Manhole casting removing device

Details Manhole casting removing device Manhole casting removing device

1981-09-14

1984-07-10

Pate, III, William F.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

299 90, 404 90, E21C 4700, E01C 2300

Patent

active

044589492

ABSTRACT:
A device for cutting through pavement in order to remove a manhole casting during the repaving of a road surface so that the manhole casting may be raised or lowered to correspond with the elevation of the new road surface. The device is mounted on a conventional road grader that has been modified to accommodate the device and is positioned over the manhole casting so that the existing pavement and cement may be cut from the road surface and the manhole casting removed to permit bricks to be laid on or removed from the manhole so as to raise or lower the manhole so that the manhole casting's height will correspond with the elevation of the new road surface.

REFERENCES:
patent: Re29356 (1977-08-01), Bennett
patent: 799880 (1905-09-01), Tonge, Jr.
patent: 1812771 (1931-06-01), Blood et al.
patent: 2319528 (1943-05-01), Barbour et al.
patent: 2747475 (1956-05-01), West
patent: 2830795 (1958-04-01), Center, Jr.
patent: 3539014 (1970-11-01), Jonsson
patent: 3767262 (1973-10-01), Pentith
patent: 3825361 (1974-07-01), Steiner

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