Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1990-12-12
1992-03-03
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
51176, 299 88, 404 90, E01C 2308
Patent
active
050926586
ABSTRACT:
Apparatus for profiling surfaces which includes a drum rotatably mounted on a frame, the drum having a plurality of generally helically extending grooves with a plurality of clip elements in each groove, at least one hardened bit member mounted in each clip element and extending radially outwardly of the periphery of the drum.
REFERENCES:
patent: 4333686 (1982-06-01), Arnswald
patent: 4704045 (1987-11-01), Taylor et al.
patent: 4891858 (1990-01-01), Wachter
Bagnell David J.
Surface Preparation Systems
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