Patent ID: 6253967
Filing Date: 2001-07-03
Classification: G01F

Abstract:
A liquid dispensing assembly comprising:a flexible container defining a space therein adapted to store a liquid;dosing device connected to said container and adapted for dispensing the liquid from said container, said dosing device comprising:a feed line in fluid communication with said space in said flexible container;a base bottom defining a through-flow opening therethrough, said through-flow opening being in fluid communication with said feed line;a filling chamber rotatably mounted on and substantially in contact with said base bottom, said filling chamber comprising a filling chamber bottom; andat least two channels disposed within said filling chamber on said filling chamber bottom, each of said channels defining an inflow opening and an outflow opening therein such that for each of said channels said inflow and outflow openings are in fluid communication with one another, each of said outflow openings being in fluid communication with said filling chamber, and each of said outflow openings being at a unique height, such that a height of each of said outflow openings is different from a height of all other of said outflow openings;whereinsaid filling chamber is rotatable relative to said base bottom such that a selected channel selected from said channels may be individually and exclusively aligned with said through-flow opening, such that said inflow opening of said selected channel is in fluid communication with said through-flow opening;a squeezing of said flexible container causes the liquid to flow from said container through said feed line, said through-flow opening, said inflow opening of said selected channel, said outflow opening of said selected channel, and into said filling chamber; andwhen the squeezing of said flexible container is sufficient to fill said filling chamber with the liquid to a height greater than said height of said outflow opening of said selected channel, the liquid drains out of said filling chamber through said outflow opening of said selected channel, said inflow opening of said selected channel, said through-flow opening, and said feed line into said flexible container until said filling chamber is filled to said height of said outflow opening of said selected channel.