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| Number | Title | Issue Date |
| 7303655 | Apparatus for conditioning a fabric in a papermaking machine and associated method An apparatus is provided for conditioning a fabric being advanced in a machine direction in a papermaking machine. The fabric has an outer side adapted to engage a paper web and an opposing inner side. Such an apparatus comprises a fluid-emitting device configured t... | 12/04/2007 |
| 7166194 | Water jet cutter A water jet cutter for separation of a trim strip from a moving paper, cardboard, tissue or other type of fiber web, in a machine for the production and/or conversion of the fiber web, including at least one nozzle whose water jet is directed onto the fiber web. An ... | 01/23/2007 |
| 7131297 | Canvas cleaning apparatus for use in paper mill Disclosed is a canvas cleaning apparatus for use in a paper mill. The apparatus includes a main injection unit for injecting cleaning water having an injection head moved from side to side, an auxiliary injection unit for injecting the cleaning water enclosing the i... | 11/07/2006 |
| 7001486 | Vacuum device for paper web making apparatus A vacuum device for a paper web making apparatus has a housing having an outer web-facing surface and a vacuum channel extending within the housing and having an opening at the web-facing surface. A vacuum source is in fluid communication with the vacuum channel and... | 02/21/2006 |
| 6592721 | Apparatus for dewatering a suction papermaking roll An air delivery device is provided for dewatering a suction roll in a paper machine by applying pressurized air to expel residual water or debris outwardly from through-holes. The air delivery device is positioned at a suitable circumferential position of... | 07/15/2003 |
| 6468397 | Scarfing shower for fabric cleaning in a wet papermaking process A system and process for removing unwanted fibers from a forming fabric during a wet papermaking process is disclosed. The system includes a scarfing shower configured to emit a cleaning fluid that contacts the forming fabric. In particular, the cleaning ... | 10/22/2002 |
| 6153056 | Device and method for draining a paper machine felt Draining device and method for draining water from an interior surface of a felt belt loop circulating in a run direction via centrifugal force at a region of convex curvature of the interior surface of the felt belt. The draining device includes jets pos... | 11/28/2000 |
| 6126788 | Apparatus for dewatering of paper machine felts An apparatus for the dewatering of a traveling press felt carries a purging fluid to the inside surface of the felt loop. The purging fluid flushes water from the felt into receptacles inside the felt loop. Purging nozzles oriented in the cross machine di... | 10/03/2000 |
| 6099691 | Apparatus for cleaning a papermaking machine forming fabric A method and apparatus for cleaning the forming fabric used on a papermaking machine includes a chamber surrounding a span of the forming fabric on either side thereof. A source of sub-atmospheric air pressure is connected to the chamber for removing wate... | 08/08/2000 |
| 5964960 | Cleaning device Cleaning device to clean a roll, e.g., a concrete or granite roll, in a paper machine. The cleaning device may include a spray unit that may include a high-pressure spray device having an operational pressure of at least approximately 10 bar to spray a su... | 10/12/1999 |
| 5944956 | Surface-cleaning doctor for use in a papermaking operation and associated method A doctor system (20) and an associated method for cleaning the moving surface (30) of a papermachine component (22) which is begrimed or wetted by a paper web (28) moved around the surface utilizes an air nozzle (54) supportable in a stationary condition ... | 08/31/1999 |
| 5851358 | Paper making machine with an integral suction chamber and air/water separator for a doctor element The invention is directed to a paper making machine having a wet end associated with a wet fiber web. A forming fabric has a plurality of voids therein and carries liquid from the fiber web. A roll disposed at the wet end of the paper making machine carri... | 12/22/1998 |
| 5660688 | Method and device for washing a wire of a paper or board machine A device and method for washing a wire in a paper or board machine including a wash-nozzle pipe arranged at one side of the wire for spraying a jet of a washing liquid such as water at the wire. At an opposite side of the wire, a suction device applies su... | 08/26/1997 |
| 5573644 | Apparatus for guiding a wire An apparatus for guiding a wire including a device for producing a washing jet and a device for removing washing mist generated from the washing jet which has a suction box. The suction box is located on an opposite side of the wire from the device for pr... | 11/12/1996 |
| 5417809 | Water reuse system incorporating vacuum pump sealing water in a zero discharge process A papermaking water system utilizing vacuum pump sealing water and having a zero sealing water discharge. A group of water seal vacuum pumps are used in a papermaking machine to generate subatmospheric pressure in suction equipment and thereby extract wat... | 05/23/1995 |
