Patent ID: 8720838

Claim:
An extension arm for supporting an object, the extension arm comprising: an articulating portion, the articulating portion being comprised of upper and lower channel members that remain parallel to each other as an angular position of the articulating portion is adjusted, a base member that is releasably connectable to a support surface; an endcap that surrounds the base member, the endcap containing a spring therein, the spring having a central cavity located interior to a coiled portion thereof; a pivoting member attached to the arm, the pivoting member adapted to rotate with the articulating portion within the endcap as the angular position of the articulating portion is adjusted, the pivoting member located exterior to and on a first side of the central cavity; and a rigid element that runs through the central cavity, wherein a first end of the rigid element located exterior to and on the first side of the central cavity is manipulated by movement of the pivoting member, and a second end of the rigid element is attached to the endcap approximately at or exterior to a second side of the central cavity, wherein the rigid element is a bicycle-style chain.