Inside drop system for manholes

Details Inside drop system for manholes Inside drop system for manholes

1998-09-25

2000-06-13

Bagnell, David

Hydraulic and earth engineering

Fluid control, treatment, or containment

Fluid storage in earthen cavity

405 36, 404 2, 52 20, 2851791, 137372, E02D 2912

Patent

active

060741309

ABSTRACT:
A manhole drop system is described which is convenient to inspect. A catch bowl made of an integral structure is formed to capture and channel sewer fluid entering a manhole an elevation that is above a bottom located sewer line. The catch bowl has its upper portion shaped to reveal both a lower exit port leading to down drain and to reveal the discharge opening from a side feed. The catch bowl has a front surface that is curved sufficiently to enable a relatively secure seal between the front surface and a curved wall of the manhole.

REFERENCES:
patent: 1005371 (1911-10-01), Union
patent: 1341870 (1920-06-01), Woock
patent: 1816670 (1931-07-01), Church
patent: 5402848 (1995-04-01), Kelly

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