Method and apparatus for hardening of foundry cores
CA 1075427 A · Owner: Luber, Werner · Inventors: Luber, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method of hardening foundry cores made of a mixture which includes sand curable compounds in which, to harden the core the core is exposed to, a core-forming apparatus and to a mixture of a gaseous catalyst and a carrier gas, and to compressed air wherein, in order to, accurately predetermine the volume pressure and temperature of, the gaseous catalyst-carrier gas mixture and of the compressed, air being applied to the core the method comprises the step of, segregating and temporarily storing the mixture of gaseous catalyst and carrier gas in a first vessel (8); segregating and temporarily storing compressed air in a second vessel the, volume pressure, and …
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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
- Granted April 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 1997.
- 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.