Method and device for measuring the nip force and/or nip pressure in a nip
CA 2106272 C · Owner: Allonen, Harri · Inventors: Allonen, Harri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and device for measuring the nip force and/or the nip pressure in a nip formed by a revolving roll or by a corresponding band employed in the manufacture of paper in which measurement detectors are arranged in a series and placed in the transverse direction of the revolving roll, preferably over the entire width of the paper web. The measurement signals of the detectors are passed to a measurement amplifier unit whose connectors are controlled so that, through the measurement amplifier unit the, signal of each measurement detector is passed to a telemeter transmitter placed in connection with the revolving roll. The telemetric messages is transmitted by the telemeter transmitter …
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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
- Filed September 15, 1993 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2015.
- 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.