| Patents for D21F 9 - Complete machines for making continuous webs of paper (2,705) |
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| 09/02/1980 | US4220502 Twin-wire web forming section in a paper machine |
| 08/19/1980 | CA1083869A1 Web transfer system |
| 08/05/1980 | US4216056 Paper machine having a water extraction box extension |
| 07/22/1980 | CA1082019A1 Double filter papermaking machine |
| 07/08/1980 | CA1081016A1 Twin-wire section of a paper machine |
| 06/24/1980 | US4209360 Two-sided drainage in a roll-type twin-wire former |
| 06/17/1980 | CA1079558A1 Papermaking machine |
| 06/10/1980 | US4207144 Papermaking machines |
| 05/06/1980 | CA1076865A1 Procedure and means in a paper machine for detaching the web from the forming wire and conducting it to the press section of the paper machine |
| 05/06/1980 | CA1076862A1 Procedure in the manufacturing of multiply cardboard and web forming unit applying the procedure |
| 04/15/1980 | CA1075511A1 Process for forming a paper web having improved bulk and absorptive capacity |
| 03/18/1980 | CA1073718A1 Twin wire free loop web former |
| 02/26/1980 | US4189845 Method and apparatus for electrostatically forming a layer of material from a slurry thereof |
| 02/19/1980 | CA1071912A1 Method of and means for forming multi-ply paper webs from a single headbox |
| 01/01/1980 | US4181568 Headbox for a paper machine for the production of a fiber web of at least two plies |
| 11/27/1979 | US4176005 Double filter papermaking machine |
| 11/27/1979 | CA1066934A1 Headbox for a paper machine for the production of a two- or multi-ply fiber web |
| 11/20/1979 | CA1066545A1 Vertical twin wire paper machine |
| 11/06/1979 | CA1065662A1 Twin wire former with wire orientation control |
| 11/06/1979 | CA1065660A1 Cylinder machine for the manufacture of paper with overthicknesses |
| 10/30/1979 | US4172759 Paper-machine structure and method for subjecting a web to suction |
| 10/16/1979 | CA1064294A1 Apparatus for forming a sheet |
| 10/09/1979 | CA1063851A1 Traveling wire web former |
| 09/25/1979 | CA1062941A1 Paper machine, in particular one for manufacturing tissue paper |
| 09/11/1979 | US4167441 Papermaking machine |
| 08/28/1979 | US4166001 Multiple layer formation process for creped tissue |
| 08/28/1979 | CA1061237A1 Treatment of fibrous material |
| 08/14/1979 | CA1060200A1 High bulk tissue apparatus |
| 07/31/1979 | US4162936 Manufacutring of paper, paperboard and non-woven fabrics |
| 07/31/1979 | CA1059356A1 Suction-roll in a press of a paper manufacturing machine and a method of subjecting a travelling fabric to suction when travelling over the suction-roll |
| 07/10/1979 | US4160694 Twin wire web forming with wire tension control |
| 07/03/1979 | CA1057546A1 Twin wire paper forming apparatus |
| 06/19/1979 | US4158596 Traveling wire web former |
| 06/12/1979 | CA1056185A1 Method and apparatus for forming a fibrous web |
| 05/15/1979 | US4154645 Bonded wed, dewatering |
| 05/08/1979 | US4153504 Twin-wire fibrous web former and method |
| 04/24/1979 | CA1053046A1 Fibrous web former and method |
| 04/10/1979 | CA1052149A1 Tissue paper machine |
| 04/10/1979 | CA1052148A1 Twin-wire former in a paper machine |
| 03/27/1979 | US4146426 Apparatus for the manufacture of paper and board |
| 03/27/1979 | US4146425 Papermaking machine headbox having a feed channel and an adjacent overflow sump |
| 03/27/1979 | US4146424 Twin wire former with wire orientation control |
| 03/20/1979 | CA1050741A1 Method of continuous manufacture of a sheet or element having a uniform consistency, and devices for carrying the method into effect |
| 03/13/1979 | US4144124 Machine for manufacturing paper such as tissue paper |
| 03/13/1979 | CA1050317A1 Method and apparatus for treating fibrous material |
| 02/27/1979 | US4141788 Method of and means for forming multi-ply paper webs from a single headbox |
| 02/13/1979 | US4139412 Multi-ply continuous paper web former |
| 01/23/1979 | US4135307 Method and apparatus for removing liquid from liquid bearing material |
| 12/26/1978 | CA1044857A1 Method of liquid-treating a running fibre web and a device for carrying out the method |
| 12/12/1978 | CA1044058A1 Water removal from fiberboard |
