High temperature turbine engine structure
CA 2068330 A1 · Owner: Carruthers, William D. · Inventors: Boyd, Gary L.; Carruthers, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2068330 9107572 PCTABScor01, A high temperature ceramic/metallic turbine engine (10) includes a metallic housing (12) which journals a rotor member (20) of the turbine engine. A ceramic disk-like shroud portion (46) of the engine (10) is supported on the metallic housing portion (54) and maintains a close running clearance with the rotor member (20). A ceramic spacer assembly (52) maintains the close running clearance of the shroud portion (46) and rotor member (20) despite differential thermal movements between the shroud portion (46) and metallic housing portion (54).
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 November 15, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2012.
- 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.