Water jet scarifying apparatus

Details Water jet scarifying apparatus Water jet scarifying apparatus

1985-06-20

1987-01-20

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 36, 299 17, 299 64, 404 91, E21C 2560, E01C 2312

Patent

active

046376569

ABSTRACT:
Apparatus for the removal of layers of concrete, particularly from roadways and motorways. This apparatus includes nozzles positioned at one end of respective hollow shafts supported by a ball joint and mounted on movable supports. The said nozzles are supplied with water by means of a high pressure pump upstream of which there are positioned preliminary treatment systems for treating the water itself. The nozzles, moreover, are mounted on a slide controlled by electronic apparatus operable to maintain them at a predetermined height with respect to the surface to be scarified. Means are also provided for the elimination of possible hindrances to the free downflow of the water jets against the surface to be scarified.

REFERENCES:
patent: 3347597 (1967-10-01), Holifield
patent: 3539234 (1970-10-01), Rapata
patent: 3598446 (1971-08-01), Hatcher
patent: 3790214 (1974-02-01), Kilroy
patent: 3923341 (1975-12-01), Miller
patent: 4081200 (1978-03-01), Cheung
patent: 4473319 (1984-09-01), Spangler
Mitsui Mining Co., Ltd., "Hydraulic Mining", 6/1975.

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