Rewritable sign system
    1.
    发明授权
    Rewritable sign system 有权
    可重写标志系统

    公开(公告)号:US06888607B2

    公开(公告)日:2005-05-03

    申请号:US10232787

    申请日:2002-08-29

    摘要: Rewritable signs (100, 1300) that include bistable cholesteric liquid crystal layers (102, 1402, 1404, 1406) are provided. According to one embodiment a rewritable sign (100) is devoid of circuitry for establishing electric fields in localize regions for writing information to the rewritable sign (100), and is consequently inexpensive. In the latter embodiment, a separate information writer (400) that includes an array of pixel electrodes (404) that is driven by an active matrix (602) is used to write information on the rewritable sign. According to another embodiment a rewritable sign (1300) includes three cholesteric liquid layers (1402, 1404, 1406) each of which reflects a different primary color. The three cholesteric liquid crystal layers (1402, 1404, 1406) are interleaved with sets of conductive lines (1316, 1320, 1322, 1324) that are used to apply signals to the cholesteric liquid crystal layers (1402, 1404, 1406) for the purpose of writing information.

    摘要翻译: 提供了包括双稳态胆甾型液晶层(102,1402,1404,1406)的可重写符号(100,1300)。 根据一个实施例,可重写符号(100)没有用于在用于将信息写入可重写符号(100)的本地化区域中建立电场的电路,因此便宜。 在后一实施例中,包括由有源矩阵(602)驱动的像素电极阵列(404)的单独信息写入器(400)用于写入关于可重写符号的信息。 根据另一个实施例,可重写标志(1300)包括三个胆固醇液体层(1402,1404,1406),每个胆固醇液体层反映不同的原色。 三个胆甾型液晶层(1402,1404,1406)与用于将信号施加到胆甾醇型液晶层(1402,1404,1406)的导线组(1316,1320,1322,1324)交错,用于 写信息的目的。

    Planar fuel cell
    3.
    发明授权
    Planar fuel cell 有权
    平面燃料电池

    公开(公告)号:US06127058A

    公开(公告)日:2000-10-03

    申请号:US183459

    申请日:1998-10-30

    IPC分类号: H01M8/24 H01M8/10 H01M8/02

    摘要: A planar fuel cell (20) is provided, including a membrane electrode assembly (23) sandwiched between two current collector assemblies (21, 22). The membrane electrode assembly is a single sheet of a polymer electrolyte membrane with an array of anodes (27) on one side and an array of corresponding cathodes (28) on the other side. The current collectors (25) can be supported by a plastic frame (24), and they have an interconnect tab (26) that provides an electrical pathway to the exterior of the membrane electrode assembly. The interconnect tab is situated to provide electron transfer between the anodes and the cathodes such that the interconnect tab does not traverse the thickness of the polymer electrolyte membrane. When the planar fuel cell is assembled, the interconnect tab is sealed to prevent leaking of fuel or oxidant gases. Fuel is distributed (36) to only one side of the membrane electrode assembly and oxidant is distributed (36) only to the other side.

    摘要翻译: 提供了一种平面燃料电池(20),其包括夹在两个集电器组件(21,22)之间的膜电极组件(23)。 膜电极组件是单片聚合物电解质膜,其一侧上具有阳极阵列(27),另一侧上具有相应阴极阵列(28)。 集流器(25)可以由塑料框架(24)支撑,并且它们具有互连突片(26),其提供到膜电极组件的外部的电通路。 互连突片被设置为在阳极和阴极之间提供电子转移,使得互连突片不穿过聚合物电解质膜的厚度。 当组装平面燃料电池时,互连突片被密封以防止燃料或氧化剂气体泄漏。 燃料仅分散(36)到膜电极组件的一侧,并且氧化剂仅分配(36)到另一侧。

    Portable fuel cell power supply
    5.
    发明授权
    Portable fuel cell power supply 有权
    便携式燃料电池电源

    公开(公告)号:US06268077B1

    公开(公告)日:2001-07-31

    申请号:US09260097

    申请日:1999-03-01

    IPC分类号: H01M810

    摘要: The invention provides a device for generating energy, utilizing a fuel cell. Air is freely guided to the fuel cell, while a fuel gas is provided to the fuel cell from a pressurized fuel supply via a regulator. The portable power supply is most applicable to use with handheld electric devices, and contains a fuel storage means (110) for storing a supply of fuel, a fuel delivery means (120) connected to the fuel storage means, an energy conversion device (140) connected to the fuel delivery means for converting the fuel to electricity. The fuel storage means, the fuel delivery means, and the energy conversion device are all contained in a volume less than 500 cubic centimeters.

    摘要翻译: 本发明提供一种利用燃料电池产生能量的装置。 空气被自由地引导到燃料电池,同时燃料气体通过调节器从加压燃料供给到燃料电池。 便携式电源最适用于手持式电气设备,并且包括用于存储燃料供应的燃料储存装置(110),连接到燃料存储装置的燃料输送装置(120),能量转换装置(140) )连接到用于将燃料转换成电力的燃料输送装置。 燃料储存装置,燃料输送装置和能量转换装置都包含在小于500立方厘米的容积中。