Анализ тенденций развития. Обзор патентной и научно-технической литературы

Examiner: Cooley; Charles E. , Agent or Firm: Jordan; Leland K is claimed is:

. A method for mixing a liquid solution, the method comprising: a container having a bottom with the liquid solution therein; disposing a spherical ferromagnetic mixing member within the container; and, a U-shaped, L-shaped or cup-shaped bracket having an upper arm portion in a circular pattern around the outside of and in close proximity to the container, the bracket having and a permanent or semi-permanent magnet for generating magnetic forces attached to the upper arm portion, the magnet and the upper arm portion being disposed distance above the bottom of the container, that magnetic forces acting upon the mixing member cause the mixing member to revolve said distance above the bottom of the container, thereby generating a mixing motion within the liquid solution.

. The method of claim 1 wherein the mixing member is made of an iron alloy and has a diameter in the range 2-6 mm.

. The method of claim 1 wherein the mixing member has a protective coating to prevent contamination thereon, the coating having thickness about 25 microns.

. A method for mixing a liquid solution, the method comprising: a container having a bottom with the liquid solution therein; disposing a spherical ferromagnetic mixing member within the container; and, the container with a rack; transporting the rack proximate a magnetec field; the magnetic field in a circular pattern outside of and in close proximity to the container; that magnetic forces acting upon the mixing member cause it to revolve within the container thereby generating a mixing motion within the liquid solution.

. The method of claim 4 wherein the mixing member is made of an iron alloy and has a diameter in the range 2-6 mm.

. The method of claim 4 wherein the mixing member has a protective coating to prevent contamination thereon, the coating having thickness about 25 microns.

. An apparatus for mixing a liquid solution contained in a liquid container, the apparatus comprising: container having a bottom with the liquid solution therein; spherical ferromagnetic mixing member freely disposed within the container; permanent or semi-permanent magnet; and, for revolving a U-shaped, L-shaped or cup-shaped bracket in a circular pattern around the outside of and in close proximity to the liquid container, the bracket having an upper arm portion with the permanent or semi-permanent magnet attached to the upper arm portion, the magnet and the upper arm portion being disposed a distance above the bottom of the container, that magnetic forces acting upon the mixing member cause it to revolve said distance above the bottom of the container and generate a mixing motion within the liquid solution.

. The apparatus of claim 7 wherein the mixing member is made of an iron alloy and has a diameter in the range 2-6 mm.

. The apparatus of claim 7 wherein the mixing member has a protective coating to prevent contamination thereon, the coating having thickness about 25 microns.

Method and apparatus for mixing liquid samples in a container using rotating magnetic fields 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.