| 摘要 |
1405061 Portable containers; caps ILLINOIS TOOL WORKS Inc 5 March 1973 [7 March 1972] 10471/73 Headings B8D and B8T [Also in Division B5] A thin-walled plastics, e.g. polystyrene, container 10 is provided with a metal or nylon neck ring 18 adapted to receive a snap-fastening or screw-threaded cap 24 by assembling the ring on a cylindrical neck-forming portion 14a of a blown, injection-moulded or thermoformed preform 10a having a rim flange 16a, and reblowing or thermoforming the preform so that the ring is trapped between the rim flange and the container body portion 12, which is expanded into underlying engagement with the bottom edge of the ring. The neck portion also expands into an internal neck ring recess 21 complementary to the neck ring threads 20 or into one or more other recesses. The flange 16a also provides a resilient sealing surface for the cap. |
