Method and apparatus for assembling gas turbine engines
CA 2507972 C · Owner: Giffin, Rollin George · Inventors: Giffin, Rollin George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fan assembly (32) for a gas turbine engine (16) includes a plurality of fan blades (40) coupled together such that the fan blades are arranged in a circumferential row (52) extending around a rotor disk (74) wherein each fan blade includes an airfoil including a first sidewall and a second sidewall connected together at a leading edge (42) and a trailing edge (44) and extends radially between a root (46) and a tip (48). The fan assembly also includes at least one shroud (60) coupled to at least one of the plurality of fan blade tips and extending circumferentially around the rotor disk and at least one row of rotor blades (90) extending radially outward from the at least one shroud. Each …
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 19, 2005 and granted April 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 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.