Patent ID: 7296944
Filing Date: 2007-11-20
Classification: B43K

Abstract:
1. A handheld marking instrument, comprising: a substantially flat body comprising: a chamber in the intermediate layer, wherein the chamber extends through the intermediate layer from the inner surface of the top wall to the inner surface of the bottom wall of the substantially flat body, and wherein the chamber is configured to contain a marking substance within the substantially flat body; a marking device configured to deliver the marking substance to a desired surface during marking, wherein the marking device is in communication with the chamber to access the marking substance, and wherein the marking device is located at least partially within the edge of the substantially flat body; and at least one vent in fluid communication with the chamber, wherein the vent provides at least for equalization of pressure between the chamber and ambient air wherein the vent is open or semi-permeable and is located at a distance from the marking device.