Patent ID: 7182403

Claim:
A chair comprising: a base assembly; a seat frame located above the base assembly; a seat attached to the seat frame; a seat back connected to the seat frame; and an arm rest attached to the seat frame, the arm rest comprising: a top support frame including a first end, a second end and a top surface extending between the first end and the second end; a mounting block pivotally attached to one of the first end and the second end; a bottom support frame being substantially horizontal and separated from the top support frame; a guide slot attached to the bottom support frame; a support bracket including an upper end engaged with the mounting block, and a lower end engaged with the bottom support frame; a dampener coupled with the support bracket; and a positioning member extending from the top support frame, the positioning member including a guide pin configured to travel in the guide slot, wherein the mounting block pivots relative to the top surface of the top support frame according to an orientation of the guide pin in the guide slot.