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| Number | Title | Issue Date |
| 4354901 | Flexible absorbent boards An absorbent material is provided for body fluid absorbent products which material has relatively high tensile strength, and is extremely flexible and may be incorporated into absorbent products without substantial loss in user's comfort. The material is ... | 10/19/1982 |
| 4320162 | Multi-ply fibrous sheet structure and its manufacture In the manufacture of a multi-ply fibrous sheet structure, each of a pair of plies of fibrous web material is provided with a pattern of relatively deep, primary, spot embossments each adherent to the opposite ply and surrounded by a pattern of relatively... | 03/16/1982 |
| 4309246 | Papermaking apparatus and method A bulky, soft and absorbent creped paper web is manufactured by supporting an uncompacted wet web of principally lignocellulosic fibers on an imprinting fabric having compaction elements, for example knuckles formed at the warp and weft crossover points o... | 01/05/1982 |
| 4300982 | Wet press felt A papermakers press felt having a raised pattern of substantially incompressible islands which provide void area on the back of the felt for the free passage of water which has been squeezed from the felt by press rolls, allowing lateral as well as longit... | 11/17/1981 |
| 4287021 | Extended nip press An extended nip press for removing water from a traveling web in a paper machine including a press roll wth an elongate shoe having a concave surface facing the roll and forming an extended nip therebetween with an endless belt trained over the shoe for p... | 09/01/1981 |
| 4285766 | Press method in a paper machine A method in a paper machine press section for dewatering a wet paper web by threading the web in an improved way and avoiding crushing or stretching the web structure through at least three nips of the press section. The invention is particularly characte... | 08/25/1981 |
| 4284471 | Method for the production of a fibrous mat A suspension of artificial mineral fibers and cellulosic fibers is dewatered during shaping on a wire. The sheet is thereafter pressed and dried. A latex emulsion binder is added to the mat after the mat has been partially dried to a solids content of 60 ... | 08/18/1981 |
| 4257842 | Preparing permanently embossed, highly porous wallpapers Permanently embossed, highly porous wallpapers are produced by preparing a sheet from a mixture of up to 90% by weight of cellulose fibers and at least 10% by weight of fibrils of at least one thermoplastic polymer, and subjecting the sheet, in any order,... | 03/24/1981 |
| 4236962 | Method and apparatus for separating a web from a former wire and transferring the web to a press felt In a paper making machine, a method and apparatus for separating the web from the former wire and transferring the same to a transfer felt which preferably comprises a press felt wherein the web is carried by the former wire over a sector of a reverser ro... | 12/02/1980 |
| 4224104 | Paper manufacturing structure particularly for detaching a web from a wire A paper machine has a forming wire loop which transports a web to a detachment transfer roll situated inside said wire loop at a detaching location where the web is to be detached from the wire and transported to a press section. A relatively dry felt eng... | 09/23/1980 |
| 4209361 | Method of multi-nip pressing in a paper machine A method in a paper machine press section for dewatering a wet paper web by threading the web in an improved way and avoiding crushing or stretching the web structure through at least three nips of the press section. The invention is particularly characte... | 06/24/1980 |
| 4201624 | Extended nip press A press mechanism and method for removing liquid from a traveling fibrous web such as in a paper making machine including first and second elongate extended press nips including an endless looped traveling belt passing over spaced guide rolls with first a... | 05/06/1980 |
| 4192713 | Intermediate press nip of a paper machine press section A paper machine press section has an intermediate press nip defined between a pair of press rolls, a web conveying fabric in the form of a suitable felt or wire travelling between these press rolls together with a web carried thereby while engaging one of... | 03/11/1980 |
| 4188262 | Method for dewatering paper in a paper machine press section A method for feeding a paper web from a forming wire and for dewatering the web including the steps of urging a pick-up felt against the web on the forming wire, adhering the web by suction to the surface of a pick-up felt, transferring the web onto a tra... | 02/12/1980 |
| 4178251 | Apparatus for dehydration of sludge Sludge like sewage sludge is fed at the beginning of a path of travel of two endless belts of filter material. The sludge, carried between the two endless belts, is compressed and dehydrated between a drum which is supported in bearings with its periphery... | 12/11/1979 |
