Reinforced composite manhole cover assembly

Details Reinforced composite manhole cover assembly Reinforced composite manhole cover assembly

2007-08-27

2009-02-03

Addie, Raymond W (Department: 3671)

Road structure, process, or apparatus

Pavement

Vault cover-closure

C052S019000

Reexamination Certificate

active

07484909

ABSTRACT:
A lightweight manhole cover assembly includes a cover and a base, with the cover including an inner surface having a plurality of ribs extending therefrom. The base includes an inner surface having a plurality of receptacles extending therefrom. The receptacles of the base have a layout that corresponds to the ribs of the cover, such that the ribs are adapted to be inserted into the receptacles.

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