Manhole cover

Details Manhole cover Manhole cover

1990-01-31

1990-11-27

Novosad, Stephen J.

Road structure, process, or apparatus

Pavement

Vault cover-closure

52 20, E02D 2914

Patent

active

049731912

ABSTRACT:
A manhole cover including a frame and a lid having an insert plate on its upper surface. The lid is insertable into the frame which is provided in the road surface. Securing screws are provided for detachably securing the insert plate to the base portion of the lid from the underside of the lid. The insert plate is configured as an advertising area.

REFERENCES:
patent: 1014142 (1912-01-01), Garrison
patent: 1712510 (1929-05-01), Monie
patent: 2314682 (1943-03-01), Becket
patent: 3046853 (1962-07-01), Legendre
patent: 3408778 (1968-11-01), Mason
patent: 4048766 (1977-09-01), Dantzer et al.
patent: 4145151 (1979-03-01), Helms
patent: 4597692 (1986-07-01), Gruenwald
patent: 4614065 (1986-09-01), Papp

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