Manhole construction

Details Manhole construction Manhole construction

1975-10-20

1977-05-17

Cohan, Alan

Fluid handling

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

Static constructional installations

52 21, E02D 2912

Patent

active

040235904

ABSTRACT:
An integral passageway is formed in a manhole construction to establish communication between an upper inlet to the manhole and a bottom outlet. Precast sections having such a passageway formed therein may be employed to build a desired height of the manhole, an upper one of the sections having an inlet for connection to a service line and the precast sections being stacked such that the upright passageways therein are in vertical alignment.

REFERENCES:
patent: 418816 (1890-01-01), Palmer
patent: 468141 (1892-02-01), Tomlinson
patent: 476440 (1892-06-01), Bates
patent: 672004 (1901-04-01), McRoy
patent: 848917 (1907-04-01), McElligott et al.
patent: 2902157 (1959-09-01), Culver
patent: 3106044 (1963-10-01), DiTullio et al.
patent: 3212519 (1965-10-01), Paschen
patent: 3695153 (1972-10-01), Dorris

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