Emulsification method and apparatus
CA 2018303 C · Owner: Orica Canada Inc. · Inventors: Smith, Jeremy Guy Breakwell; Oliver, Raymond; Villamagna, Fortunato
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A method for producing an emulsion explosive comprises introducing a liquid organic fuel phase and an immiscible liquid oxidiser phase into apparatus having a mixer chamber, flow constrictor means for introducing the liquid oxidiser phase as an emergent turbulent jet into the chamber to cause its fragmentation into droplets in situ within the chamber, means for introducing the fuel phase into the chamber so that the fuel phase introduced thereby contacts and becomes distributed around the droplets of oxidiser phase as they form to produce emulsion and further providing shear mixing means within the mixing chamber to effect enhancement of the mixing of the chamber contents and thereby to …
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.
Why it's free to use
- Filed June 5, 1990 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 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.