US Patent 6966075 Adjustable helmets
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Patent abstract
The invention relates to an adjustable helmet comprising a first and second shell portion adjustably connected together. Each shell features a smooth interference-free sliding surface on which the two shells fit together in an overlapping relationship. The two shells are locked together by a manually operable locking device adapted to engage corresponding anchoring holes. The smooth interference-free sliding surfaces allows easy adjustment of the helmet size.
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Patent Inventor Names
Bertrand Racine0
Date of Patent
November 22, 2005
0Patent Application Number
103117900
Date Filed
September 25, 2002
0Patent Primary Examiner
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US Patent 6966075 Adjustable helmets
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