Patent ID: 7222831

Claim:
An adjustable display arm for positioning a device in a plurality of positions, said display arm comprising an elongated outer housing; an elongated inner housing telescopically engaged within said outer housing; a biasing member coupled with said outer housing and operative to counter-balance said inner housing within said outer housing; and a locking mechanism for locking the position of said inner housing relative to said outer housing, wherein said locking mechanism comprises a first locking vane and a second locking vane, each locking vane having a sloped surface abutting an edge of said inner housing and a second surface abutting an interior surface of said outer housing; wherein said sloped surfaces initiate spreading of said locking vanes when said locking vanes are pulled into an extended position by said locking mechanism such that said second surfaces engage the interior surface of said outer housing with sufficient force to prevent movement of said inner housing relative to said outer housing.