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Leblanc Peter: Centrifugal cleaner.. Ahlstroem Oy, July 8, 1992: EP0493950-A2 (26 worldwide citation)

A centrifugal cleaner has a cleaning quotient greater than .5 and a rejects by weight performance value typically of less than 5% (e.g. less than 2%) for conventional paper pulp furnish. The tangential inlet nozzle to the side wall near the top of the cleaner body has a non-circular -- preferably D- ...


52
Masaaki Otoguro: Process for the manufacture of pulp contained particles for the treatment of excrement. Wenderoth Lind & Ponack, December 15, 1981: US04305345 (26 worldwide citation)

A process for the manufacture of paper pulp containing particles for the treatment of excrement of primarily domestic animals and pets. Hot water and a filler are added to a paper pulp in solidified condition and they are agitated so as to form a slurry of the paper pulp. The slurry is subjected to ...


53
Stromberg Bertil, Jiang Jian, Laakso Richard, Phillips Joseph, Greenwood Brian, Prough James: Extended kraft cooking with white liquor added to wash circulation.. Kamyr, March 25, 1992: EP0476230-A2 (26 worldwide citation)

In the continuous kraft pulping of comminuted cellulosic fibrous material (e.g. wood chips) to produce paper pulp, viscosity for a given Kappa Number is significantly increased (e.g. at least about 20%) by adding kraft white liquor to the wash recirculation loop (38-40) in a continuous digester (19) ...


54
Evren Eryurek, Kadir Kavaklioglu: Control system using process model. Fisher Rosemount Systems, Westman Champlin & Kelly P A, August 3, 2004: US06772036 (25 worldwide citation)

A control system is provided for controlling a process for making paper or paper pulp. The process has a process product output at an end of the process. The controls include a process variable sensor input configured to receive a process variable related to the process. The controller is configured ...


55
Thomas R Delcourt: Varying annular fluidization zone for increased mixing efficiency in a medium consistency mixer. Kamyr, Nixon & Vanderhye, January 3, 1995: US05378321 (25 worldwide citation)

Medium consistency (e.g. about 5-18%) paper pulp is mixed with a treatment fluid by fluidizing them while subjecting them to a constantly changing shear field in radial and axial planes. This is accomplished by providing a mixer rotor having a constantly varying cross-section along a dimension of el ...


56
Johan Gullichsen: Combined fluidizing and vacuum pump. Kamyr, Nixon & Vanderhye, October 11, 1988: US04776758 (25 worldwide citation)

A pump for medium consistency suspensions (e.g. 6-15%), such as paper pulp, simultaneously pumps and degasses the suspension. A common shaft mounts a fluidizing impeller and a vacuum pump impeller and a common wall with gas exhaust passageways is disposed between the fluidizing pump housing and vacu ...


57
William R Shields, Kapil M Singh, James F Suska, Jody MacDonald: Measurement of paper pulp and fiber visual characteristics. International Paper Company, Luedeka Neely & Graham P C, July 28, 1998: US05786894 (25 worldwide citation)

A system for determining characteristics of objects in wood pulp includes a pulp sampling and dilution system for diluting and dispersing samples of pulp, and an imaging/analysis system for capturing images of pulp objects, including fibers, and analyzing the captured images. Samples of pulp are pro ...


58
Martin C Riddell, Ian M Waring: Paper manufacture employing filler and acrylamide polymer conglomerates. Martin Clark Riddell, Finnegan Henderson Farabow & Garrett, January 1, 1980: US04181567 (25 worldwide citation)

A method of increasing the amount of mineral filler which can be contained in filled paper sheet produced on a papermaking machine without consequentially reducing the mechanical properties such as the tensile strength of the paper sheet comprises incorporating the mineral filler into the paper pulp ...


59
Martin O Saltarelli: Refiner head assembly and refining disk therefor. Beloit Corporation, Dirk J Veneman, Michael L Gill, Gerald A Mathews, July 19, 1977: US04036443 (25 worldwide citation)

A refiner head assembly of the type suitable for use in disk refiners, such as those employed in paper pulp processing. The assembly includes a backing head and a refining disk. The disk mounts reversibly between a pair of radially spaced, circumferentially extending flanges upstanding from one face ...


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