Casting machine having a travelling block mold assembly
CA 2000618 A1 · Owner: Ishikawajima-Harima Jukogyo Kabushiki Kaisha · Inventors: Komatsu, Masami; Ozeki, Akichika; Nakada, Masayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A casting machine comprises a pair of travelling block mold assemblies each having a plurality of block mold members endlessly connected to one another to define a cavity, and a mechanism for driving the block mold members such that the block mold members of one travelling block mold assembly move in synchronism with those of the other in a casting direction. Latticed grooves are formed on at least an area of the inner wall of each of the block mold members which combine with one another to form the cavity. Delays in the solidification of molten steel in the cavity are intentionally caused by these grooves, with the rsult that the concentration of contraction stress caused by the …
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 October 13, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2011.
- 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.