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    Turbine blade attachment stress reduction rings
    1.
    发明授权
    Turbine blade attachment stress reduction rings 失效
    涡轮叶片附件减压环

    公开(公告)号：US6019580A

    公开(公告)日：2000-02-01

    申请号：US28146

    申请日：1998-02-23

    申请人： Lawrence D. Barr ,  Frederick G. Borns ,  Mark C. Johnson

    发明人： Lawrence D. Barr ,  Frederick G. Borns ,  Mark C. Johnson

    IPC分类号： F01D5/30 ,  B63H1/16

    CPC分类号： F01D5/3007

    摘要： A turbine or compressor disk assembly comprises a plurality of blades attached to a central hub by means of the blade root of each blade engaging a corresponding slot in the hub. According to the principles of the present invention, a turbine or compressor disk assembly includes one or more locally bulging regions extending axially away from the surface of the disk in the vicinity of the bottom contact plane of the disk attachment firtree. The locally bulging regions reduce the peak Macke stress in the disk bottom fillet and blade attachment root. In an illustrative embodiment, two locally bulging regions are incorporated into the disk and the corresponding blades, one of which extends forward from the leading edge of the disk and the other of which extends rearward from the trailing edge of the disk. The rearward locally bulging region has an exaggerated extension which allows the stress reduction ring to form an aft flow discourager as well as functioning to reduce peak stress.

    摘要翻译： 涡轮机或压缩机盘组件包括通过每个叶片的叶片根部连接到中心毂的多个叶片，其接合毂中的相应狭槽。 根据本发明的原理，涡轮机或压缩机盘组件包括一个或多个局部凸起区域，其在盘附接件的底部接触平面附近轴向远离盘的表面延伸。 局部凸起区域减小了圆盘底部圆角和刀片附件根部的Macke应力峰值。 在一个说明性实施例中，两个局部凸起区域被结合到盘和相应的叶片中，其中一个叶片从盘的前缘向前延伸，另一个从盘的后缘向后延伸。 后向局部凸起区域具有夸张的延伸部，其允许应力减小环形成后流动鼓风机以及用于减小峰值应力的功能。

    Apparatus and method for antibody screening, typing and compatibility testing of red blood cells
    2.
    发明授权
    Apparatus and method for antibody screening, typing and compatibility testing of red blood cells 失效
    用于红细胞抗体筛选，分型和相容性测试的装置和方法

    公开(公告)号：US4252538A

    公开(公告)日：1981-02-24

    申请号：US016805

    申请日：1979-03-02

    申请人： Lawrence D. Barr

    发明人： Lawrence D. Barr

    IPC分类号： G01N33/48 ,  G01N33/53 ,  G01N33/80 ,  G01N35/00 ,  G01N35/10 ,  G01N35/02 ,  G01N33/54

    CPC分类号： G01N35/00732 ,  G01N33/48 ,  G01N33/5302 ,  G01N33/80 ,  G01N2035/00752 ,  G01N35/1079 ,  Y10S436/807

    摘要： A dual cavity substrate having a sample compartment for selectively discharging the fluid under test is rotatably mounted in a holder. A monolayer of red blood cells is centrifugally developed on the cavity surfaces of the substrate and, after typing, is subjected to the presence of an antibody which antibody may or may not have an affinity for the antigen of the first layer of red blood cells. A second monolayer of red blood cells is layed on the antibody. One of the two layers of blood cells or the antibody is the element being tested. Should agglutination of the second layer of red blood cells occur, the test is positive. Equipments for various substrate surface preparation procedures as well as for washing, lysing and optical inspection procedures are also described. A method for conducting various tests performable by the apparatus is disclosed.

    摘要翻译： 具有用于选择性地排出待测流体的样品室的双腔衬底可旋转地安装在保持器中。 在衬底的空腔表面上离心显影单层红细胞，并且在分型之后，进行抗体的存在，该抗体可能具有或可能不具有与第一层红细胞的抗原亲和力。 抗体上铺有第二层红细胞。 血细胞或抗体的两层之一是待测试的元件。 如果发生第二层红细胞的凝集，测试是阳性的。 还描述了用于各种基底表面制备程序以及洗涤，裂解和光学检查程序的设备。 公开了一种用于进行由该装置执行的各种测试的方法。