Writing device for imprinting Braille characters

Details Writing device for imprinting Braille characters Writing device for imprinting Braille characters

2006-02-24

2008-08-19

Shakeri, Hadi (Department: 3723)

Tools

Stylus

C030S366000

Reexamination Certificate

active

07412914

ABSTRACT:
A writing device for imprinting Braille characters on an underlined sheet of paper includes an outer barrel and a spring biased receptacle stylus together with a spring biased activating member at an opposite end of the barrel. The stylus includes a rear portion and a forward portion of reduced diameter and a point. A forward member is threadedly attached to the barrel and includes a rearward facing shoulder. A first spring is disposed around the forward portion of the stylus, against a shoulder formed by the reduced diameter of the forward portion and the rearward facing shoulder on the forward member. A second spring is disposed at a opposite end of the barrel between a forward facing shoulder on the activating member and a base portion of the barrel for moving the stylus out of said barrel to form a portion of a Braille character.

REFERENCES:
patent: 199060 (1878-01-01), Giutmann
patent: 2602360 (1952-07-01), Berninger
patent: 2622561 (1952-12-01), Baker
patent: 3382577 (1968-05-01), Rieder
patent: 4316326 (1982-02-01), Yeaton et al.
patent: 6684514 (2004-02-01), Welch
patent: 2007/0107237 (2007-05-01), Long

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