Multiple frequency electrostatic coalescence
CA 2597540 C · Owner: National Tank Company · Inventors: Sams, Gary W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of conducting the emulsion into a treatment vessel (10), providing an AC voltage source (46) employing from , the source an AC voltage of at least one selected frequency F1 (42) to establish at least one electric field (28 30) within the vessel (10) through , which the emulsion passes and cyclically modulating the AC voltage (42) with a method of modulation (44) selected from: (a) amplitude modulation; (b) frequency modulation; and (c) combined amplitude and frequency modulation.
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 February 2, 2006 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 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.