Plastic glasses with different types of lids and the dome lid are one of the most popular.
The present invention offers a disposable dome lid designed for fitting over a drinking cup or similar container with an opening at its upper end, wherein the aperture in the cup is defined by a substantially circular cup rim whose top extremity resides in a basic single plane.
By one aspect of the present invention, a dome-shaped lid is provided for installation on a drinking cup or similar container having an aperture at the top.
The disposable dome lid is vacuum formed from extruded plastics sheet material, as will be discussed in greater detail, and comprises a substantially circular planar top surface, a side surface that depends downwardly from the top surface, and a cup rim engaging recess that is formed near the disposable dome lid's outer periphery.
The disposable dome lid's cup-rim-engaging recess is created in the middle.
The cup rim engaging recess is defined on its outer side by a roughly round, downwardly sloping apron and on its inner side by a downwardly sloping recess side wall.
Both of these characteristics are situated on the outside edge of the recess.
The downwardly descending side surface and the recess side wall extend into an upwardly facing recess below the top surface of the cup lid, and they meet at the base of this upwardly facing recess.
The upward-facing recess is located under the top surface of the cup lid.
A piece of the top surface that is normally round, displaced and extends externally terminates at a lower lip engagement surface that drops down from it and has a side edge on each side.
Each side of this surface has a side edge.
At each of the lower lip engaging surface's side edges, it fuses with the side surface that leans downwardly from the top surface throughout the remaining circle of this surface.
On the top surface, a hinge in the form of an indented "U" is created.
This hinge is positioned apart from the bottom lip-contacting surface and is parallel to that surface.
To define a tear-back flap, fault lines are imprinted onto the top surface's essentially flat area.
If this flap is torn back, the "U"-shaped hinge will fold rearward.
When the tear-back flap is folded back in this fashion, it generates an opening in the top surface next to the surface for contacting the bottom lip.
This hole enables the user to sip through the top of the container.
