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Magnetic strirrer for sample container

  • US 4,390,283 A
  • Filed: 07/06/1981
  • Issued: 06/28/1983
  • Est. Priority Date: 09/04/1979
  • Status: Expired due to Term
First Claim
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1. In apparatus of the type having a sample container for holding sample material to be assayed and a stirring element within the container for stirring material therein, said stirring element separate from said container to allow relative movement of said container with respect to said stirring element, the improvement comprising:

  • means for rotatably supporting the sample container;

    means for rotating the sample container to cause corresponding rotational movement of material therein; and

    magnetic means external to the container and magnetically coupled to the separate stirring element therein in a manner retaining the separate stirring element in a fixed relative position during rotation of the sample container whereby stirring of the sample material is achieved during said rotation by the rotational motion of the sample material around and past the fixed stirring element.

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