Patent ID: 6213661
Filing Date: 2001-04-10
Classification: B43K

Abstract:
A retractable pen, comprising:a first tube;a second tube slidable relative to said first tube;a pen nib connectably retained by one of said first and second tubes; anda flexible membrane formed of a tube of resilient material and having a self-sealing passage therethrough, an outer surface of said flexible membrane being affixed to one of the tubes and an interior surface of said flexible membrane being coupled to said pen nib to allow a first end of the flexible membrane to be pulled into and substantially through the self-sealing passage, said flexible membrane being disposed in one of said first and second tubes and movable relative thereto, such that the pen nib may move into a first position whereby said pen nib is contained by a seal formed by said self-sealing passage, and may move into a second position whereby said pen nib is exposed and not contained by said seal.