초록 ▼

A vacuum release container cap comprises a body, a closure device, and a seal member. The body has at least two passages formed therein, a liquid passage for the flow of liquid into and out of the container, and a gas passage for the flow of air. The closure device is mounted on the body for closing

A vacuum release container cap comprises a body, a closure device, and a seal member. The body has at least two passages formed therein, a liquid passage for the flow of liquid into and out of the container, and a gas passage for the flow of air. The closure device is mounted on the body for closing each of the passages. The closure device automatically opens the gas passage while opening the liquid passage. The seal member is mounted in the gas passage, which allows the passage of air into the container, but does not allow the passage of liquid out of the container though the gas passage.

대표청구항 ▼

[ What is claimed is:] [1.] A liquid container cap adapted to automatically release vacuum generated during expulsion of liquid contained in the liquid container, comprising:a body having a cylindrical lower portion for receiving the liquid container, an upper portion with a central hole along a lon

[ What is claimed is:] [1.] A liquid container cap adapted to automatically release vacuum generated during expulsion of liquid contained in the liquid container, comprising:a body having a cylindrical lower portion for receiving the liquid container, an upper portion with a central hole along a longitudinal axis of the body, and a middle portion having a disk shape connecting the lower and the upper portions;a cylindrical central piece having a liquid passage along a longitudinal axis of the cylindrical central piece, a top section, a middle section, a bottom section, and an outer surface, said outer surface having a stepped configuration with the top section having a larger outer diameter than that of the middle section, said central piece mounted in the central hole of the upper portion of the body with the longitudinal axis of the cylindrical central piece parallel to that of the body, wherein the outer surface of the middle section of the central piece and inner surface of the upper portion of the body define a gas passage, wherein a stopper is mounted on the top section of the central piece without blocking the liquid passage;a seal sheet having a disk shape with a first edge and a second edge and placed in the gas passage with the first edge adjacent the outer surface of the central piece between the bottom section and the middle section and the second edge extending outwardly along an inner surface of the middle portion of the body; anda closure having a hole aligned with the stopper and a cylindrical wall for engaging with the body and the central piece, said closure slidably coupled to the top section of the central piece and adapted to close or open the liquid passage and said gas passage through engagement between said closure and said central piece and between said closure and said upper portion of said body.