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    • 52. 发明申请
    • Integration of an electrical diode within a fuel cell
    • 在燃料电池内集成一个二极管
    • US20060147769A1
    • 2006-07-06
    • US11028837
    • 2005-01-04
    • Michael MurphyMark MathiasDavid Chow
    • Michael MurphyMark MathiasDavid Chow
    • H01M8/04H01M8/10H01M8/24
    • H01M8/04552H01M8/0202H01M8/04753H01M8/0494H01M8/1007H01M8/241H01M8/2457
    • A fuel cell system that employs a diode electrically coupled between bipolar plates in a fuel cell of a fuel cell stack for preventing the fuel cell between the plates from reversing its polarity. The diode is a thin-sheet p-n diode including doped semiconductor layers and has a thickness relative to the thickness of the MEA in the fuel cell so that the overall stack thickness does not increase. When the fuel cell is operating properly the diode does not conduct and all of the current through the fuel cell goes through the MEA. If the electric load on the stack increases to a level beyond the capability of the fuel cell, where the potential across the fuel cell goes significantly below zero, the diode will begin to conduct so that any current that cannot travel through the MEA with the cell voltage less than one negative forward diode voltage drop is able to go around the MEA through the diode.
    • 一种燃料电池系统,其采用电耦合在燃料电池堆的燃料电池中的双极板之间的二极管,用于防止板之间的燃料电池反转其极性。 二极管是包括掺杂半导体层的薄片p-n二极管,并且具有相对于燃料电池中的MEA的厚度的厚度,使得整个堆叠厚度不增加。 当燃料电池正常工作时,二极管不导通,并且通过燃料电池的电流全部通过MEA。 如果堆叠上的电负载增加到超过燃料电池能力的水平,其中燃料电池两端的电位明显低于零,则二极管将开始导通,使得任何不能通过MEA的电流流过电池 小于1负的正向二极管电压降可通过二极管绕过MEA。
    • 59. 发明授权
    • Interspinous process spacer
    • 棘突间隔
    • US08500778B2
    • 2013-08-06
    • US12162939
    • 2007-01-31
    • Benjamin L. JacksonDavid ChowRobert J. Delurio
    • Benjamin L. JacksonDavid ChowRobert J. Delurio
    • A61B17/70
    • A61B17/7062A61B2017/0256
    • An interspinous process spacer is generally rectangular and may have an upper face that generally opposes a lower face, front and back sides that generally oppose each other, an end side, and a nose that generally opposes the end side. The spacer preferably has rounded edges between the upper face and the front, end, and back sides and between the lower face and the front, end, and back sides. The nose of the spacer is preferably asymmetrical and tapers integrally, distally, and inwardly from the first and second faces to form a generally pointed or rounded distal tip. A spacer may be inserted laterally into the interspinous space through a small, posterior midline incision, allowing the preservation of the supraspinous ligament. One or more spacers may be placed between spinous processes of adjacent vertebrae, and result in distraction of the spinous processes which may limit extension of the spine.
    • 棘突间间隔件通常是矩形的,并且可以具有通常与通常彼此相对的下表面,前侧和后侧相对的上表面,端面和通常与端侧相对的鼻部。 间隔件优选地在上表面与前端,端部和后侧之间以及下表面与前端,端侧和后侧之间具有圆形边缘。 间隔件的鼻部优选地是不对称的,并且从第一和第二面一体地,远端地和向内逐渐变细,以形成大致尖的或圆形的远侧末端。 间隔物可以通过小的后中线切口横向插入椎间盘间隙,允许保留上棘韧带。 一个或多个间隔物可以放置在相邻椎骨的棘突之间,并且导致棘突的分散,这可能限制脊柱的延伸。