| 4172759 | Paper-machine structure and method for subjecting a web to suction In a paper-manufacturing machine a web is subjected to suction by placing a space between the web and a suction roll lapped thereby in communication with a region of substantially less than atmospheric pressure which is maintained at a part of the suction... | 10/30/1979 |
| 4154645 | Method and machine for manufacturing multilayer paper board A method and machine for manufacturing a multilayer paper board which includes an outer web bonded to a base web has the features of initially forming the outer web on a planar section of a single wire where through a suitable structure a first dewatering... | 05/15/1979 |
| 4139411 | System for forming and treating a narrow multi-layer web A continuous web of wood or cellulose pulp leaving a dewatering apparatus such as a suction mould or vat machine and having a relatively high content of water, is slitted in two or more longitudinal webs of approximately the same width. The narrow, slitte... | 02/13/1979 |
| 4115603 | Process for producing lithographic printing plates having a paper base In a process for the manufacture of a lithographic printing plate having a paper base and a lithographic printing surface thereon comprising a resinous coating, lower coat weights leading to high coating speeds can be obtained by first smoothing the base ... | 09/19/1978 |
| 4089738 | Method and apparatus for influencing the characteristics of the surface of a paper product During the manufacture of a paper product such as paper or cardboard, a moving web of sheet material which is to form the paper product is lapped over a roll while the relatively smooth, hard surface of a smoothing member is pressed against an outer surfa... | 05/16/1978 |
| 4086131 | Method for pressing bagasse webs A method and mechanism for forming a continuous traveling web from bagasse fibers including forming a web between a pair of looped traveling wires to dewater from both sides of the formed web, lifting the formed web off of one of the wires and immediately... | 04/25/1978 |
| 4081320 | Method and apparatus for separating a fibrous web from a foraminous belt The transfer of a fibrous web in a paper-making machine from a first foraminous belt to a second foraminous belt is facilitated by applying water to the side of the first belt opposite from the side on which the web is carried partially to wet the web, le... | 03/28/1978 |
| 4040899 | Production of high strength packaging papers from straw Modified paper which exhibits high tear resistance and toughness and which contains a high percentage of straw fibers and which has fibers consolidated in a three step process including drawing water off by vacuum, press drying and fiber upsetting.... | 08/09/1977 |
| 4036679 | Process for producing convoluted, fiberized, cellulose fibers and sheet products therefrom A process is provided for producing novel convoluted, fiberized substantially nonfibrillated, cellulose fibers and novel sheet products from low moisture-content cellulose pulp, at a high through-put rate, which includes the application of contortive forc... | 07/19/1977 |
| 4003784 | Method of lubricating resilient belt during web compaction Lubrication of a compacting resilient belt used in a web compacting system is facilitated by maintaining a constant depth pool of lubricating liquid between a fluid compactor bar and the inside surface of the belt on the belt approach side of the compacto... | 01/18/1977 |
| 3970515 | Controlled sequence pressure nip A press structure for performing a dewatering operation in the steps of formation of a traveling fibrous web such as in a paper making machine wherein the wet web is carried on one or more water absorbing felts through a press formed of a pair of extremel... | 07/20/1976 |
| 3957554 | Attachment of net to non-woven blanket without adhesive A method for attaching plastic nets to non-woven blankets without use of adhesives is disclosed. The net is positioned adjacent the non-woven blanket and then the strands of the netting are vibrated causing surface fibers of the blanket to surround the st... | 05/18/1976 |
| 3951735 | Process for preparing gypsum board A gypsum wallboard or plasterboard having a high mechanical strength, especially high impact strength, and a large bulk density is prepared from a mixture consisting essentially of calcined gypsum, cellulosic fibers, asbestos fibers, a setting retardant f... | 04/20/1976 |
| 3942433 | Roller arrangement in presses for the removal of water from materials This invention relates to an improvement in a roller arrangement for removing water from fibrous material in which the material is fed between a pair of endless sieve bands which rotate in contact with each of upper and lower rollers. The improvement comp... | 03/09/1976 |
