Patent ID: 7818948
Filing Date: 2010-10-26
Classification: B65B

Abstract:
1. A method for evacuating air from a re-sealable plastic bag possessing an integral mechanical seal, and requiring on no other means for closing the bag, by, inserting the re-sealable flexible bag, partially opened, entirely inside a larger outer re-sealable flexible bag that constitutes a vacuum chamber having flexible walls, and a re-sealable mechanical seal, closing the re-sealable mechanical seal of the larger outer re-sealable flexible bag, evacuating the air inside the outer re-sealable flexible bag prior to closing the inner re-sealable flexible bag, automatically closing the mechanical seal of the inner re-sealable flexible bag by using atmospheric pressure transmitted through the flexible walls of the outer re-sealable flexible bag, onto the mechanical seal of the inner re-sealable bag, prior to removing the vacuum.