Education and demonstration – Communication aids for the handicapped
Reexamination Certificate
2005-06-07
2005-06-07
Fernstrom, Kurt (Department: 3712)
Education and demonstration
Communication aids for the handicapped
C434S114000, C340S407100
Reexamination Certificate
active
06902403
ABSTRACT:
A Braille pin has three parts sharing a common longitudinal axis. A first part has a first breath and includes a rounded tip felt by a user. A second part has a noncircular transverse cross-section and has a breadth greater than the first breadth. A first shoulder is formed by the juncture of the first and second parts. A third part has a third breadth less than the second breadth. A second shoulder is formed at the juncture of the second and third parts. A pinhole has first, second, and third sections that respectively receive the first, second and third parts of the pin. The first shoulder limits upward pin travel by abutting an overhang at the juncture of the first and second pinhole sections. The second shoulder limits downward pin travel by abutting a step at the juncture of the second and third pinhole sections.
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Fernstrom Kurt
Freedom Scientific Inc.
Smith Ronald E.
Smith & Hopen , P.A.
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