| Patent Number |
Title Of Patent |
Date Issued |
| 6942760 |
Arrangement in the wet end of a paper machine |
September 13, 2005 |
| At the end of the twin wire zone of a paper machine former, a suction box (17) inside the upper wire loop (11) has a curved lid (17') opposite a roll (18) within the lower wire loop (10). The lid is curved in a run situation so the tension of the upper wire (11) reduces the normal force |
| 6598315 |
Nozzle arrangement in airborne web-drying and method for improving heat transfer in airborne web |
July 29, 2003 |
| A nozzle arrangement in an airborne web-drying apparatus for drying a coated paper web (10) or the like. The nozzle arrangement comprises at least one overpressure nozzle (14), which is arranged to blow drying air both in the web's travel direction and against the web's travel direction. |
| 6533900 |
Device in a paper machine for transfer of the web from the former section to the press section |
March 18, 2003 |
| A method in a paper machine for transferring a paper web from a wet wire in a former section to a pick-up fabric or an equivalent transfer fabric of a press section, including the steps of forming a pick-up point on the wet wire and separating an edge strip from at least one edge of the |
| 6511015 |
Method and apparatus for stabilizing the running of a web in a paper machine or a like |
January 28, 2003 |
| A method and a device for stabilizing the web run in a paper machine or the like having a blow suction module (12) mounted above and/or below the web. The blow suction module comprises a blow nozzle unit (14) extending across the web, through which gas, such as air or combustion gas, is |
| 6372094 |
Pulp drying line and method for drying pulp |
April 16, 2002 |
| A pulp drying line which comprises a pulp press for pre-drying the pulp and a defibrator for shredding the pre-dried pulp into a loose pulp. The drying line further comprises a web forming section and a pulp dryer section. The loose pulp coming from the defibrator is spread in the web |
| 6311410 |
Method and device for drying a coated web |
November 6, 2001 |
| A method and device for drying a coated web. The coated web is first conveyed through a web heating unit (10, 32, 40), in which the temperature of the coated web is raised, typically to drying temperature, by directing jets of heating air at the coated web, the humidity a.sub.1 of the sa |
| 6289607 |
Flotation dryer unit and method of use |
September 18, 2001 |
| A method and flotation dryer unit effects drying of a web such as a coated paper web. The flotation dryer unit advantageously includes several nozzle boxes extending across the web for feeding drying air toward the web to be dried, a distribution chamber for drying air for leading the dr |
| 6214168 |
Method and device in a paper machine for transfer of the web from the former section to the pres |
April 10, 2001 |
| A method in a paper machine for transferring a paper web from a wet wire in a former section to a pick-up fabric or an equivalent transfer fabric of a press section, including the steps of forming a pick-up point on the wet wire and separating an edge strip from at least one edge of the |
| 6154981 |
Method and apparatus for improving the drying capacity of a hood covering a yankee cylinder |
December 5, 2000 |
| A method and an apparatus for improving the drying capacity of a hood covering a Yankee cylinder (10), when drying a web with a Yankee cylinder while conveying the web over the cylinder by blowing hot air jets against the web at the region of a first hood (12), said hot air jets having a |
| 6070655 |
Heat exchanger |
June 6, 2000 |
| A heat exchanger, for use in particular in connection with the process outlets at paper, pulp and board mills, including substantially parallel tubes or equivalent arranged in a duct. An air flow that delivers heat passes through the tubes and an air flow that receives heat passes throug |
| 5961784 |
Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower |
October 5, 1999 |
| A method for reducing the consumption of fresh water and energy in a paper mill in which fresh water is passed into the paper mill for various needs, and a cooling tower is utilized for cooling water heated in the papermaking process. All fresh waters or a substantial proportion of the |
| 5771602 |
Method and device for drying a coating on a paper web or equivalent |
June 30, 1998 |
| A method and device for drying a coating on a paper web or equivalent in which the direction of running of the paper web is turned, free of contact, by blowings produced by a turning device and the coating on the paper web is dried free of contact by blowings of drying devices placed at |
| 5666740 |
Hood for a wire part and for a press section |
September 16, 1997 |
| A hood for a wire part and/or a press section in a paper/board machine including walls and a ceiling which form a closed hood around the wire part and/or press section, air-conditioning or another air-control system being arranged in connection with the hood. The hood walls have outer an |
| 5653041 |
Drying method and drying module as well as dryer sections that make use of same, in particular f |
August 5, 1997 |
| A method and device for drying a paper web wherein the paper web is supported on a drying wire without long open draws of the web. The paper web is contact-dried by pressing it with the drying wire onto a face of a contact-drying cylinder whose diameter is greater than about 1.5 m on a |
| 5495678 |
Drying module and dryer sections that make use of same, in particular for a high-speed paper mac |
March 5, 1996 |
| A method and device for drying a paper web wherein the paper web is supported on a drying wire without long open draws of the web. The paper web is contact-dried by pressing it with the drying wire onto a face of a contact-drying cylinder whose diameter is greater than about 1.5 m on a |
| 5471766 |
Method in contact-free air-drying of a material web as well as a nozzle-blow-box and a pulp drye |
December 5, 1995 |
| The invention relates to a method for air-drying material webs, in particular material webs of relatively high grammage such as pulp webs. The invention also relates to a nozzle-blow-box and a pulp dryer that make use of the method. Air blowings in a direction substantially perpendicular |
| 5299364 |
Arrangement and method for treatment of webs using nozzles with negative pressure |
April 5, 1994 |
| The invention relates to an arrangement of nozzles with negative pressure intended for the treatment of webs. A nozzle directs a drying and supporting gas flow at the web and which has a box construction, and a nozzle space formed at one side of the nozzle. The nozzle space is provid |
| 5199623 |
Device for supporting, turning and spreading of a web |
April 6, 1993 |
| A device for contact-free supporting, turning, and spreading of a paper web, comprises a face (K) curved in accordance with the turning of the web (W), in connection with which face (K) the web (W) runs supported by air blown in between the face (K) and the web (W). The nozzle members in |
| 5163236 |
Method and apparatus for drying webs |
November 17, 1992 |
| A method for use in web drying apparatus, such as a drying section of a coating or paper machine which includes drying cylinders against the outer mantles of which a web to be dried is pressed in direct contact, and wherein the web is carried from one drying cylinder to the next supporte |
| 4936025 |
Combination infrared and airborne drying of a web |
June 26, 1990 |
| Method and device in a drying of a moving web, in which the web is passed while being supported free of contact through various drying gaps in which the web is dried by infrared radiation and air blowing. The web is passed into an infrared treatment gap in which infrared radiation is app |
| 4899463 |
Method and device in a cylinder dryer of a paper machine |
February 13, 1990 |
| Method and device in a cylinder dryer of a paper machine, in which a paper web is guided in connection with upper cylinders by using an upper wire and in connection with lower cylinders by using a lower wire. The wires are guided by faces of the respective drying cylinders and by guide r |
| 4576525 |
Method and equipment for performing rock bolting |
March 18, 1986 |
| A method for performing rock bolting, according to which a cementing agent is fed into a hole drilled into the rock, whereupon a bolt is fitted into the drill hole for supporting the rock. In order to permit use of a rapidly hardening cementing agent and mechanization of the bolting, a |
