US 12,214,381 B1
Portable particulate grader
Pravinkumar Patil, Udhailiyah (SA); Jamal H. Khalaifa, Al Mubarraz (SA); and Mohammad Almusaiteer, Udhailiyah (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Nov. 30, 2023, as Appl. No. 18/525,541.
Int. Cl. B07B 1/00 (2006.01); B07B 1/28 (2006.01)
CPC B07B 1/005 (2013.01) [B07B 1/28 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A portable particulate grader, comprising:
a grader body assembly comprising:
an upper housing comprising side portions;
a plurality of springs disposed on an inner portion of the upper housing and configured to hold a grader tray assembly in a descending angle toward a first side in a range of from 5 to 45 degrees, and provide vibrations to the grader tray assembly;
a lower chute comprising a bottom portion and side portions, and located immediately below the upper housing;
a dust control gate provided on a second side of the side portions of the lower chute; and
wheels disposed on the grader body assembly; and
the grader tray assembly comprising:
a grader tray frame;
a detachable mesh disposed on the grader tray frame to filter an input material;
an upper chute located on a first side of the grader tray assembly; and
a residual control gate located between the detachable mesh and the upper chute,
wherein:
the grader tray assembly is configured to be detachable from the grader body assembly,
the upper housing, the lower chute and the grader tray assembly are configured to provide an enclosed space to prevent emission of a filtered material, and
the portable particulate grader does not comprise an electrically-operated component.