Abstract: Snap fitment systems (500) and valve systems (200, 800) for holding valves, pumps, sprayers, or other devices to a container (100) may include plastic components which snap to a container allowing the valve system to be used to evacuate product in the container or allowing the valve system to be used to fill and evacuate product in the container.

Abstract: A device is provided which is non-removably mounted in the mouth of a bottle and which prevents or obstructs the addition of adulterating liquids to the contents of the bottle. The device includes a plastics tubular body 13 having detachably attached to its lower end a non-return valve comprising a ball 14 and a seating ring 15, and a baffle disc 18 formed integrally with the body covers the ball. The body 13 is secured in the bottle mouth by a flanged plastics collet 16 having at its lower end integral resilient tongues 31 which are forced into engagement with a shallow channel 11 on the internal surface of the neck by the act of pressing the body 14 and valve down into the position shown, the valve seating ring 15 having a frusto-conical external surface for this purpose. Upward movement of the body relative to the collet is prevented by a shoulder 22 on the body which comes into abutment with the lower ends of the tongues 31.

Abstract: A device for insertion into the neck of a bottle, to prevent refilling and reuse of the bottle after its original liquid contents have been depleted. The device includes a valve which opens to permit decanting of the original liquid contents of the bottle, but which closes to prevent refilling of the bottle. Flexible locking means are provided which permit the ready insertion of the device into the neck of the bottle, and prevent its removal following insertion.