Patent Number: 6,254,297

Title: Marker pen devices

Abstract: Marker pen devices for dispensing moisture sensitive or volatile liquids, which include an outer tube open at one end, of rigid plastic or aluminum with a sealed glass ampoule inside the tube which has liquid therein to be dispensed which may contain a metallic glass ball for mixing and/or breaking the ampoule for freeing the liquid, for dispensing through a spring action nib valve, which closes off the open end of the tube, and in an alternate embodiment may have an externally mounted slide ring activator to distort said tube and crush the ampoule.

Inventors: Frazier; Thomas G. (Doylestown, PA)

Assignee:

International Classification: B43K 5/18 (20060101); B43K 29/18 (20060101); B43K 5/00 (20060101); B43K 5/14 (20060101); B43K 29/00 (20060101); B43K 005/14 ()

Expiration Date: 07/03/2018