Noise-protection elements of acrylic glass

US5040352A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Klaus Oberlander · San Jose, US
• Norbert Brand · Darmstadt, DE
• Kurt Kirdorf · Alzenau, DE
• Peter Seelmann
• Heinz Wachter · Ebergassing, AT

Key dates

• Filing date: Jul 10, 1990
• Grant date: Aug 20, 1991
• Expiry date: Jul 10, 2010

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E06B5/205
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Noise-abatement panels of acrylic glass are secured against fragmentation by plastic threads, plastic bands or a plastic net embedded in them approximately in the middle. If the acrylic glass breaks, the threads, bands or nets hold the fragments together.