Method for controlling rectifiers
CA 2088635 A1 · Owner: EßER, ALBERT · Inventors: EßER, ALBERT
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, METHOD FOR CONTROLLING RECTIFIERS ABSTRACT OF THE DISCLOSURE:, In a method for controlling rectifiers of an inductive element for reversible energy transmission first rectifiers are connected to a primary circuit of the inductive element and second rectifiers are connected to a secondary circuit of the inductive element. The first and the second rectifiers are switched in a constant timing ratio. The first rectifiers are controlled by a central signal source with a constant frequency. The second rectifiers are controlled with control signals derived from the changing potential at the inductive element. With this method it is possible to provide a control of the …
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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 February 2, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 2, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2015.
- 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.