A simplified pump system may include a bellow having a suction valve, a stem, and a fluid lock wherein the product flow into and out of a pump chamber formed by the bellow and stem is controlled by the suction valve and fluid lock.
申请公布号
WO2012088239(A2)
申请公布日期
2012.06.28
申请号
WO2011US66423
申请日期
2011.12.21
申请人
MEADWESTVACO CALMAR, INC.;BOES, ERWIN;DE REGT, JEROEN D.
