US 11,786,908 B1
Autogenous impact mill that reduces size of friable material
Alvin A. Snaper, Las Vegas, NV (US)
Filed by Alvin A. Snaper, Las Vegas, NV (US)
Filed on Jun. 22, 2021, as Appl. No. 17/354,284.
Application 17/354,284 is a continuation of application No. 15/464,776, filed on Mar. 21, 2017, granted, now 11,045,812.
Claims priority of provisional application 62/318,920, filed on Apr. 6, 2016.
This patent is subject to a terminal disclaimer.
Int. Cl. B02C 13/08 (2006.01); B02C 13/09 (2006.01); B02C 13/28 (2006.01); B02C 23/16 (2006.01); B02C 23/26 (2006.01); B02C 23/24 (2006.01); B02C 23/28 (2006.01)
CPC B02C 13/08 (2013.01) [B02C 13/09 (2013.01); B02C 13/2804 (2013.01); B02C 23/16 (2013.01); B02C 23/24 (2013.01); B02C 23/26 (2013.01); B02C 23/28 (2013.01); B02C 2023/165 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method comprising:
a) receiving pieces of material to be size reduced into an interior area of a housing of an autogenous impact mill,
b) producing an air flow jet within the interior area,
c) holding particles of the received pieces of material suspended in air adjacent to the air flow jet in the interior area via a Coanda Effect,
d) concurrently while the particles are held suspended in air during step (c), propelling other particles of the received pieces of material that are not currently held suspended in air via the Coanda Effect, into ricochet bars in the interior area, wherein at least some particles ricochet from the ricochet bars into impacting engagement with the particles that are currently being held suspended in air via the Coanda Effect, wherein the impacting engagement of the particles breaks at least some particles causing them to be sized reduced,
e) passing the size reduced particles out of the interior area through an exit opening.