Powder fluidizer with feed for constant powder level

A distributor for supplying powdered solid products to apparatus utilizing such products, said distributor comprising:

• a first container to which said product is supplied,
• a second container from which said product is delivered to said apparatus,
• means for fluidizing the powdered solid product in both containers,
• and means for maintaining the level of said product in said second container at approximately a predetermined level, said means for maintaining the level of said product comprising a connection between said containers, said connection including an upper portion terminating at said predetermined level and transfer means for alternately moving product adjacent said connection from said first container toward said second container and from said second container toward said first container, so that there is a net movement of product from said first container toward said second container only when the level of said product in said second container is below said predetermined level so that the amount of product in said second container adjacent said connection and thus available for transfer is less than in said first container.