Control lever fastener with slack adjuster on blades with variable blade angle
CA 2464809 C · Owner: Raulin, Dominique · Inventors: Raulin, Dominique; Chatel, Alain Jean Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The manufacturing cost of the device is relatively low.The device comprises mainly a first end (46) of a control lever (90) provided with a drive hole (45) that drives the driving part (16) of a blade (10) through a first contact area (41). The close contact between thes two parts in this area is obtained using a play compensation plate (50) bearing on a side part (47) of the control lever (40) and fixed to the assembly using a nut (60) screwed onto the external pivot (11) of the blade (10). Application to turbine engines.
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 May 4, 2004 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2026.
- 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.