Electric motor
CA 2324725 A1 · Owner: Hilti Aktiengesellschaft · Inventors: Kink, Christoph; Mayr, Martin; Augustin, Johann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The electric motor has a housing, in which a stator and a rotor are disposed. The whole of the interior of the housing with the exception of a stator , borehole which forms an accommodating region for the rotor is filled with a thermally, conductive composition of high impact strength. This composition surrounds the windings of the stator and protects the windings against damage that can be caused, by ground material with sharp edges which flows through the electric motor together with aspirated cooling air. A good dissipation of heat from the central, region of the electric motor to the housing of the electric motor results because the, composition has a very good thermal conductivity.
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 October 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 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.