Patent ID: 7793987

Claim:
A magnetic coupling assembly comprising: a first member having a first portion; a second member having a second portion, wherein the first member is adapted to be coupled to the second member such that the first portion is adjacent the second portion; at least four first magnetic elements disposed on the first member and spaced about a first central point in a first plane of the first portion, wherein each first magnetic element has a first pole located in the first plane, wherein each radial axis in the first plane extending outwardly from the first central point has at most one magnetic polarity associated therewith, and wherein a polarity of each first pole of the first magnetic elements alternates between a first polarity and a second polarity one to the next about the first central point; and at least four second magnetic elements disposed on the second member and spaced about a second central point in a second plane of the second portion, wherein each second magnetic element has a first pole located in the second plane, wherein each radial axis in the second plane extending outwardly from the second central point has at most one magnetic polarity associated therewith, and wherein a polarity of each first pole of the second magnetic elements alternates between the first polarity and the second polarity one to the next about the second central point.