US 11,656,117 B1
Test system for rotary airlocks
Gerald K. Bequette, Ste. Genevieve, MO (US); Nathan T. Hooper, Farmington, MO (US); Randy Griffard, St. Mary, MO (US); and Martin Gran, Chesterfield, MO (US)
Assigned to Mississippi Lime Company, St. Louis, MO (US)
Filed by Mississippi Lime Company, St. Louis, MO (US)
Filed on May 14, 2020, as Appl. No. 16/874,462.
Claims priority of provisional application 62/847,667, filed on May 14, 2019.
Int. Cl. G01M 3/26 (2006.01); G01F 25/00 (2022.01); G01F 15/00 (2006.01); B65G 53/04 (2006.01); G01F 11/26 (2006.01)
CPC G01F 25/0092 (2013.01) [B65G 53/04 (2013.01); G01F 11/261 (2013.01); G01F 15/005 (2013.01); G01M 3/26 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotary airlock test system comprising:
a pneumatic blower which provides air flow into a source air path, said source air path splitting into a first air path and a second air path;
a plurality of flow sensors;
a first rotary airlock placed as if it feeds particulate into said first air path via an outlet;
a second rotary airlock placed as if it feeds particulate into said second air path via an outlet; and
a control system for obtaining outputs from the plurality of flow sensors;
wherein, at least one of said flow sensors from said plurality is placed in said source air path;
wherein, at least one of said flow sensors from said plurality is placed in said first air path after said first rotary airlock; and
wherein, at least one of said flow sensors from said plurality is placed in said second air path after said second rotary airlock.