Valve
AssigneeObrist Closures Switzerland GmbH
InventorsMartin Bull, Peter Pargen
Life of this patent
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Abstract
A bi-injection moulded self-closing valve assembly is described. The assembly comprises a valve overmoulded on an insert. The overmoulded valve is injected using side gating of the mould.
Claims17
A self-closing valve assembly comprising a valve overmoulded on an insert, in which the insert is formed by lateral injection, and in which the overmoulded valve is injected by:
- generally central injection;
- off-centre injection;
- or lateral injection to form a valve injection point, in which the valve includes a valve head in which one or more slit lines are to be formed, and in which the valve injection point is located away from the one or more slit lines.
A self-closing valve comprising an injection moulded body formed from a TPE material, the injection moulded body includes a peripheral sidewall and a central valve head, in which an injection gate for the body is formed away from a centre of the valve head wherein the central valve head includes one or more slit lines, and in which the injection gate for the body is located away from the one or more slit lines.
Dependencies are inferred from the claim text.