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    • 4. 发明授权
    • Appartus and method for protecting signal and communication lines from very high voltage and transient pulses
    • Appartus和用于保护信号和通信线路免受非常高的电压和瞬态脉冲的影响
    • US08570697B2
    • 2013-10-29
    • US13230716
    • 2011-09-12
    • Paul StevensAlex WedinDale Trumbo
    • Paul StevensAlex WedinDale Trumbo
    • H02H3/20H02H3/00
    • H02H3/20
    • Apparatus for protecting a signal line bus driver from overvoltage faults may include a first solid-state switch configured to block current having a positive voltage when open and a second solid-state switch configured to block current having a negative voltage when open. A comparator circuit may produce a output signal responsively to presence of a fault-induced voltage in the signal line that has a magnitude that exceeds the reference voltage. The first and second switches may be connected in series with one another and with the bus driver. The switches may be interposed between the bus driver and an output end of the signal line and may responsively to the comparator circuit output signal.
    • 用于保护信号线总线驱动器免受过压故障的装置可以包括第一固态开关,其被配置为阻止当开路时具有正电压的电流,以及第二固态开关,其被配置为在打开时阻断具有负电压的电流。 比较器电路可以响应于信号线中的故障感应电压的存在而产生输出信号,该电压具有超过参考电压的幅度。 第一和第二开关可以彼此串联并与总线驱动器串联连接。 开关可以插在总线驱动器和信号线的输出端之间,并且可以响应于比较器电路输出信号。
    • 10. 发明授权
    • Electric steam generator having molded plastic lid and base secured
together by a snap-fit connection arrangement
    • 电蒸汽发生器具有通过卡扣配合连接装置固定在一起的模制塑料盖和底座
    • US5305415A
    • 1994-04-19
    • US768564
    • 1991-10-26
    • Paul Stevens
    • Paul Stevens
    • F22B1/28F22B37/44F22B37/04H05B3/82
    • F22B37/44F22B1/284Y10S220/14Y10S220/20
    • A portable electric wallpaper steamer has a generator (G) including a base (1) and lid (2), both injection molded of plastic material. An elastomeric sealing ring (29) is seated in a recess in a circumferential interengagement zone between the lid and base and is held compressed by the interengagement of engagement members (24) on the lid with cooperating engagement members (39) on the base. The lid-engagement members (24) and base-engagement members (39) comprise integrally molded parts of the lid and base and one or both are resiliently deformable so that they can be brought into snap-fit engagement with each other by downward movement of the lid relative to the base to form a steam pressure tight seal. An electric heating element (6) is mounted in the base for heating water therein to generate steam. The lid includes a handle (9), filling port (10), safety valve (13) and a steam outlet port (21) connected to a wall paper steaming plate (W) by a pipe.
    • PCT No.PCT / GB90 / 00431 Sec。 371日期1991年10月29日 102(e)日期1991年10月29日PCT 1990年3月21日PCT PCT。 第WO90 / 13771号公报 日期:1990年11月15日。便携式电动壁纸蒸笼具有包括基座(1)和盖(2)的发生器(G),两者均由塑料材料注射成型。 弹性密封环(29)位于盖和底座之间的周向相互接合区域中的凹部中,并且通过在基座上的配合接合构件(39)与盖上的接合构件(24)相互接合而保持压缩。 盖接合构件(24)和基座接合构件(39)包括盖和基座的一体模制部件,并且一个或两个可弹性变形,使得它们可以通过向下移动而彼此卡扣配合 盖子相对于底座形成蒸汽压紧密封。 电加热元件(6)安装在基座中,用于在其中加热水以产生蒸汽。 盖子包括手柄(9),填充口(10),安全阀(13)和通过管连接到壁纸蒸汽板(W)的蒸汽出口(21)。