| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 10/02/1979 | CA1063404A1 Grooved roll |
| 10/02/1979 | CA1063343A1 Cylinder dryer for paper machines |
| 09/25/1979 | CA1062972A1 Papermakers fabrics |
| 09/25/1979 | CA1062942A1 Head box for a paper making machine |
| 09/25/1979 | CA1062941A1 Paper machine, in particular one for manufacturing tissue paper |
| 09/11/1979 | US4167441 Papermaking machine |
| 09/11/1979 | US4167440 For foraminous elements of papermaking machines |
| 09/11/1979 | CA1062061A1 Spray cleaning apparatus |
| 09/11/1979 | CA1062059A1 Device for acting on a web-shaped material |
| 09/06/1979 | WO1979000643A1 Paper machine headbox |
| 09/04/1979 | US4166759 Apparatus for damping pulp stock pressure fluctuations in a headbox |
| 09/04/1979 | CA1061621A1 Papermakers' felts |
| 09/04/1979 | CA1061620A1 Selectively mechanically pre-dried paper and system for manufacture of same |
| 08/28/1979 | CA1061150A1 Two tiered screen for paper making machine |
| 08/28/1979 | CA1061149A1 Damping device for a flow of liquid |
| 08/22/1979 | EP0003499A1 Process for the manufacture of water-soluble condensation products, their use in papermaking and process-aids containing these condensation products |
| 08/21/1979 | CA1060691A1 Headbox for delivering a jet of well dispersed fibrous stock |
| 08/21/1979 | CA1060690A1 Entangled non-woven web-forming apparatus |
| 08/14/1979 | US4164442 Ceramic |
| 08/14/1979 | CA1060245A1 Head box for a paper making machine |
| 08/09/1979 | WO1979000530A1 Device for comminuting fibers |
| 08/08/1979 | EP0003377A1 Ply-separable absorbent paper sheet and process for its manufacture |
| 08/07/1979 | CA1059926A1 Purification of papermarking waste water using pulp stock rejects as filter aid |
| 07/31/1979 | US4162937 Water-removal blade for paper-making machines |
| 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 |
| 07/31/1979 | CA1059355A1 Forming wire for use in paper-making, cellulose and similar machines |
| 07/31/1979 | CA1059354A1 Papermakers fabrics |
| 07/24/1979 | US4162189 Paper machine having a headbox provided with an air tank |
| 07/24/1979 | CA1058928A1 Wet press felt |
| 07/17/1979 | US4161195 Non-twill paperforming fabric |
| 07/11/1979 | EP0002841A1 Microturbulence generator for papermachine headbox and method of using the same |
| 07/10/1979 | CA1057986A1 Controlled deflection roll |
| 07/03/1979 | US4160048 Method of making a composite cast iron dryer or the like |
| 06/27/1979 | EP0002474A1 Polyamines containing amide groups and their use in paper manufacture |
| 06/19/1979 | US4158596 Traveling wire web former |
| 06/19/1979 | CA1056634A1 Head box guide for a paper making machine |
| 06/19/1979 | CA1056633A1 Continuous papermaking process |
| 06/14/1979 | WO1979000312A1 High-elasticity press felt |
| 06/12/1979 | US4157938 A jet of compressible fluid is emitted from slot extending across width of web |
| 06/05/1979 | US4157276 Paper machine fabric in an atlas binding |
| 06/05/1979 | CA1055752A1 Headbox trailing element mounting and method |
| 05/29/1979 | CA1055290A1 Machine and process for the production of paper |
| 05/29/1979 | CA1055206A1 Device and method for operation in an helical pattern inside a cylinder |
| 05/22/1979 | US4155177 Condensate control for dryer drum |
| 05/15/1979 | US4154649 Free adjustabiliy at different locations of upper lip and pre-lip independently |
| 05/15/1979 | US4154645 Bonded wed, dewatering |
| 05/08/1979 | US4153543 Fractionating apparatus |
