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Angled manhole sealing band and method for use

a manhole and sealing band technology, applied in the field of manhole structures, can solve the problems of difficult access to the gaps between the stacked components, the manhole created by such stacking of components is vulnerable to leakage, and the gaps below the ground level become difficult to reach, so as to achieve the effect of enhancing the rigidity of the l-shaped corner

Inactive Publication Date: 2008-07-17
SEALING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]The rigidity of the L-shaped corner may be enhanced by making it from a thicker material than the first or second portions. The thickness of the L-shaped corner may be at least twice the thickness of the first and second portions.

Problems solved by technology

Manholes created by such stacking of components are vulnerable to leaks.
Water and other contaminants may enter through gaps between the stacked components after installation.
Once the manhole structure has been installed and earth has been filled in around it, gaps below the ground level become difficult to reach.
But methods that use heat require a heat source, often torches and other special tools that involve hazards to the user.

Method used

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  • Angled manhole sealing band and method for use
  • Angled manhole sealing band and method for use
  • Angled manhole sealing band and method for use

Examples

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Embodiment Construction

[0016]As shown in FIGS. 1-5, sealing band 10 is generally L-shaped, with a first portion 12 that extends horizontally in relation to a manhole structure, a second portion 14 that extends vertically, and a corner 34 linking the first and second portions.

[0017]In FIG. 1, band 10 is shown in position around a cross section of manhole structure 16. Manhole structure 16 includes a cone 18 and a casting 20. Cone 18 has a lower portion 22 that extends downward to a sewer (not shown) and an upper margin 24 on which casting 20 is disposed. The casting 20 is generally hat shaped and includes a brim portion 26, an upper portion 28, and a lid-receiving portion 30.

[0018]Band 10 is positioned around the exterior periphery of the upper margin 24 of cone 18 and overlaps with part of brim portion 26 of casting 20. In the embodiment shown in FIG. 1, cone 18 is shown without adjusting rings.

[0019]The positioning of band 10 around manhole structure 16 is shown in greater detail in FIG. 2, which shows a...

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PUM

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Abstract

The invention relates to a device and method for sealing a manhole structure. A band with a relatively rigid angled corner engages the upper margin of a manhole structure. Adhesives may also be used with the band to enhance the seal with the manhole structure.

Description

FIELD OF THE INVENTION[0001]This invention relates to manhole structures. In particular, it relates to a method and device for sealing a manhole structure.BACKGROUND OF THE INVENTION[0002]Manholes are used to provide street-level access to sewer lines and other underground structures. Most often, the top portion of the manhole has the form of a cylindrical frame (or casting) with a lid. The lower portion of the casting, which is not generally seen after installation, often resembles a hat with a brim. This hat-shaped casting rests on a concrete cone leading to a sewer line. The upper portion of the casting defines an opening that may be closed with a lid. The elevation of the manhole casting and lid may be raised to the level of the surrounding surface grade by placing one or more concrete adjusting rings between the bottom of the casting and the cone. A manhole structure is thus created by stacking a number of components on top of each other. After the manhole structure is installe...

Claims

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Application Information

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IPC IPC(8): E02D29/14
CPCE02D29/12
Inventor ESS, PAUL H.
Owner SEALING SYST