Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21D - Treatment of the materials before passing to the paper-making machine › D21D 1 - Methods of beating or refining; Beaters of the hollander type
Patents for D21D 1 - Methods of beating or refining; Beaters of the hollander type (3,356)
11/1982
11/30/1982US4361464 Rapid method for liberating the latent properties of mechanical pulps
11/02/1982US4357208 Lignocellulose, refining
11/02/1982CA1134566A1 Treating pulp with oxygen
11/02/1982CA1134561A1 Treating pulp with oxygen
11/02/1982CA1134559A1 Treating pulp with oxygen
10/1982
10/26/1982US4355768 Rotary grinding disc for defibrating apparatus
10/26/1982US4355767 Device in grinding apparatus
10/26/1982CA1134334A1 Screening apparatus
09/1982
09/28/1982US4351489 Refiner disk
09/21/1982US4350499 Vapor separating method and apparatus
07/1982
07/21/1982EP0056263A1 A method for improving the washing of cellulose pulps produced from lignocellulosic material
07/13/1982US4339084 Pulp refining apparatus with adjustable treating gap
03/1982
03/23/1982CA1120300A1 Method and device in beating apparatus for ligno-cellulose material
01/1982
01/26/1982CA1117203A1 Programmable refiner controller
01/19/1982CA1116453A1 Grinding elements of a grinding mill, especially for a production of special kinds of papers and cardboard
01/13/1982EP0007957B1 An apparatus for defibrating and, at the same time, conditioning cellulosic material
12/1981
12/01/1981US4303207 Screening apparatus
11/1981
11/24/1981US4301974 Refining apparatus
11/24/1981CA1112925A1 Refining apparatus
11/24/1981CA1112816A1 Method of producing peroxide bleached pulp
11/10/1981CA1112088A1 Broad-band pulsation attenuator
10/1981
10/20/1981US4295927 Method and apparatus for treating pulp with oxygen and storing the treated pulp
10/20/1981US4295926 Method and apparatus for treating pulp with oxygen
10/20/1981US4295925 Treating pulp with oxygen
10/13/1981CA1110479A1 Device in grinding apparatus for lignocellulose material
09/1981
09/29/1981US4292122 Bonding properties of mechanical pulps
09/08/1981US4288288 Apparatus for mixing chemicals into pulp at a refiner inlet
09/02/1981EP0034602A1 Apparatus for controlling the refining of pulp.
08/1981
08/18/1981US4284247 Apparatus for defibrating and conditioning nonflowable cellulosic material
08/18/1981CA1107113A1 Coaxial feeder
08/18/1981CA1107112A1 Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus
08/11/1981US4283252 Method and apparatus for producing fiber pulp from fibrous lignocellulose containing material
08/11/1981US4283016 Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus
07/1981
07/28/1981US4280868 Method for refining lignocellulose-containing material
07/21/1981US4279694 Method for treating refined mechanical pulp and thermo mechanical pulp with ozone
07/21/1981CA1105604A1 Method and system for detecting plate clashing in disc refiners
07/14/1981CA1104856A1 Pulp refining element
07/07/1981CA1104402A1 Refiner
06/1981
06/30/1981US4275852 Apparatus for controlling the refining of fibrous pulp grist in a drum refiner
06/23/1981US4274602 Rotary grinding disc for defibrating apparatus
06/02/1981US4270976 Defibration in grinding space between rotating disks in pressurized steam
06/02/1981CA1102159A1 Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus
06/02/1981CA1102158A1 Method and apparatus for controlling the refining of fibrous lignocellulose pulp material
05/1981
05/26/1981US4269365 Beater mill
05/26/1981US4269362 Repeated rapid pressure pulsations
05/26/1981CA1101763A1 Device in beating element for grinding apparatus for fibrous, preferably vegetable material
05/26/1981CA1101718A1 Method and apparatus for making pulp
05/26/1981CA1101717A1 Feed and vent apparatus for refiners
05/20/1981EP0028658A1 Process and apparatus for treating waste paper
05/19/1981CA1101257A1 Method and apparatus in pulping
04/1981
04/21/1981US4262700 Broad-band pulsation attenuator
03/1981
03/05/1981WO1981000580A1 Method and apparatus for controlling the refining of pulp
