| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 01/02/1979 | CA1045433A1 Wet press in a tissue paper machine |
| 01/02/1979 | CA1045432A1 Stock formation in a paper making process |
| 01/02/1979 | CA1045431A1 Method of making biaxially oriented nonwoven fabrics |
| 12/26/1978 | CA1044931A1 Guide shower |
| 12/12/1978 | CA1044059A1 Wire cloth joint and a method and means for making the same |
| 12/12/1978 | CA1044058A1 Water removal from fiberboard |
| 12/05/1978 | US4128455 Papermaking |
| 12/05/1978 | CA1043609A1 Apparatus for collecting liquids |
| 11/28/1978 | US4127440 Process for purifying waste water obtained by a papermaking process |
| 11/28/1978 | CA1043380A1 Seal assembly for pressure or vacuum chambers |
| 11/21/1978 | US4126499 Method of manufacture of a rigid, perforated cloth |
| 11/21/1978 | CA1042696A1 Paper machine having a hydraulic headbox and a gas enclosure communicating therewith |
| 11/14/1978 | US4125429 Headbox turbulence generator and damping sheet |
| 11/14/1978 | US4125428 Vertical twin wire paper machine |
| 11/14/1978 | CA1042250A1 Felt conditioner for a paper making machine |
| 11/07/1978 | US4124441 Sheet forming apparatus including edge seals for forming wires |
| 10/31/1978 | US4123322 Fourdrinier paper machines |
| 10/31/1978 | US4123321 Removable head box for a paper making machine |
| 10/31/1978 | US4123320 Water control system including a pressure roll for suction rolls in papermaking machines |
| 10/31/1978 | US4123022 Seam for forming wires and dryer felts |
| 10/17/1978 | US4120349 Heat transfer roll |
| 10/10/1978 | US4119754 Coating yarn with abrasion resistant thermosetting resin |
| 10/10/1978 | US4119753 Papermaker's felt with grooved surface |
| 10/10/1978 | CA1040050A1 Automatic vacuum stabilizing valve |
| 10/03/1978 | US4118272 Continuous wet-laid process for making high-strength glass fiber mats |
| 09/26/1978 | US4116763 Separating system for wires of a double-wire paper-making machine |
| 09/26/1978 | US4116762 Porous felt web conditioning system |
| 09/26/1978 | US4116259 Damping structure in a pipe system delivering pulp suspension to a headbox |
| 09/26/1978 | CA1039025A1 Industrial polyester yarn |
| 09/19/1978 | USRE29770 Manufacture of fiberboard according to the wet method with closed backwater system |
| 09/19/1978 | US4115188 Method for recycling paper mill waste water |
| 09/19/1978 | US4114427 Apparatus for accurately measuring the freeness of paper stock flowing in a feed pipe |
| 09/12/1978 | US4113556 Paper machine with twin-wire former |
| 09/12/1978 | US4112982 Forming wire for use in paper-making, cellulose and similar machines |
| 09/12/1978 | US4112586 Method of drying a cardboard or a paper web and drying device for applying this method |
| 09/12/1978 | US4112570 Apparatus for forming a joint for wire cloth |
| 09/12/1978 | US4112565 Method of making strip-covered roll |
| 09/12/1978 | CA1038212A1 Web threading system |
| 09/05/1978 | CA1037753A1 Method and apparatus for supplying stock in the formation of a multi-ply web |
| 08/22/1978 | CA1036854A1 Separating system for separating two wires of a double-wire paper-making machine |
| 08/15/1978 | US4106981 Procedure for obtaining elements to support the wire in continuous forming tables of paper-making machines, and the elements derived thereby for supporting the wire |
| 08/15/1978 | US4106980 Thickener apparatus including a shaftless cylinder mold |
| 08/08/1978 | US4105495 Of multifilament, high modulus polyester yarns |
| 08/08/1978 | US4104773 Roll manufacturing method and roll, particularly for paper machines |
| 08/08/1978 | US4104772 Strip-covered roll and method for manufacturing the same |
| 08/01/1978 | US4104226 Pulp additives in paper manufacture |
| 08/01/1978 | US4104116 Papermaking |
| 08/01/1978 | US4103717 Seam webbing |
