B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 7/08 (2006.01) A44B 18/00 (2006.01) D21F 1/00 (2006.01)
Patent
CA 2412007
An industrial fabric comprising at least two separate continuous layers. Each layer includes at least one segment (1) fabricated as a plastics extrusion, such as a strip or panel. The layers are joined by means of cooperating linear interlocking structures (10) located on contiguous planar faces of the segments in the layers. After engagement to form a joint, the cooperating linear interlocking structures provide and maintain a void volume (30) between the layers, and resist compressive loading of the fabric in a more or less predictable manner. The segments may be fabricated from differing thermoplastics so as to impart differing physical properties to each layer. The segments may be porous or non-porous. The industrial fabrics are suitable for use in filtration, membrane, geotechnical and like applications, and find particular utility in continuous filtration applications such as pulp and paper making, sludge dewatering and the like.
L'invention concerne un tissu industriel comportant au moins deux couches continues séparées. Chaque couche comprend au moins un segment (1) fabriqué par extrusion de matière plastique, p. ex bande continue ou panneau. Les couches sont réunies au moyen de structures (10) linéaires emboîtées coopérantes situées sur des faces planes contiguës des segments dans les couches. Après assemblage, les structures linéaires emboîtées coopérantes constituent et permettent de maintenir un volume (30) de vide entre les couches, et résistent à une charge compressive du tissu de manière plus ou moins prévisible. Les segments peuvent être fabriqués à partir de thermoplastiques différents en vue de conférer des propriétés physiques différentes à chaque couche. Les segments peuvent être poreux ou non poreux. Ces tissus industriels conviennent pour des applications de filtration, de membrane, géotechniques et analogue, et sont particulièrement utiles dans des applications de filtration continue telles que la fabrication de pâte et de papier, la déshydratation des boues et analogue.
Baker Samuel M.
Jackson Graham W.
Astenjohnson Inc.
Baker Samuel M.
Jackson Graham W.
Shapiro Cohen
LandOfFree
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