Agitator for orbital agitation
    42.
    发明授权
    Agitator for orbital agitation 失效
    搅拌器用于轨道搅拌

    公开(公告)号:US5988869A

    公开(公告)日:1999-11-23

    申请号:US124497

    申请日:1998-07-29

    Abstract: An agitator capable of generating complex mixing motions is described. In some embodiments, an agitator in accordance with the present teachings includes a movable assembly that is suspended, via several resilient supports, from a frame. The movable assembly receives a vessel containing a material(s) to be agitated. The movable assembly advantageously includes spaced upper and lower plates having a rotatably-supported member disposed therebetween. The mass of the rotatably-supported member is asymmetrically distributed about its rotational axis. A drive force, such as a directed air flow, which may be used in conjunction with a belt drive mechanism, causes the rotatably-supported member to rotate. Due to the asymmetric mass distribution of the rotatably-supported member, force is non-uniformly applied to resilient supports such that, at any given time, some of such resilient supports are subjected to a compressive force while other resilient supports are placed under tension. The particular resilient supports that are subjected to the compressive force change as a function of the rotation of the rotatably-supported member, thereby placing the movable assembly in orbital motion and agitating the material(s) within the vessel disposed thereon.

    Abstract translation: 描述能够产生复杂混合运动的搅拌器。 在一些实施例中,根据本教导的搅拌器包括通过几个弹性支撑件从框架悬挂的可移动组件。 可移动组件接收容纳待搅拌的材料的容器。 可移动组件有利地包括间隔开的上板和下板,其间设置有可旋转支撑的构件。 可旋转支撑的构件的质量围绕其旋转轴线不对称地分布。 可以与带驱动机构一起使用的诸如有向空气流的驱动力使可旋转支撑的构件旋转。 由于可旋转支撑的构件的不对称质量分布,力不均匀地施加到弹性支撑件,使得在任何给定时间,一些这样的弹性支撑件受到压缩力,而其他弹性支撑件处于张力下。 经受压缩力变化的特定弹性支撑件作为可旋转支撑构件的旋转的函数,从而将可移动组件置于轨道运动中并搅动设置在其上的容器内的材料。

    Discrete matrix plate positioner
    43.
    发明授权
    Discrete matrix plate positioner 失效
    离散矩阵板定位器

    公开(公告)号:US5952240A

    公开(公告)日:1999-09-14

    申请号:US926389

    申请日:1997-09-09

    Abstract: A positive displacement positioner employs rigid stops and actuators to position a work piece, such as a microtiter plate, in any one of at least three positions. Positioner platforms, each of which is capable of moving a work piece between at least two distinct positions, are nested in order to multiply the number of positions available. For example, a two-position rigid stop positioner platform nested in a four-position rigid stop positioner platform, or a four-position rigid stop positioner platform nested in a two-position rigid stop positioner platform would permit the movement of a work piece to any one of eight distinct positions. A four-position platform nested inside a four-position platform yields sixteen positions, and so on. Each positioner platform preferably has a symmetrical polygonal outline and nested platforms provide displacement along each of the polygon's axes of symmetry. Consequently, a positioner will preferably provide displacement to any one of a number of positions.

    Abstract translation: 正位移定位器使用刚性止动件和致动器来将诸如微量滴定板的工件定位在至少三个位置中的任一个中。 定位器平台(每个平台能够在至少两个不同的位置之间移动工件)被嵌套,以便乘以可用位置的数量。 例如,嵌套在四位刚性停止定位器平台中的两位刚性停止定位器平台或嵌在两位置刚性停止定位器平台中的四位刚性停止定位器平台将允许工件移动到 八个不同位置中的任何一个。 嵌在四位平台中的四位平台产生十六个位置,依此类推。 每个定位器平台优选地具有对称的多边形轮廓,并且嵌套平台沿着多边形的对称轴线提供位移。 因此,定位器将优选地向多个位置中的任何一个提供位移。

    Rapid drying oven for providing rapid drying of multiple samples
    44.
    发明授权
    Rapid drying oven for providing rapid drying of multiple samples 失效
    快速干燥炉,用于快速干燥多个样品

    公开(公告)号:US5937536A

    公开(公告)日:1999-08-17

    申请号:US944860

    申请日:1997-10-06

    CPC classification number: F26B5/044 F26B21/004 F26B21/14

    Abstract: A dryer for use with chemical compounds employs controlled vacuum, elevated temperature and dry, inert gas to dry the chemical compounds. The dryer includes a vacuum chamber into which trays containing the compounds are placed. The chamber includes heating elements which elevate the temperature of chemical samples placed within the chamber. Supplying and evacuating manifolds, each with a plurality of orifices for supplying and evacuating dry inert gas, provide a substantially laminar flow of dry inert gas just above the trays of chemical compounds which are to be dried. The laminar gas flow removes the unwanted vapor which tends to form above the tray of chemical compound, thus accelerating the drying process.

    Abstract translation: 与化学化合物一起使用的干燥器采用受控真空,高温和干燥,惰性气体来干燥化学化合物。 干燥机包括一个真空室,其中放置含有化合物的托盘。 该腔室包括提升放置在腔室内的化学样品的温度的加热元件。 供应和排空歧管,每个歧管各具有用于供应和排出干燥惰性气体的多个孔,提供干燥惰性气体的基本层流,正好在要干燥的化合物的塔板上方。 层流气流除去易于形成化学化合物塔板上方的不需要的蒸汽,从而加速干燥过程。

    Variable permeability steering torque sensor
    45.
    发明授权
    Variable permeability steering torque sensor 失效
    可变磁导率转向扭矩传感器

    公开(公告)号:US4796463A

    公开(公告)日:1989-01-10

    申请号:US34535

    申请日:1987-04-06

    CPC classification number: G01L5/221 G01L3/105

    Abstract: An electromagnetic torque sensor arrangement comprising a pair of magnetic circuits differentially responsive to the twist of a rotary shaft under load. Each magnetic circuit comprises a stator assembly, and at least one deflectable element disposed therein on a pair of pins which experience relative rotation in relation to the twist of the shaft. The relative rotation causes deflection of the deflectable elements in relation to the twist, and the resulting variation in the permeability of the magnetic circuits is detected as a measure of the applied torque.

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