Patents
Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078)
01/1984
01/24/1984US4426795 For use as a paper machine dryer felt
01/24/1984CA1160962A1 Sand trap for liquids used in the manufacture of cellulosic pulp
01/18/1984EP0098612A2 Press felt
01/18/1984EP0098502A2 Belt for use in wet presses of paper machines
01/17/1984US4426257 Damping system for a paper machine headbox
01/17/1984CA1160492A1 Crescent former cross deckle lip adjustment
01/17/1984CA1160491A1 Headbox for a papermaking machine
01/17/1984CA1160446A1 Dryer drum siphon
01/11/1984EP0098148A2 Process for manufacture of high bulk paper
01/11/1984EP0097966A2 Compound tissue for paper machines
01/10/1984US4425392 Needle punched papermaking felt and method of manufacturing the same
01/10/1984US4425189 Dehydrating blade for paper machine
01/10/1984US4425188 Forming shoes for the twin-wire former of a paper making machine
01/03/1984US4423755 Papermakers' fabric
01/03/1984US4423543 Method for the production of a link-belt
12/1983
12/28/1983EP0096952A2 Froth flotation apparatus and method
12/27/1983CA1159321A1 Combined size press and breaker stack and method
12/27/1983CA1159293A1 Two-ply screen for the sheet forming zone of a papermaking machine
12/27/1983CA1159292A1 Slice lip adjustment device
12/27/1983CA1159291A1 Head box in a paper machine
12/20/1983US4421819 Wear resistant paper machine fabric
12/20/1983CA1158903A1 Needle punched papermaking felt and method of manufacturing the same
12/20/1983CA1158902A1 Woven pin seam in fabric and method
12/13/1983US4420529 Anti-static dryer fabrics
12/13/1983US4420371 Energy absorbers for vibrating headboxes
12/13/1983US4420370 Pulp agitating device and method having multiple protruding inserts
11/1983
11/29/1983US4417950 Papermaking machine containing two movable water pervious dewatering bands
11/29/1983CA1157697A1 Lip adjustment device
11/23/1983EP0094638A2 Link belt and method of making the same
11/22/1983US4416731 Apparatus for controlling the position and location of a stationary device of a paper machine which acts on a paper web being manufactured therein
11/22/1983US4416730 Wire end section of a paper making machine
11/22/1983US4416070 Air-directing device for multiple cylinder dryer of paper machine
11/22/1983CA1157304A1 Method and apparatus for controlling a product which is influenced by a metering process
11/22/1983CA1157303A1 Headbox for a paper machine
11/22/1983CA1157302A1 Twin-wire web forming section
11/16/1983EP0094061A2 Apparatus for dissolution of pulp
11/15/1983US4415625 Spiral linkage belt and method of making same
11/15/1983US4415408 Apparatus, and method for controlling consistency
11/15/1983CA1156863A1 Use of anisotropic rubber for venta-nip rolls
11/10/1983WO1983003858A1 Dry paper machine
11/08/1983US4414263 Press felt
11/08/1983US4414062 Headbox of a paper machine
11/08/1983US4414061 Twin wire paper forming apparatus
11/08/1983CA1156440A1 Machine for fabricating building boards
11/02/1983EP0093096A2 A forming fabric
11/02/1983EP0092678A2 Fiber length indicating apparatus and methods
11/01/1983CA1156327A1 Extended low frequency range pulsation attenuator
11/01/1983CA1156081A1 Endless forming fabrics with bi-crimp characteristics
11/01/1983CA1156080A1 Papermaking machine containing two movable water pervious dewatering bands, for instance sieves
10/1983
10/25/1983CA1155695A1 Apparatus for reprocessing old paper
10/18/1983US4410015 Method and apparatus for producing an interwoven seam interconnecting two woven web portions
10/18/1983US4409853 Pulp sampling system
10/18/1983CA1155370A1 Dryer fabric and method of making it
10/13/1983WO1983003369A1 Cyclon purification plant
10/05/1983EP0090234A2 Injector for a flotation apparatus
10/04/1983US4407698 Apparatus for regulating fiber concentration
10/04/1983US4407330 Pressure pulse absorbing device
10/04/1983CA1154563A1 Papermaking and products made thereby
09/1983
09/27/1983US4406741 Adjustable headbox for a paper machine
09/27/1983US4406740 Apparatus for effecting the fine-adjustment of the lip of a head-box of a paper making machine
09/27/1983US4406739 Dewatering and detaching a paper web
09/21/1983EP0088859A2 A drum having a side carrying wall of a latticed structure for machines for the manufacture of paper, paper-board, asbestos cement or the like
09/20/1983CA1153962A1 Apparatus for treatment of suspensions in movement
09/20/1983CA1153922A1 Extended nip press
09/15/1983WO1983003109A1 Web-forming section of a paper machine
09/13/1983US4403632 Corrugator belt with high air permeability
09/06/1983CA1153275A1 Hydrophobic silica or silicate, compositions for containing the same, and methods for making and using the same
09/06/1983CA1153165A1 Method for recovery of wastewater residues
08/1983
08/30/1983US4401147 Portable instrument for measuring the permeability of a papermaker's felt
08/30/1983US4401137 Forming fabric seam and method of producing
08/30/1983CA1152932A1 Conveying and like structures
08/23/1983US4400238 Apparatus for stretching an endless web
08/16/1983US4399028 Froth flotation apparatus and method
08/16/1983US4398996 Papermaking
08/16/1983CA1151981A1 Low density multilayer papermaking fabric
08/16/1983CA1151925A1 Papermaking apparatus and method
08/10/1983EP0085363A1 A papermakers' fabric
08/02/1983US4396509 Device for extraction of liquid from suspensions in movement
08/02/1983CA1150913A1 Use of polyalkylene oxides for the separation of cellulose fibres
07/1983
07/26/1983US4395308 Spiral fabric papermakers felt and method of making
07/26/1983US4395038 Telescoping air jets for piling
07/26/1983US4394793 Roll for use in calenders or the like
07/26/1983CA1150872A1 Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic addition polymers, and nonionic and/or cationic surfactants
07/26/1983CA1150550A1 Slice lip
07/19/1983US4394413 Flame retardant dryer fabrics
07/12/1983US4392902 Method for producing a sieve belt of thermosettable synthetic resin helices for a papermaking machine
07/07/1983WO1983002294A1 Procedure for clarifying liquid suspensions, particularly those produced in processes of the wood-processing industry
07/07/1983WO1983002293A1 Method and plant for deaerating fibre suspensions
07/07/1983WO1983002292A1 Screen plate, screw press or the like for treatment of a suspension
07/05/1983US4391673 Basementless separator system
07/05/1983US4391672 Acoustic vibration cleaning
06/1983
06/28/1983US4390445 Aluminium chloride composition and a method for its manufacture
06/28/1983US4390433 Dewatering system with water deckle
06/28/1983US4390036 Rolling diaphragm vacuum control
06/28/1983CA1148735A1 Press-drying a cellulosic web
06/14/1983US4388150 Complexing cationic starch and colloidal silica
06/14/1983CA1148095A1 Screening device for extraction of liquid from suspensions in movement
06/14/1983CA1148003A1 Dryer felt fabric
06/14/1983CA1148001A1 Paper making machine foil having low disturbance profile and self sharpening tip
06/08/1983EP0080713A2 Link belt and method of making the same