초록 ▼

A valve apparatus utilizes a biased flap and air hole to regulate the flow of a fluid from the orifice of a container. The biased flap progressively opens in response to increasing fluid pressure upon the flap. An additional air hole is preferably used to permit air to continuously enter the contain

A valve apparatus utilizes a biased flap and air hole to regulate the flow of a fluid from the orifice of a container. The biased flap progressively opens in response to increasing fluid pressure upon the flap. An additional air hole is preferably used to permit air to continuously enter the container while fluid is discharged. A substantially smoother pouring response is achieved.

대표청구항 ▼

[What is claimed is:] [1.]an attachment portion dimensioned to be coupled to the lip region of said container;a flap portion coupled to said attachment portion, said flap portion sized and positioned to substantially obstruct the flow of fluid through the lip region of the container when said flap p

[What is claimed is:] [1.]an attachment portion dimensioned to be coupled to the lip region of said container;a flap portion coupled to said attachment portion, said flap portion sized and positioned to substantially obstruct the flow of fluid through the lip region of the container when said flap portion is in a closed position;wherein said flap portion is resiliently biased with a bias selected so that said flap portion is in said closed position in the absence of fluid pressure acting on said flap portion and wherein said bias acts so that said flap portion opens a progressively greater amount in response to increasing fluid pressure against said flap portion, thereby decreasing the obstruction of said flap portion to the discharge of the fluid through said lip region as the fluid pressure against said flap portion increases;whereby said valve apparatus moderates pressure surges of the discharged fluid.