Powder conveying apparatus

Details Powder conveying apparatus Powder conveying apparatus

1976-11-04

1978-08-08

Reeves, Robert B.

Cutlery

302 56, 302 58, B65G 5314

Patent

active

041052560

ABSTRACT:
Powder conveying apparatus, particularly useful for transferring powder paint from a hopper to a spray gun, employs two flow constrictors defining axially aligned flow passages between a powder inlet and an outlet. An annular gap between opposed ends of the flow constrictors communicates with a compressed gas supply passage for entraining powder from the inlet to the outlet, and one of the flow constrictors is displaceable for adjusting the annular gap and thereby varying the powder throughput rate independently of the compressed gas supply.

REFERENCES:
patent: 424638 (1890-04-01), Barclay et al.
patent: 2791470 (1957-05-01), Jolley
patent: 3730437 (1973-05-01), Rousselot
patent: 3863808 (1975-02-01), Vertue

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