Patent ID: 11912472
Assignee: WEENER PLASTICS GROUP B.V.
Field: Handling (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A self-closing dispensing valve made of an elastic material, said valve comprising a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connector sleeve integrally connected with the valve head on one end and the retaining flange on another end, wherein:
the elastic material is a plastomer,
the valve head has a dome shape with a concave exterior side and a convex interior side,
the connector sleeve is substantially form stable and has a wall thickness, and furthermore has an exterior side and an interior side,
the valve head is connected to an upper end of the connector sleeve by a hinge portion that is U-shaped in cross section, and the hinge portion has an exterior side and an interior side,
wherein the hinge portion has a wall thickness which is smaller than the wall thickness of the connector sleeve, and wherein at a transition between the connector sleeve and the hinge portion, the interior side of the connector sleeve and the interior side of the hinge portion are flush with each other, and the exterior side of the connector sleeve and the exterior side of the hinge portion have a staggered transition.