| Patent Number |
Title Of Patent |
Date Issued |
| D514265 |
Dryer of a web-like product, such as a paper web |
January 31, 2006 |
|
| D492072 |
Body of a dryer of a web-like product, such as a paper web |
June 22, 2004 |
|
| 7415774 |
Method and arrangement for measuring the position of a circular object |
August 26, 2008 |
| Method and arrangement for measuring the position of the end shields of a paper, pulp, or board reel relative to the grab (1, 2) transporting it, when an end shield is attached to the grab (1, 2). During measurement, a detector (7) is moved along such a curve of a circle that can be assu |
| 7413632 |
Method for calendering a fibrous web and a calender |
August 19, 2008 |
| A calender includes at least two roll stacks which each have at least three rolls, and in each of which the web path of a fibrous web meanders between each roll pair of the stack. In order to produce a selectable fibrous web grade, the web is passed between each roll pair of each sta |
| 7407563 |
Apparatus and method in the treatment of the stock passed to a headbox of a paper machine or equ |
August 5, 2008 |
| An apparatus in the treatment of stock passed to a headbox of a paper machine or equivalent includes at least two stock chests (10a.sub.1, 10a.sub.2). Stock (M.sub.1) from a first stock chest (10a.sub.1) is passed along a line (a.sub.1, a.sub.2) to a hydrococyclone plant (20) in the |
| 7407562 |
Method, system and calendar for controlling the moisture profile and/or moisture gradient of a p |
August 5, 2008 |
| The moisture profile and/or moisture gradient of a paper web of at least SC quality paper is controlled in a paper machine comprising a calender (1) which has at least two roll stacks (21, 22; 31, 32), one stack has at least three rolls and another has at least five rolls. The web is |
| 7390557 |
Method for coating a web of paper or paperboard and a coated paper grade |
June 24, 2008 |
| A method for manufacturing a web of paper and paperboard, in which method a spray-coating technique is used for applying a web treatment substance to at least one surface of a moving web. The qualities of the web treatment substance are selected such that at least the droplet size and |
| 7390379 |
Method and apparatus for determining the lateral position of a web or fabric edge in a former |
June 24, 2008 |
| The lateral position of a web or fabric edge 11 in a paper machine is determined using an ultrasonic sensor. The ultrasonic sensor has a detector head 42, with an air channel system which opens to the vicinity of the head for forming an air knife which prevents accumulation of dirt o |
| 7389958 |
Core locking device |
June 24, 2008 |
| A core locking device has members (25) for locking the device (17) to a winding core of a roll to be wound on a two-drum winder, advantageously to a core. The device (17) is placed on a slide arranged in connection with the two-drum winder, and moves, as winding progresses, with the |
| 7387820 |
Equipment and method for changing a blade in a coating device |
June 17, 2008 |
| Equipment for changing a blade (43) in a coating device (51) changes several blades (43) arranged in a band (43). The equipment includes reels (11, 40) connected to the ends of the blade holder (45), for holding the reeled unused and used band (43); transfer devices (13, 20) for moving |
| 7387710 |
Shoe press |
June 17, 2008 |
| A shoe press 1 for applying pressure to a fibrous web W has a concave press shoe 2 adapted to be juxtaposed with a backing member 6. A plurality of articulated hydraulic actuators 5 are spaced apart in the cross-machine direction along the press shoe 2 to press the shoe toward a back |
| 7387064 |
Method and apparatus for producing calendered paper |
June 17, 2008 |
| A paper web moistened in a paper machine and reeled on a machine reel is calendered in a multinip calender arranged apart from the paper machine, whose roll assembly is formed of a first set of rolls and a second set of rolls in the travel direction of the paper web. At least one surface |
| 7384509 |
Method for controlling the moisture profile of a paper web |
June 10, 2008 |
| A method for controlling the moisture profile of a paper web or board web processed in a heated multi-roll calendar to optimize the qualities of the paper or board, especially gloss. The method is characterized in that the moisture measurement is carried out both on either surface of the |
| 7384508 |
Apparatus and method for draining water from a cellulose web |
June 10, 2008 |
| An apparatus and a method are provided for draining water from a cellulose web which is formed in a wedge-shaped space defined by two wires, the wires being supported on chamber assemblies including at one time at least one water receiving chamber, the water flowing therein through the |
