Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Charging and/or discharging fibrous material
Reexamination Certificate
2007-06-12
2007-06-12
Fortuna, José A. (Department: 1731)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Charging and/or discharging fibrous material
C162S047000, C162S061000, C162S068000, C162S246000, C162S252000, C162S259000
Reexamination Certificate
active
10474127
ABSTRACT:
A system for feeding fibres from a fibre separation step at a first pressure to a drying step at a second, lower pressure, the system comprising a sluice feeder (3) provided between the fibre separation step and the drying step. At least an outlet (14) of the sluice feeder (3) is enclosed by a housing (4) for pressurization by means of a pressure medium in the housing (4) to a pressure that essentially corresponds to the first pressure in the sluice feeder (3). The fed out fibre from the sluice feeder (3) to the housing (4) are removable by means of the pressure medium in the housing (4) via a control valve (20), which regulates the pressure in the housing (4), to the drying step at the second, lower pressure. The pressurization in the housing (4) prevents steam to escape from the sluice feeder (3). A method for feeding fibres, the fibres are fed to a sluice feeder (3) which is pressurized from the outside by means of a pressure medium and are fed out by means of the pressure medium via a pressure regulating control valve (20) to the drying step.
REFERENCES:
patent: 3681192 (1972-08-01), Reinhall
patent: 4072274 (1978-02-01), Syrjanen
patent: 4129263 (1978-12-01), Sjobom
patent: 5207870 (1993-05-01), Aho et al.
patent: 5672245 (1997-09-01), Andtbacka et al.
patent: 6024837 (2000-02-01), Laakso et al.
patent: 6109450 (2000-08-01), Grunenwald et al.
patent: 6214171 (2001-04-01), Snekkenes
patent: 6361649 (2002-03-01), Snekkenes
patent: 2001/0000588 (2001-05-01), Snekkenes
patent: 2004/0104002 (2004-06-01), Obitz
patent: 2005/0189082 (2005-09-01), Obitz
patent: 2006/0037723 (2006-02-01), Gustavsson et al.
patent: 19910530 (2000-09-01), None
patent: 420226 (1981-09-01), None
patent: 437680 (1985-03-01), None
patent: WO 200284019 (2002-10-01), None
patent: WO 2003074779 (2003-09-01), None
patent: WO 2004079086 (2004-09-01), None
patent: WO 2005064078 (2005-07-01), None
Dowell & Dowell , P.C.
Fortuna Jos'e A.
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