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22 条记录 (耗时 0.022 秒)

    Rollator
    5.
    外观设计
    Rollator 有权

    公开(公告)号：USD940601S1

    公开(公告)日：2022-01-11

    申请号：US29652476

    申请日：2020-08-28

    申请人： Qingfeng Li

    设计人： Qingfeng Li

    METHOD AND SYSTEM TO VALIDATE WIRED SENSORS
    7.
    发明申请
    METHOD AND SYSTEM TO VALIDATE WIRED SENSORS 有权
    用于验证有线传感器的方法和系统

    公开(公告)号：US20130103350A1

    公开(公告)日：2013-04-25

    申请号：US13440339

    申请日：2012-04-05

    申请人： Jin Jiang ,  Qingfeng Li

    发明人： Jin Jiang ,  Qingfeng Li

    IPC分类号： G06F17/00

    CPC分类号： G06F17/00 ,  H04L67/12 ,  H04Q9/00 ,  H04Q2209/30 ,  H04Q2209/40 ,  H04Q2209/86 ,  H04W4/38 ,  H04W24/04 ,  H04W84/18

    摘要： The present invention provides a method and system using wireless sensors to validate wired sensors used in applications where the requirements on the reliability of wired sensors are stringent. A computing means periodically collects measurements for each variable from the wired and wireless sensors and compares them against an expected value. The expected value is a weighted average of all the measurements for a variable, in which the weight assigned to the measurement from each sensor is determined according to both its reliability and accuracy. As such, measurements are compared with the corresponding expected value for a particular variable. If the difference between a measurement and its corresponding expected value is found to be unacceptable, the validation computer will generate a corresponding alert. Application examples include 1) validating wired sensors used in safety shutdown systems for industrial facilities and 2) validating wired sensors used to monitor storage tanks.

    摘要翻译： 本发明提供一种使用无线传感器来验证有线传感器的方法和系统，其用于对有线传感器的可靠性要求严格的应用中。 计算装置周期性地从有线和无线传感器收集每个变量的测量值，并将其与期望值进行比较。 期望值是对于变量的所有测量的加权平均值，其中根据其可靠性和精度来确定从每个传感器分配给测量的权重。 因此，将测量值与特定变量的相应预期值进行比较。 如果发现测量值与其对应的期望值之间的差异是不可接受的，则验证计算机将产生相应的警报。 应用实例包括：1）验证工业设施安全停机系统中使用的有线传感器; 2）验证用于监控储罐的有线传感器。

    METHOD OF OPERATING A DIRECT DME FUEL CELL SYSTEM
    8.
    发明申请
    METHOD OF OPERATING A DIRECT DME FUEL CELL SYSTEM 审中-公开
    直接二甲醚燃料电池系统的运行方法

    公开(公告)号：US20120270122A1

    公开(公告)日：2012-10-25

    申请号：US13498087

    申请日：2010-09-21

    申请人： Jens Oluf Jensen ,  Qingfeng Li ,  Niels J. Bjerrum ,  Thomas Steenberg

    发明人： Jens Oluf Jensen ,  Qingfeng Li ,  Niels J. Bjerrum ,  Thomas Steenberg

    IPC分类号： H01M8/04 ,  H01M8/06 ,  H01M8/10

    CPC分类号： H01M8/1009 ,  H01M8/103 ,  H01M2300/0082

    摘要： The present invention relates to a method of operating a fuel cell system comprising one or more fuel cells with a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI). The method comprises adjusting the operating temperature of the fuel cell to between 120 and 250° C., supplying an oxidant stream to the cathode, and supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode.

    摘要翻译： 本发明涉及一种操作燃料电池系统的方法，所述燃料电池系统包括具有质子交换膜的一个或多个燃料电池，其中所述膜由包含酸掺杂聚苯并咪唑（PBI）的聚合材料构成。 该方法包括将燃料电池的操作温度调节到120至250℃之间，向阴极供应氧化剂流，并向阳极供应加湿的燃料流，所述燃料流包含二甲醚，其中二甲醚直接 在阳极氧化。

