Method and tool for forming a container having a flange encapsulated by injection-moulded material
A method and a tool (562) for forming a tray (100) or container (478) which may be hermetically sealed having a flange encapsulated by or formed from injection-mold material. The tray (100) has a flange (116) extending outwardly from a sidewall (114) of the tray, and containing irregularities induced by the creation of the tray (100). An encapsulating material surrounds the flange (116) in substantially uniformly thick manner, and along with the flange (116) defines an encapsulated rim (124). The encapsulating material is generally a plastic such as polyolefin, nylon, or polyethylene, but may also be made from other materials. This encapsulating material covers a portion of the flange (116) and extends a set distance from the flange's (116) outer edge.
Click here for the full patent text at DEPATISnet [PDF]
Published patent application
Disclosure date: 10-02-2007
Publication date: 08-10-2011
Applicant: GRAPHIC PACKAGING INT INC, US
Inventor: MIDDLETON SCOTT WILLIAM, US ; SINCLAIR MARK RICHARD, US ; O'HAGAN BRIAN ROBERT, US ; WNEK PATRICK HENRY, US ; LAFFERTY TERRENCE PHILIP, US ; BLAAS PETER WALRAVE, US ; HJORT KEVIN JAMES, US ; SMITH PATRICK JAMES, US
© European Patent Office. This information was obtained from the espacenet of the European Patent Office. There is no guarantee of its correctness or curency. For additional information, please use the research at espacenet. It is possible to determine the current legal and procedural status of patents and utility patents/models at http://worldwide.espacenet.com/ kfree of charge.