HELMET INCLUDING A PROTECTIVE SHELL WITH VARIABLE RIGIDITY
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United States of America Patent
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Issued Date -
Mar 10, 2011
app pub date -
Sep 7, 2010
filing date -
Sep 8, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a helmet including a protective shell. The protective shell includes an upper part and a lower part extending towards the bottom of the helmet. The upper part includes a sandwich composite material including two skins, disposed on either side of a core, themselves including a plurality of composite tissue layers, The lower part includes a monolithic composite material. The invention applies in a general manner to protective helmets and more particularly in the field of aeronautics where the rigid structure allows head equipment to be fixed directly onto the protective shell.
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