Ignition plug waterproofing device, not soldered to the chamber wall
CA 2470069 C · Owner: Snecma · Inventors: Hernandez, Didier; Commaret, Patrice; De Sousa, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a combustion chamber comprising a chamber (5) wall disposed radially inside a casing (6) an igniter plug (3) for igniting the air-fuel mixture the plug being mounted on said casing (6) and comprising a body (2) with a free end (3a) that is disposed in an opening formed through said chamber wall with a large amount of clearance to accommodate relative displacement between said casing (6) and said chamber wall (5) and a sealing device (1) provided between said body (2) and the perimeter (8a) of said opening (8) said sealing device comprising an annular plug-guide (10) through which said body (2) passes the plug-guide being slidably mounted at the radially-outer end of …
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 11, 2004 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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.