High-speed electric machine
CA 2355427 A1 · Owner: Jung, Michael · Inventors: Jakoby, Ralf; Jung, Michael; Lebong, Markus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high-speed electric machine (10), comprises a rotatably mounted rotor (11) which, separated by an air gap (14), is surrounded concentrically by a stator (12) with two winding overhangs (18,19), and comprises means (20,..29) for cooling the rotor (11) and stator (12) by means of which a cooling medium, especially cooling air, is sent on a circuit through the rotor (11) and the stator (12), and the heat picked up by the cooling medium or the cooling air in the process is extracted again in a cooler (20). In such a machine improved and more cost-effecting, cooling is achieved by the cooling medium or the cooling air being guided on two largely mutually independent, preferably parallel, first …
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 August 16, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2023.
- 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.