Energy absorbing impact barrier

Details Energy absorbing impact barrier Energy absorbing impact barrier

1980-01-22

1982-03-30

Chiesa, Richard L.

Brakes

Plastic deformation or breakage of retarder element

Crushable element

256 1, 256 131, F16F 712

Patent

active

043219896

ABSTRACT:
An impact attenuator for installation along highways particularly at exit lanes from limited access roads is disclosed. The impact attenuator features the use of one or a plurality of novel crash cushions formed of polyurethane foam having a structure therein to help maintain the integrity of structure. The reinforcement may be a wire basket disposed therein. The attenuator is a device having a plurality of telescoping crash sections that nest upon impact.

REFERENCES:
patent: 1922878 (1933-08-01), Boyle
patent: 3666055 (1972-05-01), Walker et al.
patent: 3674115 (1972-07-01), Young et al.
patent: 3842944 (1974-10-01), Shiotani et al.
patent: 3888502 (1975-06-01), Felzer et al.
patent: 3944187 (1976-03-01), Walker
patent: 3967704 (1976-07-01), Ogden
patent: 3982734 (1976-09-01), Walker
patent: 4101115 (1978-07-01), Meinzer
patent: 4138093 (1979-02-01), Meinzer
Hawley, G. G., The Condenser Chemical Dictionary, 8th Ed., Reinhold Co., Sep. 4, 1974, p. 844.

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