Cooling means for the motor of a turbocompressor
CA 2312085 C · Owner: Man Turbomaschinen Ag Ghh Borsig · Inventors: Dessibourg, Dominique; Grob, Denis; Pradetto, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The turbocompressor (1) comprises an outwardly gas-tight housing (6) within which an electric motor (2) and also a multistage radial turbocompressor (3) are arranged on a common shaft (13) wherein for the journalling of the shaft (13), electromagnetic radial bearings (5) are arranged spaced apart in the direction of its extent and wherein a gas seal (19) surrounding the shaft (13) is arranged between the electric motor (2) and the radial turbocompressor (3) in order to seal off the electric motor (2) with respect to the radial turbocompressor (3) wherein the electric motor (2) has an inner space (9b 9c) which is connected in fluid conducting manner to an outlet opening (6h; 21) which passes …
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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 June 21, 2000 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.