Patent ID: 9447900
Filing Date: 2016-09-20
CPC Classification: F16C,F16L

Claim Text:
1. A pipe roller assembly comprising: a roller base; a lug, the lug defining a lug bore; a roller shaft mounted to the roller base on the lug through the lug bore, the roller shaft defining an outer shaft surface; a roller defining an outer roller surface and an inner bearing surface, the roller mounted on the roller shaft; and a non-conductive barrier mounted between the roller and the roller base, the non-conductive barrier electrically isolating the roller from the roller base thereby preventing any electric current from being conducted from the roller to the roller base, the non-conductive barrier comprising a bearing mounted between the roller and the roller shaft and a separation portion extending around the roller shaft and between the roller and the lug, the separation portion comprising a non-conductive material; wherein the bearing is a bushing, the bushing including an inner sliding layer and an outer backing layer, the inner sliding layer defining an inner bushing surface, the outer backing layer defining an outer bushing surface, the inner bushing surface contacting the outer shaft surface of the roller shaft, and the outer bushing surface contacting the inner bearing surface of the roller.