The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2003
Filed:
May. 07, 2001
Mark A. Harradine, Mountain View, CA (US);
Richard V. Bennett, Dublin, CA (US);
Dexter Magnetic Technologies, Inc., Fremont, CA (US);
Abstract
A method and apparatus for magnetic separation of particles within a container. In one embodiment, a plurality of magnets are arranged in a first row and in a second row on a frame, wherein the plurality of magnets are oriented in a plane coplanar with a horizontal cross sectional plane of the frame. The frame has housing means between the first row and the second row for housing containers. The plurality of magnets apply north-south magnetic fields oriented coplanar with the horizontal cross sectional plane of the frame. The north-south magnetic field direction of a first magnet in the first row alternates 180 degrees from the north-south magnetic field direction of a second magnet in the first row, and the north-south magnetic field direction of a first magnet in the second row opposes the north-south magnetic field direction of the first magnet in the first row.