Patent ID: 8191197
Filing Date: 2012-06-05
Classification: B43L

Abstract:
1. A non-permanent marker board eraser apparatus comprising, in combination: a pair of horizontal spaced apart u-shaped guide rails comprising a first guide rail and a second guide rail, the guide rails selectively mounted in communication with an existing marker board; a vertical eraser in movable communication with the guide rails and the marker board, the vertical eraser comprising an inwardly disposed erase material in communication with an outwardly disposed rigid outer member, the eraser having an eraser top spaced apart from an eraser bottom, the erase material further having two identical spaced apart gaps, one of each of the gaps slideably fitted around one of each of the guide rails; a trio of equal length eraser sections of the eraser, comprising a first section, a second section, and a third section; a control box having a top spaced apart from a bottom, a first end spaced apart from a second end, the second end perpendicularly bonded to the eraser outer member, the control box further comprising: wherein the motor control selectively causes each eraser section to move across the marker board, selectively depress into contact with the marker board, and automatically return to a previous position.