Abstract: The invention relates to a combination structure of a viewing cover and a frame member for a food container cover. The combination structure includes: a viewing cover having a combining slot, which has a uniform depth and extends along a periphery of a surface of a viewing cover body, and an engaging flange extending outward at a position above the combining slot; and a frame member including a plurality of locking wings connected to a frame member body via a living hinge, a wall portion extending upward from the living hinge by a predetermined height, and an engaging hook provided on an inner surface of the wall portion. The engaging flange is engaged with an upper portion of the engaging hook.

Abstract: The invention relates to a combination structure of a viewing cover and a frame member for a food container cover. The combination structure includes: a viewing cover having a combining slot, which has a uniform depth and extends along a periphery of a surface of a viewing cover body, and an engaging flange extending outward at a position above the combining slot; and a frame member including a plurality of locking wings connected to a frame member body via a living hinge, a wall portion extending upward from the living hinge by a predetermined height, and an engaging hook provided on an inner surface of the wall portion. The engaging flange is engaged with an upper portion of the engaging hook.

Abstract: The present invention provides a multi-layered container, including a cover (10), with a plurality of first locking projections (15), and a plurality of container bodies (20) having a plurality of locking flaps (23). Each of the plurality of locking flaps (23) rotatably extends from each of predetermined portions of the circumferential outer surface of the container body (20), with a locking hole (24) provided on the locking flap (23). The multi-layered container further includes an intermediate lid (30) provided between the cover (10) and an uppermost container body (20) or between the container bodies (20). The intermediate lid (30) has a plate-shaped part (31), a coupling part (32) bent into a channel-shape while extending from an edge of the plate-shaped part (31), and a plurality of coupling flanges (35) extending downward from predetermined portions of the coupling part (32), with a second locking projection (25) provided on an end of each of the plurality of coupling flanges (35).

Abstract: Disclosed is a push opener suitable for removing a cap (12) fitted to an opening of a bottle (10). The push opener includes an intermediate lid (31) having an elongate arm, a first operation arm (32) formed with an engagement projection to be engaged with a lower end of the bottle cap, a second operation arm (33) for supporting an upper end of the bottle cap, an inclined arm (34) hinged to the first operation arm (32) and positioned directly below the elongate arm of the intermediate lid (31), to be pivoted and raise the first operation arm (32) when an opener body (20) is pushed downward, a spring (36) for returning the pivoted inclined arm (34) to its original position, an inner housing (20b) formed of transparent material, an outer housing formed of transparent material and positioned radially outward of the inner housing, and a first advertising section (25) provided the inner housing (20b) or the outer housing (20d).

Abstract: Disclosed herein is a container (1), which is easily contracted and elastically expanded to restore its original shape by a coil spring (7). This container (1) includes a flexible body (3) and a capacity control ring (5). The body (3) has a cylindrical interior for containing something. The capacity control ring (5) is spirally formed around the outer surface of the sidewall of the body (3), and allows the body (3) to be contracted and elastically expanded in a vertical direction, thus controlling the capacity of the body (3).

Abstract: Disclosed is a bottle cap for vacuum preservation, comprising a cap main body consisting of a cylindrical cap tube inserted in a vessel, and a holder part extended from an end, located at a vessel inlet, of the cap tube; a piston airtightly inserted in the cap main body and axially sliding along the cap main body to release air in the vessel; and a valve member positioned in an end, located in the vessel, of the cap main body. The holder part is bent in such a way that its bent part is parallel to the cap tube, and the valve member opens and closes an air hole for introducing and releasing air in the vessel according to movement of the piston. The bottle cap can avoid disadvantages of deterioration of contents in the vessel, inconvenience of separately storing a pump, and loss of the pump. Furthermore, the vessel is readily vacuumized using the bottle cap.

Abstract: Disclosed is a vacuum valve including a lid, a depression defined on the lid, a boss formed on the lid at a bottom of the depression, a rotary cover rotatably arranged in the depression, and a closure member detachably coupled to the rotary cover.

Abstract: Disclosed is a bottle cap for vacuum preservation, comprising a cap main body consisting of a cylindrical cap tube inserted in a vessel, and a holder part extended from an end, located at a vessel inlet, of the cap tube; a piston airtightly inserted in the cap main body and axially sliding along the cap main body to release air in the vessel; and a valve member positioned in an end, located in the vessel, of the cap main body. The holder part is bent in such a way that its bent part is parallel to the cap tube, and the valve member opens and closes an air hole for introducing and releasing air in the vessel according to movement of the piston. The bottle cap can avoid disadvantages of deterioration of contents in the vessel, inconvenience of separately storing a pump, and loss of the pump. Furthermore, the vessel is readily vacuumized using the bottle cap.

Abstract: Disclosed herein is a container (1), which is easily contracted and elastically expanded to restore its original shape by a coil spring (7). This container (1) includes a flexible body (3) and a capacity control ring (5). The body (3) has a cylindrical interior for containing something. The capacity control ring (5) is spirally formed around the outer surface of the sidewall of the body (3), and allows the body (3) to be contracted and elastically expanded in a vertical direction, thus controlling the capacity of the body (3).