A beverage container closure or lid adapted for closing an open end of a beverage container. The lid is couplable to the beverage container and includes a selectively openable stopper that when closed, creates a fluid-tight seal between the beverage container and the environment. The stopper may be opened by pressing a button disposed on a side of the beverage container closure. The stopper is subsequently automatically closed when the button is released. Thus, the user may open and close the beverage container closure using a single hand without the need to remove the beverage container closure from the beverage container. The beverage container closure includes an actuating lever configured to press the button when a user applies a force to the lever. By utilizing the mechanical advantage provided by the lever, a user is able to selectively open and close the stopper using a relatively low amount of force.

The present invention relates to a closure means for closing the opening of a container, said closure means comprising: a) a lid assembly, comprising: a lid cover, configured to provide an upper plate and a lower plate connecting said upper plate via standing wall therebetween, said upper plate is provided with at least one hinge member; at least one wing member comprising a handling portion, a flipping portion, and a stopper portion, said wing member pivotably connecting to said lid cover at said hinge member and thus movable between a first position where said stopper portion being away from said upper plate of said lid cover and a second position where said stopper portion being engaged with said upper plate of said lid cover and thus the upward movement of said wing member with respect to said lid cover being limited; and b) a sealing element, fittingly mounted around said standing wall of said lid cover; and characterized in that, in a first configuration where said container being closed with said closure means, said wing member being moved from said first position to said second position causing said closure means being moved upwards automatically.

The present invention relates to a method for channeling gas during sealing a container with a closure means and/or unsealing a container that is sealed with a closure means, comprising the steps of: A) providing a closure means comprising: a) a lid assembly having: a lid cover, configured to provide an upper plate and a lower plate connecting said upper plate via standing wall therebetween, said upper plate is provided with at least one hinge member; at least one wing member, pivotably connecting to said lid cover at said hinge member, comprising a handling portion, a flipping portion, and a stopper portion for limiting the upward pivoting of said wing member with respect to said lid cover by engaging with said upper plate of said lid cover; and a gas channeling means; and b) a sealing element, fittingly mounted around said standing wall of said lid cover; and B) providing a container having surrounding wall having a first edge connecting to a bottom and a second edge defining an open-top for said container, wherein said second edge is configured to support said flipping portion of said wing member; and characterized in that, gas being channeled through said gas channeling means, during closing said container with said closure means and/or opening said container that is closed with said closure means.

Locking a lid while controlling cost increases. In a lid opening and closing device, an engagement receiver and a lock member is provided on a base and a lid respectively. A base-end portion of a drive-link is rotatably coupled to the base, and a tip-end portion of the drive-link is coupled to the drive-link coupling of the lid. By rotating the drive-link to one side in a rotation direction by an actuator, the lid moves from an open to a closed position to close the opening. The drive-link coupling couples the drive-link to the lid so that a relative rotation of the drive-link to the lid in the closed position is allowed. When the drive-link rotates relative to the lid to said one side in the rotation direction, the lock member is switched to a locked state. This allows the lock member to be in the locked state utilizing the actuator.