Corona treatment generator scn-01
CA 2311987 A1 · Owner: Nie, Xiaojun · Inventors: Nie, Xiaojun; Anca, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power Generator for use in textile & machinery industries. A tunable pulse-width-modulated signal is connected to the gatings of IGBT to provide a power, digital waveform at high frequency suitable for heavy duty corona surface treatment. Through the use of a high-Q snubbing circuit consisting of resistors capacitors and, diodes, a voltage of about 400 VDC is sent to a high ratio high frequency power, transformer to deliver 10 kilovolts high voltage power output for corona treatment. The, special feature of this generator is the digital automatic frequency follow-up and, adjustment based on line speed variations thus achieving the improved quality , production.
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 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2022.
- 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.