Can end and method for fixing the same to a can body
AssigneeCrown Cork & Seal Technologies Corporation
InventorsMouayed Mamdooh Brifcani, Peter James Hinton, Mark Christopher Kysh
Life of this patent
Estimating the term…
Abstract
A can end (22) comprising a peripheral cover hook (23), a chuck wall (24) dependent from the interior of the cover hook, an outwardly concave annular reinforcing bead (25) extending radially inwards from the chuck wall, and a central panel (26) supported by an inner portion (27) of the reinforcing bead, characterised in that, the chuck wall (24) is inclined to an axis perpendicular to the exterior of the central panel at an angle between 20.degree. and 60.degree., and the concave cross-sectional radius of the reinforcing bead (25) is less than 0.75 mm.
Claims9
A can end comprising;
- a peripheral cover hook;
- a chuck wall dependent from an interior of the cover hook;
- an outwardly concave annular reinforcing bead extending radially inwards from the chuck wall;
- and
- a central panel supported by an inner portion of the reinforcing bead;
- wherein the chuck wall is inclined to an axis perpendicular to the exterior of the central panel at an angle between 40.degree. and 60.degree., and a concave cross-sectional radius of the reinforcing bead is less than 0.75 mm.
A can end comprising:
- a peripheral cover hook;
- a chuck wall dependent from an interior of the cover hook;
- an outwardly concave annular reinforcing bead extending radially inwards from the chuck wall;
- and
- a central panel supported by an inner portion of the reinforcing bead;
- wherein the chuck wall in inclined to an axis perpendicular to the exterior of the central panel at an angle between 30.degree. and 60.degree., and a concave cross-sectional radius of the reinforcing bead is less than 0.75 mm;
- wherein the can end is made of a laminate of thermoplastic polymer film and a sheet aluminum alloy;
- and
- wherein the laminate comprises a polyethylene teraphthalate film on an aluminum-manganese-alloy sheet less than 0.25 mm thick.
Dependencies are inferred from the claim text.