Patent ID: 7156571

Claim:
A combination pen or pencil and circular marking implement, comprising: a cylindrical body having a first end and an opposite second writing and marking end; a passageway extending through the body from the first end to the second end capable of receiving therein ink pen cartridges or pencil leads both of whose tips extend through the passageway adjacent the second end for writing upon and marking unprinted and printed surfaces; an ink reservoir circumjacent the passageway at the second end; a cylindrical marking die cartridge circumjacent the ink reservoir at the second end; a circular marking die tip mounted to the cylindrical marking die cartridge adjacent the second end in flow communication with the ink reservoir and encompassing the passageway; a cylindrical tool gripping collar mounted to the implement body and encompassing the cylindrical marking die cartridge, the ink reservoir and the passageway adjacent the second end and capable of manual rotatation for advancing the circular marking die cartridge for encircling letters and numbers on the printed surface and for retracting the marking die cartridge so that the ink pen cartridges and pencil leads are used for marking and writing; and a pair of cylindrical cams with one cam attached to the tool gripping collar and the other cam attached to the marking die cartridge so that rotation of the tool gripping collar in one direction causes the cams to close together and withdraw the marking die cartridge and tip while rotation of the tool gripping collar in the other direction causes the cams to separate from each other thereby advancing the marking die cartridge and tip beyond the passageway at the second end so that the marking die cartridge and tip are exposed for making circular ink rings around words and letters on printed surfaces such as alphanumeric puzzles.