초록 ▼

A one piece cover for a liquid container is scored to outline a tab portion in the top of the cover. Access to the liquid is provided by urging the tab portion upwardly while not disturbing the remainder of the cover. The presence of the cover does not interfere with the generally plannar shape of t

A one piece cover for a liquid container is scored to outline a tab portion in the top of the cover. Access to the liquid is provided by urging the tab portion upwardly while not disturbing the remainder of the cover. The presence of the cover does not interfere with the generally plannar shape of the cover top so that successive covered containers may be stacked one upon the other. Various tab structures are disclosed which may be opened without the user\s fingers coming into contact with the liquid within the container.

대표청구항 ▼

A unitary cover for a container having an opening at its top and a rim surrounding said opening comprising a substantially planar disc-shaped member, a substantially flat top portion on said cover to overlie the container opening, a peripheral flange integral with and depending from the top portion

A unitary cover for a container having an opening at its top and a rim surrounding said opening comprising a substantially planar disc-shaped member, a substantially flat top portion on said cover to overlie the container opening, a peripheral flange integral with and depending from the top portion to embrace the container rim, a captive tab portion in said top integral with said top, spaced top weakening score lines in the top portion extending partially across the top portion and ending at the outer edge of the peripheral flange to define the sides of the tab, said score lines being spaced from each other in substantially parallel orientation and terminating substantially at the center of the top, a hinge normally disposed between said spaced score line ends near the center of the top, a transverse fold line spaced from the hinge and between the score lines, opposed indented portions in said score lines to define inwardly directed extensions of said top when the end of the tab portion in the peripheral flange is lifted, and when the tab is raised leaving an access opening in the cover with said opening having said inwardly directed extensions disposed in the path of the tab portion as it is raised, whereby the tab can be moved about said hinge and folded along said transverse fold line so that the free end of the tab can be retained in the open position by said inwardly directed extensions.