Leading sheave mine winding engine with improved cooling air conduction
CA 2579206 C · Owner: Deilmann-Haniel Mining Systems Gmbh · Inventors: Heep, Rolf; Bauer, Norbert; Finkenbusch, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a Koepe winder or drum winder comprising an electric motor (5) for , driving winding ropes (11). The rotor (6) of said motor is connected to the cylinder jacket (4) of , the Koepe winder (2) and the stator frame (7) is fixed on a support structure that has a hollow , shaft (3). The winder is characterised by an improved ventilation system. The motor (5) is , located inside the cylinder jacket (4) in a cavity (12) between the plates (13) of the Koepe winder , (2), said cavity being supplied with cooling air to ventilate the motor (5) from the exterior. The , hollow shaft (3) is formed by two half-shafts (18 19), which together with at , least one support disc …
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 September 8, 2005 and granted January 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.