Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21F - Paper-making machines; Methods of producing paper thereon › D21F 1 - Wet end of machines for making continuous webs of paper
Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078)
08/1996
08/27/1996US5549967 Papermakers' press fabric with increased contact area
08/27/1996US5549793 Control of dilution lines in a dilution headbox of a paper making machine
08/27/1996US5549792 Headbox for a paper machine
08/27/1996US5549790 Multi-region paper structures having a transition region interconnecting relatively thinner regions disposed at different elevations, and apparatus and process for making the same
08/25/1996CA2170300A1 Jet device
08/25/1996CA2170299A1 Belt cleaning device for papermaking machines
08/22/1996WO1996025551A1 Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor
08/22/1996WO1996025289A1 A device for thickening of pulp
08/22/1996DE19520494A1 Verfahren zum Wiedergewinnen von Fasern und/oder Kaolin A method for recovering fibers and / or kaolin
08/22/1996DE19505280A1 Seaming ends of woven material into a continuous loop
08/22/1996CA2211573A1 Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor
08/21/1996EP0726982A1 Woven belt for a corrugated cardboard machine
08/21/1996EP0726879A1 Method of purifying waste water
08/20/1996US5546643 Method to reduce forming fabric edge curl
08/15/1996WO1996024717A1 A wearing element, such as a foil or a cover of a suctionbox in a paper machine wire section
08/14/1996EP0625220B1 Weave shed formation apparatus
08/14/1996EP0489094B2 Twin-wire paper-web former
08/14/1996DE4439889C1 Continuous belt tension control, giving constant draw tension value at edges
08/13/1996US5545294 Multilayer headbox
08/13/1996US5545293 Controlling total pulp flow by regulating concentration of subflows combined into pulp flow by adjusting flow rates of each
08/13/1996US5544678 For a paper making machine
08/06/1996US5542455 Papermaking fabric having diagonal rows of pockets separated by diagonal rows of strips having a co-planar surface
08/01/1996WO1996023101A1 Method of apparatus for cleaning of fabrics, particularly fabrics of a paper machine
08/01/1996DE19505381C1 Method of damping flow pulses in fibrous suspensions in paper production
07/1996
07/31/1996EP0723613A1 A forming apparatus for forming a web from stock
07/31/1996CN2232051Y Vacuum suction box face plate for paper-making machine
07/31/1996CN1127816A Method and arrangement for producing a foam-formed fibre or paper web
07/25/1996WO1996022504A1 Unit equipped with measuring and indicating devices for adjusting position of an actuator
07/24/1996EP0722521A1 Device for forming a plane liquid jet
07/24/1996EP0722520A1 Paper machine dryer fabrics
07/17/1996EP0721528A1 Fractionator
07/17/1996EP0721526A1 Method and apparatus for dewatering of a fibre suspension
07/17/1996EP0721517A1 Woven fabric
07/17/1996EP0633962B1 Paper machine dryer fabrics containing hollow monofilaments
07/17/1996CN1127019A Apparatus for making soft tissue products
07/16/1996US5536372 Wires for carrying and covering, shoes with ribbed decks and dewatering units with spring blade wire loading device
07/16/1996US5536371 Papermaking sludge recovery process and apparatus
07/16/1996US5536370 Condensates of polyalkylenepolyamines, their preparation and their use in papermaking
07/16/1996US5536363 Methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems using a composition comprising of polyvinyl alcohol and gelatin
07/11/1996WO1996021060A1 Apparatus for cleaning papermachine clothing
07/11/1996CA2202772A1 Apparatus for cleaning papermachine clothing
07/10/1996EP0720677A1 Yarn positioning apparatus
07/10/1996CN1032266C Headbox apparatus
07/09/1996US5534333 Spiral fabric
07/09/1996CA2086666C Tenter for treatment of an endless fabric
07/09/1996CA2083371C Papermaking belt and method of making the same using a textured casting surface
07/03/1996EP0719360A1 A multilayer headbox
07/02/1996US5531251 Method of making loop seam for double layered papermaking fabric
07/02/1996CA2068103C Press fabrics for paper machines
06/1996
06/26/1996EP0717799A1 Process and apparatus for manufacturing absorbent granular material
06/26/1996CN1125278A Method of seam closure for sheet transfer and other paper processing belts
