Ejector hood
AssigneeMSS, Inc.
InventorArthur G. Doak
Life of this patent
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Abstract
An ejection hood apparatus includes a transfer conduit and a hood. The transfer conduit includes a downwardly concave control shell. An inlet end portion of the transfer conduit receives an upwardly directed transfer air stream including ejected material with at least a partially upward trajectory. The hood defines an ejection chamber including a lower chamber portion and an upper chamber portion. The lower chamber portion receives the transfer air stream from an outlet end portion of the transfer conduit with at least a partially downward trajectory. The hood includes at least one air outlet passage communicated with the upper chamber portion for exhausting at least a portion of the transfer air stream.
Claims6
A method of transferring material, the method comprising the steps of:
- (a) providing on a conveyor a stream of material to be sorted;
- (b) launching the stream of material off of the conveyor thus creating an airborne stream of material;
- (c) ejecting material from the airborne stream of material with a nozzle array directed at least partially upwardly thereby creating a transfer air stream including entrained material;
- (d) directing the transfer air stream at least partially downwardly through a chamber inlet into a receiving chamber;
- (e) creating a swirling air flow of the transfer air stream in the receiving chamber so that the swirling air flow does not flow back through the chamber inlet;
- (f) dropping entrained material out of the swirling air flow downward through a chamber outlet;
- and
- (g) relieving at least some of the swirling air flow through an airflow outlet defined in an upper portion of the receiving chamber.
Dependencies are inferred from the claim text.