Crown Packaging Technology, Inc.

Nicholas James Caunter

Christopher Paul Ramsey

Ian Maxwell

Lucy Michelle Winstanley

Maurice Riviere

Tanya Ruth Gledhill

A can for packaging food, comprising a metal can body and a diaphragm lid () formed of lidding material which comprises a multilayer structure with at least an aluminum layer of from 6 to 90 microns thickness and a bond layer for fixing the lid () directly to the can body. One method for forming the can forms the lidding material by using an outwardly extending curl () at one end of the metal can body as the draw die. Lidding material which is carried by the body maker punch is drawn around the curl of the can body draw die so as to form the lidding material into a cup shape.

Packaging can and method and apparatus for its manufacture

A metal closure is described, in the form of a foil lid () bonded to a metal annular component (such as a container body or separate intermediate ring). The foil lid () and annular component are made of dissimilar metals, with the closure adapted to prevent bimetallic corrosion at the interface between the dissimilar metals of the foil lid and the annular component. The closure is adapted such that the lid comprises a peripheral wall which is upstanding from the annular component such that a gap is maintained between the annular component and an exposed metal peripheral edge of the lid. Further aspects of the invention include: i. a method for making such a metal closure; and ii. an apparatus for making such a metal closure.

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Taplow, United Kingdom

Nicholas James Caunter