| 08/01/1978 | US4103565 Roll drive for paper machines and the like |
| 07/04/1978 | US4098642 Pressure pulp washer with inlet pivot |
| 06/27/1978 | US4096643 Paper web streak drying system |
| 06/20/1978 | US4095622 Woven seam in fabric and method of making same |
| 06/06/1978 | US4093512 Papermakers belts having ultra-high modulus load bearing yarns |
| 05/23/1978 | US4090897 Ultrasonic welding of thermoplastic fabrics |
| 05/16/1978 | US4089739 Head box having guide block and adjustable slice plates |
| 05/16/1978 | US4089210 Device for measuring filtering properties of paper pulp |
| 05/09/1978 | US4088531 Dewatering device for the wire section of a paper or board machine |
| 05/02/1978 | US4087321 Head box having distributor pipe connected to a pulp guide block |
| 05/02/1978 | US4087320 Apparatus for cleaning an endless belt having an affixed signal element |
| 05/02/1978 | US4086941 Biplanar papermaker's belt |
| 04/25/1978 | US4086130 Control system and method for a multi-channel paper machine distributor |
| 04/18/1978 | US4085003 Pressure pulp washer with pivoted baffle |
| 04/18/1978 | US4084302 Method of manufacturing, for a paper machine or the like, a roll having a grooved exterior surface |
| 04/11/1978 | US4083750 Flowbox with convergent wall portions |
| 03/28/1978 | US4081321 Movable deckle within headbox outlet |
| 03/28/1978 | US4081319 Continuous papermaking process |
| 03/28/1978 | US4080997 Flow straightener for a liquid flow |
| 03/07/1978 | US4077834 Device for the control of the tension of an endless belt or screen |
| 02/28/1978 | US4075740 Wire cloth joint and a method and means for making the same |
| 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 |
| 01/31/1978 | US4071193 Method of and apparatus for flow spreading |
| 01/31/1978 | US4071050 Double-layer forming fabric |
| 01/24/1978 | US4070238 Headbox for delivering a jet of well dispersed fibrous stock |
| 01/24/1978 | US4070237 Paper making process |
| 01/10/1978 | US4067770 Conditioner box guides |
| 12/27/1977 | US4064637 Cylinder dryer for paper machines |
| 12/20/1977 | US4063998 Fourdrinier fabric having contacting longitudinal threads |
| 12/20/1977 | US4063997 Hydraulic headbox and a gas enclosure communicating therewith |
| 12/20/1977 | US4063996 Vacuum, pressing |
| 12/13/1977 | US4062098 Guide roller and a method of manufacturing such a roller |
| 12/13/1977 | US4062097 Roll having magnetic deflection compensation |
| 12/06/1977 | US4061532 Adjustable suction device for a paper machine |
| 11/15/1977 | USRE29472 Conduit system for conveying fibrous stock from deaerator chamber to headbox in papermaking machine |
| 11/15/1977 | US4058435 Seal assembly for pressure or vacuum chambers |
| 11/08/1977 | US4057497 Method and apparatus for dispensing multi-component liquid suspensions |
| 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 |
| 10/25/1977 | US4055460 Paper machine shake |
| 10/25/1977 | US4055459 Method and apparatus for preventing the adherence of polarized foreign particles to paper machine components |
| 10/11/1977 | US4053353 Method of controlling basis weight of a cylinder board machine |
| 09/27/1977 | USRE29418 Flexible ceramic member having a pre-loaded tensile force applying means |
| 09/27/1977 | USRE29417 Papermaking system including a flexible ceramic member having a pre-loaded tensile force applying means |
| 09/27/1977 | US4050499 Head box for cylinder molds having a flexible lid element |
| 09/13/1977 | US4047993 Method of making an abrasion-resistant plate |
| 09/13/1977 | US4047666 Jet or spray producing apparatus |
| 09/06/1977 | US4046621 Process for treating a slurry of cellulosic material |
| 08/23/1977 | US4043622 Bearing assembly |
| 08/16/1977 | US4041989 Forming fabric and a method for its manufacture |
| 08/09/1977 | US4040899 Production of high strength packaging papers from straw |