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    • 8. 发明公开
    • Valve block assemblies
    • Ventilblockzusammenbau。
    • EP0257797A2
    • 1988-03-02
    • EP87306518.9
    • 1987-07-23
    • PORTON INSTRUMENTS, INC.
    • Farnsworth, Vincent RobertCartier, Paul Kelso III
    • B01J4/00B01J19/00
    • B01J19/0046B01J2219/00394B01J2219/00398B01J2219/0059B01J2219/00725C40B40/10C40B60/14Y10T137/3124Y10T137/314Y10T137/86332Y10T137/87684
    • A valve block assembly having internal delivery channels and a common outlet channel is provided with two delivery valve surfaces with access to the common channel. The common channel comprises easily cleaned linear sections 26, 126 running alternately from one surface to the other, and connecting surface grooves 25, 125 at the valve sites. Diaphragm valves 19, 20, 21 are provided with relief grooves 4a to accommodate deformation of the diaphragm 5. The V-like cross-section of the connecting grooves 25, 125 of the common channel and the conical shape of the nearby outlet 24a of a delivery channel 24 assure that the valve may be opened by only a small actuating force. Reservoirs 10 feeding the delivery channels 24 have an inert atmosphere controlled by pressurizing and venting channels 22, 23 in the valve block 16, 116. Exposure of plastic tubing to oxygen is kept to a minimum. The assembly is particularly adapted for use in a protein sequencer to supply reactants without cross-contamination or oxidative decomposition.
    • 具有内部输送通道和公共出口通道的阀块组件设置有两个具有进入公共通道的输送阀表面。 公共通道包括从一个表面到另一个表面交替运行的容易清洁的线性段26,126以及在阀位处的连接表面槽25,125。 隔膜阀19,20,21设置有释放槽4a以适应隔膜5的变形。公共通道的连接槽25,125的V形横截面和附近出口24a的锥形形状 输送通道24确保阀只能通过小的致动力打开。 供给输送通道24的储存器10具有通过对阀块16,116中的通道22,23进行加压和排气来控制的惰性气体。将塑料管道暴露于氧气中保持最小。 该组合物特别适用于蛋白质测序仪,以提供反应物而不会发生交叉污染或氧化分解。