Browdy and Neimark
Moisture sealing apparatus for powdery brazing flux
 Disclosed herein is a moisture sealing apparatus for a powdery brazing flux, comprising an open-topped container for the powdery brazing flux, a nozzle positioned at the center over the container and adapted to cause dry air to flow out through a slit opened out in all horizontal directions, and an air pipe for supplying the dry air, which is connected to the nozzle. According to the apparatus, a powdery flux having strong deliquescence is always kept a completely dry state. 
F
F26B
inventional
Makoto
Nishimura