A liquid container including a first chamber for containing a reservoir of liquid, a second chamber containing a negative pressure producing material, an air vent for fluid communication with ambient air, a liquid supply port for supplying liquid out of the second chamber, a communication path for fluid...http://www.google.fr/patents/US6299298?utm_source=gb-gplus-shareBrevet US6299298 - Chambered liquid container having communication path
Chambered liquid container having communication path
