A sealed container and suction pump unit including a sealed container, and a suction pump adapted for drawing air out of the sealed container, the suction pump having a vacuum mount adapted for securing to the container body of the sealed container, and a bottom coupling groove adapted for coupling...http://www.google.es/patents/US5735317?utm_source=gb-gplus-sharePatente US5735317 - Sealed container and suction pump unit
