Patent ID: 6402423
Filing Date: 2002-06-11
Classification: E02D

Abstract:
Apparatus for provisionally covering an inspection shaft during pavement of a surface with asphalt or concrete, comprising:a cover plate formed with a central breakthrough spaced from a peripheral area of the cover plate at a distance sufficient to allow compacting of a pavement layer in the peripheral area of the cover plate, said cover plate having a bottom side provided with centering means for securing the cover plate against displacement in a horizontal direction; a pipe received in the breakthrough for axial displacement and having an end face distal to the centering means; a flange connected to said end face of the pipe; and a detachable lid for closing the pipe and providing a reference for ascertaining an outline of the cover plate, wherein the centering means of the cover plate includes several ribs diverging outwardly from the breakthrough in star-shaped configuration.