An edible cap for selectively covering an open end of a cup includes an edible flat body, an edible wax layer and an edible film. The edible flat body is in the form of a cap. The edible flat body is a solid body including a top portion and a wall extending around the top portion in a circle of a certain diameter to provide a profile in compliance with the open end of the. The wall includes an opening for receiving the open end of the cup. The edible wax layer is attached to a face of the edible flat body. The edible film is attached to a face of the edible wax layer opposite to the flat body in a detachable manner

Disclosed is a device for protecting and preserving a substance in a container. The device may include a plurality of overlapping sectors capable of rotating about a pivot point such that the device has a substantially disc shape when fully expanded and a substantially pie shape when partially expanded; and a lip defining an outer diameter of the device when fully expanded. The outer diameter of the device is equal to or greater than an inner diameter of the inner surface of the container.

Disclosed is a device for protecting and preserving a substance in a container. The device may include a plurality of overlapping sectors capable of rotating about a pivot point such that the device has a substantially disc shape when fully expanded and a substantially pie shape when partially expanded; and a lip defining an outer diameter of the device when fully expanded. The outer diameter of the device is equal to or greater than an inner diameter of the inner surface of the container.

A cover structure of a sealed can includes an upper cover, a lower cover, a handle component, an elastic member and a sealing ring. The upper cover has a through hole; the lower cover is installed under the upper cover; the handle component includes a connecting lever, a shifting handle and a pivot connecting the connecting lever and shifting handle, and the connecting lever passing through the through hole and then connecting the lower cover; each elastic member is elastically clamped between the upper and lower covers; the sealing ring has an end coupled to the lower cover and the other end extending towards the upper cover; the connecting lever is formed at the center of the lower cover, and each elastic member is installed symmetrically on both sides with respect to the connecting lever. This structure features simple structure and uniform force exertion and has good sealing effect.

A cover structure of a sealed can includes an upper cover, a lower cover, a handle component, an elastic member and a sealing ring. The upper cover has a through hole; the lower cover is installed under the upper cover; the handle component includes a connecting lever, a shifting handle and a pivot connecting the connecting lever and shifting handle, and the connecting lever passing through the through hole and then connecting the lower cover; each elastic member is elastically clamped between the upper and lower covers; the sealing ring has an end coupled to the lower cover and the other end extending towards the upper cover; the connecting lever is formed at the center of the lower cover, and each elastic member is installed symmetrically on both sides with respect to the connecting lever. This structure features simple structure and uniform force exertion and has good sealing effect.

A cover structure of a sealed can includes an upper cover, a lower cover, a handle component, an elastic member and a sealing ring. The upper cover has a through hole; the lower cover is installed under the upper cover; the handle component includes a connecting lever, a shifting handle and a pivot connecting the connecting lever and shifting handle, and the connecting lever passing through the through hole and then connecting the lower cover; each elastic member is elastically clamped between the upper and lower covers; the sealing ring has an end coupled to the lower cover and the other end extending towards the upper cover; the connecting lever is formed at the center of the lower cover, and each elastic member is installed symmetrically on both sides with respect to the connecting lever. This structure features simple structure and uniform force exertion and has good sealing effect.

A cover structure of a sealed can includes an upper cover, a lower cover, a handle component, an elastic member and a sealing ring. The upper cover has a through hole; the lower cover is installed under the upper cover; the handle component includes a connecting lever, a shifting handle and a pivot connecting the connecting lever and shifting handle, and the connecting lever passing through the through hole and then connecting the lower cover; each elastic member is elastically clamped between the upper and lower covers; the sealing ring has an end coupled to the lower cover and the other end extending towards the upper cover; the connecting lever is formed at the center of the lower cover, and each elastic member is installed symmetrically on both sides with respect to the connecting lever. This structure features simple structure and uniform force exertion and has good sealing effect.

A buckle joint structure has a first body, a second body and a buckle module with a cross section of a C-shape. A first flange of the first body is fixed or buckled to a second flange of the second body via the buckle module with the cross section of the C-shape. When assembling, merely a sliding manner is required to make the first flange of the first body and the second flange of the second body buckled to the buckle module. When detaching, merely a sliding manner is required to withdraw the buckle module away from the first body and the second body. Thus, the buckle joint structure is easily assembled or detached without an extra tool or help of another person.

The present invention relates to a produce container which includes a receptacle and a lid. The receptacle has a mouth circumscribed by a rim which has a first flange. The lid is releasably attachable to the receptacle to close off the mouth. The lid has a skirt portion adapted to interact with the rim of the receptacle to retain the lid on the receptacle and a second flange projecting from the skirt portion of the lid. One or more selected members of the produce container include reinforcing means.

The present invention relates to a produce container which includes a receptacle and a lid. The receptacle has a mouth circumscribed by a rim which has a first flange. The lid is releasably attachable to the receptacle to close off the mouth. The lid has a skirt portion adapted to interact with the rim of the receptacle to retain the lid on the receptacle and a second flange projecting from the skirt portion of the lid. One or more selected members of the produce container include reinforcing means.