Patent ID: 7324321
Filing Date: 2008-01-29
Classification: G11B

Abstract:
1. A degaussing apparatus comprising: a nonferrous housing having a top wall defined by an upper surface and a lower surface; a magnetic assembly comprising at least three permanent magnets secured together and to a rotatable plate mounted beneath said top wall, each said permanent magnet having a pole with a first polarity and a second pole with a polarity opposite that of said first polarity, a first permanent magnet having a pole with a first polarity fastened to a second permanent magnet, the poles of each said first and said second permanent magnets facing each other being the same; said second permanent magnet having a second pole with polarity opposite that of said first polarity fastened to a third permanent magnet, the poles of each of said second and said third permanent magnets facing each other being the same and opposite that of said first polarity; means for spacing said magnetic assembly a predetermined distance from said top wall; means for rotating said magnetic assembly; whereby placement of a magnet material on said upper surface of said top wall results in degaussing of said magnetic material upon rotation of said magnetic assembly within said housing.