Patent ID: 7827622

Claim:
A magnetic device with discrete slidable adjustments, comprising: A) first and second sheets, each having a plurality of magnetic section elements with first and second poles, said section elements being disposed in first and second groups that alternate along a predetermined longitudinal path, said first group including at least one magnetic section element with its magnetic field disposed perpendicularly to said first and second sheets in one direction, and said second group including at least one magnetic section element with its magnetic field disposed perpendicularly to said first and second sheets in the opposite direction, said first and second group being contiguously disposed and alternating to create a predetermined pattern on said first and second sheets; B) first and second means for constraining the movement of said first and second sheets to keep them in an abutting relationship with respect to each other over a predetermined length of said longitudinal path of said first and second sheets, thereby permitting said sheets to be slidably movable along said longitudinal path relative to each other in discrete steps that overcome the attraction and repulsion forces of said magnetic section elements upon the application of a force of a predetermined magnitude.