Balanced asymmetric electronic pulse patterns for operating electrode-based pumps
CA 2284268 A1 · Owner: Mcbride, Sterling Eduard · Inventors: Mcbride, Sterling Eduard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is a method of operating an electrode-based pump to pump a liquid the method comprising periodically reversing the voltage polarity applied to the electrodes of the pump while maintaining a net flow of liquid in a desired direction. Further provided is an apparatus for pumping liquid with an electrode-based pump comprising: a channel of capillary dimensions; a pump comprising at least two electrodes inserted into the channel; a controller for controlling the voltages applied to the electrodes such that the pumps operate under a sequentially repeated pattern of polarity cycles and such that over , the period of the repeated pattern either (a) a first ratio of a …
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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 March 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2020.
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Timeline
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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.