Back to results
US 5,718,346 AGranted
Torque-resistant closure with a luer insert for a hermetically sealed container
AssigneeAutomatic Liquid Packaging, Inc.
InventorGerhard H. Weiler
Life of this patent
Estimating the term…
Abstract
An improved closure insert is provided for throat region of a blow-molded container. This closure insert is provided with a rough perimeter and is permanently molded into the container throat region during container formation from a parison. The resulting seal resists loosening or disturbance when off-axis force or torque force is applied to the closure insert during container opening.
Claims6
A hermetically sealed container of a thermoplastic material comprising:
- (a) a body portion having an upper end terminating in a neck portion unitary therewith;
- (b) a throat portion unitary with said neck portion;
- (c) a preformed closure insert immobilized within said throat portion;
- said closure insert having a rough perimeter surface defined by axially aligned fibs uniformly spaced from one another and an axially extending passageway defined therethrough;
- and
- (d) a removable overcap unitary with said throat portion and delineated by a peripheral frangible web circumscribing the closure insert above the rough perimeter surface, wherein the thermoplastic material in the throat portion of the container is in intimate contact with said rough perimeter surface and wherein spaces between said ribs are filled by the thermoplastic material;
- said closure insert being a luer connector.
4 more elements
Dependencies are inferred from the claim text.