Abstract: A writing instrument includes a nose section that is releasably connected to a barrel housing portion that contains an ink reservoir, in the form of a replaceable cartridge, for holding ink for delivery to a writing nib. The nose section is releasably connected to the barrel housing portion with a magnetic-mechanical connection assembly to allow easy access to the replaceable cartridge.

Abstract: A writing instrument includes a nose section that is connected to a barrel housing portion that contains an ink reservoir for holding ink for delivery to a writing nib. A cap may be releasably secured to the nose section with a magnetic-mechanical connection assembly to cover the nib to protect the nib from damage and to prevent ink evaporation.

Abstract: A writing instrument includes a nose section that is connected to a barrel housing portion that contains an ink reservoir for holding ink for delivery to a writing nib. A cap may be releasably secured to the barrel housing portion with a first magnetic-mechanical connection assembly to cover the nib to protect the nib from damage and to prevent ink evaporation. Similarly, the nose section may be releasably secured to the barrel housing portion with a second magnetic-mechanical connection assembly for accessing a replaceable ink cartridge that includes the ink reservoir.

Abstract: A refillable reservoir, particularly an ink converter for a fountain pen, has a cylinder in which a piston is slidable, and an actuating device for displacing the piston for refilling the ink chamber. Without needing to be detached from the piston, the actuating device can be stored substantially within the length of the chamber. The actuating device can be a rod which is disengageable from and slidable through the piston. Alternatively the actuating device can be a flexible ribbon coupled to a sleeve slidably mounted on the cylinder.

Abstract: A marking insturment having a fluid reservoir (1) and an application tip. A valve (7, 12, 18) controls flow of fluid from the reservoir (1) to the tip. A transfer chamber (21) is located between the reservoir and tip and is assocaited with the reserovir housing (1) in said manner as to be reduceable in volume.