Resistance and charging monitor within a standby battery bank
CA 2308526 A1 · Owner: Deltatee Enterprises Ltd. · Inventors: Gunthorpe, Gary E.; James, Donald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method are provided for measuring the series resistance of each individual cell of a battery bank for establishing the readiness, of the batteries. The invention comprises a switch in series with a load connected across each cell of the battery. An electronic switch momentarily imposes the load on the cell and the value of the current drawn from the battery, and the voltage across it is measured with an A/D device. A controller directs a, plurality of the switched loads on a plurality of cells. The A/D device and controller on each cell communicates their measurements to a remote host computer, preferably via an RF serial modem. The host computer calculates the internal …
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 May 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2022.
- 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.