Patent ID: 7278720

Claim:
An ink cartridge comprising: a multi-chamber pen body; first and second chambers aligned along an axial length of the pen body wherein the first and second chambers are configured to respectively receive and store first and second different inks; a crown disposed on the body and configured to close and open top of the pen body and sealingly close and separate mouths of the first and second chambers, wherein the crown includes first and second ink delivery ports formed through the crown and separated along an axial length of the crown, and configured to transfer ink from the first and second channels formed in an upper side of the crown, the second channel being longer than the first channel, the first and second channels being configured to supply ink to the first and second chambers respectively and first and second ink flow regulators respectively supported on a lower side of the crown and configured to respectively extend into the first and second chambers and to regulate passage of ink through the first and second ink delivery ports in accordance with an amount of ink in the first and second chambers; wherein the first and second channels have portions thereof that run parallel one another and extend along opposite elongate edges of the crown; and a shroud formed at one end of the crown and configured to enclosed first and second hollow needle-like members configured to respectively receive ink from first and second conduits and to transfer ink to the first and second chambers via the first and second channels respectively.