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    • 2. 发明授权
    • Modular autoduplex mechanism with simple linkage
    • 具有简单连接的模块化自动双重机制
    • US06290410B1
    • 2001-09-18
    • US09607679
    • 2000-06-30
    • Craig D. SunadaCarl D. BeckettKevin D. O'HaraJeffrey R. Blackman
    • Craig D. SunadaCarl D. BeckettKevin D. O'HaraJeffrey R. Blackman
    • B41J1158
    • B41J3/60G03G15/234
    • A modular duplex media handling system used in conjunction with a simplex media handling print recording apparatus, includes a drive roller having a simple gear linkage. The simple gear linkage provides a fixed rotational relationship between the drive roller and a feed roller of the simplex handling apparatus. A media guide pivots about the drive roller's axle between a first position into which it is biased, and a second position into which it is deflected by a media sheet. From the first position, a media sheet retracting from a print zone can enter the duplex media handling system. From the second position, a media sheet can move from the input tray around the feed roller into the print zone, or move out of the duplex media handling system back into the input tray to await refeeding for second side printing.
    • 与单面介质处理打印记录装置结合使用的模块化双面介质处理系统包括具有简单的齿轮联动的驱动辊。 简单的齿轮联动装置在单面装卸装置的驱动辊和进给辊之间提供固定的旋转关系。 介质引导件绕驱动辊的轴枢转在被偏置到其中的第一位置和第二位置之间,其被介质片偏转到其中。 从第一位置开始,从打印区缩回的介质页可以进入双面介质处理系统。 从第二位置,介质片材可以从进纸盘周围的输入托盘移动到打印区域中,或者从双面打印介质处理系统移出回到进纸盒中,以等待第二面打印的重新进纸。
    • 3. 发明授权
    • Axial cam driven valve arrangement for an axial cam driven parallel
piston pump system
    • 用于轴向凸轮驱动的平行活塞泵系统的轴向凸轮驱动阀装置
    • US5733105A
    • 1998-03-31
    • US618367
    • 1996-03-19
    • Carl D. BeckettKevin D. O'HaraDaniel B. OlsenSteven E. SoarGlenn E. Siemer
    • Carl D. BeckettKevin D. O'HaraDaniel B. OlsenSteven E. SoarGlenn E. Siemer
    • F04B1/12
    • F04B1/12Y10T137/86638Y10T137/8671
    • A reciprocating piston pump provides pulseless delivery of liquid. It is suitable for use in compact environments or for the delivery of small amounts of liquid, as in chromatographic analysis devices. The pump includes two pistons with pumping chambers that are alternately connected to inflow and outflow lines through a control valve. The control valve moves between a first position in which inflow is directed to the first piston chamber and outflow to the second piston chamber, and a second position in which outflow is directed to the first piston chamber and inflow is directed to the second piston chamber. Each outflow pulse from the piston is sustained longer than each inflow pulse, and the outflow pulses are staggered and partially superimposed to provide substantially pulseless delivery of liquid from the pump. A rotating cam moves the pistons of the pumps and the control valve between their operating positions described above. The cam rotates at a constant speed around an axis that is parallel to the axis of movement of the piston pumps. A control surface is carried by and rotated by the cam in one embodiment. Grooves inscribed in the control surface establish and break fluid connections as the cam rotates.
    • 往复式活塞泵提供无脉动的液体输送。 如在色谱分析装置中,适用于紧凑型环境或少量液体的输送。 该泵包括两个具有泵送室的活塞,其通过控制阀交替地连接到流入和流出管路。 控制阀在流入第一活塞室的第一位置和第二活塞室流出的第一位置和第二位置之间移动,在第二位置,流出流向第一活塞室,流入被引导到第二活塞室。 来自活塞的每个流出脉冲比每个流入脉冲持续更长的时间,并且流出脉冲交错并且部分地叠加以提供来自泵的基本上无脉动的液体输送。 旋转凸轮将泵的活塞和控制阀在上述操作位置之间移动。 凸轮围绕平行于活塞泵的运动轴线的轴线以恒定的速度旋转。 在一个实施例中,控制表面由凸轮承载和旋转。 刻在控制面上的凹槽随着凸轮的旋转而建立和断开流体连接。