US 12,473,150 B2
Solid state gravimetric vibratory dosing feeder
Mike Dudley, Langley, WA (US)
Filed by Mike Dudley, Langley, WA (US)
Filed on Jul. 29, 2024, as Appl. No. 18/787,753.
Claims priority of provisional application 63/516,158, filed on Jul. 28, 2023.
Prior Publication US 2025/0033892 A1, Jan. 30, 2025
Int. Cl. B65B 1/08 (2006.01); B65B 1/32 (2006.01); B65B 39/00 (2006.01); B65G 27/32 (2006.01)
CPC B65G 27/32 (2013.01) [B65B 1/08 (2013.01); B65B 1/32 (2013.01); B65B 39/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A gravimetric vibratory dosing feeder comprising:
a hopper configured to supply bulk solids;
a vibratory pre-feeder receiving material from the hopper and conveying it in a controlled flow rate;
a weighing feeder receiving material from the vibratory pre-feeder and discharging it to a downstream container;
piezoelectric benders actuating the weighing feeder to propel the material in a ballistic trajectory off a pan; and
electronic controls configured to synchronize the operation of the vibratory pre-feeder and the weighing feeder, and to measure the mass of the material based on the ratio of actuation energy to return energy of the piezoelectric benders.