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US 4,071,198 AGranted
Apparatus for granulating material
AssigneeAmacoil Machinery, Inc.
InventorMerritt D. Tetreault
Life of this patent
Estimating the term…
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AssigneeAmacoil Machinery, Inc.
InventorMerritt D. Tetreault
Estimating the term…
An auger feed granulator having a cutting chamber, the cutting chamber having a rotating knife assembly which traces a cutting circle which intersects the envelope defined by the auger. The rotating knife assembly engages and removes material carried into the cutting chamber by the auger. The knife assembly axis is offset from the auger axis. Stationary knives are provided adjacent the rotating knife assembly, as well as a removable screen having a selected mesh size which coacts with the rotating knives to determine the granule size of the material which exits from the machine. The screen is mounted on one side of the granulator and preferably has a radius of curvature the same as the radius of the circle traced by the rotating knife assembly. Lastly, the granulator is mounted on a base provided with a jack screw for tilting the granulator to any desired position without changing the relationship of the working parts of the granulator to each other.
In an auger feed granulator, a cutting chamber having an inlet opening in one side wall, a feed hopper, a shaft extending through said opening and supported at one end at said feed hopper and at its other end at the opposite wall of said cutting chamber, an auger mounted on a first portion of said shaft for feeding material from said hopper to said cutting chamber, said auger extending along a substantial length of said shaft, a second portion of said shaft, without said auger mounted thereon, being positioned within said cutting chamber, means for rotating said auger to move material from said feed hopper into said cutting chamber, and means for removing from the second portion of the shaft, sprues and runners of material extruded from the auger, said means comprising a rotatable knife assembly having a plurality of peripherally attached knives, mounted in said cutting chamber, the peripheral cutting path of the attached knives intersecting the auger envelope to remove sprues and runners from the second portion of the shaft.
Dependencies are inferred from the claim text.