公开(公告)号：US4810096A

公开(公告)日：1989-03-07

申请号：US36006

申请日：1987-04-08

Applicant: Andrew J. Russell ,  Colin Calvert

Inventor： Andrew J. Russell ,  Colin Calvert

IPC: G01N21/13 ,  G01N21/25 ,  G01N21/59 ,  G01N21/01

CPC classification number: G01N21/253 ,  G01N2201/0446

Abstract: A small, compact plate reader is disclosed for microtitre plates. The reader comprises a totally enclosed housing (19), means e.g. a drawer (2) for receiving and inserting into the housing a microtitre plate (7) which is received into the housing between a light source and a photodetector positioned in vertical alignment above and below the microtitre plate. The light source and detector are mounted on a carriage movable in the housing along each of two orthogonal axes by means of the manual control knobs (10,11) on either side of the housing. The light source and detector are thus positionable with each of the wells of the microtitre plate in turn enabling absorbancy measurements to be made, and visually displayed by a digital display (9). A window (8) in the housing (1) marked with indices corresponding to the cells in the microtitre plate permits a visual indication of the position of the detector head relative to the microtitre plate, for example, by illumination from below of the appropriate index mark by the light source itself, or by a secondary light source.

Abstract translation: 公开了一种用于微量滴定板的小型紧凑型读板器。 读取器包括全封闭壳体（19）， 抽屉（2），用于接收和插入微量滴定板（7），所述微量滴定板（7）被容纳在光源和位于微量滴定板上下垂直对准的光电检测器之间的壳体内。 光源和检测器通过壳体两侧的手动控制旋钮（10,11）安装在可沿两个正交轴线的壳体内移动的支架上。 因此，光源和检测器因此可以与微量滴定板的每个阱定位，从而使得能够进行吸光度测量，并且由数字显示器（9）可视地显示。 在壳体（1）中的窗口（8）中标有与微量滴定板中的单元相对应的指标，允许例如通过从适当指数的下方照射检测器头相对于微量滴定板的位置的视觉指示 由光源本身或二次光源标记。

公开(公告)号：US4515582A

公开(公告)日：1985-05-07

申请号：US468563

申请日：1983-02-22

Applicant: Peter Cox-Smith ,  Colin Calvert ,  John Wesley

Inventor： Peter Cox-Smith ,  Colin Calvert ,  John Wesley

IPC: B04B9/10 ,  B04B9/00 ,  B04B11/04 ,  B04B13/00

CPC classification number: B04B11/043

Abstract: A method of initiating an operation in dependence on the combined mass of an element and matter which is in or on the element can be used to remove matter which has accumulated on the rotor of a centrifuge. A substantial change is effected in the speed of rotation of the rotor and the rate of change is then measured. The operation is initiated when the rate of change is above or below a predetermined value.

Abstract translation: 可以使用依赖于元件中或元件上的元件和物质的组合质量来启动操作的方法来去除积聚在离心机的转子上的物质。 在转子的旋转速度上实质上发生变化，然后测量变化率。 当变化率高于或低于预定值时启动操作。

公开(公告)号：US4534755A

公开(公告)日：1985-08-13

申请号：US468562

申请日：1983-02-22

Applicant: Colin Calvert ,  Peter Cox-Smith

Inventor： Colin Calvert ,  Peter Cox-Smith

IPC: B04B1/02 ,  B04B1/00 ,  B04B7/18 ,  B04B11/04 ,  B01D21/26

CPC classification number: B04B11/04 ,  B04B1/00

Abstract: A centrifuge comprises a rotor which tapers conically downwardly from a maximum diameter upper region to a central bottom opening through which a liquid entry pipe projects upwardly. An outlet end of the entry pipe is shrouded by a concentric cone which is mounted for rotation with the rotor. A flexible diaphragm is secured to the outlet end of the pipe and extends towards the cone so that liquid entering the rotor is directed to flow over an inwardly facing surface of the cone. By this means, the spin of the rotor is transmitted immediately to the liquid. During operation of the centrifuge, rapid changes in the rate of rotation of the rotor are effected so that solids which have separated from liquids in the rotor and have accumulated in the upper region are dislodged therefrom.

Abstract translation: 离心机包括从最大直径上部区域向中心底部开口向下锥形的转子，液体入口管通过该中心底部开口向上突出。 入口管的出口端被安装成与转子一起旋转的同心锥体覆盖。 柔性膜片固定到管道的出口端并朝向锥体延伸，使得进入转子的液体被引导以流过锥体的面向内的表面。 通过这种方式，转子的旋转立即被传送到液体。 在离心机的操作期间，进行转子速度的快速变化，使得与转子中的液体分离并积聚在上部区域的固体从其中移出。