초록 ▼

A plastics collar for retaining a plug lid 45 in a ring 44 double seamed to can body 1, has a peripheral skirt 38 portion having on its interior surface a snap fit bead 41 for entering under the double seam 3; a planar annulus 37 extending radially inwards from the top of the skirt over the seam 3 a

A plastics collar for retaining a plug lid 45 in a ring 44 double seamed to can body 1, has a peripheral skirt 38 portion having on its interior surface a snap fit bead 41 for entering under the double seam 3; a planar annulus 37 extending radially inwards from the top of the skirt over the seam 3 and at least part of the ring 44 and lid 45; and an annular rib 43 extending down from the planar annulus to hold the lid in the ring. The collar may be provided with a jacking screw 39 to assist removal from interlock with the double seam 3 and progressive removal is facilitated by a radial slit or line of weakness at which the collar first parts from the can.

대표청구항 ▼

A single collar of plastics material for retaining a plug lid in a ring double seamed to a can body, said single collar comprising a depending peripheral skirt portion having on its interior surface a snap fit bead for entering under the double seam; a planar annulus extending radially inwards form

A single collar of plastics material for retaining a plug lid in a ring double seamed to a can body, said single collar comprising a depending peripheral skirt portion having on its interior surface a snap fit bead for entering under the double seam; a planar annulus extending radially inwards form the top of the skirt over the seam and at least part of the ring and lid; and an annular rib extending down from the planar annulus to hold the lid in the ring, characterised in that the skirt, planar annulus and the annular rib are interrupted by a radial split defined by circumferentially opposing faces.