| 7381295 |
Pulp fractionation using centrifugal cleaners and power screens with multi-layer headbox and dea |
June 3, 2008 |
| Virgin stock is conducted to a paper or board machine and further to a centrifugal cleaner installation (12) into its first centrifugal cleaner step (12a.sub.1). From the first centrifugal cleaner step (12a.sub.1) the accept is conducted into a multi-layer headbox (10) to form a layer of |
| 7377999 |
Arrangement in the on-line finishing of the paper machine |
May 27, 2008 |
| An arrangement in the on-line finishing of a paper machine, which includes at least one finishing stage (12, 13) for the paper web produced, has cutting equipment (16) for forming the tail as well as tail threading equipment (15) for carrying the tail through the finishing stage (12, |
| 7377994 |
Method and device for threading a web in the reeling of a paper or board web |
May 27, 2008 |
| A web is threaded in the reeling of a paper or board web, by passing a web tail strip (W) into a reeling nip between a reeling drum (10) and a reel spool (12), on which a web roll is formed. The tail strip (W) is passed into the reeling nip by a suction zone (20) which extends substantia |
| 7364643 |
Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former |
April 29, 2008 |
| Fibrous stock is supplied by a paper or board machine headbox (1) between looped forming wires (11, 12). Water is removed in a first dewatering zone (Z1) formed with a fixed forming shoe (3) having a curved surface against which a wire (12) is supported while the opposite wire (11) is |
| 7363730 |
Devices and method for removing broken pulp web from a pulp dryer and maintenance platform for a |
April 29, 2008 |
| A device (21) and method for removing a broken pulp web (27) from a pulp dryer and a maintenance platform (23) comprising such a device. The device (21) comprises an actuator (31), a pulling means (33) functionally coupled to the actuator and adapted to be driven by the actuator, and a |
| 7351309 |
Roll in a paper or board machine and a dryer group in a paper or board machine |
April 1, 2008 |
| A roll in a paper or board machine has a roll frame or center shaft (15) with bearings mounted at its ends and a groove-like surface structure (10). There is a contact between the surface structure and the center shaft so that an essentially closed structure is formed. The roll produ |
| 7340998 |
Arrangement for closing roll nips |
March 11, 2008 |
| A multi-roll calender (1) has one or several sets of rolls (2) attached to a frame (7) so that each set of rolls has at least three rolls. At least the first roll (3; 31) and the last roll (3; 32) have casings which can be moved toward the intermediate rolls (4). The first roll (3; 31) a |
| 7335280 |
Method and equipment in the measurement of the flatness of the flow surface of the headbox of a |
February 26, 2008 |
| A method in the measurement of the flatness of the flow surface of a headbox of a paper machine is disclosed. The flatness is determined by placing a measuring tool on the flat surface formed by the flow surface and measuring the position of the measuring tool at each point. A measur |
| 7326319 |
Method of pre-calendering a board web |
February 5, 2008 |
| A method for pre-calendering a board web is provided and comprises passing the board web in a pre-calendering process through at least one hard nip, formed by a metal roll and a counter roll, and through at least one long nip, formed by a thermo roll and a long-nip roll or a long-nip bel |
| 7325490 |
Relief cylinder structure of a multinip calender |
February 5, 2008 |
| A relief cylinder structure for guiding a roll in a multinip calender has a frame and an arm that is arranged to move linearly in relation to the frame. A quick-opening cylinder is placed inside the arm. In a fault situation, the relief cylinder causes the cylinder rolls to move rapidly |
| 7322539 |
Refining surface for a refiner for defibering material containing lignocellulose |
January 29, 2008 |
| The invention relates to a refining surface in a refiner for defibering material containing lignocellulose, which refiner has two coaxially rotating refining surfaces. The material being defibered is fed between the refining surfaces that both have grooves and bars. According to the |
| 7320744 |
Moistening arrangement of multiple-nip calender |
January 22, 2008 |
| A multiple-nip calender has a set of rolls (2) with roll nips (N) between the rolls. A moistening arrangement has a roll means (3) for moistening the fibre web comprising a damping unit (33) and rolls (32) guiding the fibre web (W). The roll means is located in a pocket (7) adjacent to t |
