Patent ID: 7147392
Filing Date: 2006-12-12
Classification: B43K,B43L,B43M

Abstract:
1. A writing instrument having a proximal end and a distal end, said writing instrument comprising: an outer barrel having an open distal end at said distal end of said writing instrument and a proximal end at said proximal end of said writing instrument; an inner writing element having a first writing tip and a first writing medium reservoir; and an outer writing element having a second writing tip and a second writing medium reservoir; wherein: said inner and outer writing elements are positioned in an inner axial passage extending through said second writing tip and said second writing medium reservoir; said inner writing element is positioned in said inner axial passage through said second writing tip and said second writing medium reservoir; said first writing tip is in direct operative contact with said first writing medium reservoir; said second writing tip is in direct operative contact with said second writing medium reservoir; and said outer writing element is movable with respect to said outer barrel.