| 5230776 | Paper machine for manufacturing a soft crepe paper web A paper machine for manufacturing a soft crepe paper web, comprising a wet end (1) having a forming wire (4) for forming and carrying a paper web (7), and a drying section (2) provided with a drying cylinder (12), said paper machine having a first operati... | 07/27/1993 |
| 5147508 | Suction box covers for cleaning papermaking machine felts A suction box for use in drying a felt web in a papermaking machine has one or more cover members in contact with a surface of the felt web. The surface of at least one of these cover elements which normally contacts the felt web has a leading portion whi... | 09/15/1992 |
| 5135615 | Device for measuring the condition of a felt and for reconditioning it Device for measuring the condition of a felt (4) in a paper machine and for reconditioning it, comprising a measuring head (7) provided with a suction chamber (7b) and a measuring surface (7a) to be positioned against the surface of the felt (4) and provi... | 08/04/1992 |
| 5120401 | Mist removal device in a paper machine The invention is related to a device in a paper machine for collecting the mist that is produced in the spraying of high-pressure water employed in the washing of a wire. The device includes an inlet duct extending across the wire width. The central axis ... | 06/09/1992 |
| 5092961 | Apparatus for cleaning a porous cover An apparatus is disclosed for cleaning a porous cover of a press roll of a papermaking machine. The apparatus includes a hydrostatic bearing disposed adjacent to the porous cover, the bearing defining a concave surface for cooperating with porous cover. T... | 03/03/1992 |
| 4975150 | Method for preventing plugging of suction roll of paper machine and anti-plugging agent therefor A method for preventing plugging of a suction roll of a paper machine is described, which includes showering sealing water having incorporated therein from 10 to 500 ppm by weight, based on the sealing water, of malic acid on an inner wall of a shell of t... | 12/04/1990 |
| 4912948 | Vacuum guide used in flexible sheet material treatment Treating flexible sheet material, including paper, using vacuum guides adjacent to short-dwell applicators intimately contacting the sheet, provides improved application of fluid treating composition, particularly at high speeds.... | 04/03/1990 |
| 4880500 | Stationary ceramic couch device with water spray cleaning nozzles A papermaking machine is modified by replacing a conventional rotatable couch roll by a stationary couch device that still serves the essential functions of the roll, namely dewatering of the furnish carried by the web and modification of the direction of... | 11/14/1989 |
| 4811659 | Roller press for liquid/solid separation A roller press comprised of two opposed porous tubular sleeves which are forced together to form a nip by inner driven rollers. Liquid from a mixture fed through the nip is forced into the porous rollers and is transported by them to another circumferenti... | 03/14/1989 |
| 4547266 | Apparatus for providing selectively differentiated vacuum across a papermaking machine width Mechanism for automatically controlling and maintaining a selectively differentiated vacuum pressure in a vacuum head accommodating to the transverse width of a moving web passing relative thereto involving means for supplying air to the vacuum head at sp... | 10/15/1985 |
| 4447924 | Moisture control system for controlling the amount of chemical added to a fabric A moisture control system is provided for controlling the amount of chemical added to a fabric. The system includes a suction pipe having a slot therein and a fabric positioned to pass over the slot. A vacuum source is connected through conduit means to t... | 05/15/1984 |
| 4308096 | Extended nip press An extended press mechanism for removing liquid from a traveling fibrous web including a press nip formed between first and second members with one of the members being a traveling flexible impervious belt and force means engaging the inner surface of the... | 12/29/1981 |
| 4308077 | Constant flow felt dewatering system A constant flow felt dewatering system including first and second suction pipes with a slot in each pipe. A felt is positioned to pass over the slots of the first and second pipes. A centrifugal exhauster is connected by conduits to the first and second s... | 12/29/1981 |
| 4191611 | Apparatus for ultrasonically cleaning paper making felt An apparatus for cleaning an endless paper making felt continuously during the paper making process, and wherein the moving felt is passed through a cleaning bath, and ultrasonic vibrations are applied substantially uniformly across the entire width of th... | 03/04/1980 |
| 4149930 | Method and apparatus for making asbestos-cement boards An improvement in the method and apparatus for fabricating asbestos-cement boards, wherein a felt band coated with fiber fleece is fed to a pair of press rollers in nip relationship and wherein the coating of the felt band with fiber fleece is effected by... | 04/17/1979 |
| 4011131 | Lubricated suction box cover A suction box cover for a Fourdrinier papermaking machine includes a leading portion having a top surface which supports a travelling Fourdinier fabric. The leading portion has a channel across its length which includes a lower manifold region and an upwa... | 03/08/1977 |
