An appliance for evacuating a flexible container, the appliance including a base housing and a vacuum source disposed within the base housing. A drip retainer is removeably disposed in the base and is in communication with the vacuum source. The drip retainer includes a chamber for holding material....http://www.google.es/patents/US7454884?utm_source=gb-gplus-sharePatente US7454884 - Appliance for vacuum sealing food containers
