Noise silencer for use in joint gap in highway

Details Noise silencer for use in joint gap in highway Noise silencer for use in joint gap in highway

1988-09-21

1989-05-30

Fuller, B. R.

Acoustics

Sound-modifying means

Sound absorbing fence or screen

181284, 181288, 181290, 181294, E04B 182

Patent

active

048342130

ABSTRACT:
A noise silencer for highway is adapted to be stuffed in a joint gap formed in a highway. It has a rectangular casing and padding enclosed in the casing. The casing is provided with a vent hole adapted to be closed by a plug. Before mounting the noise silencer, air is firstly sucked out from the silencer through the vent hole to flatten the padding and the vent hole is plugged. After the silencer has been mounted, the vent hole is open to inflate the padding so that the silencer will be pressed against the opposite walls of the joint gap.

REFERENCES:
patent: 2401906 (1946-06-01), Burnett et al.
patent: 3983956 (1976-10-01), Manhurt
patent: 4274506 (1981-06-01), Blomgoon et al.
patent: 4330046 (1982-05-01), Lerner et al.

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