Turbomachine rotor assembly with two bladed-discs separated by a spacer
CA 2388778 C · Owner: Snecma · Inventors: Beutin, Bruno; Thore, Monique; Guigli, Elisabeth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spacer (36) made to be installed between two permanently connected discs (31 and 32) without a , bolted flange, and comprising axial thrust (43 47) as , well as outer radial thrust (45 48) alignment surfaces , (41). It comprises moreover an outer cover (37) to provide sealing and a cooling passageway and , stiffening tongues (38) which accommodate thrust loads.
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 June 3, 2002 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2024.
- 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.