Rotor armatures of electromagnetic retarders and to their manufacturing processes and devices
CA 2055076 A1 · Owner: Labavia - S.G.E. · Inventors: Bardon, Olivier; Estaque, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements to the rotor armatures of electromagnetic retarders and to their manufacturing process and devices. ABSTRACT, This concerns a rotor armature of an electromagnetic retarder, comprising at least one disk (2) axially prolonged over one of its faces by a plurality of fins (9), each fin being delimited by two faces which are parallel or substantially so, and are inclined with the corresponding radii, the tips of these fins being connected together by an annular flange (11) and the assembly of the disk, of the fins and of the flange being formed all in one piece molded from a ferromagnetic material. This rotor comprises, between the disk (2) and the flange (11), between the fins (9) …
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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 November 6, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2013.
- 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.