Manhole

Details Manhole Manhole

E - Fixed Constructions

02

D

E02D 29/12 (2006.01) E02D 29/14 (2006.01)

Patent

CA 2160211

A manhole embodiment that includes a skirt having a stiffening flange extending laterally from the a location near the bottom rim of the skirt to provide lateral strength and a footing for the manhole and an outwardly extending lip at the skirt upper rim. The manhole top ring connects directly to the top of the lip. This eliminates the need for a separate piece such as the lower L-shaped ring piece included in conventional manholes. An optional extension skirt can telescope into the bottom of the upper skirt that can be held to the upper skirt by fasteners. The telescoping extension skirt can be height adjusted in the field so that the over-all height of the manhole can be adjusted to any desired height, say between 8 and 16 inches.

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