Form-fitting, energy-absorbing material and method for making th

Details Form-fitting, energy-absorbing material and method for making th Form-fitting, energy-absorbing material and method for making th

1990-06-07

1991-10-15

Schroeder, Werner H.

Apparel

Guard or protector

For wearer's head

2417, 4283066, A42B 300

Patent

active

050561626

ABSTRACT:
A helmet system includes a helmet shell and an energy-absorbing helmet liner that is constructed from an open-cell urethane foam impregnated with a room-temperature curable thermoset epoxy. The impregnated foam liner is inserted in the helmet shell, heated until the liner becomes deformably plastic, and placed on the head of a user, permitting custom-fitting of the helmet system that conforms to the contours of the user's head. When cured by cooling, the liner assumes a rigid construction that, by custom-fitting, repeatably aligns the helmet shell to the head of the user, and is crushable to absorb energy.

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