Patent ID: 7461825

Claim:
A tray support arm assembly comprising: a tray assembly, said tray assembly including a lockable tray joint enabling the rotation of said tray assembly about a vertical axis; a lockable wrist joint connected to said tray assembly enabling the rotation of said tray assembly about a horizontal axis; a lower arm assembly connected to said lockable wrist joint; a lockable elbow joint connected to said lower arm assembly enabling the rotation of said lower arm assembly about a vertical axis; an upper arm assembly connected to said lockable elbow joint; a lockable shoulder joint connected to said upper arm assembly enabling the rotation of said upper arm assembly about a vertical axis and a horizontal axis; a locking handle attached to said tray for unlocking said lockable tray joint, said lockable elbow joint and said lockable shoulder joint; a tray tilt control for unlocking said lockable wrist in said tray assembly; whereby the tray assembly may be oriented in a substantially horizontal orientation for use and a substantially vertical orientation for storage.