Title:
エアレータ
Document Type and Number:
Japanese Patent JP2005523808
Kind Code:
A
Abstract:
The invention relates to an aerator consisting of a porous plastic moulded body with pores that are smaller on the air outflow side (A) than on the air inflow side (B) lying opposite. The inventive aerator is particularly suitable for use in sewage treatment plants.
Inventors:
Giangrasso, Antonio
Application Number:
JP2003587743A
Publication Date:
August 11, 2005
Filing Date:
July 26, 2002
Export Citation:
Assignee:
Frederer Infrastructural Technique GM Behr & CEO Carga
International Classes:
B01D39/16; C02F3/20; B01F23/00; (IPC1-7): C02F3/20
Domestic Patent References:
| JPS5730597A | 1982-02-18 | |||
| JPH06226248A | 1994-08-16 | |||
| JPH11347323A | 1999-12-21 | |||
| JPS5543521U | 1980-03-21 | |||
| JPS57148497U | 1982-09-17 | |||
| JPS57190697A | 1982-11-24 | |||
| JPH08309125A | 1996-11-26 | |||
| JPH0827303A | 1996-01-30 | |||
| JPS6015131A | 1985-01-25 | |||
| JPS61188130A | 1986-08-21 | |||
| JPH02289333A | 1990-11-29 |
Foreign References:
| US2297248A | 1942-09-29 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Junko Kobayashi
Norio Omori
Eiji Katayama
Junko Kobayashi
Norio Omori