Opening device with non-detachable tab

Claim 2

In an easy opening container, of the type having side walls and a container end wall joined in a seam, such container end wall being provided with aperture means therethrough for drinking or pouring, such aperture means having one peripheral edge portion near said seam and another peripheral edge portion near the center portion of said container end wall, the improvement comprising: a lip portion airtightly connected to said container end, said lip portion defining lip aperture means corresponding to said container aperture means and aligned therewith; a removable lip aperture means closure portion airtightly connected by bond means to said lip portion about the periphery of said lip aperture means; a hinge means connecting said removable closure portion to said lip portion adjacent said center portion of the container end wall; a pull tab having a pull tab grip adjacent said hinge means and having tab extension means connecting said pull tab grip to said removable closure portion adjacent the peripheral edge portion thereof nearest the said seam.

Claim 3

The apparatus of claim 1 wherein said tab extension means comprises two legs extending from said tab grip and encircling said removable portion substantially on the same level therewith.

Claim 4

The apparatus of claim 1 wherein said tab extension means is integral with said removable portion.

Claim 5

The apparatus of claim 1 wherein said hinge means is integral with said removable portion and said lip portion.

Claim 6

The apparatus of claim 2 wherein said tab extension means is integral with said removable portion.

Claim 7

The apparatus of claim 5 wherein said hinge means is integral with said removable portion and said lip portion.

Claim 8

The apparatus of claim 6 wherein said bond means is integral with said lip portion and said removable portion.

Claim 9

The apparatus of claim 7 wherein said container end and said lip portion define a single aperture.

Claim 10

The apparatus of claim 7 wherein said container end and said lip portion define a plurality of apertures.

Claim 11

In an easy opening container, of the type having side walls and a container end wall joined in a seam, said container end wall being provided with aperture means therethrough for drinking or pouring, such aperture means having one peripheral edge portion near said seam and another peripheral edge portion near the center portion of said container end wall, the improvement comprising: said end wall defining two container apertures generally off-center of said end wall and radially aligned; a resilient lip portion airtightly connected to said container end and having a top surface above and adjacent to said container end wall, said lip portion defining two apertures corresponding to said container apertures and aligned therewith, said top surface including edges about each of said lip portion apertures, said lip portion further defining snap grooves about each of said lip portion apertures below said top surface such that said lip portion apertures are larger below said top surface than at said top surface; a substantially planar resilient removable portion having two plugs on one surface thereof, said plugs corresponding to said lip portion apertures and having circumferential bead portions complementary to and airtightly engageable with said snap grooves such that said removable portion may reclose said lip portion apertures after the first opening of said removable portion; bond means airtightly connecting said removable portion to the edges defining said lip portion apertures; hinge means connecting said removable portion to said lip portion adjacent said other peripheral edge portion; a pull tab having a pull tab grip adjacent said hinge means and having tab extension means connecting said pull tab grip to said removable closure portion adjacent the peripheral edge thereof nearest said seam.

Claim 12

In an easy opening container, of the type having side walls and a container end wall joined in a seam, said container end wall being provided with aperture means therethrough for drinking or pouring, such aperture means having one peripheral edge portion near said seam and another peripheral edge portion near the center portion of said container end wall, the improvement comprising: said end wall defining two container apertures generally off-center of said end wall and radially aligned; a resilient lip portion airtightly connected to said container end and having a top surface above and adjacent to said container end wall, said lip portion defining two apertures corresponding to said container apertures and aligned therewith, said top surface including edges about each of said lip portion apertures, said lip portion further defining snap grooves about each of said lip portion apertures below said top surface such that said lip portion apertures are larger below said top surface than at said top surface; a substantially planar resilient removable portion having two plugs on one surface thereof, said plugs corresponding to said lip portion apertures and having circumferential bead portions complementary to and airtightly engageable with said snap grooves such that said removable portion may reclose said lip portion apertures after the first opening of said removable portion; bond means airtightly connecting said removable portion to the edges defining said lip portion apertures; hinge means connecting said removable portion to said lip portion adjacent said other peripheral edge portion; a pull tab having a pull tab grip adjacent said hinge means and having tab extension means connecting said pull tab grip to said removable closure portion adjacent the peripheral edge thereof nearest said seam.

Claim 13

The apparatus of claim 10 wherein said pull tab extension means comprises two legs extending from said tab grip and encircling said removable portion substantially on the same level therewith.

Claim 14

The apparatus of claim 10 wherein said tab extension means is integral with said removable portion.

Claim 15

The apparatus of claim 10 wherein said hinge means is integral with said removable portion and said lip portion.

Claim 16

The apparatus of claim 11 wherein said tab extension means is integral with said removable portion.

Claim 17

The apparatus of claim 14 wherein said hinge means is integral with said removable portion and said lip portion.

Claim 18

The apparatus of claim 15 wherein said bond means connect said plugs to said edges of said lip portion apertures.

Claim 19

The apparatus of claim 16 wherein said bond means is integral with said lip portion and said removable portion.

Claim 20

The apparatus of claim 17 wherein said lip portion is connected to said container end by means of locking grooves in said lip portion which grip said container end about said two container apertures.

Claim 21

The apparatus of claim 18 wherein said two lip portion apertures consist of a flow aperture farthest off-center and a smaller vent aperture near the center of said container end.