| 7318883 |
Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilu |
January 15, 2008 |
| The invention concerns an equipment and a method in a paper or board machine for mixing fresh stock (M) with water (V) used for dilution of the fresh stock. At the point of mixing (K) of the dilution water (V) and the fresh stock (M) passed from the pipe (13), there is at least one such |
| 7318880 |
Method for defibring recycled fiber material in a drum pulper, and a drum pulper |
January 15, 2008 |
| The invention relates to a method for defibering recycled fiber material in a drum pulper provided with a substantially horizontal drum. Recycled fiber material and water are fed to the drum pulper and the drum of the drum pulper is simultaneously rotated. When the drum rotates, the |
| 7311804 |
Universal doctor blade with indicia |
December 25, 2007 |
| Doctor blades are provided for multiple positions within a paper or board making machine. A single doctor blade of a standard length or a reel of doctor blade material has markings which permit a variety of doctor blade sizes to be readily cut. If a standard length doctor blade is used, |
| 7311039 |
Method and arrangement for preventing vibrations in a multi-nip calender or calender array |
December 25, 2007 |
| Vibration is prevented in a multi-nip calender (1) or an array of multi-nip calendars. Each calender has a lower roll (3; 40), an upper roll (3; 30) and two or more intermediate rolls. A fiber web is conveyed through the closed roll nips of the calenders. The intermediate rolls (3) h |
| 7303634 |
Method and apparatus for feeding a treating agent onto a moving surface |
December 4, 2007 |
| The apparatus has a feed apparatus (10) and an evening-out apparatus (100) placed underneath the feed apparatus. The feed apparatus (10) has a feed chamber (12) with an inlet opening (13a), an outlet opening (13b), and a nozzle plate (18) with holes (19) and communicating with the outlet |
| 7300553 |
Arrangement for a wire section of a paper or board machine |
November 27, 2007 |
| A web is formed between two wire loops (13, 14), in a wire section of a paper or board machine, in connection with which dewatering elements (12, 17, 15, 28) are placed and in which water is drained from a stock suspension from between the two wires (13, 14). In the region of a twin- |
| 7300549 |
Method for controlling the operation of a paper, board or tissue production line |
November 27, 2007 |
| The invention relates to a method for controlling the operation of a paper, board or tissue production line (11, 12, 13, 14, 17, 18). A magneto-rheological or an electrolrheological fluid, whose flow characteristics are changed in a controlled way, is used in the method. The fluid is |
| 7294236 |
Arrangement for controlling the web in a press section of a paper or board machine |
November 13, 2007 |
| An arrangement is disclosed for controlling the web in a press section of a paper of board machine wherein the press section includes a press nip and two fabrics arranged to travel through it. In addition, the press section includes a suction roll with a suction apparatus fitted after th |
| 7293730 |
Knife fixing method |
November 13, 2007 |
| The present invention concerns a method for fixing a knife in wood chipper apparatuses over the whole knife length between two steady surfaces. The fixing force is developed by means of a roller chain located between two counter surfaces and reversing its direction at each of its couplin |
| 7293572 |
Cleaning equipment for cleaning a moving surface particularly in a paper machine |
November 13, 2007 |
| Cleaning equipment for cleaning a moving surface particularly in a paper machine includes a washing head with a chamber in it opening onto the surface to be cleaned and nozzle elements arranged inside the chamber. The cleaning equipment also includes vacuum means and removal means. The |
| 7291248 |
Dewatering member with a composite body for a paper or board machine and method for manufacturin |
November 6, 2007 |
| A dewatering member for a paper or board machine has a composite body (13) and a hard surface layer (12). The composite body (13) is manufactured in a pultrusion process. An adhesion layer (11) is formed on desired outer surfaces of the composite body (13) such that reinforcements passed |
| 7288291 |
Method for forming a film, by using electrostatic forces |
October 30, 2007 |
| A film is formed on a planar surface by applying a granular layer on the planar surface by using electrostatic forces, and then finishing the granular layer to form the film. A converting line may be rebuilt to have devices employing this method. A multilayer sheet-like product comprisin |
