Process and device for casting metal rods or the like
CA 2065351 A1 · Owner: Alcan International Limited · Inventors: Schwarz, Rudolf
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 process and a device for casting metal rods or the like in bag casting using a ingot mould (1) which sinks into a liquid bath (5) as it is being filled with the casting metal. The ingot mould pipe (1) is filled with casting metal through a filling pipe (11). The lower end of the filling pipe which is, lowered in advance into the ingot mould pipe has an, outlet opening (12). The ingot mould pipe is suspended with its lower end at approximately the same level as the liquid bath (5) or above until this introduction is almost complete. The casting metal is allowed to flow through the outlet opening (12) of the filling pipe (11) into the ingot mould pipe (1). …
Read the whole patent
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 August 30, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2012.
- 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.