Screening apparatus for paper making stock
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United States of America Patent
Stats
-
Dec 17, 1991
Grant Date -
N/A
app pub date -
Nov 19, 1990
filing date -
Nov 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pressure screening apparatus for paper making stock embodies a cylindrical perforated screening member which defines screening and accepts chambers on the inside and outside thereof respectively in a closed housing which is filled with liquid stock under pressure in operation. A rotor member which operates in the screening chamber to keep the screening perforations open is specially constructed to provide it with sufficient buoyancy to counterbalance its weight when the apparatus is in operation and the housing is therefore filled with liquid stock. In the preferred form, the housing is mounted with the rotor axis horizontal, but it can also be made with the rotor axis vertical.
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Family
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Cited Art Landscape
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