Manhole structure and method of making same

Details Manhole structure and method of making same Manhole structure and method of making same

1979-08-06

1981-06-30

Michalsky, Gerald A.

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

52 20, E02D 2912

Patent

active

042757576

ABSTRACT:
A multipiece prefabricated manhole assembly and method of making same. The manhole assembly is formed from a cured mixture of a polyester and fiberglass that may have the components thereof wholly or partially assembled in the field to rest on a manhole foundation to provide a manhole structure that is dimensionally stable and one that is substantially impervious to the corrosive action of sewage and gases emanating from the latter such as hydrogen sulphide, methane and the like.

REFERENCES:
patent: Re29636 (1978-05-01), Gilbu
patent: 3715958 (1973-02-01), Crawford et al.
patent: 3745738 (1973-07-01), Singer
patent: 4089139 (1978-05-01), Moffa et al.

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