Vehicle retardation

Details Vehicle retardation Vehicle retardation

1974-03-19

1976-09-21

Lusignan, Michael R.

Road structure, process, or apparatus

Miscellaneous road structure

260 25F, 427407, 428218, 428315, 428524, E01C 700, C08J 900

Patent

active

039816028

ABSTRACT:
A vehicle deceleration bed comprises two portions of a cured non-resilient aminoplast resin foam material, the density and/or the compressive strength of the foam in one portion being different from that of the other portion. Preferably the portions are arranged in layers and in the case of an aircraft deceleration bed, the lowermost layer is the strongest, each such successive layer being of progressively lower strength.

REFERENCES:
patent: 3511689 (1970-05-01), Winkler

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