Containers
AssigneeCarnaudmetalbox (Holdings) USA, Inc.
InventorPeter James Hinton
Life of this patent
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Abstract
The invention is directed to a method of manufacturing a double seam joining a can end (2) to a can body (1) which includes a sidewall (13) terminating in an outwardly directed flange (16) having a flange angle (.alpha.) within the range of 0 to -45.degree.. During the support of the can end (2) upon the flange (16) of the can body, seeming rolls (37, 38) form a double seam while an axial load of 600N or less is applied to force the can end and the can body one against the other.
Claims16
A method of making a double seam joining a can body (1) to a can end (2), the can body having a sidewall (13) terminating in an outwardly directed flange (16), the flange angle (.alpha.) being within the range 0 to -45.degree., said method comprising the steps of:
- a) supporting the can body (1),
- b) applying a can end (2) to the flange (16) of the can body,
- c) applying one or more operation seaming rolls (37, 38) to a peripheral end of the can end to progressively form a double seam by a relative rolling motion,
- characterised in that:
- d) an axial load is applied to force the can end and the can body one against the other, and
- e) the axial load applied between the can end and the can body is 600N or less.
A method of joining a can body (1) to a can end (2) with a double seam, the method comprising the steps of:
- a) forming an outwardly directed flange (16) on the peripheral edge of the sidewall of the can body, the flange angle (.alpha.) being within the range 0 to -45.degree.,
- b) supporting the can body (1),
- c) applying a can end (2)to the flange (16) of the can body,
- d) applying one or more operation seaming rolls (37, 38) to a peripheral end of the can end to progressively form a double seam by a relative rolling motion,
- characterised in that,
- e) an axial load is applied to force the can end and the can body one against the other, and
- f) the axial load applied between the can end and the can body is 600N or less.
Dependencies are inferred from the claim text.