Mould core of an injection moulding tool
CA 2493235 A1 · Owner: Lausenhammer, Manfred · Inventors: Lausenhammer, Manfred; Plass, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a mould core (1) of an injection moulding tool for injection moulding preforms in plastic. The mould core (1) consists of a hollow sleeve, closed at one end and having a central axis an outer surface , (3), an inner surface (4) and a hollow cooling tube positioned in the mould , core (1) at a distance from the inner surface (4) of said core and connected to coolant supply conduits and coolant drainage conduits. The aim of the invention is to increase the cooling effect of the mould core (1) in relation to previously used mould cores. To achieve this the cooling tube extends , coaxially in relation to the mould core (1) over approximately the entire length of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.