Electrical power distribution device with isolation monitoring
CA 2073289 A1 · Owner: Merlin Gerin · Inventors: Vincent, Francois; Barjonnet, Jean-Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrotechnical power supply installation with several, sources (1 to 4) and interconnectable networks (4 to 7) and an, overall isolation monitor (CPIl to CPI4) and at least one locator (LOCI to LOC4) on each network (4 to 7). All the monitors (CPI1 to CPI4) and locators (LOCI to LOC4) are connected by a local computer network (32). Means (34 to 40) are provided for testing the open or closed state of the contacts of the circuit breakers (Dl to D7) and for transmitting this information to a management unit (33) which via the local, network (32), orders exclusion of the monitors (CPI2 CPI3), which are superfluous in one and the same configuration (4,5,6). Refer to figure 1.
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 July 7, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2014.
- 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.