Title: Splash proof drink through beverage container lid

Abstract: A sheet plastic lid for open-mouthed containers with a tear-away section therein is provided in which the tear-away section is removable by an upward and outward motion. A raised central area of the central web of the lid merges with the top surface of the rim or bead cavity and contains score lines defining a central tear tab and a major portion of the tear-away section, the lines diverging and stopping substantially inboard of the top surface of the bead cavity. Then with the lid on a container, when the tab is freed by penetrating the raised area at the innermost score lines it is pulled upward and outward to constrain the divergent score lines to effect predictable tears through the bead or rim cavity structure to remove the tear-away segment and leave the remainder of the lid intact on the container.

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Inventors: Boyle, Patrick T. (Baltimore, MD, US)

Application Number: 722402
Filing Date: 1976-09-13
Publication_date: 1977-11-01
Assignee: Maryland Cup Corporation (Owings Mills, MD)
Primary Class(es): 220/712 220/268, 229/906.1
Other Classes:
US Patent Ref:

2152322	Mar, 1939	Moore	229/7.
2209663	Jul, 1940	Reidel	220/1.
2399241	Apr, 1946	Merkle	229/7.
3227304	Jan, 1966	Asbury	220/268.
3301459	Jan, 1967	Gardner	220/90.
3362569	Jan, 1968	Geiger	220/268.
3410436	Nov, 1968	Foss et al.	215/253.
3777968	Dec, 1973	Law	229/7.
3800999	Apr, 1974	Serritella	222/541.
3994411	Nov, 1976	Elfelt et al.	220/90.

Other Refs:
Primary Examiner: Price, William
Assistant Examiner: Pollard, Steven M.
Attorney: Birch, Stewart, Kolasch & Birch