Drain apparatus with liquid trap

Details Drain apparatus with liquid trap Drain apparatus with liquid trap

1991-05-28

1993-03-09

Britts, Ramon S.

Road structure, process, or apparatus

Drain or gutter

Street or curb inlet for surface drainage

13724749, E01C 1122

Patent

active

051921561

ABSTRACT:
Apparatus for draining liquid from a surface into a sewer through a passageway extending between the surface and the sewer and for forming a liquid barrier between the sewer and the surface to prevent the flow of gases from the sewer to the surface. The apparatus incorporates structure which facilitates the flow of drainage liquid therethrough.

REFERENCES:
patent: 325231 (1885-09-01), Badgley
patent: 712194 (1902-10-01), Kelly
patent: 1005371 (1911-10-01), Union
patent: 1654803 (1928-01-01), Griffith
patent: 3516541 (1970-06-01), Hardinham
patent: 3556993 (1971-01-01), Persson
patent: 4682907 (1987-07-01), Gaudin
patent: 4776722 (1988-10-01), Gaudin

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