Invention Grant
US07680439B2 Interference fit sleeved foam charge rolls and composite materials 有权
干燥配套袖口泡沫充填辊和复合材料

Interference fit sleeved foam charge rolls and composite materials
Abstract:
The present invention is generally directed to composite materials or charge rolls comprising a sleeved foam charge roll where the sleeve is interference-fit over the foam core, and methods of constructing them. The foam core can be made with an outer diameter larger than that of the sleeve inner diameter. The sleeve can be interference fit over the foam core to provide a functional charge roll. In some embodiments the charge roll can be used in an image forming apparatus including, but not limited to, an electrophotography system, an electrophotographic copying machine, and a laser printer.
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