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Inflow dish

Inactive Publication Date: 2013-05-23
WANDER LLOYD J
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a two-piece inflow dish assembly that can be easily removed in two pieces. The assembly includes an outside dish with a central opening and an insert dish that nests within the outside dish to close the manhole below the manhole cover. The insert dish is the diameter of a standard manhole opening so that it can be used by itself to serve as an inflow dish for a standard size manhole. The construction of the dish assembly using polycarbonate or acrylic provides strength to prevent sagging and the possibility of the dish and debris falling into the manhole. This invention provides a better solution for inflow dish applications in manholes.

Problems solved by technology

A problem with using commonly used materials, such as polyethylene, for inflow dishes is that such material is not sufficiently strong and, especially in the larger diameters required by the enlarged manholes, can result in sagging of the dish and the possibility of the dish, and the debris carried by the dish, falling into the manhole.

Method used

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Embodiment Construction

[0013]Referring now to the drawings an inflow dish assembly 10 of the present invention is shown which includes an outside dish 14 having a central opening 13 which receives an insert dish 12 to provide the two-piece inflow dish assembly 10. The inflow dish assembly 10, as can best be seen in FIG. 1, is dimensioned to fit within a manhole opening 16 of a manhole 17 and below a manhole cover 18. The manhole opening 16 is of a diameter which is larger than the diameter of a standard manhole opening and the cover 18 is therefore larger than the standard manhole cover to fit within and close the manhole opening 16. Inflow dishes are commonly provided to be mounted below the manhole cover 18 in the manhole opening 16 to collect rainwater and debris passing the cover 18 and before the rainwater can make its way into the sanitary sewer system and thereby causing the system to overflow.

[0014]The inflow dish assembly 10 of the present invention is of a diameter to fit within an enlarged manh...

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Abstract

A two piece inflow dish assembly for installation in an enlarged manhole opening to prevent debris from entering the manhole to clog the sewer system and to permit the inflow dish assembly to be removed from the manhole in separate pieces.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority of U.S. Provisional Patent Application Ser. No. 61 / 562,517, filed Nov. 22, 2011, which is incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention is directed to an inflow dish for a sanitary sewer system and more particularly to a two-piece dish assembly designed to be used in enlarged manhole openings.BACKGROUND OF THE INVENTION[0003]For a number of reasons, including the obesity of some workmen and the necessity to move larger equipment and supplies through a manhole opening to gain access to the manhole, it has been necessary to increase the diameter of manholes. Inflow dishes are designed to fit below the manhole cover and to prevent rainfall and debris that may find its way past the manhole cover from entering the sanitary sewer system.[0004]Inflow dishes designed to fit standard manhole openings, of course, do not fit manholes with enlarged diameters. Providing an inflow di...

Claims

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Application Information

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IPC IPC(8): E02D29/14
CPCE02D29/14E02D29/1472E02D2300/0004
Inventor WANDER, LLOYD J.
Owner WANDER LLOYD J