Arrangement for draining liquid collecting on a ground surface

Details Arrangement for draining liquid collecting on a ground surface Arrangement for draining liquid collecting on a ground surface

1988-09-28

1990-03-20

Taylor, Dennis L.

Hydraulic and earth engineering

Drainage or irrigation

405 52, 404 2, E02B 1300

Patent

active

049096648

ABSTRACT:
In constructions with a relatively limited ground height, e.g., bridges, flat roofs, etc. the foundation or earthwork is covered with a sealing sheet, which extends up to a drain casing or frame. To avoid a return flow of liquid below the sealing sheet and into the foundation, in the arrangement according to the invention, the edge portion of the sealing sheet is laid downward over the wall of the frame or the casing. A locking frame is placed on the edge portion of the sealing element. The locking frame can additionally be secured in position by vertical threaded bolts and is used for pressing the edge portion of the sealing sheet onto the frame or onto the casing.

REFERENCES:
patent: 4305679 (1981-12-01), Modi
patent: 4557625 (1985-12-01), Jahnke et al.
patent: 4610568 (1986-09-01), Koerner
patent: 4765775 (1988-08-01), Kroger
patent: 4802792 (1989-02-01), Flessas

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