Method and device for processing powder

Details Method and device for processing powder Method and device for processing powder

2007-07-03

2007-07-03

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

C366S139000

Reexamination Certificate

active

10998815

ABSTRACT:
A powder is de-aerated in a collector and then transferred to a chamber via a valve. The chamber may then be injected with a low-pressure air stream carrying an additive for mixing with the de-aerated powder. The mixing of the powder with the air and additive stream may occur in the valve and/or chamber. After mixing of the powder with the air and additive stream, the mixed powder and additive may be further mixed in the chamber and/or second valve prior to transferring the mixed powder and additive to a holding container or other processing device.

REFERENCES:
patent: 3606270 (1971-09-01), Zimmerly
patent: 3946996 (1976-03-01), Gergely
patent: 4571089 (1986-02-01), Gudlauski et al.
patent: 6740463 (2004-05-01), Shigemori et al.

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