Crown Packaging Technology, Inc.

Carnaudmetalbox (holdings) USA Inc.

Mb Group Plc Engineering Company

Obrist Closures Switzerland Gmbh

Graham Martin Gossedge

Christopher Paul Ramsey

Sylvia Maria Farrow

Florian Christian Gregory Combe

Philip Norman Horton

Andrew John Wallis

Alan J Maskell

Andrew Jonathan Sant

John Moore

Michael William Needham

This invention relates to an improved closure in the form of an annular component () closed by a peelable lidding material (). More particularly, it relates to a closure which, in use on a container, is better able to respond differential pressure changes whilst also providing peelability.

Closure

A can end combination, a resealable beverage can, and a method of sealing a beverage can are disclosed. The can end combination may include a metal can end and a resealable closure coupled to the can end. The can end may include a center panel having an aperture formed therethrough. The closure may include a base plate and a top plate coupled to the base plate. The closure may have a sealed position in which the base plate contacts the center panel about the aperture to form at least one of a bore seal and a face seal. The closure may also have an intermediate position in which the base plate is proximate the aperture but the closure is devoid of the bore seal and the face seal. The closure may also have a fully open position in which the aperture is exposed to enable pouring liquid through the aperture.

Resealable beverage can ends

A lid 1 for a container body 8 having a side wall 7 portion at one end of which an annular portion 9 extends at an obtuse angle to the side wall to define the mouth of the container. The lid has an elastically deformable central panel 2 and a peripheral annular flange 3 which extends downwardly and outwardly from the central panel to define a seal surface to co-operate with the annular portion 9 of the body. When adhered or fused together the inclined portion of the lid and body receive the stress, arising as a thermal processing increases the volume of product packed, as a load in shear peel force being minimized.

Containers

A container comprising a body with a rim (6) of which at least the upper surface is of a first plastics material, and a flexible closure (8) of which at least the under surface is of a second plastics material different from the first, the body and closure being attached together by a heat seal formed between the said surfaces thereof, wherein the heat seal includes radially inner and radially outer ears (18,16) formed during the heat sealing operation by heat and pressure, each ear having a core (22,20) which is formed of the first plastics material and is joined integrally to the rim by a thin root (34,32), and an envelope (26,28) which is formed of the second plastics material integrally with the closure and which envelops the core and tapers in beneath the core to a position adjacent to the thin root of the core, both ears lying on the top of the rim around at least a substantial part of the container periphery, the closure having a free portion (10) located outside the heat seal for grasping by the user, and the closure and both ears being manually peelable together away from the rim by use of the free portion.

Container with peelable seal, and method for making the same

Growing community of inventors

Didcot, United Kingdom

Graham Martin Gossedge