Noise barrier
AssigneeCyclops Corporation
InventorsPatrick D. McKeown, Jack W. Neiger
Life of this patent
Estimating the term…
Abstract
A noise barrier system having support members and noise absorbing panels is disclosed. The noise absorbing panels include a front corrugated perforated sheet and a rear corrugated solid sheet which define a chamber. A central sinusoidally corrugated perforated sheet is provided within the chamber. A first blanket of low frequency noise absorbing material is disposed adjacent the front face of the central member and is configured so that a resonance zone is provided between the first blanket and the rear surface of the front sheet. A second blanket of higher frequency sound absorbing material is provided between the rear surface of the central member and the front surface of the rear sheet.
Claims22
A noise barrier panel for the abatement of noise from a noise source, comprising:
- a. a perforated front sheet forming the front outer wall of the panel, said front sheet having a front surface in facing relation to said noise source and a rear surface;
- b. a nonperforated rear sheet forming the rear outer wall of the panel and held in spaced, noncontacting relationship to the front sheet so as to define a chamber therebetween, said rear sheet having a front side in facing relation to said noise source and a rear side;
- c. a central, perforated corrugated sheet element disposed in said chamber, said central element having a front face in facing relation to said noise source and a rear face;
- d. a first noise absorbing blanket of material disposed between the rear surface of said front sheet and the front face of said central sheet;
- and
- e. a second noise absorbing material disposed between the rear face of said central sheet and the front side of said rear sheet.
A noise barrier assembly for the abatement of noise from a noise source, comprising:
- a. a plurality of vertical posts adapted to be mounted in spaced parallel relationship, the posts each having vertical grooves facing an adjacent post;
- b. a plurality of noise barrier panels disposed between the grooves in adjacent posts, each noise barrier panel comprising:
- (1) a perforated front sheet forming the front outer wall of the panel, said front sheet having a front surface in facing relation to said noise source and a rear surface;
- (2) a nonperforated rear sheet forming the rear outer wall of the panel and held in spaced, noncontacting relationship to the front sheet so as to define a chamber therebetween, said rear sheet having a front side in facing relation to said noise source and a rear side;
- (3) a central, perforated corrugated sheet element disposed in said chamber, said central element having a front face in facing relation to said noise source and a rear face;
- (4) a first noise absorbing blanket of material disposed between the rear surface of said front sheet and the front face of said central sheet;
- and
- (5) a second noise absorbing blanket of material disposed between the rear face of said central sheet and the front side of said rear sheet.
Dependencies are inferred from the claim text.