Abradable seal assembly
CA 2216068 A1 · Owner: Wang, Hougong · Inventors: Wang, Hougong; Hajmrle, Karel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thermally sprayable powders for the formation of abradable seals and abradable, seals formed by thermally spraying the powders suitable for use with Ti alloy blades at temperatures up to 700°C are disclosed. The powder includes an alloyed metal phase material and a solid lubricant type ceramic phase material. The alloyed metal phase material includes a major amount of at least one matrix metals selected from the group consisting of Ag and Cu, at least one melting point depressing metal selected from the group consisting of Si, B, Mn, and Al, and at least one oxidation resistant metal selected from the group consisting of Al, Cr, and Si. The solid lubricant-type ceramic phase material is …
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 September 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- 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.