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    • 3. 发明授权
    • High voltage, high current fuse with combustion assisted operation
    • 高电压,高电流保险丝,辅助燃烧辅助操作
    • US4489301A
    • 1984-12-18
    • US472556
    • 1983-03-07
    • Peter D. JohnsonWillard T. Grubb
    • Peter D. JohnsonWillard T. Grubb
    • H01H85/055H01H37/76
    • H01H85/055
    • A high voltage fuse comprises one or more fusible strips or wires (fusible elements) electrically connected between nonfusible external electrical connection means with at least one portion of the fusible element ("a rapid melting portion") being designed to melt open when the current exceeds a given value for a given period of time. The fuse further comprises exothermic material, disposed on electrically-conductive wire, which is placed adjacent to portions of the fusible element. Electric circuit connection means connect the electrically-conductive wire to electrically opposite sides of the rapid melting portion. The electrical circuit connection means provides for either parallel or series connection of the wire surrounded by the exothermic material. In operation, during the passage of a sufficiently high current, an arc develops in the immediate vicinity of the rapid melting portions and the voltage drop occurring across this arc supplies power to the electrically-conductive wire which ignites the exothermic material so as to either blast or melt away specific remaining portions of the fuse. As a result, a plurality of series connected arcs are formed so that the sum of the voltages across the arcs increases to a level sufficient to bring the current through the fuse to a zero value in a short time.
    • 高压熔断器包括一个或多个可熔接的条或电线(可熔元件),其电连接在不可熔的外部电连接装置与至少一部分易熔元件(“快速熔化部分”)之间,其设计成当电流超过 给定时间的给定值。 保险丝还包括设置在导电线上的放热材料,其放置成与易熔元件的部分相邻。 电路连接装置将导电线连接到快速熔化部分的电气相对侧。 电路连接装置提供由放热材料包围的线的并联或串联连接。 在操作中,在足够高的电流通过期间,电弧在快速熔化部分的紧邻附近发生,并且跨该电弧发生的电压降向引导放电材料的导电线供电,以便喷射 或熔化保险丝的特定剩余部分。 结果,形成多个串联连接的电弧,使得跨过电弧的电压之和增加到足以使电流在短时间内通过熔丝的零电平。
    • 4. 发明授权
    • Relative humidity sensitive material
    • 相对湿度敏感材料
    • US4373391A
    • 1983-02-15
    • US257081
    • 1981-04-24
    • Peter D. Johnson
    • Peter D. Johnson
    • G01N27/12H01C13/00
    • G01N27/121Y10S252/963
    • A relative humidity sensitive material comprises a mixture of at least one hygroscopic salt and an at least partially electrically conductive metal based powder. Each salt in the relative humidity sensitive material has a cationic constituent selected from the group consisting of the alkali and alkaline earth metals and an anionic constituent selected from the group consisting of a chlorate, perchlorate, and chloro aluminate. The metal based powder preferably comprises a metal or metal oxide powder or powder mixture including such constituents as Zr, CO.sub.3 O.sub.4, and MnO.sub.2. Additionally, the material may include a binding agent and a slurry mixture may be formed for placement of the resultant material between electrodes on a substrate so as to form a relative humidity sensor. These sensors are employed either individually or configured in a system used to either indicate or control the relative humidity.
    • 相对湿度敏感材料包括至少一种吸湿盐和至少部分导电的金属粉末的混合物。 相对湿度敏感材料中的每种盐具有选自碱金属和碱土金属的阳离子成分和选自氯酸盐,高氯酸盐和氯铝酸盐的阴离子成分。 金属粉末优选包含包含Zr,CO 3 O 4和MnO 2等成分的金属或金属氧化物粉末或粉末混合物。 此外,该材料可以包括粘合剂,并且可以形成浆料混合物,用于将所得材料放置在基板上的电极之间,以形成相对湿度传感器。 这些传感器单独使用或在用于指示或控制相对湿度的系统中配置。
    • 5. 发明授权
    • High intensity discharge lamp with coating on arc discharge tube
    • 高强度放电灯,带电弧放电管
    • US4281267A
    • 1981-07-28
    • US038464
    • 1979-05-14
    • Peter D. Johnson
    • Peter D. Johnson
    • H01J61/35
    • H01J61/35
    • In high intensity discharge lamps, particularly those that are configured to operate in a particular orientation, end coatings are provided which increase the efficacy of the lamp. In one embodiment of the present invention, reflective end coatings are provided exteriorly and at the ends of the discharge tube except for an approximately semicircularly shaped portion through which the optical output of the lamp radiates. The particular coating pattern provided in the present invention reduces the number of internal reflections occurring within the discharge tube and accordingly increases the efficacy of the lamp.
    • 在高强度放电灯中,特别是被配置为以特定方向操作的放电灯,提供了提高灯的功效的端部涂层。 在本发明的一个实施例中,反射端涂层设置在放电管的外部和端部处,除了大致半圆形的部分,灯的光输出通过该部分辐射。 本发明中提供的特定涂层图案减少了在放电管内发生的内部反射的数量,从而增加了灯的功效。
    • 7. 发明授权
    • Hand-held vehicle exhaust analyzer
    • 手持式汽车排气分析仪
    • US06287519B1
    • 2001-09-11
    • US09421993
    • 1999-10-20
    • Jonathan D. NordmanTimothy J. WolfJohn D. NealTroy J. LieblPeter D. Johnson
    • Jonathan D. NordmanTimothy J. WolfJohn D. NealTroy J. LieblPeter D. Johnson
    • G01N718
    • G01N1/2252G01N1/24G01N33/0009Y10T436/208339Y10T436/25375
    • A hand-held vehicle exhaust analyzer for testing gas content in exhaust emitted from a vehicle is disclosed. The vehicle exhaust analyzer is of a size and weight to be held in a user's hands. The system includes a housing with an inlet receiving exhaust emitted from the vehicle. A sensor assembly is disposed in the housing, receives the exhaust emitted from the vehicle through the inlet, and determines the content of a plurality of different gases in the exhaust. A control system is disposed in the housing and is operatively coupled with the sensor assembly to regulate operations of the sensor assembly and to receive and interpret results of operations of the sensor assembly. A power supplying apparatus is disposed in the housing to deliver power throughout the system. The housing, and all components disposed in the housing have a combined weight of no greater than about five pounds.
    • 公开了一种用于测试从车辆排出的废气中的气体含量的手持式车辆排气分析仪。 车辆排气分析仪具有保持在用户手中的尺寸和重量。 该系统包括具有入口接收从车辆排出的排气的壳体。 传感器组件设置在壳体中,通过入口接收从车辆排出的废气,并确定废气中多种不同气体的含量。 控制系统设置在壳体中并且与传感器组件可操作地耦合以调节传感器组件的操作并且接收和解释传感器组件的操作结果。 供电装置设置在壳体中以在整个系统中传递电力。 壳体和设置在壳体中的所有部件的组合重量不大于约5磅。