Crack repair method
CA 2467107 A1 · Owner: Fernihough, John · Inventors: Ullmann, Oliver; Fernihough, John; Bogli, Andreas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed of repairing cracks (5) on a surface (6) of a component (1) such as gas turbine components. The method comprises the steps of repairing the cracks (5) of the component by brazing detecting by any means , remaining cracks (5) on the surface (6) or below the surface (6) which were , not properly filled with braze material (7) during the repair brazing operation and repairing the crack zones with a focussed low-heat input welding method using an appropriate weld filler material (10).
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 November 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2024.
- 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.