Energy absorbing pneumatic crash cushion

Details Energy absorbing pneumatic crash cushion Energy absorbing pneumatic crash cushion

1985-11-19

1987-06-23

Novosad, Stephen J.

Road structure, process, or apparatus

Traffic steering device or barrier

256 131, 267116, 267122, 293110, E01F 1500

Patent

active

046749110

ABSTRACT:
A reusable energy absorbing apparatus comprising a plurality of air chambers and valve members. The air chambers and valves are constructed so that the valve members close upon the application of an axial force, thereby sealing air within the air chambers. After the energy absorbing apparatus has reached the end of its compressive stroke, the valve members release sequentially, thereby venting the pressurized air in the air chambers to minimize rebound.

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