Brush-like writing instrument

Abstract From the Canadian patent

The invention provides a writing instrument for specific liquid which has an air introducing passage for the required amount of external air from outside the instrument by sucking action of a valve body/piston. The invention also provides a writing instrument for a specific liquid which has a liquid passage for supplying the liquid at all times from a liquid reservoir having multiple liquid passage holes which are longitudinally elongated and spaced apart from each other to a brush point through a liquid supply cylinder located between the reservoir and a brush point which has liquid outlets at a peripheral wall thereof, so that at least one of the holes and outlets is always aligned to let …