Oil-damped bearing
CA 2442949 C · Owner: Snecma Moteurs · Inventors: Dusserre-Telmon, Guy; Plona, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rolling bearing for a turbomachine supporting a first shaft (4) to rotate relative to a second shaft (6) and comprising: a plurality of rolling elements (12) engaged between an inner annular ring (14) mounted on the second shaft and an outer annular ring (16) mounted on the first shaft; an oil film (18) formed at an annular contact surface between said outer ring and said first shaft; at least one duct (34) passing through said inner ring and opening out in an inner race for said rolling elements in order to lubricate them; and at least one additional duct (38) passing through said inner ring and opening out outside the inner race in order to feed oil through said outer ring to said oil …
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 September 29, 2003 and granted January 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 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.