Patent ID: 7412914

Claim:
A writing device for imprinting Braille characters comprising: a hollow elongated barrel having a first end and an opposite end threaded at each end thereof and having a cylindrical passageway with a central axis extending therethrough; a one piece elongated stylus having a point at one end and a generally flat transverse surface at an opposite end thereof disposed in said passageway, said stylus having a first rear portion and a second forward portion of reduced diameter rearwardly of said point and forming a forward facing shoulder between said first rear portion and said second forward portion; said cylindrical passageway constructed and dimensioned to receive said stylus with a first portion in sliding contact therewith; a hollow elongated front member including a cylindrical passageway axially aligned with said central axis of said hollow barrel extending therethrough and a rearward facing shoulder, threaded onto a front portion of said hollow elongated barrel; a coil spring disposed around said second forward portion of said stylus between said forward facing shoulder of said stylus and said rearward facing shoulder in said front member for biasing said styluses into a recessed portion with said point encompassed in said front member; a rear member including a generally cylindrical hollow passageway axially aligned with said central axis extending through said rear member threaded onto a rear portion of said barrel; an activating member including a radially and outwardly extending flange extending outwardly from the outer surface of said cylindrical activating member and forming a forwardly facing shoulder; a base formed on said opposite end of said elongated barrel surrounding said cylindrical passageway; and a second spring disposed around a forward portion of said activating member and between said forwardly facing shoulder on said activating member and said base for biasing said activating member away from said opposite end of said barrel in a direction away from said point of said stylus allowing said stylus to be fully retracted with said point surrounded by said forward member.