Patent ID: 8166901

Claim:
A roller assembly for use with a dock positioned near a piling, the dock defining a dock plane, the roller assembly comprising: a spring biased bracket having a medial portion, a first distal portion and an opposing second distal portion, the first distal portion defining a first distal end and the second distal portion defining a second distal end, the medial portion being engageable with the dock, the first distal portion and second distal portion being disposed on opposing sides of the dock plane when the medial portion is engaged to the dock, each distal portion being moveable relative to the medial portion in a direction substantially parallel to the dock plane; an upper sliding member connected to the first distal portion and engageable with the piling; and a lower sliding member connected to the second distal portion and engageable with the piling, the upper sliding member and lower sliding member disposed on opposing sides of the dock plane when the spring biased bracket is engaged with the dock.