Axial fan
CA 1280388 C · Owner: Turbo-Lufttechnik Gmbh · Inventors: Kolb, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An axial blower with an intake that tapers conically into a cylindrical component. An impeller rotates inside the cylindrical component. A stationary channeling ring of approximately the same diameter as the cylindrical component is positioned upstream of the impeller and surrounded by an annular channel. The channeling ring is approximately equidistant from each end of the annular channel. Guide vanes are positioned inside the annular channel and adjusted in relation to its axis. To make the blower easier and less expensive to manufacture and to increase its breakaway limit the guide vanes consist of flat sheets of metal and both their upstream and their downstream edges slope.
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
- Granted February 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2008.
- 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.