US Patent 7131688 Adjustable armchair mouse tray

The present invention discloses a multi-functional adjustable mouse tray that mounts on the arm of a chair to provide a comfortably accessible work surface to support and use a computer mouse and other devices. The adjustable tray is easily mounted to either arm of a chair and provides width, length, rotation and storage adjustments. The adjustable tray includes a platform and is pivotally connected to an armchair attachment body. The armchair attachment body includes an armchair stop pivotally connected to the platform, parallel guides that are adjustably attached to the armchair stop, and at least one compression element for securing the parallel guides against the chair arm.