ASHTRAY HAVING FIRE-EXTINGUISHING FUNCTION

摘要

PROBLEM TO BE SOLVED: To automatically extinguish the fire of a cigarette left being nipped by an ashtray. ;SOLUTION: This ashtray is provided by adsorbing water on the surface of porous bisque for cooling the burning point of a cigarette left being nipped by the tray by heat absorption by vaporization heat of water to extinguish it automatically.;COPYRIGHT: (C)2000,JPO