End closure with resealable tab

Claim 2

A one-piece plastic end closure comprising a stationary base and a movable tab, said stationary base including a laterally extending opening defined in part by a peripheral edge, said tab being laterally substantially coextensive with said opening, said tab being movable relative to said stationary base between an initially closed position and an open position and reclosed position, said tab including a generally flat top portion and a skirt portion depending axially from said top portion, said skirt portion of said tab being disposed exteriorly of said peripheral edge and being connected to said stationary base at the location of said peripheral edge by a reduced thickness tearing web when said tab is in said initially closed position, said tearing web being constructed and arranged to break to permit movement of said tab from said initially closed position to said open position, said tab being disposed away from said opening when said tab is in said open position, said skirt portion of said tab being received within said peripheral edge of said stationary base when said tab is in said reclosed position, said skirt portion including a lowermost outside corner and said peripheral edge including an uppermost outside corner, and said reduced thickness tearing web being located at said lowermost corner of said skirt portion and at said uppermost corner of said peripheral edge.

Claim 3

A one-piece plastic end closure as defined in claim 1 wherein said skirt portion of said tab frictionally engages said peripheral edge of said stationary base substantially along the entire lateral extent of said skirt portion when said tab is in said reclosed position.

Claim 4

A one-piece plastic end closure as defined in claim 1 wherein said stationary base includes another peripheral edge cooperating with said first mentioned peripheral edge to completely define said opening, and said tab is hingedly connected to said other peripheral edge for rotational movement about said hinged connection between said initially closed position and said open position and said reclosed position.

Claim 5

A one-piece plastic end closure as defined in claim 1 wherein said peripheral edge is of predetermined shape, and said skirt portion is of similar shape to said predetermined shape of said peripheral edge.

Claim 6

A one-piece plastic end closure comprising a stationary base and a movable tab, said stationary base including a laterally extending opening defined by front and back and side peripheral edges, said tab being laterally substantially coextensive with said opening, said tab being movable relative to said stationary base between an initially closed position and an open position and a reclosed position, said tab including a generally flat top portion and a skirt portion depending axially from said top portion, said skirt portion including a front wall and side walls extending laterally substantially coextensively with said front and side edges respectively of said opening when said tab is in said initially closed position, said skirt portion of said tab being connected to said stationary base at the location of said front and side peripheral edges by a reduced thickness tearing web when said tab is in said initially closed position, said tearing web being constructed and arranged to break to permit movement of said tab from said initially closed position to said open position, said tab being disposed away from said opening when said tab is in said open position, at least some axial extent of the entire lateral extent of said front and side walls of said skirt portion being received within said peripheral edge of said stationary base when said tab is in said reclosed position, said tab including a back edge, said back edge of said tab being hingedly connected to said back edge of said opening when said tab is in each of said positions, said side walls extending between said front wall and said back edge of said tab, and the axial extent of said side walls adjacent said front wall being substantially greater than the axial extent of said side walls adjacent said back edge of said tab.

Claim 7

A one-piece plastic end closure comprising a stationary base and a movable tab, said stationary base including a laterally extending opening defined by front and back and side peripheral edges, said tab being laterally substantially coextensive with said opening, said tab being movable relative to said stationary base between an initially closed position and an open position and a reclosed position, said tab including a generally flat top portion and a skirt portion depending axially from said top portion, said skirt portion including a front wall and side walls extending laterally substantially coextensively with said front and side edges respectively of said opening when said tab is in said initially closed position, said skirt portion of said tab being connected to said stationary base at the location of said front and side peripheral edges by a reduced thickness tearing web when said tab is in said initially closed position, said tearing web being constructed and arranged to break to permit movement of said tab from said initially closed position to said open position, said tab being disposed away from said opening when said tab is in said open position, at least some axial extent of the entire lateral extent of said front and side walls of said skirt portion being received within said peripheral edge of said stationary base when said tab is in said reclosed position, said tab including a back edge, said back edge of said tab being hingedly connected to said back edge of said opening when said tab is in each of said positions, said side walls extending between said front wall and said back edge of said tab, and the axial extent of said side walls adjacent said front wall being substantially greater than the axial extent of said side walls adjacent said back edge of said tab.

Claim 8

A one-piece plastic end closure as defined in claim 5 wherein said top portion of said tab includes a gripping area, and said gripping area is adjacent said front wall of said skirt portion.

Claim 9

A one-piece plastic end closure as defined in claim 6 wherein said front wall includes a curved nose portion projecting laterally outwardly toward said gripping area, said curved nose portion is disposed in the middle of said front wall, and said curved nose portion provides an area of stress concentration for the breaking of said tearing web.

Claim 10

A one-piece plastic end closure as defined in claim 6 wherein said front and side walls of said skirt portion are disposed exteriorly of said front and side peripheral edges of said stationary base when said tab is in said initially closed position.