Flow restraining elements in the headbox of a paper machine

Details Flow restraining elements in the headbox of a paper machine Flow restraining elements in the headbox of a paper machine

1984-10-22

1988-08-23

Alvo, Steve

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162344, 162347, D21F 102

Patent

active

047658681

ABSTRACT:
A head box in a paper machine, characterized in that a flow path having a repeatedly and alternately narrowing and broadening cross-section configuration is formed within a slice chamber delimited by a top plate and a bottom plate converging towards a slip lip.

REFERENCES:
patent: 2718824 (1955-09-01), Hornbostel
patent: 3562107 (1971-02-01), Schmaeng
patent: 3843470 (1974-10-01), Betley et al.
patent: 3976539 (1976-08-01), Kirjauaiunen
patent: 4021296 (1977-05-01), Reiner
patent: 4104116 (1978-08-01), Koskimies
patent: 4125429 (1978-11-01), Hergert et al.
patent: 4141789 (1979-02-01), Justus
patent: 4367014 (1983-03-01), Bergstrom
patent: 4373993 (1983-02-01), Fujiwara
patent: 4604164 (1986-08-01), Fujiwara et al.

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