    Magic rollator
    9.
    发明申请
    Magic rollator 失效
    魔术师

    公开(公告)号：US20070170699A1

    公开(公告)日：2007-07-26

    申请号：US11444202

    申请日：2006-05-31

    申请人： Qingfeng Li ,  Sam Liang

    发明人： Qingfeng Li ,  Sam Liang

    IPC分类号： A61G5/10

    CPC分类号： A61H3/04 ,  A61H2003/046 ,  A61H2201/0161 ,  Y10T16/195

    摘要： The present utility model disclosed a main support frame, which has two bushings each set on the right and left side of said main support frame respectively; two supporting pipes, each inserted in one of the bushings of the main support frame; two P-shaped armrests, each connects with one of the supporting pipes; two pairs of front-wheel assembly and rear wheel assembly, each pair of front-wheel assembly and rear wheel assembly is connected with the main support frame; and a seat component comprising a seat body and a folding mechanism, said seat component can be folded in the middle and is set between the left side and right side of main support frame. Said folding mechanism consists of a first branch pipe and a second branch pipe, which hinge joint with each other in the middle, one end of the first branch pipe and the second branch pipe hinge joint with the left side and right side of the main support frame respectively, the other end connect with the two ends of said seat body respectively. The improvements of the magic rollator are that: the structure is simple, it is easy to be folded and the folded volume of it is small, it stands stably and is convenient for storing and transporting, the height of it is adjustable to meet the requirements of different users; the components of it are easy to be processed, the cost is low, meanwhile the components are assembled by bushing parts and jointed together by elastic blocking joints, it is unnecessary to use special tool to mount or dismount it, so it is suitable for customers to use.

    摘要翻译： 本实用新型公开了一种主支架，分别设置在主支架的左右两侧的两个衬套; 两个支撑管，每个插入主支撑框架的一个衬套中; 两个P形扶手，每个与一个支撑管连接; 两对前轮组件和后轮组件，每对前轮组件和后轮组件与主支架相连; 以及包括座椅主体和折叠机构的座椅部件，所述座椅部件可以在中间折叠并且被设置在主支撑框架的左侧和右侧之间。 所述折叠机构包括第一分支管和第二分支管，所述第一分支管和第二分支管在所述中间彼此铰接，所述第一分支管的一端和所述第二支管铰链接头与所述主支撑件的左侧和右侧 另一端分别与座椅主体的两端连接。 魔术卷取机的改进是：结构简单，折叠容易，折叠体积小，稳定，便于储存和运输，高度可调，以满足要求 的不同用户; 其部件易于加工，成本低，同时部件采用套管部件组装，通过弹性阻塞接头连接在一起，无需使用特殊工具进行安装或拆卸，因此适用于客户 使用。

    Sanitary cigarette case
    10.
    发明授权
    Sanitary cigarette case 失效
    卫生烟盒

    公开(公告)号：US07066324B2

    公开(公告)日：2006-06-27

    申请号：US10478156

    申请日：2001-05-25

    申请人： Zhiyong Yin ,  Qingfeng Li

    发明人： Zhiyong Yin ,  Qingfeng Li

    IPC分类号： B65D85/10

    CPC分类号： B65D85/1009

    摘要： A package for cigarettes, including a sanitary cigarette case which can avoid filter tips from being contacted by fingers, so preventing germs on the fingers from spreading into the mouth via the filter tips. The case can include a case body and a case cover and an opening surface of the case body that is parallel with the longitudinal axis of cigarettes. The opening end of the case body can be covered by the case cover, which has a concavity in its longer face. An advantage of this cigarette case is that it is designed so that person can grasp the middle of a cigarette when they remove the cigarette from the cigarette case, thereby preventing the filter tips from being contacted by the fingers, and preventing germs on the fingers from spreading into the mouth via the filter tips. This cigarette case can have a sanitary, convenient, elegant operation, simple manufacturing process and low cost.

    摘要翻译： 一种用于香烟的包装，包括可以避免过滤嘴与手指接触的卫生烟盒，因此防止手指上的细菌通过过滤嘴向口中扩散。 壳体可以包括壳体和壳体盖以及壳体的与香烟的纵向轴线平行的开口表面。 壳体的开口端可以被壳盖覆盖，壳体盖在其较长的表面上具有凹面。 这种烟盒的优点在于，它被设计成当香烟从香烟盒中取出时可以抓住香烟的中间，从而防止过滤嘴与手指接触，并防止手指上的细菌 通过过滤嘴向口中扩散。 这种烟盒可以具有卫生，方便，优雅的操作，制造工艺简单，成本低廉。