Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Patent
1997-05-01
1999-01-26
Hastings, Karen M.
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
162336, 162341, 162344, D21F 102
Patent
active
058633871
ABSTRACT:
A paper-making machine for making a paper web from a fiber suspension includes a headbox having a plurality of walls defining a chamber, and an inlet connected to at least one of the walls and disposed in fluid communication with the chamber. The inlet is configured to receive the fiber suspension. The headbox also has a discharge nozzle disposed in fluid communication with the chamber. The discharge nozzle defines an outlet from which the fiber suspension is discharged. The headbox also includes a sonic transducer, associated with the discharge nozzle, for transmitting sonic energy into the fiber suspension within the discharge nozzle and thereby substantially deflocculating the fiber suspension within the discharge nozzle.
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patent: 4885060 (1989-12-01), Beran et al.
patent: 5423948 (1995-06-01), Graf et al.
patent: 5578172 (1996-11-01), Graf
Hastings Karen M.
Voith Sulzer Technology North America, Inc
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