Dust reduction in delivery of particulate commodities
CA 2543108 C · Owner: Wiche, Stephen John · Inventors: Krull, Tobias; Wheeler, Craig Anthony; Wiche, Stephen John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus (1) for reducing dust emissions from particulate commodities during discharge from an outlet (5); including a curved duct (4) having an inlet (3) and said outlet (5) and delivery means (2) arranged to deliver particulate commodities to the inlet (3) at or above a predetermined delivery velocity the curvature of said duct (4) being determined in combination with said delivery velocity to cause dust arising from the particulate commodities to be re--entrained within the commodities as the commodities are diverted from a straight path by the curvature of the duct (4).
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 April 13, 2006 and granted February 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.