Patent ID: 7413363

Claim:
A pen, including: a marking device operable to mark a visible path onto a surface, the marking device being electronically controllable; a non-marking stylus nib; a capping device for capping the marking device when not in operation; and a switch activated by sensing a compression force of the pen onto the surface; wherein the capping device is configured to uncap the marking device, through the compression of the pen onto the surface, and the marking device is configured to operate, through the activation of the switch, to enable a user to use the pen to mark a visible path on the surface, and the capping device is a rotary capper having an arm engaged with a slot of the stylus nib, the engagement of the arm and slot being configured to cause rotation of the rotary capper between capped and uncapped positions on the marking device through compression of the stylus nib onto the surface.