Method and apparatus for withdrawing a layer of material from a vessel
    51.
    发明授权
    Method and apparatus for withdrawing a layer of material from a vessel 失效
    从容器中取出材料层的方法和装置

    公开(公告)号:US4622141A

    公开(公告)日:1986-11-11

    申请号:US665560

    申请日:1984-10-29

    摘要: A method and apparatus is provided for holding first material along with less dense material in substantially separate layers and for effecting removal of at least some of the second material to a location displaced from the layer. The materials are arranged in the two layers with the first material at the bottom of a vessel and with the second material disposed above the first material. An elongate withdrawal conduit projects into the vessel to define (1) an exit port at the wall of the vessel, (2) a confined flow passageway communicating with the exit port within the vessel, and (3) at least one withdrawal aperture with the uppermost portion of any withdrawal aperture being lower than the uppermost portion of the exit port. The upper surface of the first material layer is maintained below the conduit while flow of the second material from the second material layer is effected into and through the conduit via the withdrawal aperture.

    摘要翻译: 提供了一种方法和装置,用于将第一材料与不太致密的材料一起保持在基本上分离的层中,并且用于将至少一些第二材料移除到从该层移位的位置。 这些材料被布置在两层中,第一种材料位于容器底部,第二种材料设置在第一种材料之上。 细长的取出导管伸入容器中以限定(1)在容器壁处的出口,(2)与容器内的出口连通的密闭流动通道,和(3)至少一个抽出孔,其中 任何取出孔的最上部比出口的最上部低。 第一材料层的上表面保持在管道下方,同时来自第二材料层的第二材料的流动通过抽出孔进入和穿过导管。

    Process for cell separation
    52.
    发明授权
    Process for cell separation 失效
    细胞分离过程

    公开(公告)号:US4605558A

    公开(公告)日:1986-08-12

    申请号:US602461

    申请日:1984-04-20

    申请人: Wallace Shrimpton

    发明人: Wallace Shrimpton

    摘要: A process for the separation of X sperm and Y sperm by phenotypic differences in a gravity separation process wherein an osmolality gradient is provided within the separation vessel, the osmolality preferably being in inverse relationship to the density gradient.

    摘要翻译: 在重力分离过程中通过表型差异分离X精子和Y精子的方法,其中在分离容器内提供渗透压浓度,重量摩尔渗透压浓度优选与密度梯度成反比关系。