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    • 44. 发明授权
    • Hermetically sealed pyrotechnic device
    • 密封式烟火装置
    • US5138948A
    • 1992-08-18
    • US538774
    • 1990-06-15
    • Joseph L. La MuraRonald C. Wallenburg
    • Joseph L. La MuraRonald C. Wallenburg
    • F42B3/24F42B4/04F42C19/12
    • F42B3/24F42B4/04F42C19/12
    • A cylindrical metal end cap is formed over one end of a thermoplastic tubular casing. A pyrotechnic detonator is ohmically connected to the end cap via an aperture thereof and includes an electrically activated match. The detonator is soldered to the end cap with a solder ring simultaneously with the insertion of the detonator into the end cap aperture to form a hermetic seal. A thermoplastic end cap is heat welded to the other end of the casing to hermetically seal the pyrotechnic material within the casing. The heat welding occurs at the outer surface of the casing and at a temperature lower than the ignition temperature of the pyrotechnic material in the casing. The position of the match within the casing is selected to cause the pyrotechnic material to burn toward the metal end cap to enhance flash production, different length casings producing different flash intensities.
    • 圆柱形金属端盖形成在热塑性管状套管的一端上。 烟火雷管通过其孔径欧姆连接到端盖,并且包括电激活的匹配。 雷管在将雷管插入端盖孔中同时焊接到端盖上以形成气密密封。 将热塑性端盖热焊接到壳体的另一端以将套筒内的烟火材料密封。 热焊接发生在壳体的外表面,并且温度低于壳体内的烟火材料的点火温度。 选择套管内匹配的位置以使烟火材料朝向金属端盖燃烧以增强闪光产生,产生不同长度的壳体产生不同的闪光强度。
    • 46. 发明授权
    • Molded fireworks
    • 成型烟花
    • US4697518A
    • 1987-10-06
    • US011071
    • 1987-02-05
    • Nam S. LauYick J. Lau
    • Nam S. LauYick J. Lau
    • F42B4/04F42B4/00
    • F42B4/04
    • A pyrotechnic device having a maximum explosive effect with a minimum quantity of explosive composition. The device is in the form of a polyurethane plastic foam body molded about a firecracker tube. The firecracker tube contains a small explosive composition charge therein and into which a fuse extends. The tube is sealed at each end by packing means. A polyurethane sealant coating is provided over the tube to seal any openings in the tube and any openings in any interface between the tube, the packing means and the fuse. The sealant serves as a good engaging surface to which the body portion of plastic foam will adhere when molded. When completed, the plastic foam body has a predetermined shape, such as cylindrical, generally spherical, or multifaceted.
    • 具有最小爆炸成分的最大爆炸作用的烟火装置。 该装置是围绕一个爆竹管模制的聚氨酯塑料泡沫体的形式。 爆竹管中含有一个小的炸药组合物,其中保险丝延伸到其中。 管通过包装装置在每一端密封。 在管上方提供聚氨酯密封剂涂层以密封管中的任何开口以及管,填料装置和保险丝之间任何界面中的任何开口。 密封剂作为良好的接合表面,当模制时塑料泡沫的主体部分将粘附到该接合表面上。 当完成时,塑料泡沫体具有预定的形状,例如圆柱形,通常为球形或多面的。
    • 48. 发明授权
    • Radiant energy activated pyrotechnic cap having desiccant therein
    • 辐射能量激活的烟火帽,其中具有干燥剂
    • US4244295A
    • 1981-01-13
    • US2265
    • 1979-01-10
    • John W. Shaffer
    • John W. Shaffer
    • F42B4/04F42B39/00
    • F42B4/04F42B39/00
    • An improved pyrotechnic cap capable of being activated by the radiant energy from an adjacent flashlamp. The cap includes a plastic container with a quantity of pyrotechnic composition hermetically sealed therein. Receipt of the described radiant energy causes activation of the composition whereby the cap produces an audible signal of high intensity (e.g. 158 to 164 decibels at 25 centimeters). The improvement comprises adding a desiccant material within the cap's container atop the pyrotechnic composition to absorb any quantities of moisture which might enter the container and adversely affect the cap's operability.
    • 一种能够被相邻闪光灯的辐射能激活的改进的烟火帽。 盖子包括一个具有气密密封在其中的一些烟火组合物的塑料容器。 接收所描述的辐射能导致组合物的激活,由此盖产生高强度的可听信号(例如在25厘米处为158至164分贝)。 改进之处在于在烟火组合物顶部的帽容器内加入干燥剂材料以吸收任何量的可能进入容器的水分并对帽子的可操作性产生不利影响。