Abstract: A lidded container is provided which is intended to deter unauthorized removal of the lid. The container has an out-turned lip of inverted U-section having a circumferential horizontal flange supporting an upright retention portion with a retaining bead. The lid has a rim portion which is also of inverted U-section, the web of the U having a formation engaging a complementary formation on the lip of the container to provide location and sealing connection between the lid and container, and the outer limb being outwardly cranked and forming a depending skirt having a retaining formation which interlocks with the retaining formation.Part of the flange is extended to form a tab which is removable at a line of weakening to facilitate separation of the lid and container. Removal of the tab indicates that the container has been opened or at least that it has been tampered with.

Abstract: A moulded plastics article, such as a container, having a blank of a plastics film material, as a label or diffusion barrier, at a surface thereof is manufactured by a method including the steps of cutting blanks individually from a strip of the plastics film material for each moulding operation, and feeding each cut blank to and introducing it into the mould ready for the respective moulding operation to be performed in which the blank becomes incorporated in the moulded article. The blank may be located in the mould by suction and/or blown air applied at the mould, or by electrostatically charging the blank to cause it to be attracted to a surface in the mould. The cut blanks are taken individually to the mould by a transfer arm which holds them by suction.

Abstract: A plastics article, for example a container lid, in which a blank 3 of sheet material is incorporated, as a label or diffusion barrier, as the article is moulded is manufactured in an injection mould the mould cavity of which contains a recess 7 into which the blank is received prior to injection of the plastics material. The blank is dropped from holder means externally of the mould cavity, preferably during relative closing movement between the mould halves 5, 6 and is caused to enter into the recess as it falls. The blank may be held in a guide track 12 or chute directed down into the mould cavity and be restrained by a stop 13 from falling until required to do so. Air may be applied to the blank as it falls to direct it into the recess.