Gulley closure

US4988234A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hanno Henkel · Krefeld, DE
• Karl-Heinz Rudolph · Bottrop, DE
• Friedhelm Sahlmen · Moers, DE
• Rolf Brockmann · Bensberg, DE

Key dates

• Filing date: Jun 27, 1989
• Grant date: Jan 29, 1991
• Expiry date: Jun 27, 2009

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E03F7/02
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The gully closure for preventing the pollution of bodies of water in accident situations consists of a flexible mat (1) which covers the gulley surface and is coated with a highly viscous, free-flowing moulding composition (2). A plastically deformable silicone gel has proved particularly successful as a free-flowing moulding composition (2).