Sound barrier for highway and other traffic

Details Sound barrier for highway and other traffic Sound barrier for highway and other traffic

1980-01-22

1982-11-09

Kee Chi, James

Fences

Highway guard

256 1, 52144, 181210, 404 6, E01F 1500, B64F 126

Patent

active

043580904

ABSTRACT:
A combined road and sound barrier has its upper and lower portions formed as hollow profiles filled with synthetic resin foam.

REFERENCES:
patent: 3114303 (1963-12-01), Oberbach
patent: 3630310 (1971-12-01), Federer
patent: 3704861 (1972-12-01), Glaesener
patent: 3783968 (1974-01-01), Derry
patent: 3963218 (1976-06-01), Glaesener
patent: 3966173 (1976-06-01), Glaesener
patent: 3983956 (1976-10-01), Manhart
patent: 4042061 (1977-08-01), Murakami
patent: 4214411 (1980-07-01), Pickett

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