Title:
【発明の名称】ハードトップ表面用の排液システム
Document Type and Number:
Japanese Patent JP2000511248
Kind Code:
A
Abstract:
A liquid drainage system for a hard-top surface (1), such as at an airport, harbour area and the like, comprises a gutter (3), which is provided in the said surface (1) and is connected to a sink hole (6, 7), from which the liquid can be drained via a sewer (8). A ball valve (16) is provided in the sink hole (6, 7), which ball valve comprises a valve as well as a ball body which floats in water and sinks in a lighter liquid, such as kerosine, so that the valve interacts in a sealing manner with an associated valve seat, which ball valve is located between the gutter (3) and the sewer (8).
Inventors:
Gielding Johannes Antonius Bernardes
Application Number:
JP54207897A
Publication Date:
August 29, 2000
Filing Date:
May 20, 1997
Export Citation:
Assignee:
N.V.Luxtaven Cifol
International Classes:
E03F5/042; E03F1/00; (IPC1-7): E03F1/00
Attorney, Agent or Firm:
Tetsuya Ito