Belt
AssigneeValmet Technologies Oy
InventorsVesa-Matti Riihioja, Tuomas Suoranta, Arsi Nikkinen, Janne Honkanen
Life of this patent
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Abstract
A belt (10) for a fiber web machine has an inner surface (11) and an outer surface (12). A plurality of parallel dewatering grooves are arranged in a first direction (D1) on the outer surface (12) of the belt (10), each dewatering groove having a width. A first dewatering groove (21) has shallow portions (30) having a first depth (32), and deep portions (40) having a second depth (42), which first and second depths (32, 42) are determined from the outer surface (12) of the belt (10) in a depth direction, wherein the first depth (32) is smaller than the second depth (42).
Claims19
A belt for a fiber web machine, the belt having an inner surface and an outer surface, wherein the belt comprises a plurality of parallel dewatering grooves arranged in a first direction on the outer surface of the belt, each dewatering groove having a width, wherein a first dewatering groove comprises:
- shallow portions having a first depth;
- and
- deep portions having a second depth, which first and second depths are determined from the outer surface of the belt in a depth direction, wherein the first depth is smaller than the second depth.
A belt for a fiber web machine, the belt having an inner surface and an outer surface, wherein the belt (10) comprises:
- a plurality of parallel dewatering grooves which extend in a first direction and opening on the outer surface of the belt, each dewatering groove having a width measured in a second direction perpendicular to the first direction;
- wherein each dewatering groove has a plurality of deep portions extending a second depth beneath the outer surface;
- wherein each dewatering groove has a plurality of shallow portions, each shallow portion being positioned between two deep portions, and each shallow portion extending beneath the outer surface a first depth that is less than the second depth;
- and
- wherein each shallow portion has two transition portions which extend in a continuous transition in depth from the first depth to the second depth of the deep portions on opposite sides of the shallow portion.
Dependencies are inferred from the claim text.