Conveyors: power-driven – Conveyor section – Endless conveyor
Reexamination Certificate
2006-06-08
2009-11-10
Crawford, Gene (Department: 3651)
Conveyors: power-driven
Conveyor section
Endless conveyor
C198S820000, C198S821000, C198S822000, C198S823000
Reexamination Certificate
active
07614494
ABSTRACT:
An improved trough roller assembly for use in a continuous belt conveyor system comprises a pair of shafts disposed in a generally x-shaped configuration to support the moving belt in the upper flight section of the conveyor system and define the desired trough shape for carrying bulk materials thereon. The ends of the shafts, which are preferably made out of cold-rolled steel, rotatably connect to bearing assemblies that are cooperatively positioned on or in a pair of spaced apart support members that are mounted in a generally upright position on a frame member of the conveyor system. The bearing assemblies have a sealed bearing to reduce the likelihood of clogging or other damage from dust, bulk material or other debris that may be present. In an alternative embodiment, the support members are telescoping to allow the user to selectively change the trough shape.
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Crawford Gene
Nicholson, III Leslie A
Ryan Richard A.
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