...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 4538290 | Apparatus for detecting an abnormality in paperlike material An X-ray generating apparatus for detecting an abnormality in paperlike material, wherein the paperlike material is irradiated by X-rays and the secondary X-ray from the paperlike material is detected and compared against an X-ray emission standard to det... | 08/27/1985 |
| 4536239 | Multi-layer circuit board inspection system An inspection system for use in the fabrication of circuit boards of multiple, precisely registered layers. Each layer that is to be precisely registered within the circuit board is formed with at least two targets, each target corresponding in position t... | 08/20/1985 |
| 4499540 | Device for the testing of bodies comprising periodic structures The invention relates to a device for testing a body which comprises periodic structures. The device includes an image forming device for determining measurement signals representing the periodic structures, and a further electronic device. This electroni... | 02/12/1985 |
| 4490833 | X-Ray photographic inspecting device An X-ray photographic inspecting device for inspecting a welded part such as, for example, a vertical welded part on a wall to be inspected like the wall of a metal tank, which has a body movable at the upper edge of the wall to be inspected and supported... | 12/25/1984 |
| 4470144 | Coaxial-type carbon dioxide gas laser oscillator A coaxial-type carbon dioxide gas laser includes an oscillator comprising a gas inlet for introducing gas into a discharge tube through a gas supply chamber having a hollow cylindrical body which serves to disturb the gas flow and orientate the gas toward... | 09/04/1984 |
| 4449226 | Vehicle wheel testing or inspection systems This invention relates to inspection or X-ray testing system for vehicle wheels consisting of a rim and a supporting structure of the kind comprising an X-ray tube, and X-ray screen with a post-positioned monitor and a system for reception of the wheel fe... | 05/15/1984 |
| 4415980 | Automated radiographic inspection system In an automated real-time radiographic inspection system for detecting flaws, defects or inhomogeneities in manufactured objects, the objects (10, 11, 12, . . . ) to be tested are moved on a conveyor (20) in succession past an X-ray source (30). Penetrati... | 11/15/1983 |
| 4411014 | Tool for inspecting the upper end of a string of casing set in the bottom of a body of water An inspection tool for detecting any flaws or defects in the upper end of a string of casing set in the bottom of a body of water. The tool has a cylindrical housing carrying a radiographic-sensitive film which fits over the open end of the string of casi... | 10/18/1983 |
| 4374326 | Method for determining the proportion of at least one material in a moving mixture of materials The proportion of a radioactive material in a moving mass of material is determined with a sensor which derives an output signal proportional to the mass of radioactive material. The output signal is calibrated against known reference values to give a qua... | 02/15/1983 |
| 4359639 | Method of and apparatus for determining the nature of transported material A coal/stone mixture transported on a conveyor is investigated by subjecting it to two radiation beams of differing energies. In a preferred embodiment, the higher energy radiation is collimated into a pencil beam and the lower energy radiation into a fan... | 11/16/1982 |
| 4358685 | Cooled film cassette for gamma radiography A cassette particularly for supporting a gamma radiography film (12). Said cassette comprises a channel section bar (1) with two flanges (3, 4) to which a tube (5, 7) is welded. A cooling fluid is made to flow through said tube. The film needs cooling whe... | 11/09/1982 |
| 4335308 | Inspection of underwater structures A radiation detector for use in an underwater environment, comprising a radiation detector tube having a metal case out of one end of which extends an output lead wherein the said end of the tube is encased in a resilient water-proof compound so as to pre... | 06/15/1982 |
| 4256965 | High energy fluoroscopic screen A high energy fluoroscopic screen for converting photons into light. A hiZ foil converts a portion of the photon flux field from a specimen irradiated by photons into secondary radiations which cause a phosphor layer to luminesce. A polycellular image co... | 03/17/1981 |
| 4227081 | Method of evaluating the integrity of the outer carbon layer of triso-coated reactor fuel particles This invention relates to a method for determining defective final layers of carbon on triso-coated fuel particles and the like. Samples of the particles are subjected to a high temperature treatment with gaseous chlorine and thereafter radiographed. The ... | 10/07/1980 |
| 4196353 | Microradiographic microsphere manipulator A method and apparatus for radiographic characterization of small hollow spherical members (microspheres), constructed of either optically transparent or opaque materials. The apparatus involves a microsphere manipulator which holds a batch of microsphere... | 04/01/1980 |
| 4172224 | Process for the detection of micro-cracks A process for the nondestructive testing of ceramic objects to detect the presence of defects and micro-cracks in the surface in which a solution of silver nitrate is applied to the surface of the object which penetrates into the surface defects, drying t... | 10/23/1979 |
| 4165461 | Detecting apparatus for inserts, thickness unevenness or impurities Radiant rays irradiated from the source penetrate through an object in which inserts or the like are disposed at some distances. A radiant ray detector is provided at the opposite side of the object to the source to detect the radiant rays passed through ... | 08/21/1979 |
| 4092537 | Diagnostic apparatus and method for gas turbine engines The passage of foreign objects such as bullets or stones through a gas turbine engine compressor is observed by directing beams of x-radiation through the engine, receiving the beams on fluorescent screens, to form fluorescent images, intensifying the flu... | 05/30/1978 |
| 4064440 | X-ray or gamma-ray examination device for moving objects This apparatus obtains information about the interior of optically opaque objects rectilinearly translated therethrough. This apparatus assures the conformity of objects to predetermined constraints for purposes of quality control, and enables content ide... | 12/20/1977 |
| 4051369 | Method for inspecting nuclear fuel rod or irradiation capsule A method for inspecting a nuclear fuel rod or irradiation capsule in which a heat transfer medium consisting of a liquid metal having a radioactive element uniformly admixed therewith is charged, e.g. poured, into a gap defined between the nuclear fuel ma... | 09/27/1977 |
| 3999067 | High speed radiation scanning technique for simultaneously determining the pitch and eccentricity of an encased oil A method of determining the pitch and eccentricity of the winding of a coil unit is provided. It specifically relates to nondestructively examining completely encased heating coils used to simulate the heat generated from fuel rods in reactor studies. The... | 12/21/1976 |
| 3993906 | Underwater radiographic apparatus An inflatable bag is inserted through a small orifice in the side wall of a submerged, liquid-containing hollow member to be radiographed. The inflatable bag is directed to a chosen location within the hollow member, where it is inflated, displacing the l... | 11/23/1976 |
| 3992627 | Diagnostic apparatus This invention concerns an apparatus for producing real time and recorded pictures of the internal parts of a gas turbine engine, during the operation of the engine, the pictures being produced by directing high energy X-rays at the engine and deriving th... | 11/16/1976 |
| 3956631 | Process for non-destructive inspection A process for non-destructive inspection of a fusion bonded laminated article comprises disposing a pattern of material on a fusible adhesive layer disposed between two layers of the article. The layers and adhesive are fused together wherein the fusing c... | 05/11/1976 |