D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
92/43
D21D 5/00 (2006.01) D21D 1/00 (2006.01) D21D 1/30 (2006.01)
Patent
CA 1297329
Abstract A refiner segment (1) for disc refiners is formed with a pattern of bars (2,4) and grooves (3,5), and flow restrictions (6) are located in the grooves (5). Through apertures (8) in the bars (4) the grooves (5) communic- ate with each other so that the grooves have free comm- unication outward and inward via the apertures (8).
559631
Fetherstonhaugh & Co.
Sunds Defibrator Aktiebolag
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