Snowmaking nozzle
CA 1111463 A · Owner: White, Jeffrey A. · Inventors: White, Jeffrey A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a snow-making nozzle used in the production of artificial snow and which is to be connected to a pressurized supply of water and a pressurized supply of air for the concurrent passage of air and water therethrough. The nozzle has an upstream conically convergent section and a downstream conically divergent section. At the common point of intersection of these two sections, which is normal to the nozzle axis an annular throat is, defined. A restrictor being a body of revolution, is fixedly positioned in the divergent and convergent sections and includes a conically convergent downstream portion commencing proximate from the annular throat and within the divergent …
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
- Granted October 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 1998.
- 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.