Patent ID: 7530639

Claim:
A chair comprising: a base; a seating structure rotatably coupled to the base about a vertical axis and independently vertically moveable between at least a first position and a second position, wherein the seating structure is rotatable about the vertical axis independent of any vertical movement of the seating structure between the first and second positions; a foot support disposed a vertical distance from the seating structure and rotatably coupled to the seating structure and non-rotatably coupled to the base, wherein the foot support is vertically moveable relative to the base free of any rotation about the vertical axis relative to the base, wherein the base comprises a support column with an upper portion coupled to the seating structure and rotationally coupled to the foot support, wherein the foot support and the upper portion of the support column move vertically with the seating structure when the seating structure is moved between the first position and the second position; and a control mechanism operably coupled to the foot support for adjusting the vertical distance between the foot support and the seating structure without rotating the seating structure, the control mechanism comprising a control handle operably coupled to the seating structure such that the control handle rotates with the seating structure while the foot support remains non-rotatably stationary when the seating structure is rotated, and wherein the control handle moves vertically with the seating structure when the seating structure is vertically moved between the first position and the second position.