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US 7,124,969 B2Granted
Cutting device for reducing waste material
AssigneeFeltron nv
InventorFrederic Lietaer
Life of this patent
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AssigneeFeltron nv
InventorFrederic Lietaer
Estimating the term…
A cutting device for reducing waste material comprises at least two groups of knives mounted on a shaft, next to one another, installed rotatably in front of an anvil. The groups of knives, each operating in a restricted zone of the width of supply each comprises several splitting knives to split the waste material mainly according to the sense of supply of the waste material. Each comprises at least one chopping knife intended to cut the waste material mainly across the sense of supply of the waste material to be cut. The chopping knives of the groups of knives situated next to one another are mounted on the shaft, shifted with respect to one another, so that each of them affects the waste material at a different time and place. A calibrating sieve filters the free discharge of the shreds and contributes to a supplementary (secondary and tertiary) cutting.
Cutting device for reducing waste material, comprising at least two groups of knives situated on a shaft, next to one another, installed rotatably in front of an anvil, each of said groups of knives comprising several splitting knives, intended to split the waste material mainly according to the sense of supply and at least one chopping knife, intended to cut the waste material mainly across the sense of supply of the waste material to be cut, wherein each of the chopping knives of the groups of knives situated next to one another, operate in a zone of the width of supply and these chopping knives being mounted on the shaft and shifted with respect to one another, so that each of the chopping knives affects the waste material at a different time.
Cutting device for reducing waste material, comprising at least two groups of knives situated on a shaft, next to one another, installed rotatably in front of an anvil, each of said groups of knives comprising several splitting knives to split the waste material mainly along a sense of supply and at least one chopping knife to cut the waste material mainly across the sense of supply of the waste material to be cut, wherein each of the chopping knives of the groups of knives situated next to one another operates in a zone of the width of supply and the chopping knives being mounted on the shaft and shifted angularly with respect to one another, so that each of the chopping knives affects the waste material at a different time, wherein the cutting device comprises a shredding chamber, the discharge side of which is provided with a sieve having openings for calibrating sizes of shreds.
Cutting device for reducing waste material, comprising at least two groups of knives situated on a shaft, next to one another, installed rotatably in front of an anvil, each of said groups of knives comprising several splitting knives to split the waste material mainly along a sense of supply and at least one chopping knife to cut the waste material mainly across the sense of supply of the waste material to be cut, wherein each of the chopping knives of the groups of knives situated next to one another operates in a zone of the width of supply and the chopping knives being mounted on the shaft and shifted angularly with respect to one another, so that each of the chopping knives affects the waste material at a different time, wherein the splitting knives within one group of knives are mounted on the shaft, shifted with respect to one another, so that projections of their cutting faces do not coincide on the anvil.
Dependencies are inferred from the claim text.