Seated end process
AssigneeCrown Packaging Technology, Inc.
InventorsDavid Malcolm Hollingworth, Michael George Bonsall
Life of this patent
Estimating the term…
Abstract
A method of attaching a metal end (7) to a metal container body (6) in order to close an opening in the body, wherein the body (6) has a curled lip at least partially surrounding the opening and the end (7) has an upstanding lip extending at least partially around a periphery thereof. The method comprises locating the end (7) within the body (6) at or near said opening, bringing a curling tool (8) into contact with said upstanding lip of the end (7) and applying a force to that lip, via the curling tool (8), in order to curl the upstanding lip around the curled lip of the body (6) to form interlocking curls.
Claims14
A method of attaching a metal end to a metal container body in order to close an opening in the body, wherein the body has a curled lip at least partially surrounding the opening and the metal end has an upstanding lip extending at least partially around a periphery thereof, the method comprising the steps of:
- locating the metal end within the body at or near said opening such that said upstanding lip projects inwardly, from the periphery of the metal end, in a direction into the container body;
- bringing a curling tool through the container body into contact with said upstanding lip of the metal end;
- and
- applying a force to said upstanding lip, via the curling tool, in order to curl the upstanding lip around the curled lip of the body to form interlocking curls within the container body.
A method of attaching a metal end to a metal container body in order to close an opening in the body, wherein the body has a curled lip at least partially surrounding the opening and the metal end has an upstanding lip extending at least partially around a periphery thereof, the method comprising the steps of:
- locating the metal end within the body at or near said opening such that said upstanding lip projects inwardly, from the metal end, into the container body;
- bringing a curling tool through the container body into contact with said upstanding lip of the metal end;
- and
- applying a force to said upstanding lip, via the curling tool, in order to curl the upstanding lip around the curled lip of the body to form interlocking curls within the container body,
- wherein said curling tool has a curling surface for engaging said upstanding lip such that during said step of applying a force said upstanding lip flows initially in an outward direction, relative to centre of the body.
A method of attaching a metal end to a metal container body in order to close a first opening in the body, wherein the body has a curled lip at least partially surrounding the opening and the metal end has an upstanding lip extending at least partially around a periphery thereof, the method comprising the steps of:
- introducing the metal end into the body via a second opening in the body;
- locating the metal end within the body at or near said first opening such that said upstanding lip projects inwardly, from the periphery of the metal end, in a direction into the container body;
- bringing a curling tool through the container body into contact with said upstanding lip of the metal end;
- and
- applying a force to said upstanding lip, via the curling tool, in order to curl the upstanding lip around the curled lip of the body to form interlocking curls.
Dependencies are inferred from the claim text.