A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electroplating, chemical deposition, and spray paintin
A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electroplating, chemical deposition, and spray painting. The colored coating may be selected from a variety of different colors such as, black, olive green, silver, brown, tan, gray, and white. The colors are typically obtained using conventional pigments and colorants, such as metal oxides. The brass casing exterior surface may be roughened to reduce the gloss or sheen of the casing on the colored coating. The invention includes ammunition cartridges containing a low observable brass casing described above.
대표청구항▼
A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electroplating, chemical deposition, and spray paintin
A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electroplating, chemical deposition, and spray painting. The colored coating may be selected from a variety of different colors such as, black, olive green, silver, brown, tan, gray, and white. The colors are typically obtained using conventional pigments and colorants, such as metal oxides. The brass casing exterior surface may be roughened to reduce the gloss or sheen of the casing on the colored coating. The invention includes ammunition cartridges containing a low observable brass casing described above. een the differential pressure transducer circuit and the exterior door actuator, said exterior door control link being capable of delivering exterior door control signals generated by the differential pressure transducer circuit to the exterior door actuator; and an interior door control link connected between the absolute pressure transducer and the interior door actuator, said interior door control link being capable of delivering interior door control signals generated by the absolute pressure transducer circuit to the interior door actuator. 6. The combination differential and absolute pressure transducer apparatus of claim 4, wherein the absolute pressure sensor comprises a pirani sensor with a resistivity that varies as a function of pressure in the load lock chamber, and wherein the absolute pressure transducer circuit includes a pirani bridge circuit that incorporates the pirani sensor as a resistive element in the bridge circuit, an analog process circuit connected to the pirani bridge circuit to adjust voltage across the pirani sensor as pressure in the load lock chamber varies and thereby keep the bridge circuit in balance, and a relay control circuit that monitors voltage across the pirani sensor and generates the interior door control signal when the voltage across the pirani sensor is at a value that corresponds with said preset absolute pressure value. 7. The combination differential and absolute pressure transducer apparatus of claim 4, wherein the differential pressure sensor of the combination differential and absolute pressure transducer comprises a capacitance manometer pressure sensor in which a capacitance varies as a function of differential pressure across a diaphragm that is positioned with the load lock chamber pressure on one side of the diaphragm and ambient atmospheric pressure of the room on another side of the diaphragm, and wherein the d
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Cronenwett Duane (725 Hummingbird Way North Palm Beach FL 33408) Gottfried Robert W. (748 Hi Mount Rd. Palm Beach FL 33480), Apparatus and method for injection tree with antibiotics, nutriments or the like.
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