Installation and method for producing ready-to-use casting shells or core assemblies
CA 2174551 C · Owner: Landua, Werner · Inventors: Pichler, Werner; Landua, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an installation for the production of ready-to-use casting shells or core assemblies comprising at, least two linearly aligned core-shooting machines or stations (1), the core-shooting machines (1) having two tool assemblies (4) which differ from each other at least slightly and which each comprise an upper tool (2) and a lower tool (3) plus identical, transfer elements (5) which act as the lower tool (3) of the first core-shooting machine (1) and also convey the core (6) or core assembly along a transfer track (7) through the installation. In order to reduce the space required while ensuring an extremely simple construction the installation is, designed in such a way …
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 December 1, 1994 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2016.
- 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.