| 12/05/1978 | CA1043609A1 Apparatus for collecting liquids |
| 11/21/1978 | CA1042695A1 Double wire section in a paper machine |
| 11/14/1978 | US4125428 Vertical twin wire paper machine |
| 11/07/1978 | US4124441 Sheet forming apparatus including edge seals for forming wires |
| 10/31/1978 | US4123320 Water control system including a pressure roll for suction rolls in papermaking machines |
| 10/03/1978 | US4118273 Incorporation of fine perlite particles in slurry |
| 09/26/1978 | US4116763 Separating system for wires of a double-wire paper-making machine |
| 09/12/1978 | US4113557 Paper manufacturing structure particularly for detaching a web from a wire |
| 09/12/1978 | US4113556 Paper machine with twin-wire former |
| 08/22/1978 | CA1036854A1 Separating system for separating two wires of a double-wire paper-making machine |
| 08/15/1978 | US4106980 Thickener apparatus including a shaftless cylinder mold |
| 07/25/1978 | US4102737 Process and apparatus for forming a paper web having improved bulk and absorptive capacity |
| 07/18/1978 | US4101374 Dewatering device including a drum with radially slanted cells |
| 07/11/1978 | US4100018 Method and apparatus for forming a fibrous web |
| 03/28/1978 | US4081321 Movable deckle within headbox outlet |
| 02/14/1978 | US4073679 Cylinder for forming, guiding and/or transporting paper webs or the like |
| 01/31/1978 | US4071401 Separating system for separating two wires of a double-wire paper-making machine |
| 12/20/1977 | US4063996 Vacuum, pressing |
| 11/29/1977 | US4060449 Electrostatic method and apparatus for making a patterned, non-woven sheet |
| 11/01/1977 | US4056433 Ascending twin-wire paper machine without web pick-up |
| 10/25/1977 | US4055461 Paper machine with single-wire and curved twin-wire formers |
| 09/27/1977 | US4050162 Method and apparatus for removing liquid from liquid bearing material |
| 09/13/1977 | US4048008 Method of and apparatus for forming sheets of fibrous material between converging sieves |
| 08/30/1977 | US4045281 Method for preventing web rewetting |
| 08/09/1977 | US4040899 Production of high strength packaging papers from straw |
| 07/19/1977 | US4036684 High bulk tissue forming and drying apparatus |
| 07/05/1977 | US4033812 Tissue paper |
| 06/07/1977 | US4028175 Paper making |
| 06/07/1977 | US4028174 Apparatus for collecting liquids thrown from a moving member |
| 05/17/1977 | US4024015 Web-forming method and apparatus |
| 04/05/1977 | US4016031 Manufacture of composite materials |
| 03/29/1977 | US4014738 Sifting drum paper machine wherein the diluent water is controlled |
| 02/15/1977 | US4008122 Paper making machine with facing felt and forming wire |
| 01/25/1977 | US4004968 Consecutive multi-ply formers with an unencumbered doffer felt |
| 12/14/1976 | US3997390 Twin-wire paper machine and method for operating the same |
| 12/07/1976 | US3996098 Twin-wire paper machine with common wire path controls |
| 11/30/1976 | US3994774 Twin-wire paper machine adjustable to single-wire machine |
| 11/23/1976 | US3993537 Method of regulating a paper machine |
| 11/16/1976 | US3992254 Structure for separating a web and wire in a paper machine |
| 11/16/1976 | US3992253 Papermaking machine having a suction zone free of wire supports |
| 11/02/1976 | US3989587 System for installing endless belts in a machine for making multiple-ply paper products |
| 10/12/1976 | US3985612 Paper making system including forming fabrics and porous forming cylinders |
| 09/21/1976 | US3981084 Closed draw transfer system with gaseous pressure direction of web |
| 09/14/1976 | US3980518 Device for liquid-treating a running fiber web, including an arc-shaped duct |
| 08/31/1976 | US3977937 System for making a non-woven sheet by creating an electrostatic field action |
| 08/31/1976 | US3977928 Crushing, dispersing fibers, impregnation with adhesive compressing |
| 07/20/1976 | US3970514 Combination-paper machine |
| 05/04/1976 | US3954554 Multi-ply paper and paperboard having a wet-laid ply and a dry-laid ply |
| 04/20/1976 | US3951736 Single-layer and multi-layer paper making apparatus |
| 03/30/1976 | US3947317 Apparatus for adjusting and indicating position of a breast box lip |