Elongated, bendable drainage mat having a rectangular transverse cross section and comprising a polymeric core having a plurality of substantially rigid fingers extending from one side of a layer and an enveloping water permeable fabric having a permittivity from 0.2 s<-><1> to 2.0 s<-><1> and a dynamic permeability after 10<6> loadings of at least 10<-><4>cm/s. Apparatus and systems using such drainage mat.
申请公布号
DE3484601(D1)
申请公布日期
1991.06.20
申请号
DE19843484601
申请日期
1984.03.29
申请人
MONSANTO CO., ST. LOUIS, MO., US
发明人
DEMPSEY, BARRY JOSEPH, WHITE HEATH ILLINOIS 61884, US;LIU, KEH-CHANG, PENSACOLA FLORIDA 32504, US;MANTARRO, JOSEPH, PENSACOLA,FLORIDA 32503, US