Method for weighing webs during manufacturing
CA 1292481 C · Owner: Sunds Defibrator Industries Aktiebolag · Inventors: Asberg, Per A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for continuously weighing a web (2) at the manufacture of fibre board. The device comprises a forming wire (1) and forming devices (3,5) for applying fibre material on the wire (1) and adjusting the thickness of the web (2). A weighing device (6) is located above the wire (1) directly after the forming device (3,5). Said weighing device (6) comprises a scales plate (7) and a separate doctor plate (8) located at the leading edge of the scales plate. The weighing takes place when the web (2) slides over the scales plate (7).
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 November 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 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.