| 摘要 |
Process for expelling very fine powders through narrow openings or nozzles, which exploits the action of vibration on the particles of powder, the frequency of vibration being the same as, or similar to, the frequency of the particles' natural resonance. Device for implementing said process, consisting essentially of a reservoir (1) coupled to a vibration generator (4, 5) and provided with a nozzle (2). |
