Patent ID: 7481589
Filing Date: 2009-01-27
Classification: B41J

Abstract:
1. A Braille writing instrument comprising: a housing having a first end and a second end, extending in a first direction; six plungers positioned near the first end, arranged in a first column of three plungers and a second column of three plungers, wherein the first and second columns are adjacent to one another to define three rows of plungers with each row having two plungers, wherein each plunger is movable in the first direction between a stored position and a write position; six styluses positioned near the second end, arranged in a first column of three styluses and a second column of three styluses, wherein the first and second columns are adjacent to one another to define three rows of styluses with each row having two styluses, wherein each stylus is movable in the first direction between a retracted position and an extended position, wherein styluses in the first column are substantially collinear with the plungers in the first column, and styluses in the second column are substantially collinear with the plungers on the second column; means for connecting each plunger in the first column to a stylus in the second column in the same row, and each plunger in the second column to a stylus in the first column in the same row, wherein each movement of a plunger from the stored position to the write position causes its connected stylus to move from the refracted position to the extended position; a stop member connected to each stylus, protruding in a direction substantially perpendicular to the first direction; and a release member, having a one way flexible membrane, flexible in the first direction, wherein each stylus in the retracted position is positioned to a first side of the flexible membrane, and in the extended position abuts the flexible membrane to a second side of the flexible membrane, wherein the first side is interior to the second side.