Receptacles – Closures – Secondary closure within parameter of primary closure
Patent
1993-10-12
1998-08-11
Shoap, Allan N.
Receptacles
Closures
Secondary closure within parameter of primary closure
220335, 220337, B65D 4324, B65D 5118
Patent
active
057915083
ABSTRACT:
The opening device comprises a closure flap (7) which is pivotable about a hinge (2), so that a pouring opening (4) is able to be opened and closed again. The edge (5) of the pouring opening (4) is elastically deformable. A projection (12) is provided in the form of a device for keeping open the closure flap (7) in such a way that the projection (12) is pulled over the edge (5) of the pouring opening (4) during the opening operation, and then bears on the edge and keeps the closure flap (7) open. To close it again, the projection can be pressed by slight pressure over the edge of the pouring opening. The new proposed design of the device for keeping a flap open advantageously prevents the device from becoming damaged in the closed condition, possibly if packs provided with the opening device are stacked. In addition, the device for keeping flaps open is very simple to manufacture.
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Kopsidas Niki M.
Nauman Joseph G.
Shoap Allan N.
Tetra Laval Holdings & Finance S.A.
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