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    • 28. 发明授权
    • Axial flow fan
    • 轴流风机
    • US06491499B1
    • 2002-12-10
    • US09670777
    • 2000-09-27
    • Russel H. MarvinDavid A. Curtis
    • Russel H. MarvinDavid A. Curtis
    • F04D2966
    • F04D29/666F04D29/328F04D29/384
    • An axial flow fan comprises a hub rotatable on a central axis and a plurality of radial blades extending from the hub, each having a root portion adjacent the hub and each having tip portion space radially from the hub and surrounded by an annular band. The root portions are substantially equally spaced circumferentially at their junctions with the hub and at least some of the tip potions are substantially unevenly space circumferentially. The latter is due to the condition that blade centerlines are pivoted through unequal angles about points along the junctions between the hub and the blade root portions.
    • 轴流风扇包括可在中心轴线上旋转的轮毂和从轮毂延伸的多个径向叶片,每个径向叶片具有邻近轮毂的根部,并且每个具有尖端部分空间与轮毂径向包围环形带。 根部在其与轮毂的接合处周向地基本等距间隔,并且至少一些尖端部分在周向上基本上不均匀地空间。 后者是由于叶片中心线绕着毂和叶片根部之间的接合处的点绕着不相等的角度转动的情况。
    • 29. 发明授权
    • Transaction printer
    • 交易打印机
    • US06439454B1
    • 2002-08-27
    • US09694230
    • 2000-10-23
    • Bernard V. MassonDavid J. WalsonRobert J. BriceRobert M. YraceburuRussel H. MarvinMichael V. FellPaul J. VogtEarney StoutenburgDan R. Carrington
    • Bernard V. MassonDavid J. WalsonRobert J. BriceRobert M. YraceburuRussel H. MarvinMichael V. FellPaul J. VogtEarney StoutenburgDan R. Carrington
    • G06F1700
    • G07F17/42B41J2/17513B41J2/1752B41J2/17553B41J13/103G07B1/00G07G5/00
    • A system for issuing printed documents exchangeable for value having interconnected printer and feeder modules. The printer module includes a printing station having a printhead supported for reciprocal movement in a direction transverse to the path of movement of the print medium. A sensor carried by the printhead is operative to sense and read preprinted indicia on the print medium. The feeder module includes a receptacle for storing the print medium as a continuous form. A slot is provided for enabling the insertion of print media external to the feeder module. A gate mechanism blocks the feed slot under predetermined operating conditions. A first drive mechanism is operative to feed the print medium from the receptacle towards the printing station. A severing mechanism is operative to sever the lead document from the supply. A severing sensor detects failure of the severing mechanism. A second drive mechanism in the printer advances the severed print medium through the printer to a location at which the printhead prints indicia on at least a portion of the print medium. Several security features are also provided to inhibit or prevent the unauthorized removal of print medium from the feeder module and to control access to the interior of the modules.
    • 用于发行具有互换打印机和馈线模块的可交换价值的打印文件的系统。 打印机模块包括具有打印头的打印站,该打印头被支撑用于在横向于打印介质的移动路径的方向上往复运动。 由打印头承载的传感器可用于感测和读取打印介质上的预打印标记。 馈送器模块包括用于将打印介质作为连续形式存储的插座。 提供了一个插槽,用于在打印机模块外插入打印介质。 门机构在预定的操作条件下阻止进给槽。 第一驱动机构可操作以将打印介质从容器输送到印刷站。 切断机构可以将铅文件从供应中断。 切断传感器检测到切断机构的故障。 打印机中的第二驱动机构使切断的打印介质通过打印机进入到打印头在打印介质的至少一部分上打印标记的位置。 还提供了若干安全特征以阻止或防止从供料器模块未经授权地移除打印介质并且控制对模块内部的访问。