Device for stabilizing the run of a meterial web, specifically for stabilizing a paper web in the drying section of a paper machine
CA 1295478 C · Owner: J. M. Voith G.M.B.H. · Inventors: Meyer, Richard; Heinzmann, Helmut; Muller, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a device for stabilizing the run of a material web, which successively runs over two rolls namely a, delivering and a receiving roll there is a box, provided that extends between the delivering and the receiving roll across the width of the paper web. This box has a so-called guide wall that extends along the course of the material web, with an air gap remaining between the guide wall and the material web. Additionally provided on the box are means which create a vacuum in the air gap. In a device of this type, the guide wall is shaped in a way such that its spacing from the theoretical trajectory plane tangent to the two rolls is in the center area of the material web greater than it is …
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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
- Granted February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- 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.