Snow making, multiple nozzle assembly
CA 2015646 C · Owner: Delta M3 Technologies Corporation · Inventors: Ringer, Thomas Rayman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snow making, multiple nozzle assembly is provided comprising a tubular casing having an upstream end wall and an outwardly bulging downstream wall containing a plurality of snow making, supersonic air, expansion and liquid atomizing nozzle orifices circumferentially spaced therearound with radially inwardly extending air grooves therebetween in the outer bulging surface. A tube plate partitions the casing interior into an upstream water compartment and downstream air compartment, and for each snow making nozzle orifice contains a water jet nozzle for directing a water jet into a central portion of that snow making nozzle orifice. Pressurized water fed into the water compartment causes …
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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 April 27, 1990 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2012.
- 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.