Beverage can lid able to withstand pressure

Details Beverage can lid able to withstand pressure Beverage can lid able to withstand pressure

B - Operations, Transporting

65

D

190/143, 190/78

B65D 17/28 (2006.01) B65D 6/34 (2006.01) B65D 8/00 (2006.01) B65D 8/04 (2006.01) B65D 8/12 (2006.01) B65D 17/00 (2006.01) B65D 17/34 (2006.01) B65D 41/02 (2006.01) B65D 43/02 (2006.01) B65D 51/20 (2006.01)

Patent

CA 1146488

A B S T R A C T The pre-fabricated pouring outlet (2) in a lid (1) for cans containing carbonated drinks lies basically at an angle of 0 or 90° to the rolling direction (x) of the sheet from which the lid is made. The surface (3) of the lid features at least one ring-shaped stiffening groove (6) which points towards the can interior, is concentric with the periphery of the lid and is interrupted in the region of the pouring outlet (2). The diameter (d) of the groove (6) is 65-80% of that of the nominal diameter (D) of the can. The stiffening groove raises the resistance of the lid to- wards pressure from inside the can by about 10%. This means that, when manufacturing a lid which has to withstand a specific pressure from inside the can, and using the same material, the thickness of the lid can be reduced to save material. - 1 -

362562

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