Patent Number: 6,253,928

Title: Grain grader

Abstract: In a preferred embodiment of the invention, a grain grader has an improved cleaning system utilizing cascades of rollers swingably engaged with a grading cylinder. In a preferred embodiment, a multiple axle roller assembly for dislodging clogged grain in the apertures is suspended from above the cylinder with multiple the rollers swingable in a downward arc to engage the cylinder. Such roller assembly may include a lifting mechanism to raise and lower the assembly for selective engagement with the rotating trammel and to facilitate removal and insertion of cylinders. The roller assembly has a plurality of stages to effectively provide unclogging action without gaps across the entire width of the trammel.

Inventors: Weber; Joseph A. (Frisco, TX)

Assignee: Gustafson, LLC

International Classification: B07B 1/22 (20060101); B07B 1/50 (20060101); B07B 1/18 (20060101); B07B 1/46 (20060101); B07B 001/50 (); B07B 013/04 ()

Expiration Date: 07/03/2018