U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 162/360.3 - Having three or more coacting rolls (e.g., compact press, etc.)


Subclass of Class 162 - Paper making and fiber liberation
Definition: Apparatus having three or more coacting rolls wherein at
No. of patents: 137
Last issue date: 01/29/2008


1        
NumberTitleIssue Date
7323087Anti-rewet felt for use in a papermaking machine
An anti-rewet fabric is used for carrying a fiber web through an air press. The ant-rewet fabric includes at least one air distribution fabric layer, one air distribution fabric layer being configured for contacting the fiber web, and a perforated film layer and/or ...
01/29/2008
7291249Apparatus for the manufacture of a structured fiber web
An apparatus for the manufacture of a structured fiber web including an imprinting fabric, a first pressure field device, a second pressure field device and a drying cylinder. The fiber web is formed and carried on the imprinting fabric with an initial dry content o...
11/06/2007
7185537Nip and loading analysis system
A nip characterization system which has as inputs the pressure applied to the nip by the hydraulic loading devices, and loads applied at the end bearings and/or the loads applied to the roll support beam, and in addition directly measures nip load, has more than suf...
03/06/2007
7134388Calender for a sheet of paper
A calender for a sheet of paper comprising a metal roll which is rotated by a first driving unit. The calender further comprises a rotatable cylindrical jacket, a pressurizing shoe, and a plurality of support members. The cylindrical jacket is disposed opposite the ...
11/14/2006
7060161Method for restraining deformation of nip roll
There is provided a method for restraining deformation of a nip roll, in which polygonal deformation of nip rolls that are in contact with each other is restrained, so that vibration produced by the deformation is decreased. The diameter ratio between the fir...
06/13/2006
6998022Paper machine and press section thereof
A soft crepe paper machine comprises a wet section with a press section having a press defined by first and second press elements forming a press nip through which a press felt runs with a paper web. A suction roll is arranged in the loop of the press felt before th...
02/14/2006
6994771Method and apparatus for handling a paper or board web
A method for treating a web of paper or board with a wetting substance or calendering the web prior to the cylinder dryer section of a paper- or boardmaking machine while the solids content of the web is still very low, typically in the range of 10–60%, wherein th...
02/07/2006
6942761Press device and method of using the same
Press device and method of using the same for treating a fibrous material web that includes a shoe press unit that includes a flexible press belt that revolves around a non-rotating carrier, a counter roll that includes a deflection compensation roll with a roll jac...
09/13/2005
6905575Arrangement for the web threading of a multi-roll calender
In a paper/board or finishing/converting machine, a calender (1) comprises a number of rolls (2, 3) formed into a roll stack, and a number of lift-out rolls (4), which are arranged in such a way that the web (W) being treated travels from one ca...
06/14/2005
6875310Roll configuration for an air press of a papermaking machine
An air press for use in a paper machine removes liquid from a fiber web. The air press includes a plurality of rolls, with each roll having a peripheral surface. The plurality of rolls include at least one pair of adjacent rolls defining a nip therebetween. Each rol...
04/05/2005
6827009Multiple-nip calender and calendering arrangement
A supercalender for calendering a paper web and a calendering arrangement for producing matte-quality paper web has a multiple-nip calender in which at least one of the calendering nips of the multiple-nip calender is an extended nip (N9) formed between a...
12/07/2004
6708423Device for dewatering a fibrous material web
Device and process for dewatering a fibrous material web by expelling water via gas pressure. The dewatering device includes at least four rolls arranged to radially limit at least one pressure chamber and sealing units arranged to axially limit the at least one pre...
03/23/2004
6692008Sealing arrangement
A sealing arrangement for closing off an end of a chamber formed between a plurality of rollers of a pressing apparatus, comprises a seal member made of a hard seal material such as carbon fiber material. The sealing arrangement is preferably a self-loade...
02/17/2004
6589390Press section and process for guiding a fiber material web through the press section
Press section of a machine for producing a fiber material, web and process for guiding a fiber material web through the press section. The press section includes at least two double-felted presses arranged in series in a travel direction of the fiber mate...
07/08/2003
6589393Press arrangement and press roll for such a press arrangement
A press arrangement for treating a fibrous web, especially a paper or board web, comprises at least two press rolls to form at least one press nip. At least one press roll is mounted on at least one roll end by means of a floating bearing, whose bearing r...
07/08/2003
6589394Controlled-force end seal arrangement for an air press of a papermaking machine
An air press for pressing a fiber web includes a plurality of rolls and a pair of end seal arrangements. Of the plurality of rolls, each pair of adjacent rolls forms a nip therebetween. Further, each roll has a pair of roll ends, the plurality of rolls to...
07/08/2003
6562198Cross-directional interlocking of rolls in an air press of a papermaking machine
An air press for pressing a paper web is composed of a plurality of rolls including at least a first roll and a second roll. The first roll and the second roll are positioned adjacent one another and form a first nip therebetween. Further, the first roll ...
05/13/2003
6533900Device in a paper machine for transfer of the web from the former section to the press section
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 str...
03/18/2003
6416631Pressing apparatus having semipermeable membrane
An apparatus for processing a continuous web having a first side and a second side includes a plurality of rollers are arranged for cooperative rotation. The plurality of rollers are positioned to define a corresponding plurality of nips. The continuous w...
