초록 ▼

A package including a degassing valve for holding a material, e.g., a particulate material, within the package isolated from the ambient atmosphere. The degassing valve is mounted on the wall panel and basically comprises a cap, a base, and a flexible disk. The cap is a hollow cylindrical member fro

A package including a degassing valve for holding a material, e.g., a particulate material, within the package isolated from the ambient atmosphere. The degassing valve is mounted on the wall panel and basically comprises a cap, a base, and a flexible disk. The cap is a hollow cylindrical member from which three peripheral portions are cut away to form three equidistantly spaced peripheral outlet ports disposed above an uninterrupted ring-like portion of the cap. The base is a generally cup-shaped member having first portion arranged to be located and snap-fit within the cap member and which forms a valve seat. An inlet port extends to the valve. The disk is located on the valve seat and covering the inlet port but is movable with respect thereto. The inlet port of the valve is in communication with the interior of the package and the peripheral outlet ports are in communication with the ambient atmosphere, whereupon gas within the package is enabled to flow through the inlet port, under the disk member to cause at least a portion of the disk member to move off of the valve seat, and out through the outlet port to the ambient atmosphere. The disk may include at least one aperture so that the degassing valve is of the two-way type, instead of a one-way type.

대표청구항 ▼

[ I claim:] [1.] A degassing valve for a package having an interior for holding a material therein, the package having at least one wall panel bounding an interior in which the material is located, said degassing valve comprising a cap member, a base member, and a flexible disk member, said cap memb

[ I claim:] [1.] A degassing valve for a package having an interior for holding a material therein, the package having at least one wall panel bounding an interior in which the material is located, said degassing valve comprising a cap member, a base member, and a flexible disk member, said cap member being a generally cylindrical hollow member having a circular top wall and a generally circular side wall, said disk member being a generally planar member having a generally circular profile and being located within said cap member, at least one portion of said top wall and at least one portion of said side wall of said cap member being cut-away to form at least one peripheral opening, said base member being a generally cup-shaped member having first portion arranged to be located and secured within said cap member, said first portion of said cup-shaped member forming a valve seat having an inlet port therein, said disk member being located on said valve seat and covering said inlet port but being movable with respect thereto, said degassing valve being arranged to be mounted on the wall panel of the package, with said inlet port of said valve being in communication with the interior of the package and with said at least one peripheral opening being in communication with the ambient atmosphere, whereupon gas within the package is enabled to flow through said inlet port, under said disk member to cause at least a portion of said disk member to move off of said valve seat, and out through said at least one peripheral port to the ambient atmosphere.