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Paul B Mattes: Replaceable cushion liner for military headgear. Varo, Jerry W Mills, Roger N Chauza, August 30, 1988: US04766610 (27 worldwide citation)

A headgear cushion (18) having a closed-cell foam core coated with a non-allergenic vinyl/nitrile composition. A powdered carbon is mixed with the vinyl/nitrile composition to provide a dark color. Pressure responsive material (28, 30) is adhered to the coated foam core (20, 26) and made removably a ...


2
BRAIN-PROTECTING HELMET LINING APPARATUS AND METHOD. April 12, 2018: US20180098594-A1

A brain-protecting helmet lining apparatus and method providing pad liners made of a viscoelastic material which deforms in a time-dependent and nonlinear way, and has a capability of storing strain energy when deformed, while dissipating some energy through hysteresis, where, in use, the viscoelast ...