Unit for the Dosage of Grained, Pourable Materials, in Particular Blasting Abrasives

Author:  Ruholl, Heinz
Source:  US Patent 6,000,995
Doc ID:  1999066
Year of Publication:  1999
Abstract:  
A dosage device for feeding grained, pourable materials, particularily abrasive blasting materials. Feeding is accomplished by use of a dosage auger that employs a screw maechanism that either decreases or increases relative to the distance between the incline of the spiral wings. The device also includes an adjustable drive, a flow measuring device to monitor and control flow rates and a mixing chamber to assure full mixing of abrasive material in a compressed air stream.