Spare bottle for an ink refilling of piston-type fountain pens or of writing implements fitted with an ink reservoir and an ink conducting system

A spare bottle for ink refilling of piston-type fountain pens having an ink reservoir, a terminal section, and an ink conducting system communicating the terminal section with the ink reservoir, said spare bottle comprising:

• a refilling container formed of low-density polyethylene and having a neck;
• an attachment having a docking section for receiving the terminal section of a fountain pen and a collar section for sealingly engaging said neck, at least one of said collar section and said neck having a lead for providing a seal therebetween;
• cap means for closing said spare bottle and including a cap portion sealingly enclosing said attachment and means for securing said cap portion on said attachment;
• and
• at least one interchangeable adapter receivable in said docking section of said attachment for accommodating a different geometry of one of the terminal portion of an fountain pen and refilling cartridge of the fountain pen, said at least one interchangeable adapter having a sealing lip for sealingly engaging the one of the terminal portion of the fountain pen and a refilling cartridge of the fountain pen.

A spare bottle for ink refilling of piston-type fountain pens having an ink reservoir, a terminal section, and an ink conducting system communicating the terminal section with the ink reservoir, said spare bottle comprising:

• a refilling container formed of low-density polyethylene and having a neck;
• an attachment having a docking section for receiving the terminal section of a fountain pen and a collar section for sealingly engaging said neck, at least one of said collar section and said neck having a bead for providing a seal therebetween;
• and
• cap means for closing said spare bottle and including a cap portion sealingly enclosing said attachment and means for securing said cap portion on said attachment;
• wherein said securing means comprises a center pin sealingly engaging an inner surface of said attachment in a closed position of said sealing bottle;
• and
• wherein said docking section comprises a cylindrical portion having a conical inner surface, said center pin defining, together with a wall of said cap portion a recess, said cylindrical portion of said docking section extending into said recess, with outer and inner surfaces of said cylindrical section sealingly engaging respective surfaces of said center pin and said wall of said cap portion.

A spare bottle for ink refilling of piston-type fountain pens having an ink reservoir, a terminal section, and an ink conducting system communicating the terminal section with the ink reservoir, said spare bottle comprising:

• a refilling container formed a of low-density polyethylene and having a neck;
• an attachment having a docking section for receiving the terminal section of a fountain pen and a collar section for sealingly engaging said neck, at least one of said collar section and said neck having a lead for providing a seal therebetween;
• and
• cap means for closing said spare bottle and including a cap portion sealingly enclosing said attachment and means for securing said cap portion on said attachment;
• wherein said cap portion is formed of internal and external cap parts, with the internal cap part having a portion remote from said docking section and having a pipette tip shape;
• wherein said internal cap part has a lower portion lockingly engaging a wall of said docking section;
• and
• wherein said lower portion has snap means for snappingly engaging said docking section.

A spare bottle for ink refilling of piston-type fountain pens having an ink reservoir, a terminal section, and an ink conducting system communicating the terminal section with the ink reservoir, said spare bottle comprising:

• a refilling container formed a low-density polyethylene and having a neck;
• an attachment having a docking section for receiving the terminal section of a fountain pen and collar section for sealingly engaging said neck, at least one of said collar section and said neck having a bead for providing a seal therebetween;
• and
• cap means for closing said spare bottle and including a cap portion sealingly enclosing said attachment and means for securing said cap portion on said attachment;
• wherein said securing means comprises a center pin sealingly engaging an inner surface of said attachment in a closed position of said sealing bottle, and
• wherein said collar section of said attachment has a radial collar located inside said neck and having a central opening, and said center pin has a bottom lying on said collar for closing said central opening.