Powder dispenser

Details Powder dispenser Powder dispenser

1975-03-10

1976-10-19

Knowles, Allen N.

Dispensing

With gas agitation

B65G 312

Patent

active

039866432

ABSTRACT:
A powder dispenser for gently issuing puffs of relatively low velocity air-entrained powdered material through a discharge port. The dispenser has means for substantially fluidizing a bed of powdered material contained therein with an upward pulse of relatively low velocity, substantially columnar air flow so that some of the powder in the bed of powdered material becomes entrained in and issued from the dispenser by relatively low velocity air. The dispenser may include a foraminous bulkhead which defines the bottom of a powder accommodating chamber, a plenum chamber subjacent the foraminous bulkhead, and means for pumping a volume of air into the plenum chamber so that a pulse of relatively low velocity air flows upward through the foramina of the bulkhead and the bed of powdered material disposed thereon.

REFERENCES:
patent: 280202 (1883-06-01), Mattson
patent: 1507399 (1924-09-01), McCormick
patent: 2779126 (1957-01-01), Cook
patent: 3199923 (1965-08-01), Brooks

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