Spray nozzle design
CA 2090865 C · Owner: Turbotak Technologies Inc. · Inventors: Spink, Donald R.; Janes, Gordon P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel cluster nozzle designs useful for the formation of atomized sprays of fine liquid droplets in a continuous gas phase are described. A plurality of individual gas-liquid mixing zones communicate with a common source of liquid and a common source of gas to form gas-liquid mixtures for spraying from individual orifices in the nozzle. An improved uniformity of spray pattern is attained, as well as the ability to effect a greater liquid output from the nozzle through the use of larger size or numbers of orifices, while retaining very uniform sprays, by effecting a degree of premixing of liquid and gas before passage to the individual gas-liquid mixing zones.
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 September 3, 1991 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.