High-voltage power switch with a field electrode
CA 2179201 A1 · Owner: Meinherz, Manfred · Inventors: Meinherz, Manfred; Kynast, Edelhard; Gilmozzi, Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High-Voltage Power Switch with a Field Electrode According to the invention, in a high-voltage power switch with a first and a second contact piece (1 2) that delimit, an air gap in the switched-off state a compression piston, (3) that surrounds the first contact piece (1) a drivable, compression cylinder (4) that surrounds the second contact piece (2) in the switched-on state, and a first field electrode (9) that surrounds the second contact piece (2) in the switched-off state and is axially movable in relation thereto, the first field electrode (9) is insulated from the compression cylinder (4) and axially movable in relation thereto and the compression cylinder (4) exhibits a distance in …
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 December 7, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2016.
- 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.