Method for reducing the power consumption of an electric motor
CA 2286883 A1 · Owner: Conrad, Wayne · Inventors: Conrad, Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are provided for controlling the electrical power applied to an electric motor. The method is based on modulating the electric power supply with a pulse train. Pulses of the pulse train have characteristics of frequency, voltage and pulse width. At least two of these are modified or modulating, in accordance with an algorithm to reduce, the power supply to the motor or otherwise to cause the motor to run more efficiently.
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 October 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2021.
- 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.