Interference noise-control unit
AssigneeWavebreaker AB
InventorTony JOHANSSON
Life of this patent
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Abstract
The present inventive concept relates to an interference noise-control unit, for installation on a sound arresting wall for reducing noise from trains or cars. The interference noise-control unit comprises: a housing to be secured on a sound arresting wall. The housing comprises a hollow compartment comprising at least one first channel and at least one second channel, wherein the first channel has a first channel height A and a first channel length B, and wherein the second channel has a second channel height A′ and a second channel length B′, and wherein the first channel height A is different from the second channel height A′.
Claims14
An interference noise-control unit, for installation on a sound arresting wall for reducing noise from trains, comprising:
- a housing to be secured on a sound arresting wall, wherein the housing comprises a hollow compartment comprising at least one first channel and at least one second channel, wherein
- said first channel has a first channel height A and a first channel length B, and wherein
- said second channel has a second channel height A′ and a second channel length B′, and wherein said first channel height A is different from said second channel height A′.
A process for making an interference noise-control unit, comprising the steps of:
- extruding a case,
- injection moulding an insert,
- mounting said case on a sound arresting wall, and
- mounting said insert to said case.
Dependencies are inferred from the claim text.