Sootblower nozzle
CA 2185561 C · Owner: Clyde Blowers, Inc. · Inventors: Jameel, Mohomed I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nozzle (40) for a sootblower is used to project a cleaning agent against the internal surface of a boiler for removing fireside deposit. The nozzle (40) of the present invention incorporates a passageway having a convergent segment between its entrance end most narrow point the throat (47). Extending from the, throat (47) to the nozzle's (40) exit is an expansion chamber (51) in which the cleaning fluid passing therein expands and drops in pressure to substantially ambient pressure. The flow streams of the jet of the cleaning agent discharged from the nozzle (40) is essentially parallel to the center axis of the nozzle (40). Additionally the nozzles (40) can be mounted diametrically …
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 February 2, 1995 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2017.
- 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.