Automatic power factor correction system
CA 2449792 C · Owner: Mcdaniel, Timothy J. · Inventors: Mcdaniel, William D.; Mcdaniel, Gail A.; Mcdaniel, Timothy J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic power factor correction system (1) for an electrical power , installation (3) drawing varying levels of reactive power measures an , electrical parameter of the power drawn by a load (5) of the power installation (3) which is capable of indicating a level of reactive power drawn by the load (5) and couples a combination of capacitors (32) to the power line (4) to compensate for the level of reactive power indicated by the electrical parameter measured. In particular the system (1) measures the , phase angle of the power drawn and calculates a combination of capacitors (32) to connect to the power line (4) to compensate for a measured level of reactive powre.
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 June 4, 2002 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2024.
- 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.