05156488 is referenced by 25 patents and cites 7 patents.

A conduit for dispersing or gathering liquids in the earth has an arch shape cross section and alternating peak and valley corrugations along its length. At one end of the conduit is a sub-arch for receiving a pipe. In one embodiment there is a discontinuous valley by the sub-arch and a continuous web on the peak corrugation near the sub-arch in combination with cantilevered legs. In another embodiment the web is discontinuous while the valley is continuous in the region of the sub-arch. Both essential constructions provide a strong joint when conduits are mated to each other and are buried in the earth and subjected to a load.

Title
Leaching system conduit with sub-arch
Application Number
341902
Publication Number
5156488
Application Date
May 2, 1991
Publication Date
October 20, 1992
Inventor
James M Nichols
Old Saybrook
CT, US
Agent
C G Nessler
Assignee
Infiltrator Systems
CT, US
IPC
E02B 13/00
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