Gas turbine air separator
CA 2264282 C · Owner: Iwasaki, Yoichi · Inventors: Aoki, Sunao; Ai, Toshishige; Suenaga, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air separator for a gas turbine, in which cracks are prevented from occurring at a flange portion of the air separator due to the fretting fatigue. On the other hand the air separator is easily replaced by that of the prior art. An air separator 20 has a cylindrical split structure of separators 20-1 and 20-2, of which the separator 20-1 is mounted on a rotor 1 whereas the separator 20-2 is mounted on a disc portion 7 on the side of a moving blade 2 by bolts 28 through bolt holes 23 of a flange portion 22. Cooling air from a compressor enters a space 6 from a duct 5 and passes a passage 32 from a clearance 33 so that it is fed to air feed holes 43 and radial holes 44 of the disc portion …
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 18, 1998 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2020.
- 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.