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Class 100/162B - Roll crown control


Subclass of Class 100 - Presses
No. of patents: 215
Last issue date: 04/15/2008


1            
NumberTitleIssue Date
7357072Calender
A calender comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting on the rollers in the horizont...
04/15/2008
7308738Releasable fastener systems and processes
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
12/18/2007
7300549Method for controlling the operation of a paper, board or tissue production line
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...
11/27/2007
7169101Deflection compensation roll
Deflection compensation roll and process for reducing vibrations in deflection roll. The roll includes antifriction bearings, a roll jacket supported in an area of its axial ends on the antifriction bearings, and hydraulic supports arranged to hydraulically support ...
01/30/2007
7146690Releasable fastener system
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
12/12/2006
7140081Releasable fastener system
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements exte...
11/28/2006
7096779Calender arrangement
A vertical calender arrangement comprises a controllable-deflection top roll, a controllable-deflection bottom roll and intermediate rolls arranged between top and bottom rolls. The top roll and the bottom roll are each provided with a power drive. ...
08/29/2006
7040225Method for reducing vibrations in rotating components
Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba...
05/09/2006
7032282Releasable fastener system
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
04/25/2006
7022056Roll in a paper or board machine
A method for fitting a tubular roll shell (2) of a roll (1) in a paper or board machine. In the method, the roll shell (2) is supported on a stationary roll shaft (3) by means of hydrostatic slide bearing elements (4a, 4
04/04/2006
7020938Magnetorheological nanocomposite elastomer for releasable attachment applications
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements exte...
04/04/2006
7017483Method and device for reducing vibrations in rotating components
Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba...
03/28/2006
7017477Method and arrangement for computing and regulating the distribution of a linear load in a multi-nip calender and a multi-nip calender
A method and arrangement for computing and regulating distribution of linear load in a multi-nip calender. A material web is passed through the nips in a set of rolls including a variable-crown upper roll, a variable-crown lower roll and intermediate rolls positione...
03/28/2006
7013538Electroactive polymer releasable fastening system and method of use
A releasable fastening system for retaining two surfaces at each other or disengaging the two surfaces from each other comprises a first electrode disposed at a first surface, a second electrode disposed at a second surface, and a polymer film disposed between the f...
03/21/2006
7013536Releasable fastener systems and processes
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
03/21/2006
6973701Releasable fastening system based on ionic polymer metal composites and method of use
A releasable fastening system comprises a knob portion comprising a knob element, a cavity portion comprising a cavity configured to receive the knob element, and an ionic polymer metal composite actuator disposed at the knob element. The ionic polymer metal composi...
12/13/2005
6971308Printing device for printing machines of various kind
Printing device for printing machines of various kind, which is made in such a way that to permit to print paper pages and sheets of any size, with a number of copies larger than those attainable with the current printing machines and with high printing accuracies. ...
12/06/2005
6944920Electrostatically releasable fastening system and method of use
A releasable fastening system comprises a loop portion comprising a loop material, a hook portion comprising a plurality of hook elements, and an actuation device disposed in electrical communication with the loop portion and the hook portion. The actuation device i...
09/20/2005
6758136Method and apparatus for calendering paper
The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by the flexible...
07/06/2004
6697699Method and device for influencing relevant quality parameters of a rolling strip
Method for influencing relevant quality parameters of a rolling strip, particularly the profile or flatness of the rolling strip, in a roll stand with rolls, by adjusting the crownings of the rolls, i.e., the surface geometry of the rolls in the longitudi...
02/24/2004
6666135Calender
The invention concerns a calender which comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forc...
12/23/2003
6544156Elastomer roll for papermaking machine
A method and apparatus for obtaining a desired nip pressure distribution profile in the cross direction of a paper web. The paper web passes through a nip, the latter defined by at least one elastomer covered roll, the covered roll having polarizable part...
04/08/2003
6523465Process for presetting a calender and calender for implementing the process
A process for presetting a calender for a material web and a calender. The calender includes a roll stack having at least a first nip and a second nip arranged to define a stack plane and comprising a sag compensation lower roll having a rotationally secu...
