SELF-SUCKING FOUNTAIN PEN THAT HAS A COLLAPSING BALLOON FIXED AROUND A PINHOLE AT THE BOTTOM OF THE BARREL, WHICH ON INFLATION , BY BLOWING AIR THROUGH THE PINHOLE EXPELS AIR IN THE BARREL AND ON DEFLATION CREATES LOW PRESSURE IN THE BARREL

摘要

This invention relates to a self-sucking fountain pen that has a collapsing ballon fixed around a pinhole at the bottom of the barrel which on inflation, by blowing air through the pinhole, expels air in the barrel and an deflation creates low pressure in the barrel so that the pen sucks in air/ink from ink-bottle.