Boundary layer coal nozzle assembly for steam generation apparatus
CA 2241135 C · Owner: Abb Alstom Power Inc. · Inventors: Mann, Jeffrey Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steam generating system (10) includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body (30) having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip (34) that is generally sleeve shaped and dimensioned to overlap an extremity of the body (30). The tip (34) is mounted for pivotal movement about the extremity of the body (30) and the nozzle tip (34) includes first and second surfaces (58 59) , dimensioned and configured for receiving therebetween all flow from the nozzle body (30). The apparatus also includes a seal plate (50) that is also generally sleeve shaped and dimensioned and configured to provide sealing …
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 October 28, 1996 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2018.
- 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.