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    • 40. 发明申请
    • PISTON CARTRIDGE
    • 活塞筒
    • WO2008033372A9
    • 2008-06-19
    • PCT/US2007019771
    • 2007-09-12
    • SPX CORPMILLER DOUGLASLANDRUM MICHAELBLACKMAN DONALD EHEIM JAMES M
    • MILLER DOUGLASLANDRUM MICHAELBLACKMAN DONALD EHEIM JAMES M
    • F04B49/08
    • F04B53/162F04B1/0408F04B1/0421F04B1/053F04B1/0538F04B53/16Y10T137/7839Y10T137/7845
    • A piston cartridge having a piston chamber, an inlet port, an outlet port, and a piston moveable between a first position and a second position. Also, the cartridge includes a first barrier positioned between the piston and the inlet port and a first sealing member moveable between the first barrier and the inlet port, wherein the first sealing member seals the inlet port when positioned adjacent to the inlet port but allows the fluid into the chamber when positioned adjacent to the first barrier. In addition, the cartridge also includes a second barrier positioned adjacent to the outlet port and a second sealing member moveable between the piston and the second barrier, wherein the second sealing member seals the outlet port when positioned adjacent thereto but allows the fluid to pass through the outlet port when positioned adjacent to the second barrier.
    • 活塞筒具有活塞腔室,入口端口,出口端口以及可在第一位置和第二位置之间移动的活塞。 而且,盒包括定位在活塞与入口之间的第一阻挡件和可在第一阻挡件与入口之间移动的第一密封构件,其中第一密封构件在定位成邻近入口端口时密封入口端口,但允许 当邻近第一屏障定位时流体进入腔室。 另外,所述盒还包括邻近所述出口定位的第二屏障和可在所述活塞和所述第二屏障之间移动的第二密封构件,其中所述第二密封构件在与所述出口邻近时密封所述出口,但允许所述流体通过 出口端口当被定位为邻近第二屏障时。