Non-venting valve and dispensing package for fluid products and the like
AssigneeSeaquist Closures Foreign, Inc.
InventorPaul E. Brown
Life of this patent
Estimating the term…
Abstract
A non-venting valve and dispensing package for fluid products and the like includes a container of the type having an interior volume which reduces as fluid product is dispensed from the package. A self-sealing dispensing valve has a marginal portion sealing about an associated discharge opening in the container, and a valve head with an orifice which shifts between open and closed positions in response to the application and release of pressure on and/or within the container. A vent resisting member retains the orifice in the closed position after each dispensing of fluid product from the container to prevent ambient air from being drawn back through the orifice into the container.
Claims9
A non-venting dispensing system for controlling the flow of fluid product from a container that has a selected fluid product within a predetermined volume, and that is configured to reduce said predetermined volume as fluid product is dispensed from said container, and that includes a discharge opening, said system including a valve comprising:
- an interior surface for interfacing with the fluid product from said container, and an oppositely oriented exterior surface interfacing with ambient environment;
- a marginal valve portion for being sealingly retained relative to the discharge opening of said container;
- a valve head portion having an orifice which shifts between (1) an outwardly extended, open position to permit fluid flow therethrough in response to a predetermined discharge pressure within said container, and (2) a closed position to shut off fluid flow therethrough upon removal of the predetermined discharge pressure;
- and a connector sleeve portion having a resiliently flexible construction, with one marginal end area thereof connected with said marginal valve portion, and an opposite head end area thereof connected with said valve head portion;
- and
- venting resisting means for retaining said orifice in said closed position after each dispensing of fluid product through said valve to prevent ambient air from being drawn through said orifice toward said container.
Dependencies are inferred from the claim text.