Patent ID: 8016360

Claim:
An adjustable armrest assembly for a chair comprising: a mounting member connected to the chair, the mounting member having an upper base; a first horizontal slide element slidably mounted to the upper base, the first slide element being adjustably slidable in a horizontal first direction with respect to the upper base, and the first slide element being restrained after adjustment with respect to the upper base by frictional engagement between the upper base and the first slide element, the first slide element including an upper surface having first and second guide rails extending in a horizontal first arcuate path that crosses the first direction; and a second horizontal slide element for slidably mounting to the first slide element that is rotatable in a horizontal arcuate path that crosses the first direction and has a vertical axis of rotation that does not pass through the adjustable armrest assembly, the second slide element including a lower surface having first and second arcuate recesses for engaging the first and second guide rails of the upper surface of the first slide element, the second slide element restrained after adjustment with respect to the first slide element by frictional engagement between the second slide element and the first slide element.