Other

Eon S Kim

Se Won Kim

The invention relates to an apparatus for brushing chalk powder off from an eraser surface of a blackboard eraser in which elastic brushes attached to rotatable shafts of rotatable bodies are brushingly engaged with the eraser surface and are rotated in forward and reverse directions by a motor so that the chalk powder removed from the eraser is collected in chalk powder receiving containers. After the passage of a set time interval, the operation of the apparatus is automatically stopped. A chalk powder containing eraser and the now clean eraser inside the apparatus can be exchanged. Thus, dispersion of powder into the room is prevented.

Growing community of inventors

Kyonggido, South Korea

Eon S Kim