Chalkboard cleaning device

Claim 1

A CHALKBOARD ERASER COMPRISING AN UPPER SECTION AND A MATCHING LOWER SECTION, SAID SECTIONS BEING FORMED OF ELASTOMERIC FOAM MATERIAL AND BEING JOINED TOGETHER IN SUPERPOSED RELATION TO FORM A LONG BLOCK OF SUBSTANTIALLY SQUARE CROSS SECTION WITH ROUNDED UPPER SIDE EDGES AND FLAT TOP AND BOTTOM FACES, SAID UPPER SECTION HAVING A WIDE CENTRAL SHALLOW RECESS FORMED IN ITS INTERIOR FACE WHICH TERMINATES NEAR THE OPPOSITE ENDS OF SAID BLOCK, AN ELONGATED RIGID WOODEN SLAB FILLING SAID RECESS AND ADHESIVELY BONDED BETWEEN SAID SECTIONS TO PROVIDE LONGITTUDINAL STIFFENING, SAID SLAB COVERING THE MAJOR PORTION OF THE UPPER FACE OF SAID LOWER SECTION AND BEING SPACED FROM THE SIDE FACES OF SAID BLOCK, AND A THIN CONTINUOUS LAYER OF A SOFT SUEDELIKE LEATHERY MATERIAL ADHESIVELY SECURED TO THE TOP AND SIDE FACES OF SAID BLOCK AND TERMINATING NEAR THE BOTTOM PORTION OF SAID LOWER SECTION, WHEREBY THE BOTTOM FACE OF SAID FOAM MATERIAL BLOCK MAY BE WIPED ACROSS A WIDE PATH ON A FLAT CHALKBOARD TO LOOSEN CHALK PARTICLES THEREON AND EACH OF THE THREE LEATHER FACES MAY BE WIPED OVER SAID LOOSENED CHALK PARTICLES TO REMOVE THEM FROM SAID CHALKBOARD.