Fluid power interlock system
    1.
    发明授权

    公开(公告)号:US06550368B2

    公开(公告)日:2003-04-22

    申请号:US10039548

    申请日:2001-10-25

    IPC分类号: F15B1100

    摘要: A fluid power interlock system and method for providing same including a circuit having a first valve shiftable between a first and second state having an input and a pair of selectively operable first outputs. One of the first outputs is operatively connectable to a first actuator and the other of the first outputs is operatively connected to a second valve shiftable between a first and second state. The second valve has a pair of selectively operable outputs, one of the second valve outputs is operatively connectable to a second actuator, and the other of the second valve outputs is operatively connected to the first valve and provides a pilot signal thereto for permitting the first valve to shift from a first state to a second state. Shifting state of either of the first and second valves interrupts the pilot signal thereby preventing the non actuated valve from being actuated and shifting state. The system may also include a manifold, wherein the first and second valves are secured to the manifold.

    Apparatus and method for transferring samples from a source to a target

    公开(公告)号:US20060266130A1

    公开(公告)日:2006-11-30

    申请号:US11311558

    申请日:2005-12-19

    IPC分类号: G01N1/26 G01N1/16

    CPC分类号: G01N35/10 B03C1/286 G01N35/04

    摘要: A transfer unit for transferring a sample from a source vessel to a target vessel. The transfer unit includes a transfer device having a pin tip with a central bore terminating at a bottom wall, an actuating element movably disposed in the pin tip bore, an actuator rod for moving the actuating element and a compensating device connected between the actuating element and the actuator rod. The actuator rod moves the actuating element between a first position adjacent the tip bottom wall and a second position away from the bottom wall. Movement of the actuating element causes a sample in proximity to the pin tip to be alternately collected and released from the pin tip. Such movement also defines a stroke length for the actuator rod, wherein the compensating device compensates for any variations in the actuator rod stroke length. The transfer unit further includes a tip ejector for removing the disposable tips from the transfer device and a tip loading station for applying the tips to the transfer device.