Spine board
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United States of America Patent
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Sep 14, 1999
Grant Date -
N/A
app pub date -
Dec 24, 1996
filing date -
Dec 24, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A spine board having internal stiffening elements mechanically connected to an outer shell via a number of speed pins. A quantity of urethane foam fills the spaces between the stiffening elements and the shell. The speed pins permit the rotational molding of the shell about a pair of graphite reinforcing tubes, which better distributes the loads to be born among the outer shell, urethane filler, and stiffening elements, thereby increasing the life span of the board.
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Family
International Classification(s)
Cited Art Landscape
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