Adjustable sprinkler nozzle
CA 2179599 C · Owner: Mckenzie, Jeff R. · Inventors: Mckenzie, Jeff R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved sprinkler nozzle (5) comprises a nozzle body having a nozzle received in a recessed seat provided in a peripheral wall of the nozzle body. The nozzle is formed with a plurality of nozzle ports (18) formed by the radially outer ends of a plurality of vertically flexible nozzle tubes (20). The flow volume of the water stream being thrown by the sprinkler nozzle (5) is adjusted by selectively operating a flow volume adjustment member carried on the nozzle body to selectively open or close various of the nozzle tubes (20) in various possible combinations. The flow volume of the nozzle (5) will comprise the combined or aggregate flow volumes of the water sub-streams being thrown by …
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 23, 1994 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 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.