter Novel and stable compositions of matter are disclosed which change color sharply upon a transition from a liquid state to a solid state or from a solid state to a liquid state, which change of state is at substantially a predetermined temperature correspo... | 11/11/1980 |
| 4229974 | Petroleum and synthetic grease thermoparticulating coating A petroleum or synthetic grease is used to protect electrical apparatus from overheating. The grease is applied to a portion of an electrical apparatus which is exposed to a gas stream, particularly to portions subjected to operating temperatures of about... | 10/28/1980 |
| 4204428 | Thermal detection system for failure in electrical apparatus and thermal detecting paint compositions A system for detecting thermal breakdown of organic resin coatings is described which can be used for locating failure occurring in electrical apparatus based on the use of a minor amount of a chemical tagging material. The chemical tag can be readily ext... | 05/27/1980 |
| 4189399 | Co-crystallized acetylenic compounds A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C--C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane a... | 02/19/1980 |
| 4179926 | Multiple signal thermoparticulating coating A composition is disclosed of a solution of a resinous carrier and at least two compounds which thermoparticulate at different temperatures between 60° and 200° C. A coating is made by applying the composition to a portion of an electrical apparatus exp... | 12/25/1979 |
| 4168625 | N-thiophthalimide composition for forming thermoparticulating coating A composition is disclosed of an N-thiophthalimide, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermopar... | 09/25/1979 |
| 4151746 | Cyanoethylated composition for forming thermoparticulating coating A composition is disclosed of a cyanoethylated compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a ther... | 05/01/1979 |
| 4149161 | Protecting electrical apparatus with gas generating compounds Electrical apparatus cooled with a stream of hydrogen gas is protected from overheating by applying a coating to a portion of the apparatus which is exposed to the gas stream. The coating contains a compound which decomposes between 80° and 200° C. to p... | 04/10/1979 |
| 4142416 | Carboxylic acid composition for forming thermoparticulating coating A composition is disclosed of a carboxylic acid, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermopartic... | 03/06/1979 |
| 4135399 | Use of an expansion chamber for the production of representative particulate effluent from polymers A gas stream monitoring system monitors a gas stream of a power generator and causes a sample of the gas stream to be collected if its characteristics indicate that a material in the power generator is being thermally degraded. After verifying that the de... | 01/23/1979 |
| 4121458 | Reliable dynamoelectric machine condition monitor Apparatus for sensing overheated electrical insulation through the detection of thermoparticulates in a dynamoelectric machine's cooling gas system is disclosed. The cooling gas as it circulates will entrain thermoparticulates produced in the system when ... | 10/24/1978 |
| 4108001 | Urea composition for forming thermoparticulating coating A composition is disclosed of a urea compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticul... | 08/22/1978 |
| 4105583 | Thermochromic paint for use on plastic substrates A thermochromic paint, which changes color when heated to a certain temperature, and which is particularly suited for use on plastic substrates which are subject to oxidative degradation is disclosed. The improvement comprises the addition to the thermoch... | 08/08/1978 |
| 4102192 | Metallic carboxylate composition for forming thermoparticulating coating A composition is disclosed of metallic carboxylate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermopar... | 07/25/1978 |
| 4102193 | Method for protecting electrical apparatus and thermal detection system using sulfonic acid thermoparticulating coating A composition is disclosed of a sulfonic acid or amine salt thereof, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to pr... | 07/25/1978 |
| 4102809 | Malonic acid composition for thermoparticulating coating A composition is disclosed of malonic acid, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a fluid stream. The solvent in the composition is evaporated to produce a thermo-particul... | 07/25/1978 |
| 4101277 | Detection of incipient faults in hydrogen-cooled generators A method and apparatus are disclosed for the detection of incipient faults in large hydrogen-cooled dynamoelectric machines such as turbine generators. Such machines operate in a hydrogen atmosphere, for cooling, and unavoidably contain some air. The heat... | 07/18/1978 |
| 4074137 | Heated ion chamber detector for a dynamoelectric machine An improved detector apparatus is provided in combination with a gas cooled dynamoelectric machine for detecting the presence of pyrolysate products in the machine gas coolant indictive of localized overheating of certain dynamoelectric machine parts. The... | 02/14/1978 |
| 4056006 | Metal dithiocarbamate composition for forming thermoparticulating coating A composition is disclosed of a metal dithiocarbamate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermo... | 11/01/1977 |
| 4056005 | Blocked isocyanate composition for forming T hermoparticulating coating A composition is disclosed of a blocked isocyanate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermopar... | 11/01/1977 |
| 4046733 | Sulfonic acid composition for forming thermoparticulating coating A composition is disclosed of a sulfonic acid or amine salt thereof, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to pr... | 09/06/1977 |
| 4046512 | Device for indicating overheating in generators The occurrence of excessively high temperatures in areas of a generator exposed to a cooling gas stream is visually indicated by passing a portion of the gas stream through an indicator device which comprises a filter holder containing a gas-permeable, pa... | 09/06/1977 |
| 3995489 | Malonic acid derivative composition for forming thermoparticulating coating A composition is disclosed of a malonic acid derivative, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a ther... | 12/07/1976 |
| 3979353 | Diazonium salt composition for forming thermoparticulating coating A composition is disclosed of a diazonium salt, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticu... | 09/07/1976 |
| 3973439 | Metal acetyl acetonate composition for forming thermoparticulating coating A composition is disclosed of a metal acetylacetonate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermo... | 08/10/1976 |
| 3973438 | Composition for forming thermo-particulating coating which protects electrical apparatus A composition is disclosed of malonic acid, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a fluid stream. The solvent in the composition is evaporated to produce a thermo-particul... | 08/10/1976 |
| 3972225 | Sampling system for power generators A sampling system monitors a gas stream of a power generator and automatically samples the gas stream if its characteristics indicate that a material in the power generator is being thermally degraded. A gas stream monitoring device generates a first sign... | 08/03/1976 |
| 3957014 | Thermoparticulating tape A thermoparticulating tape is disclosed which comprises a flexible fibrous material, a compound which thermoparticulates at a temperature below 200°C dispersed throughout the flexible fibrous material, and a flexible outer coating over the flexible fibro... | 05/18/1976 |
| 3955417 | Grease thermoparticulating coating A grease of a telomer of polytetrafluoroethylene and a perfluoroalkyl polyether is used to protect electrical apparatus from overheating. The grease is applied to a portion of an electrical apparatus which is exposed to a gas stream, particularly to porti... | 05/11/1976 |
