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US 5,665,207 AGranted
Strainer for paper making
AssigneeAikawa Iron Works Co., Ltd.
InventorYoshihiko Aikawa
Life of this patent
Estimating the term…
Abstract
A strainer for paper making capable of accomplishing maceration and screening of a paper feedstock with high efficiency and being simplified in structure and manufacturing. The strainer is arranged in proximity to a rotor and formed with a plurality of recesses on a surface thereof opposite to the rotor. Also, a screening apparatus for paper making which uses such a strainer is disclosed.
Claims6
A screening apparatus for paper making which macerates and screens a paper feedstock, comprising:
- a tank;
- a rotor rotatably arranged in said tank;
- and
- a unitary strainer arranged in proximity to said rotor and formed with through-holes through which an available fiber material is passed in a manner to be distributed substantially all over a surface thereof;
- said strainer being formed on a surface thereof opposite to said rotor with a plurality of recesses;
- said recesses each having a discontinuous currilinear edge functioning as a cutter, which cooperates with said rotor.
3 more elements
Dependencies are inferred from the claim text.