Axial blower for corrosive environments featuring complex shaft seals
CA 1282752 C · Owner: Turbo-Lufttechnik Gmbh · Inventors: Kolb, Werner; Heingartner, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An axial blower having an impeller with adjustable vanes to convey gases containing corrosive constituents. The vanes are attached by means of bolts, which are passed from the interior of the impeller through a flange of the shank in the root of the vane for improving the corrosion protection. Sealing rings are provided between the root of the vane and the impeller and are pre-tensioned by spring elements. The pre-tension is such that on, displacements in the region of the sealing rings there is only a negligible, change in the pre-tensioned force against the sealing surface.
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 April 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 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.