Elevated rail transit guideway with noise attenuators

Details Elevated rail transit guideway with noise attenuators Elevated rail transit guideway with noise attenuators

1977-04-07

1979-03-06

Werner, Frank E.

Railways

Elevated structure

14 1, 104 1R, 181210, 404 1, E01B 1900

Patent

active

041424689

ABSTRACT:
An elevated dual-rail transit guideway in which the structural spanning members are shaped so as to serve also as baffles for suppressing the propagation of noise into the surroundings. The interior surface of the baffles may be treated with sound absorbing material to further improve their effectiveness.

REFERENCES:
patent: 221450 (1879-11-01), Dodson
patent: 250220 (1881-11-01), Dodson
patent: 785247 (1905-03-01), Wood
patent: 937338 (1909-10-01), Strauss
patent: 2225186 (1940-12-01), Sorensen
patent: 3212453 (1965-10-01), Lich
patent: 3540068 (1970-11-01), Bouthors
patent: 3561364 (1971-02-01), Giraud
patent: 3772993 (1973-11-01), Noble et al.
patent: 3859682 (1975-01-01), Sulkiewicz
patent: 4037541 (1977-07-01), Giessler et al.
patent: 4050538 (1977-09-01), Desenfant

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