Cooling drum for a continuous casting system and method for manufacturing the same
CA 2126415 C · Owner: Sasaki, Kunimasa · Inventors: Yamamoto, Keiichi; Wakiyama, Youichi; Matsumoto, Takahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cooling drum which can continuously cast a favorable band-shaped cast piece having little thermal deformation and a method for manufacturing the same cooling drum, are disclosed. The cooling drum comprises a threelayer structure consisting of a rigid member 51 a cooling, member 53 metallurgically bonded to the outside of the rigid member 51, and a heat-resistance member 54 plated by electro-deposition on the outer circumferential surface of the cooling member 53. The rigid member 51 is made of austenite group stainless steel, the cooling member 53 is made of Cu or Cu-alloy, and the heat-resistance member 54 is made of either Ni or its alloy or Co or its alloy. Within the rigid member 51 …
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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 June 21, 1994 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.