Process for distributing turbomachine rotor blades
CA 2434487 C · Owner: Snecma · Inventors: Berger, Daniel; Tranchier, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of distributing the blades of a turbomachine rotor in which the radial and tangential static moments of a plurality of blades for making a rotor are initially measured and then the blades are classified in pairs on the basis of a determined selection criterion depending on said previously measured two static moments and finally the blades of the selected pairs are mounted one by one on the rotor in diametrically opposite positions. It is also possible to measure the axial static moment of the blades with the classification in pairs then being performed while taking account also of the axial static moment as measured in this way.
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 July 8, 2003 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2025.
- 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.