Electric machine
CA 2064244 A1 · Owner: Bood, Louris · Inventors: Bood, Louris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electric machine comprising two or more rotors fixed coaxially at a distance from each other on a common shaft (1) each of which, is disposed inside a stator (3) a ball or roller bearing (5, 6), being disposed between every two rotors in order to support parts relative to the stationary part of the machine while the, rotors and/or stators (3) can be excited simultaneously or in succession, whereby the inner ring of the bearing (5 6) or of each, bearing (5, 6) is fixed on a shaft bush (4) which can be slid over the shaft (1) during maintenance and/or repairs and can then be, fixed relative to the shaft (1) on which shaft bush (4) several, bearings (6) for use as spares are located.
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 April 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2012.
- 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.