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US 3,948,383 AGranted
Double belt air pressurized elevator for bulk material
AssigneeAllis-Chalmers Corporation
InventorsAnthony D. Janitsch, Claude Morissette
Life of this patent
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AssigneeAllis-Chalmers Corporation
InventorsAnthony D. Janitsch, Claude Morissette
Estimating the term…
In a bulk material handling apparatus, a pair of fluid impervious flexible endless belts are arranged about drive and idler pulleys to provide a material receiving run of one belt, a substantially vertical elevator or lift run or elevating section where the belts are in face-to-face contact for receiving the material therebetween; and an upper material delivery run where the material is discharged at a different level. In the elevating section, fluid pressure means are provided to effectively cause engagement of the edge portions of the belts with one another in order to eliminate spillage of the material being elevated and also in the elevating section fluid pressure means are provided to urge the remainder of the belts toward one another. These means involve the use of fluid pressure in various ways.
A conveyor system comprising a pair of flexible, fluid impervious endless belts, driven at the same speed, each belt having a portion in face-to-face relationship to the other to convey a material therebetween and to define a working zone and elevating section, the improvement comprising:
A conveyor system having a pair of flexible fluid impervious endless belts, driven at the same speed, with an elevating portion in which said belts are in face-to-face relationship in order to elevate bulk material therebetween and defining an elevating section, the improvement which comprises,
Dependencies are inferred from the claim text.