Method and apparatus for mixing liquid samples in a container using rotating magnetic fields
First Claim
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1. A method for mixing a liquid solution contained in a container having a false bottom, the method comprising:
- placing a ferromagnetic mixing member within the liquid solution contained in the container; and
, rotating a pair of magnetic fields in a circular pattern in close proximity to the container near the location of the false bottom, wherein rotating the pair of magnetic fields comprises rotating a pair of magnets in a coordinated pattern in which lines parallel to the axes of the magnets remain normal to one another, so that magnetic forces acting upon the mixing member cause it to revolve thereby generating a mixing motion within the liquid solution.
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Abstract
Mixing a liquid solution in a container by rotating a pair of bar-shaped magnets in a coordinated pattern in which lines parallel to the axes of the bar-shaped magnets remain normal to one another, the magnets disposed in close proximity to and on opposite sides of the container a distance above the bottom of the container so that a magnetic mixing member is caused to rotate in the liquid about the same distance above the bottom of the container. Relative vertical movement of the magnets and the container generates a vortex-like mixing action throughout the container.
75 Citations
16 Claims
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1. A method for mixing a liquid solution contained in a container having a false bottom, the method comprising:
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placing a ferromagnetic mixing member within the liquid solution contained in the container; and
,rotating a pair of magnetic fields in a circular pattern in close proximity to the container near the location of the false bottom, wherein rotating the pair of magnetic fields comprises rotating a pair of magnets in a coordinated pattern in which lines parallel to the axes of the magnets remain normal to one another, so that magnetic forces acting upon the mixing member cause it to revolve thereby generating a mixing motion within the liquid solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for mixing a liquid solution contained in a container, the method comprising:
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placing a ferromagnetic mixing member within the liquid solution contained in the container;
rotating a pair of magnetic fields in a circular pattern in close proximity to the container; and
,moving the container vertically relative to the magnetic fields so that magnetic forces acting upon the mixing member cause it to revolve thereby generating a mixing motion throughout the entirety of the liquid solution. - View Dependent Claims (11, 12, 13)
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14. An apparatus for mixing a liquid solution within a liquid container, the apparatus comprising:
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a liquid container having a false bottom;
a spherical ferromagnetic mixing member within the liquid in the container;
a pair of magnetic field sources positioned at opposite sides of the container proximate the false bottom; and
,means for rotating the magnetic field sources in circular patterns in close proximity to the liquid container, wherein the means for rotating the magnetic field sources comprise rotating a pair of bar-shaped magnets in a coordinated pattern in which lines parallel to the axes of the bar-shaped magnets remain normal to one another, so that magnetic forces acting upon the magnetic mixing member cause it to rotate, thereby generating a mixing motion within the liquid solution. - View Dependent Claims (15, 16)
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Specification