07/09/2002
6383340Press arrangement and process
Press arrangement and process for treating a fibrous material web that includes two shoe press rolls and a counter-roll, associated with the two shoe press rolls, positioned to form a first and a second press nip with the two shoe press rolls. The first a...
05/07/2002
6381868Device for dewatering a material web
Apparatus and process for dewatering a material web. The apparatus includes at least one pressure chamber formed by at least four substantially parallel rolls, a device arranged to introduce a pressurized gas into the at least one pressure chamber, and th...
05/07/2002
6368466Press section of a paper making machine employing an extended nip press
A press section of a paper making machine for dewatering a paper web (W) formed in a preceding forming section in which dewatering felts (11, 28) are applied to both surfaces of the paper web (W) as the paper web (W) travels in a closed draw from the form...
04/09/2002
6361658Press section
Press section for drainage of a fibrous material web that includes a shoe press roll, a cylindrical counter roll, at least one nip, a first nip of the at least one nip formed by the shoe press roll and the cylindrical counter roll, and at least one press ...
03/26/2002
6334932Press arrangement and process
A press arrangement and process for treatment of a fibrous material web. The press arrangement includes a press shoe unit, a press suction roll, at least one first press nip elongated in a web travel direction, the first press nip being formed between the...
01/01/2002
6332955Press arrangement and method for treating a fibrous web
A press arrangement and method for the treatment of a fibrous material web (10) which includes a lower shoe press roll (20), with which two upper press rolls (22, 24) are associated, with which the shoe press roll (20) forms in each case a press nip (S1 o...
12/25/2001
6325895Paper-making machine with an air press belt run
A device for processing a continuous fiber web includes a membrane, a pressurized enclosure, a tension roll and a guide roll. The pressurized enclosure includes at least a first roll and defines an air press chamber. The first roll partially defines the a...
12/04/2001
6325894Press section and method of using the same
Press section and method of using the same for drainage of a fibrous material web that includes a shoe press roll, a cylindrical counter roll, at least one nip, a first nip of the at least one nip formed by the shoe press roll and the cylindrical counter ...
12/04/2001
6294052Efficient press section for paper manufacturing
Embodiments of a new press section for paper manufacturing are disclosed, each having a combination of rolls which form at least two press nips, with one roll of each combination being common to two press nips. Also, said embodiments further include two c...
09/25/2001
6287427Pressing apparatus having chamber sealing
A roller unit for a pressing apparatus for processing a continuous web includes a roller having a first circular end, a second circular end and a cylindrical middle surface. An elastic sealing sleeve having a plurality of pressurizable fluid cavities is p...
09/11/2001
6248215Calender and method for treating material webs in the calender
Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality ...
06/19/2001
6245198Arrangement of threading in a calender
The invention concerns an arrangement of threading of a paper web (W) in a supercalender, which comprises an upper roll (12), a lower roll (13), and a stack of rolls consisting of intermediate rolls (14 . . . 23) and fitted between said upper and lower ro...
06/12/2001
6228222Press arrangement and method thereof
A method for the treatment of a material web and a press arrangement with a plurality of press gaps. A roll has a flexible press jacket supported from an inside, and forms a respective press gap with each of at least two further driven rolls. The drive po...
05/08/2001
6214168Method and device in a paper machine for transfer of the web from the former section to the press section
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 str...
04/10/2001
6210530Press section and method for pressing with different shoe press lengths
Press section of a machine for producing a fibrous web and process for pressing a fibrous web. The press section may include at least two shoe press units including at least one press shoe and a revolving flexible press belt, a counterpart face, at least ...
04/03/2001
6200424Method and arrangement for calendering a board web
An arrangement and method for calendering a board web including a calender providing a hot and hard calendering nip formed by two calender rolls and through which the board web passes. At least one of the calender rolls is arranged to be heated to such a ...
03/13/2001
6197159Paper making machine and method for web transfer
In a paper making machine for manufacturing a material web (10), such as in particular a paper or cardboard web, the material web (10) to be manufactured is transferred on the surface of a transfer means (24) to a take-off position (30) in the region of w...
03/06/2001
6190506Paper making apparatus having pressurized chamber
Apparatus and method for forming a continuous web on a forming fabric includes providing a pressurized chamber, processing the forming fabric through the pressurized chamber, and distributing a pressurized flow of a slurry having a first composition in th...
02/20/2001
6183603Calendering system using hard and soft nips
This invention relates to calendering systems. Such structures of this type, generally, employ the use of hard and soft nips to provide excellent smoothness without gloss mottle....
02/06/2001
6136154Press section
Press section of a machine for manufacturing a fibrous pulp web. The press section may include a press roll, at least one flexible circulating press belt, at least one press shoe, and at least one extended press nip formed to extend in a web run direction...
10/24/2000
5989393Method and device for guiding a leader of a web in a paper machine
The invention relates to a device and method in a paper machine for guiding a web and in particular in guiding a leader of the web. The device operates in a paper machine in the area between a center roll of the press section and a separate press nip in t...
11/23/1999
1        
 
Sign InRegister
Username  
Password   
forgot password?