03/03/1981US4253613 Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus
01/1981
01/20/1981CA1094191A1 Device for measuring axial displacement of rotating machine parts especially for measurement during operation of the plate clearance in a disc refiner
12/1980
12/09/1980CA1091072A1 Method for treating refined mechanical pulp and thermo mechanical pulp with ozone
11/1980
11/25/1980US4235665 Method and apparatus for producing fiber pulp in a steam pressurized grinding system
11/11/1980US4233600 Method and system for detecting plate clashing in disc refiners
11/11/1980CA1089273A1 Treating chemically delignified and fiberized cellulosic pulp for pulp property improvement
11/04/1980CA1088790A1 Method of making pulp
10/1980
10/21/1980US4228964 Apparatus for processing cellulose insulation
10/01/1980EP0016743A1 Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus
09/1980
09/23/1980US4223847 Coaxial feeder
09/09/1980US4221631 Disk refiner, steam withdrawal
09/09/1980US4221343 Vented disc refiner
09/02/1980US4220290 Conveyor device for feeding lignocellulosic material to a disc-type grinding apparatus
08/1980
08/26/1980US4219166 Disk defibrator
08/20/1980EP0014199A1 Method and apparatus for disintegration of fibrous material
08/19/1980CA1084020A1 Device for preventing metallic contact, and for determining and controlling the spacing between grinding members
08/12/1980CA1083550A1 Mounting base of a disk refiner
07/1980
07/22/1980CA1082021A1 Apparatus for defibrating and conditioning nonflowable cellulosic material
06/1980
06/17/1980CA1079559A1 Method and apparatus for production of cellulose pulp
05/1980
05/27/1980CA1078237A1 Infeed tube for disc refiners
05/13/1980US4202505 Refiner
05/06/1980CA1076866A1 Infeed disc for disc-type refiners
04/1980
04/22/1980US4199114 Apparatus for producing disintegrated material, preferably pulp
04/16/1980EP0009483A1 Method of making pulp
04/01/1980CA1074605A1 Twin refiner apparatus
03/1980
03/04/1980US4191338 Infeed disc for disc-type refiners
02/1980
02/26/1980CA1072308A1 Method of manufacturing comminuting discs for wood pulp refining machines
02/20/1980EP0007957A1 An apparatus for defibrating and, at the same time, conditioning cellulosic material.
02/05/1980CA1071138A1 Electro-chemical corrosion of working elements
01/1980
01/29/1980CA1070536A1 High temperature low consistency refining of thermo-mechanical pulp
01/15/1980US4184204 Programmable refiner controller
01/09/1980EP0006315A1 Method and system for detecting plate clashing in disc refiners
01/01/1980CA1068960A Device for evacuating blow back steam in pulp refining apparatus
11/1979
11/29/1979WO1979001002A1 Pulp refining apparatus with adjustable treating gap
11/29/1979WO1979001001A1 Intermeshing screw-type refiner
11/06/1979CA1065663A1 Method and apparatus for producing fiber pulp from fibrous lignocellulose containing material
10/1979
10/23/1979CA1064747A1 Device in grinding apparatus
10/18/1979WO1979000789A1 Method and apparatus for disintegration of fibrous material
10/16/1979US4171101 Method of operating a disk refiner provided with reversible refining plates
10/02/1979CA1063406A1 Method and apparatus for producing fiber pulp in a steam-pressurized grinding apparatus
10/02/1979CA1063405A1 Apparatus for producing wood pulp from lignocellulose-containing material
09/1979
09/25/1979CA1063081A1 Material disintegrating-and-blowing apparatus
09/11/1979CA1062062A1 Paper stock rotor axial position controlling and locking device
09/06/1979WO1979000634A1 Method of making pulp
09/04/1979US4166584 Apparatus for producing pulp from lignocellulose-containing material
08/1979
08/07/1979US4163525 Device for evacuating blow-back steam in pulp refining apparatus
07/1979
07/24/1979CA1058819A1 Method of stripping pulp bales and a machine therefor
07/10/1979CA1057987A1 Sealing device for preventing leakage of pressurized medium through the driveshaft opening of a defibrator housing and the like
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