Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole
Patent
1997-03-05
1998-08-25
Coggins, Wynn Wood
Static structures (e.g., buildings)
With entrance for persons or objects in horizontal or...
With additional enclosure structure; e.g., manhole
52 19, 52 21, 404 25, 404 26, E02D 2914
Patent
active
057972214
ABSTRACT:
A replacement manhole cover assembly for an existing manhole having a fixed frame around the periphery of the manhole, the frame having an upper horizontal lip essentially flush with the surrounding pavement and a lower horizontal shelf, wherein the replacement manhole cover assembly includes an annular skirt selectively removable on the lower horizontal shelf of the frame, the skirt having a vertical extension terminating at a lower horizontal shelf for supporting a manhole cover made of composite material.
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Meyer Roy A.
Young James E.
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