Patent ID: 6789975
Filing Date: 2004-09-14
Classification: B43K

Abstract:
A reservoir pen comprising:a nib resiliently flexible between normal and deflected positions; a feed bar defining an ink channel; and a valve for controlling flow of ink from the ink channel to an underside of the nib, the valve including a valve seat defining an ink port in fluid communication with the ink channel, and a valve member having a sealing surface for engaging the valve seat ink port, wherein at least one of the valve seat and valve member resiliently engages the feed bar in an area bordering the ink port, thereby to generate a bias force urging the valve member sealing surface away from the valve seat ink port toward an open position when the nib is in the deflected position, the valve member further having a head positioned to engage the nib when the nib is in the normal position, wherein the nib urges the valve member against the biasing force, so that the valve member sealing surface engages the valve seat ink port.