Apparatus for cleaning calender rolls and the like
CA 1291850 C · Owner: Svenka, Peter · Inventors: Svenka, Peter; Rauf, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for intermittently removing impurities from the periphery of a calender roll includes a rotary cleaning implement in the form of a brush or several felt discs and having an axial length in the range of 5-10 cm. The cleaning implement is reciprocable longitudinally of the roll along a suitable guide and can be driven back and forth by a motor so as to remove impurities which are detected by a mobile monitoring device. The latter can be mounted in or on a frame for the cleaning implement or is movable along the roll independently of the cleaning implement. The apparatus can be mounted at the inlet or outlet side of the nip of the calender roll with a companion roll. The frame for …
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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 November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 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.