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US 3,943,572 AGranted
Helmet retention system
AssigneeGentex Corporation
InventorJackson A. Aileo
Life of this patent
Estimating the term…
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AssigneeGentex Corporation
InventorJackson A. Aileo
Estimating the term…
A protective helmet having a rigid shell with a headband and crown suspension system and provided with readily adjustable sound-attenuating earcup assemblies, in which right and left hand flexible fabric earcup assembly supports are secured at locations adjacent to the upper ends thereof to the rigid shell for movement of the earcup assemblies carried thereby toward and away from the wearer's head, and in which an adjustable chin strap assembly, the ends of which are anchored to the rigid shell at locations below the points of attachment of the earcup supports to the shell, carries respective fastener elements adapted releasably to be engaged with fastener elements adjacent to the lower ends of the cup supports so that, when the chin strap is pulled to draw the helmet down firmly to engage the suspension with the wearer's head, the earcup assemblies are moved toward the wearer's head to cause the seals thereof firmly to engage the portions of the wearer's head around his ears. One or more pads of energy absorbing material are readily detachably and reattachably secured to the outer surface of the earcup supports and to the portion of the headband at the back of the wearer's head.
A helmet assembly including in combination, a rigid outer shell, respective left hand and right hand earcup assembly supports of flexible material, respective earcup assemblies carried by said supports, means for securing said supports adjacent to the upper ends thereof to said rigid outer shell at first locations thereon for movement of said earcup assemblies toward and away from the wearer's head, an adjustable chinstrap assembly, means for securing the ends of said chinstrap assembly to said rigid outer shell at second locations thereon below said first locations and means for connecting said chinstrap assembly at spaced locations intermediate the ends thereof to said earcup assembly supports adjacent to the lower ends thereof to move said earcup assemblies toward the wearer's head as said chinstrap assembly is actuated to hold said shell on the wearer's head.
A helmet assembly including in combination, a rigid shell having right and left portions adapted to overlie the ears of a wearer, a pair of earcup assembly supports of flexible material, respective earcup assemblies carried by said supports, means for securing the upper ends of said supports to said shell at respective locations above the right and left portions of said shell for movement of the assemblies carried thereby toward and away from the wearer's head, a chinstrap assembly having length adjusting means intermediate its ends, means for securing the respective chinstrap assembly ends to said rigid shell at locations lying relatively in the lower parts of said right and left shell portions, and respective means connecting said chinstrap assemblly at points between its ends and said length adjusting means to said earcup assembly supports adjacent to the lower ends thereof so that upon actuation of said length adjusting means to shorten said chinstrap assembly said earcup assemblies are moved into engagement with the wearer's head around his ears.
Dependencies are inferred from the claim text.