Improved apparatus for guiding a web leader in a paper machine
CA 1267429 C · Owner: Valmet Oy · Inventors: Viitanen, Olavi; Kerttula, Reima
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement in apparatus for guiding a web leader from a press section to a drying section of a paper machine the, apparatus including flexible guide ropes forming a gap into which the leader is shifted, an initial air blow device for guiding the leader towards the drying wire of the drying section a first, blow member for detaching the leader from the drying wire and a second blow member for applying transversely directed air jets onto the leader to shift it into the gap formed by the guide ropes. According to the improvement, the second air blow device includes a blow member which is mounted for pivotal movement between a non-operating lateral position outside of the edge of the drying …
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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 April 3, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2007.
- 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.