# US 11,077,980 B2 · Vacuum-sealed container > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,980 B2 - Document ID: US11077980B2 - Status: Granted - Kind: B2 - Application number: 16/314,235 - Filed: 2017-06-29 - Published: 2019-07-04 - Granted: 2021-08-03 - Earliest claimed: 2016-07-04 - Assignees: Jchiglobal Co., Ltd. - Applicants: Sang Woo Hwang - Inventors: Sang Woo Hwang - Web page: https://patentgrep.com/patent/US11077980B2 ## CPC - B65D 1/22: Boxes or like containers with side walls of substantial depth for enclosing contents {(B65D43/162, B65D81/02, B65D81/3813 take precedence)} - B65D 1/40: Details of walls (other container details B65D23/00, B65D25/00) - B65D 43/02: Removable lids or covers (with means for piercing, cutting, or tearing a frangible inner closure B65D51/22) - B65D 43/0214: {secured only by friction or gravity (B65D43/0204 takes precedence)} - B65D 47/18: for discharging drops; Droppers (droppers in general B01L3/00; {pipettes connected to container closures B01L3/0282}) - B65D 51/16: with means for venting air or gas - B65D 81/20: under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas {(B65D81/28 takes precedence; containers with pressurising means for maintaining ball pressure A63B39/025)} - B65D 81/24: Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants (with thermal insulation B65D81/38) - F16K 15/00: Check valves (valves specially adapted for inflatable balls A63B41/00) - F16K 51/02: specially adapted for high-vacuum installations - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} ## Abstract A vacuum-sealed container wherein a large negative pressure is applied inside the container without using a pump, making it possible to store food for a long time; the container can be sealed without using a packing. The vacuum-sealed container includes: a container body having a lid coupling groove formed along the periphery of the upper end portion of an opening and arranged along a closed path; a lid body formed to be convex upward using an elastic material, the lid body having a sealing portion formed thereon such that the same is inserted into the lid coupling groove along the periphery thereof so as to seal the inside of the container body; and a valve installed on the lid body so as to provide a passage, through which air inside the container body is discharged to the outside, and so as to expose/cover the passage. ## Claims ### Claim 1 A vacuum-sealed container comprising: a container main body, which has a lid coupling groove formed along an edge of an upper end portion of an opening and disposed along a closed route; a lid main body, which is made of a material having elasticity and formed to be convex upward, and has a sealing portion that is formed along an edge of the lid main body and is inserted into the lid coupling groove to seal an interior of the container main body; and a valve, which is installed on the lid main body to provide a passageway through which air in the container main body is discharged to the outside, the valve being configured to open or close the passageway; wherein the lid coupling groove is disposed such that an opening of the lid coupling groove is directed toward an inside of the container main body, and an inner surface of the lid coupling groove becomes gradually higher outwardly, when the sealing portion is inserted into the lid coupling groove, an upper surface of the sealing portion comes into contact with an upper surface of the lid coupling groove, and a lower surface of the sealing portion comes into contact with a lower surface of the lid coupling groove, such that double sealing is made, wherein the lid main body is characterized as follows: (i) when a central portion of the lid main body is pressed downward in a state in which the air passageway is open, the lid main body is elastically deformed convexly downwardly, (ii) when the force applied to the container main body is eliminated, the lid main body is to be spread upward by its own elastic force. ### Claim 2 (depends on 1) The vacuum-sealed container of claim 1, wherein the sealing portion is formed to have a circular cross section or an elliptical cross section and have a thickness greater than a thickness of the remaining portion of the lid main body other than the portion where the sealing portion is located. ### Claim 3 (depends on 1) The vacuum-sealed container of claim 1, wherein elastic protrusions, which come into close contact with the inner surface of the lid coupling groove while being bent in a radial direction of the container main body, are installed on an upper surface and/or a lower surface of the sealing portion. ### Claim 4 (depends on 1) The vacuum-sealed container of claim 1, wherein a thickness of the portion of the lid main body where the sealing portion is located is smaller than a thickness of the central portion of the lid main body. ### Claim 5 (depends on 1) The vacuum-sealed container of claim 1, wherein the lid main body is made of plastic having elasticity. ### Claim 6 (depends on 1) The vacuum-sealed container of claim 1, wherein the valve includes: a valve main body which is coupled to the lid main body, has therein a first air passageway, and has a first thread; and a valve handle which has a second thread fastened to the first thread, has a second air passageway, and allows the second air passageway to be connected to or disconnected from the first air passageway in accordance with a degree to which the second thread is fastened to the first thread. ### Claim 7 (depends on 1) The vacuum-sealed container of claim 1, wherein the valve is a check valve that permits air in the container main body to be discharged to the outside and prevents outside air from flowing into the container main body.