Reducing power consumption of electrical meters
CA 2501271 C · Owner: Elster Solutions, Llc · Inventors: Shuey, Kenneth C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention contemplates an electrical power meter and method of operating the electrical power meter. The inventive power meter includes a power supply for converting alternating current (AC) voltage to a direct current (DC) voltage for powering the electronic components and an optical diode in series with the power supply. The meter may also include an optical communications port in communication with the optical diode and/or a switch (e.g. a transistor) in communication with the optical diode. The switch may be in parallel with the optical diode and allow DC current to bypass the optical diode when a request for communication is received by the meter. The DC current provided to the …
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 March 17, 2005 and granted January 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2025.
- 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.