06/25/1996US5530346 Method and apparatus for determining the size and shape of a slot by measuring a magnetic field produced along an edge thereof
06/25/1996US5529664 Making strong soft absorbent paper web by contacting preformed web with papermaking belt, applying fluid pressure differential from backside to deflect fibers and remove water, imprinting web, drying
06/25/1996US5529190 Gas sparged hydrocyclone with foam separating vessel
06/25/1996CA2053239C Twin-wire former
06/20/1996WO1996018495A1 Dewatering apparatus
06/20/1996CA2205461A1 Dewatering apparatus
06/18/1996US5527433 Varying fluid flow with throttle device; spacing adjustment
06/18/1996US5527432 Method of dry separating fibers from paper making waste sludge and fiber product thereof
06/18/1996CA2021355C Method for regulation and on-line measurement of the fibre orientation in a web produced by means of a paper machine
06/13/1996WO1996017984A1 Multilayer forming fabric
06/13/1996DE19545386A1 Bespannung für eine Papiermaschine Fabric for a paper machine
06/12/1996EP0716183A2 Papermaker's fabric
06/11/1996US5525410 Press fabric
06/11/1996US5524355 Method and device for the transport of a liquid-gas mixture in a paper making machine
06/11/1996CA2123399C Controlled jet injection apparatus for a papermaking machine headbox
06/09/1996CA2164573A1 Papermaking fabric formed with yarns having a multi-lobed cross-section
06/08/1996CA2160519A1 Papermakers fabric having a system of macnine-direction yarns residing interior of the fabric surfaces
06/06/1996WO1996017125A1 Papermaker's fabric containing fibers with fins having a reduced cross-sectional area within the fin
06/06/1996WO1996016743A1 Flotation apparatus and deinking method
06/06/1996CA2206245A1 Stable, reduced permeability papermaker's fabrics containing fibers withfins designed to distort at lower force levels by having a reduced crosssectional area within the fin
06/05/1996EP0715018A1 Improvements in devices for injecting air in a paperstock for deinking
06/05/1996DE4443181A1 Anti-clogging treatment for press felt in paper machines
06/05/1996CN1123851A Press fabrics for paper machines
06/04/1996US5522969 Eliminating formation of water-to-air meniscus to achieve maximum dewatering
06/04/1996CA2084054C Papermakers fabric with flat machine direction yarns
06/04/1996CA2067986C Wire loading device in a paper machine
05/1996
05/30/1996WO1996016226A1 Apparatus and process for screening a fibre suspension and process for producing paper utilizing the same
05/30/1996WO1996007789A3 Papermakers fabric
05/29/1996CN2228092Y Device for recovering and using paper-making pulp-water
05/29/1996CN1123346A Papermaker's forming fabric
05/28/1996US5520781 Ethoxylated nonylphenol, sodium hexadecyl diphenyl oxide disulfonate, imidazoline, /alkylamidopropyl/dimethylamine
05/23/1996WO1996015319A1 Method for dewatering in paper manufacture
05/23/1996CA2206544A1 Method for dewatering in paper manufacture
05/22/1996EP0712959A2 Set of ribs in a dewatering device in a paper machine
05/22/1996EP0712958A2 Composite-type seaming pintles
05/22/1996EP0712957A2 Endless multilayer fabric for densifying paper materials and production process thereof
05/22/1996EP0712454A1 Gap former in a paper machine
05/21/1996US5518042 Papermaker's forming fabric with additional cross machine direction locator and fiber supporting yarns
05/21/1996US5517714 Device for cleaning a circulating screen
05/21/1996CA2121967C Method of reducing surface irregularities in paper machine headbox components
05/17/1996WO1996014463A1 Apparatus for dewatering or washing papermaking stock
05/15/1996EP0711869A2 Multi-layer headbox
05/15/1996EP0711369A1 Method and apparatus for treating filler-containing metarial, such as recycled fibers
05/15/1996EP0573524B1 Forming fabric
05/09/1996WO1996013635A1 Method for making smooth uncreped throughdried sheets
05/09/1996DE19505572C1 Circular wire cylinder for paper machine
05/08/1996CN1121989A Roll manufacture
05/07/1996US5514523 Papermaking belt and method of making the same using differential light transmission techniques
05/07/1996US5514456 Spiral link belt with low permeability to air and method for its production
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