Double-wire paper-making machine
CA 1088788 A · Owner: Escher Wyss G.M.B.H. · Inventors: Stotz, Wolf-Gunter; Holik, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure The separator of the machine is constructed to retain the paper web on the inner (upper) wire upon separation of the two wires. To this end, the separator positions the roll for the outer (lower) wire downstream of the point of separation of the two wires. A suction box can be used in the separator roll to assist in retaining the paper web on the inner wire (Fig. 1). The inner wire extends from the separator along a straight run which defines an angle of less than 90° relative to the straight path traversed by the two wires upstream of the separator.
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 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 1997.
- 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.