Aerodynamic fastener shield for turbomachine
CA 2511734 C · Owner: Dong, Zhifeng · Inventors: Epstein, Michael J.; Dong, Zhifeng; Senyo, Jesse
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastener shield (100) for use in a fluid flow path within a gas turbine engine (10) for reducing fluid drag and heating generated by fluid flow over a plurality of circumferentially spaced fasteners (160). The fastener shield (100) has a radially-extending downstream-facing mounting flange (104) with a plurality of circumferentially spaced bolt holes (106) positioned to receive respective engine mounting bolts (160) therethrough and to attach the mounting flange (104) to elements of the turbine engine (10). A curved upstream-facing fastener shield cover (108) is positioned in spaced-apart relation to the mounting flange (104) for at least partially covering and separating an exposed …
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 7, 2005 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.