Lined closure made by the unscrewing process

Details Lined closure made by the unscrewing process Lined closure made by the unscrewing process

B - Operations, Transporting

65

D

206/19

B65D 41/04 (2006.01) B65D 50/00 (2006.01) B65D 50/04 (2006.01)

Patent

CA 1284127

ABSTRACT OF THE PRESENT INVENTION A two-piece child-resistant closure having a molded plastic inner component and a molded plastic outer component, the inner component having a double ended liner retention bead that projects radially inwardly from the inside of an annular skirt portion to retain a sealing liner in a position that is adjacent to the underside of a top panel portion thereof without the need for an adhesive, the inner portion further having a helically extending thread that projects radially inwardly from the annular skirt portion, the thread having an uppermost portion with a 0° helical angle that is positioned between the spaced apart ends of the double ended liner retention bead to reduce the required vertical spacing between the liner retention bead and the start of the helical thread to permit the closure to be applied to a container with a standard finish portion. The inner component is made by a process in which it is removed from the molding tooling by unscrewing for maximum resistance to stripping from the finish of the container to which it is to be applied.

539560

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