| 7282114 |
Method for processing pulp |
October 16, 2007 |
| The object of the invention is a method and a device for dispersing pulp, especially pulp containing waste paper, in which method ground pulp mass is fed between the blade surfaces (4) of a dispersing device that are brought in a rotating movement in relation to one another. The inventio |
| 7264693 |
Apparatus for leading a web threading tail over an empty space |
September 4, 2007 |
| An apparatus for leading a web threading tail over an empty space formed between two surfaces, between which the apparatus (10) is arranged. The apparatus (10) includes a belt loop (28) permeable by air, which is supported by turnover rolls (29, 30). Within the belt loop (28) at least |
| 7264692 |
Method for monitoring the operation of a doctor assembly in a paper machine and a doctor assembl |
September 4, 2007 |
| The operation of a doctor assembly (16) in a paper machine is monitored. In case of a malfunction, the paper machine's (10) control devices (14-14', 15) are used to carry out the necessary measures for eliminating the malfunction and carrying out repair and/or protective measures. In |
| 7255000 |
Method and an arrangement for controlling position and/or force of an elongated rolling device |
August 14, 2007 |
| In paper and board machines the position of a rolling device relative to another rolling device and/or the force exerted by the rolling device on the other rolling device or any variable acting on these is measured, and the value of the measured variable is compared with the set value of |
| 7249424 |
Method and device for controlling the moisture or coating quantity profile in a paper web |
July 31, 2007 |
| The narrow-scale moisture profile of a paper web is controlled by profiling nozzles (11) of a profiling device (10) which cover part of the width of the web and desired variations of the moisture profile are corrected by the profiling nozzles (11). Coating quantity profile of a paper |
| 7241364 |
Papermaking machine for forming tissue employing an air press |
July 10, 2007 |
| A web of tissue is formed in a twin wire former, followed by an air press for water removal in the pressing section, passing onto a Yankee dryer. A headbox injects stock between upper and lower dryer fabrics brought together on a breast roll. The fabrics moves over vacuum boxes, and the |
| 7237743 |
Sheet windup starter |
July 3, 2007 |
| A tail turn-up assembly has a frame positioned upstream of a reel spool. A carriage is pivotally mounted to the frame by a four bar linkage. The carriage is pivotable, from a retracted position to an extended position. When the carriage is engaged with the reel spool, a pair of curved tr |
| 7235157 |
Method for controlling one or more surface quality variables of a fiber web in a shoe calender |
June 26, 2007 |
| The invention relates to a method for controlling a surface quality variable (300) in one or more fiber webs (3) in a shoe calender (1) comprising one or more calender nips. In each calender nip of the shoe calender, the overall loading pressure of the shoe element (8) and the loadin |
| 7234909 |
Apparatus for storage and unloading of granular material |
June 26, 2007 |
| The object of the invention is an apparatus for storage of wood chips in a curved-top stockpile the apparatus consisting of a central tower, which supports a conveyor for loading the chips and a beam-like turning pile composer, and a unloading beam supported on ground level on the lower |
| 7234244 |
Method and apparatus for measuring the position of an end head of a roll |
June 26, 2007 |
| A method and apparatus for determining the position, relative to the grab (1, 2) transporting them, of the end heads used in packing paper, cellulose, and board rolls, when the end head is attached to the grab (1, 2). When measuring, a detector (7) is transported along such a circular |
| 7217341 |
Treatment equipment, including a beam, for a paper machine |
May 15, 2007 |
| The invention relates to treatment equipment, including a beam, for a paper machine. The beam (12) is equipped with a shaft (15), which has a bearing assembly (16) adapted to allow the beam (12) to pivot in relation to the bearing assembly (16) as well as move in the axial direction. The |
| 7195439 |
Tightening member |
March 27, 2007 |
| A hydraulic nut having a first part connected around the first end of a fixing member the first part having an annular recess which opens to receive a second part forming an annular member which fits within the annular recess, wherein a pressurized medium chamber is defined between t |
