Conveyors: power-driven – Conveyor section – Endless conveyor
Reexamination Certificate
2007-08-10
2010-10-19
Deuble, Mark A (Department: 3651)
Conveyors: power-driven
Conveyor section
Endless conveyor
Reexamination Certificate
active
07815043
ABSTRACT:
In improved reinforced conveyor belt structure is disclosed having a segmented reinforcing structure for enabling enhanced in-plane expansion of the belt under conditions of extreme in-plane experienced during operation. The belt comprises at least one elastomer layer and at least one reinforcing layer. The reinforcing layer may comprise a continuous strip disposed along the longitudinal center line of the conveyor belt. A series of laterally-extending reinforcing strips are disposed on either side of the center strip, radiating outward toward respective edges of the belt. These laterally-extending strips are spaced apart from one another to form a series of flexibility enhancing gaps therebetween, thus enabling the belt to elongate at its edges without undue restraint from the reinforcing layer. The laterally-extending strips may be oriented perpendicular to the center strip, or they may be oriented at oblique angles with respect to the center strip. The reinforcing layer may comprise one or more plies. Additional light-weight layers of reinforcing material may be provided between the reinforcing layer and the elastomer layer in order to enhance the structural integrity of the belt. In one embodiment, these light-weight reinforcing layers are continuous sheets of non-segmented reinforcing material which extend across substantially the entire width of the belt. Additional layers of elastomer material may be disposed between the reinforcing layer and the light-weight layers.
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Brown Arthur B.
Hawkins John
Normanton Geoff
Deuble Mark A
Fenner Dunlop Americas, Inc.
Shumaker, Loop & Kendrick LLP
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