Fail-resistant solid state interruption system
CA 2074268 A1 · Owner: Liptak, Julius M. · Inventors: Fixemer, James V.; Liptak, Julius M.; Ward, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid state circuit interruption arrangement in a distributed power network provides fast and reliable circuit interruption. A common power source (10) provides power to a plurality of loads (12, 14) via respective current paths. A main circuit breaker (16) and a plurality of solid state circuit breakers (18 20) are, arranged to interrupt the current paths in response to command signals sent from a central controller (22). Current sensors (24 26), and voltage sensors (28, 30) are coupled to the current paths for monitoring purposes. An automatic controller (22) responds to any of the current sensors (24, 26) detecting a fault condition by automatically generating a command signal which …
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 November 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2013.
- 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.