WRITING INSTRUMENT WITH CARTRIDGE SPACING ELEMENT

摘要

An improvement for a writing instrument (10) consists of an elastomer spacing element (32) disposed within the interior (16) of the writing instrument (10). The improved writing instrument (10) accepts ink cartridges (18) that are within a range of lengths. Relatively short cartridges (18) are held in place, and prevented from independent movement by the spacing element (32). Conversely, relatively lengthy ink cartridges (18) cause the spacing element (32) to be compressed.