02/25/2003
6497177Calender arrangement and a deflection controlled roll and method of operating them
A calender arrangement includes end rolls that are in the form of deflection controlled rolls having an internal stroke. One of the end rolls comprises at least one stop element that is in the form of a hydraulic positioned hydrostatic element which, toge...
12/24/2002
6482141Flexible end supporting arrangement for direct drive adjustable spreader rolls
An arrangement in connection with a spreader roll drive where the driving motor is directly connected to the one end of the spreader roll. Bearings support the end of the stationary axle within the drive shaft. The drive shaft is supported by bearings wit...
11/19/2002
6468461Process for forming sheet products
In a process and apparatus for producing long plastic sheets by pressing molten plastic materials between the forming roller and the forming drum unit, the forming drum unit including a thin cylindrical sleeve supported from inside by a drum support unit ...
10/22/2002
6444093Method in a treatment process of a paper web and treatment device for a paper web
In the treatment process of a paper web, the paper web travels via a surface journalled rotatable, such as a peripheral surface of a cylinder or a roll, and the treatment process is controlled with an adjustment and control unit. The bearing arrangement u...
09/03/2002
6419794Method and apparatus for damping contact oscillations of rotating rolls
In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls are held endways in bearings. At least two rolls form a nip with each other. The damping is carried out actively and the ac...
07/16/2002
6344019Cylinder device for processing continuous material strips
A cylinder device includes a deflection-controllable cylinder having a rotating hollow cylinder which is longitudinally traversed by a crosshead. Crosshead sags when subjected to a load. The ends of the crosshead, which protrude from the hollow cylinder, ...
02/05/2002
6336398Calender for webs of paper or a similar material
The present invention relates to a calendar for treating a material web. In an exemplary embodiment, first and second roll stacks have first and second deflection adjustment rolls on an end thereof, respectively. Each of the first and second deflection ad...
01/08/2002
6305280Calender for material webs and method for calendering material webs
Calender for a material web, and a method for calendaring the material web. The calender includes a frame upon which at least one roll stack is mounted. The roll stack includes a plurality of rolls, in which the end rolls are designed as sag compensation ...
10/23/2001
6257133Method and apparatus for controlling cross directional nip dynamics
A method and apparatus for obtaining a desired nip pressure distribution profile in the cross direction of a paper web. The paper web passes through a nip, the latter defined by at least one elastomer covered roll, the covered roll having polarizable part...
07/10/2001
6247398Calender arrangement for manufacturing a paper web
A calender for manufacturing a material web. A frame is supported at the top and bottom. At least five rolls are mounted on the frame such that axes of the rolls lie in a substantially common plane extending substantially parallel to the frame. The common...
06/19/2001
6227105Calender for a web, in particular a paper web, process for forming the calender, and process for treating the web with the calender
Calender for a web, process of forming the calender, and process of treating a web in the calender. The calender includes rolls having rotational axes and a roll stack composed of the rolls. The rolls of the roll stack are arranged such that the rotationa...
05/08/2001
6164198Apparatus for calendering paper
The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by m...
12/26/2000
6158333Method and apparatus for calendering paper
The invention relates to a method and an apparatus calendering a fiber web, wherein the fiber web passes through an extended and heated nip, said nip being formed on one side by a cylindrical heated roll and on the other side by a flexible tubular jacket ...
12/12/2000
6156158Method and apparatus for damping contact oscillations of rotating rolls
In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls being held endways in bearings and at least two rolls forming with each other a nip, the damping is carried out actively, t...
12/05/2000
6145127Calender and method of operating same
Calender having a frame having a roll stack therein and a lower deflection control roll as the lowermost roll of the roll stack. The lower deflection roll has a sleeve supported on a bracket having opposed ends. The lower deflection control roll further h...
11/14/2000
6129011Calender for treating both sides of a web
A paper calender has a stack of rolls arranged one above the other. They form an upper stack and a lower stack with a common center roll. Additional center rolls are carried on levers that are capable of pivoting about axes fixed with respect to the frame...
10/10/2000
6095039Apparatus for treating a product web
The calender disclosed comprises a vertical stack of linked rolls, which are driven individually by controlled electric motors. The control acts on the distribution of the supplied power to the individual rolls in such a way that the forces which act on t...
08/01/2000
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