US 7,320,561 B2
System and method for handling bulk materials
Richard W. Ambs, Williamsport, Pa. (US)
Assigned to The Young Industries, Inc., Muncy, Pa. (US)
Filed on Aug. 24, 2006, as Appl. No. 11/508,850.
Application 11/508850 is a division of application No. 11/320572, filed on Dec. 30, 2005, granted, now 7,137,759.
Prior Publication US 2007/0154271 A1, Jul. 05, 2007
Int. Cl. B65G 51/36 (2006.01)
U.S. Cl. 406—31  [406/55; 406/89] 2 Claims
OG exemplary drawing
 
1. A method of transporting metered amounts of a particulate, bulk material, comprising:
conveying said material received at an upstream site to a downstream site by means of an auger disposed in a conduit having a body formed of a permeable material, said conduit having a material inlet at said upstream site, said conveying material entering said conduit through said inlet, said auger, driven by a motor;
supplying a gas under pressure through said body to form a boundary layer of fluidizing gas along an inner surface of said conduit;
sensing the mass flow rate of said material received at said downstream site; and
varying the operation of said motor responsive to differences between said sensed flow rate and a selected flow rate to incrementally increase or decrease the speed thereof to achieve said selected flow rate.