Atomising nozzles
CA 2097701 C · Owner: Dunne, Stephen T. · Inventors: Dunne, Stephen T.; King, Anthony W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method for discharging a fluid notably an , aqueous medicament solution as a spray of, droplets by causing a fluid to flow through a nozzle orifice (104) which , method is characterised in that a secondary flow is induced in at least part of the flow of fluid through the nozzle orifice aperture (104) by a direction changing means (106) located within the bore of the nozzle passage, and/or at or immediately adjacent an end of the nozzle passage and/or at or immediately adjacent the nozzle orifice aperture. Preferably the direction changing means induces a secondary flow at the nozzle orifice which is equivalent to at least 10 % of the fluid flowing at an …
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 4, 1991 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2013.
- 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.