| 05/08/1979 | US4153504 Twin-wire fibrous web former and method |
| 04/24/1979 | US4151323 Multilayer, resin-encapsulated fibers, dimensional stability |
| 04/24/1979 | CA1053091A1 Machine and method for making a laminate structure |
| 04/24/1979 | CA1053047A1 Paper machine headbox system |
| 04/24/1979 | CA1053046A1 Fibrous web former and method |
| 04/17/1979 | US4149571 Papermaking fabrics |
| 04/17/1979 | US4149303 Roll |
| 04/10/1979 | CA1052154A1 Web threading system |
| 04/10/1979 | CA1052153A1 Apparatus for cleaning an endless belt |
| 04/10/1979 | CA1052151A2 Wire cloth joint and a method and means for making the same |
| 04/10/1979 | CA1052150A1 Head box having a distributor pipe connected to a pulp guide lock |
| 04/10/1979 | CA1052149A1 Tissue paper machine |
| 04/10/1979 | CA1052148A1 Twin-wire former in a paper machine |
| 04/10/1979 | CA1052128A1 Mechanical drive for a drying and/or press roller or roll group in a paper or cellulose machine |
| 04/03/1979 | US4147101 Press for dehydrating fibrous materials and other substances |
| 04/03/1979 | US4146947 Spreader roll |
| 03/27/1979 | US4146428 Suction roll for paper machines |
| 03/27/1979 | US4146427 Head box guide block having bores and tubular inserts |
| 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 |
| 03/27/1979 | US4146052 Damping device for a flow of liquid |
| 03/27/1979 | CA1051245A1 A head box for a paper making machine |
| 03/27/1979 | CA1051243A2 Doctor blade for a papermaking machine |
| 03/20/1979 | US4145249 Shearing means for penetrating pulp stock on Fourdrinier machine |
| 03/20/1979 | CA1050798A1 Suction device for a paper machine |
| 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 | CA1050680A1 Retention aids and flocculants based on polyacrylamides |
| 03/06/1979 | US4142557 Synthetic papermaking fabric with rectangular threads |
| 02/27/1979 | US4141789 Headbox having pivoted bridging cover |
| 02/27/1979 | US4141788 Method of and means for forming multi-ply paper webs from a single headbox |
| 02/27/1979 | US4141388 Paper machine dryer fabric |
| 02/20/1979 | US4140574 Papermaking |
| 02/20/1979 | US4140573 Stock formation in a paper making process |
| 02/20/1979 | CA1048903A1 Paper machine fabric in an atlas binding and utilization thereof |
| 02/13/1979 | CA1048322A1 Web press for a paper machine |
| 02/06/1979 | US4138338 Filter for thickening suspensions of fibrous material |
| 02/06/1979 | CA1047815A2 Suction box for a papermaking machine |
| 02/06/1979 | CA1047752A1 Jointing of fabric ends to form an endless structure |
| 02/06/1979 | CA1047708A1 Manufacture of fibreboard according to the wet method with closed backwater system |
| 01/30/1979 | US4137124 Head box for a papermaking machine |
| 01/30/1979 | US4136546 Pressure roll |
| 01/25/1979 | WO1979000026A1 A method of producing a seam in double-layer forming fabrics |
| 01/23/1979 | CA1046902A1 Woven seam in fabric and method of making same |
| 01/23/1979 | CA1046816A1 Flowboxes |
| 01/16/1979 | US4134788 Drainage blade having a raised, smoothly rounded bearing surface |
| 01/10/1979 | EP0000250A1 A drainage foil for a web-forming machine |
| 01/09/1979 | US4133715 Headbox and holders for floating slice chamber dividers |
| 01/09/1979 | US4133713 Microturbulence generator for papermachine headbox |
| 01/09/1979 | CA1045862A1 Deflection-compensated roll with load imposed on its ends, in particular a press roll in a paper machine |
| 01/02/1979 | US4132592 Entangled non-woven web-forming apparatus |