Ramp for temporarily elevated utility access hole

Details Ramp for temporarily elevated utility access hole Ramp for temporarily elevated utility access hole

1991-06-04

1994-05-03

Neuder, William P.

Road structure, process, or apparatus

Pavement

Vault cover-closure

404 32, 404 35, E02D 2914

Patent

active

053081889

ABSTRACT:
A protective ramp for placement around a temporarily elevated underground utility access hole support. The ramp includes a ramp member having a top surface and an obverse bottom surface, and an opening, usually centrally disposed, of a size to be placed in closely surrounding position around a predetermined size access hole support. The ramp member also has a thickness defining the opening approximating the height of the elevated access hole support over which the ramp is to be placed and a progressively diminishing thickness from the opening to the outer edge wherein the ratio of the thickness of the ramp member at the opening to the distance from the opening to the outer edge is no less than one to five.

REFERENCES:
patent: 3752482 (1973-08-01), Cassel
patent: 4808025 (1989-02-01), McGinnis
patent: 4842443 (1989-06-01), Argandora
patent: 4917531 (1990-04-01), McGinnis
patent: 4925191 (1990-05-01), Ogilvie

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