Patent ID: 9113672
Filing Date: 2015-08-25
Classification: A42B

Abstract:
1. A protective helmet to be worn on the head of a person, the protective helmet comprising: a rigid outer shell defining an interior chamber; and a controlled air dissipation (CAD) assembly removeably installed within said interior chamber of said outer shell, said CAD assembly including a primary bellows unit, a secondary bellows unit, and an inner shell liner disposed between said primary and secondary bellows units, said primary bellows unit being mounted to an outer surface of said inner shell liner and extending toward an inner surface of said outer shell, said primary bellows unit including a plurality of primary bellows chambers which are each interconnected to at least one other primary bellows chamber by a primary air channel to facilitate air transfer between adjacent primary bellows chambers, said secondary bellows unit being mounted to an inner surface of said inner shell liner and extending toward the head of the person wearing the protective helmet, said secondary bellows unit including a plurality of secondary bellows chambers which are each interconnected to at least one other secondary bellows chamber by a secondary air channel to facilitate air transfer between adjacent secondary bellows chambers, said inner shell liner including a plurality of air transfer holes arranged to facilitate the transfer of air between a corresponding pair of primary and secondary bellows chambers, and wherein said primary bellows unit includes a primary base section mounted to said outer surface of said inner shell liner, a plurality of first stage pad sections extending from said primary base section toward said inner surface of said outer shell and which define said primary bellows chambers therein, and a plurality of first bridge sections interconnecting adjacent first stage pad sections and which define said primary air channels.