Patent ID: 8220507
Filing Date: 2012-07-17
Classification: A45D,A61J,B05B,B65D,B67D,G01F

Abstract:
1. A method for storing and dispensing a product, comprising the following steps: i) maintaining a product hermetically sealed within a variable-volume storage chamber of a dispenser including a one-way valve coupled in fluid communication with the variable-volume storage chamber, wherein the one-way valve includes an elastic valve member forming a normally closed valve opening; ii) dispensing a plurality of different portions of the product at different points in time from the variable-volume storage chamber through the one-way valve by pressurizing product at an inlet to the normally closed valve opening and in turn moving the elastic valve member between a normally closed position and an open position with at least a segment of the valve member spaced away from the closed position to allow the passage of product from the variable-volume storage chamber through the valve opening; and iii) maintaining the product within the variable-volume storage chamber hermetically sealed with respect to ambient atmosphere throughout steps (i) and (ii).