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US 4,821,861 AGranted
Bulk material chute system
OwnerRobert Shanahaninventor
Life of this patent
Estimating the term…
Abstract
A dust-preventing, vertical chute system for loading bulk materials from a conveyor, slide or other dispensing mechanism. The system including a series of interconnected, partially nestled open buckets having a venturi insert of size and configuration compatible with the material to be loaded for generating a low pressure, internal air stream resulting in external air being drawn into the bucket system during dispensing of the bulk material into a ship or the like for inhibiting escape of dust.
Claims10
A dust-preventing, verticle chute system comprising:
- a plurality of interconnected buckets each having a wall of generally truncated conical configuration with an open top and a smaller diameter open bottom, with first means for interconnecting the buckets to an auxiliary bulk material dispensing device, and second means for interconnecting the buckets in a vertical stack with the bottom of each upper bucket partially nestled in the top of the next lower bucket, wherein the arrangement provides an air space between the nestled bottom of each upper bucket and the top of the next lower bucket;
- and,
- a venturi member situated in the bottom of each upper bucket the venturi member having a constricted section with an air passage means below the constricted section communicating with the air space between buckets for drawing atmospheric air into the chute system when bulk material passes through the chute system.
Dependencies are inferred from the claim text.