Laser/powdered metal cladding nozzle
CA 2182083 C · Owner: Chromalloy Gas Turbine Corporation · Inventors: Buongiorno, Angelo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser powdered metal cladding apparatus (10) includes a removable conical nozzle (15) having a central opening (23) through which the laser beam and powdered metal exit the apparatus. The opening (23) extends to the front surface (53) of the nozzle that is in close proximity to the workpiece (25). Axial passageway (51) in the tapered wall of the nozzle extend rearward from the front surface (53) and are arranged in an array that is centered around the opening (23). Inert gas flows through these axial passageways (51) to cool the nozzle and to form an oxidation shield at the puddle of liquid metal (26). Wateror other cooling fluid is circulated through a water jacket (40) between apertures …
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 December 8, 1994 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2016.
- 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.