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    • 1. 发明授权
    • Photoflash lamp and method of making same
    • 闪光灯及其制作方法
    • US4059389A
    • 1977-11-22
    • US721604
    • 1976-09-07
    • Donald E. ArmstrongRonald E. SindlingerBernard CohenJohn E. TozierEmery G. Audesse
    • Donald E. ArmstrongRonald E. SindlingerBernard CohenJohn E. TozierEmery G. Audesse
    • F21K5/06F21K5/08F21K5/02
    • F21K5/02
    • A high-voltage type photoflash lamp filled with a filamentary combustible material and oxygen and having a beadless ignition structure comprising a pair of spaced apart lead-in wires with spherically shaped terminations, a glass frit coating over the lead-in wires with scraped-off portions exposing the bare metal of the wire adjacent each termination, and a coating of primer material over the frit-coated terminations and bared portions of the wires. The primer may bridge the wire terminations or comprise separate spaced apart coatings on the respective terminations, with the filamentary combustible being in contact with both terminations to provide a conducting path therebetween. The frit coating is thick enough to prevent preignition short circuits. Also disclosed is a method of making the lamp including the steps of applying a flame to melt down the ends of the lead-in wires to provide smooth and rounded terminations, dipping the wires in a liquid suspension of glass frit, air drying, passing a blade between the wires to scrape away portions of the frit coating and expose bare wire adjacent the terminations, sealing the lead-in wires into one end of a length of glass tubing, dipping the coated lead-in wires into a primer cup to provide a coat of primer over the terminations and scraped portions, and then finishing the lamp.
    • 填充有丝状可燃材料和氧的具有无珠点火结构的高压型闪光灯,包括一对具有球形端接的间隔开的引入线,玻璃料涂覆在引出线上,刮去 在每个终端附近露出金属裸露部分的部分,以及在玻璃料涂覆的端子和导线的裸露部分上的底漆材料涂层。 引物可以桥接引线端子或者在相应的端接件上包括单独的间隔开的涂层,其中丝状可燃物与两个端子接触以在它们之间提供导电路径。 玻璃料涂层足够厚以防止预先点火短路。 还公开了一种制造灯的方法,包括以下步骤:施加火焰以熔化引入线的端部以提供平滑且圆润的端接,将线浸入玻璃料的液体悬浮液中,风干,通过 电线之间的刀片,以刮除玻璃料涂层的一部分并露出邻近终端的裸线,将引入线密封到一段长度的玻璃管的一端,将涂覆的引入线浸入底杯中以提供 在底漆和刮擦部分上涂上底漆,然后整理灯。
    • 5. 发明授权
    • Constant temperature catalytic gas detection instrument
    • 恒温催化气体检测仪
    • US4541988A
    • 1985-09-17
    • US560784
    • 1983-12-13
    • John E. TozierAbraham AnouchiRichard Critchlow
    • John E. TozierAbraham AnouchiRichard Critchlow
    • G01N27/16
    • G01N27/16
    • A constant temperature catalytic gas detection instrument (10) has a gas sensor (14) whose operating temperature is maintained within a predetermined range by a novel control circuit. The gas sensor includes a reference element (16) and an active element (18) on which a metal oxide catalyst reacts with the combustible gas. First and second driver circuits (30 and 36) are provided for presenting operating voltages to the active element (18) and the reference element (16), respectively, of the gas sensor (14). The first driver (30) controls the power to the active element (18), to maintain its temperature within a predetermined operating range. The second driver (36) responds to changes in the power through the active element (18) with respect to the current through the active element (18), causing the current in the reference element (16) to track the current in the active element (18). An indicator (38) connected between the active element (18) and the reference element (16) senses a potential difference therebetween to provide an indication of the concentration of said unknown gas.
    • 恒温催化气体检测仪(10)具有气体传感器(14),其工作温度通过新颖的控制电路保持在预定范围内。 气体传感器包括参考元件(16)和活性元件(18),金属氧化物催化剂在其上与可燃气体反应。 提供第一和第二驱动器电路(30和36),以分别向气体传感器(14)的有源元件(18)和参考元件(16)提供工作电压。 第一驱动器(30)控制有源元件(18)的功率,以将其温度保持在预定的工作范围内。 相对于通过有源元件(18)的电流,第二驱动器(36)响应于通过有源元件(18)的功率的变化,导致参考元件(16)中的电流跟踪有源元件 (18)。 连接在有源元件(18)和参考元件(16)之间的指示器(38)感测到它们之间的电位差,以提供所述未知气体的浓度的指示。