Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1985-02-05
1986-09-30
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
299 90, 299 92, 15236R, 403388, A47L 1114, A47L 1308
Patent
active
046143807
ABSTRACT:
A motor driven rotary scraper assembly (10) for use on concrete floors for removing adhering residues includes a plate (12, 180) for rotary driving attachment to a motor rotatable device. There are a plurality of annularly spaced scraper units (50, 112, 182) secured to the plate. Each scraper unit (50, 112, 180) has floating blades (52, 116, 190). The scraper units (50, 112) include a support member (80, 160) having limit or pivot means (92, 130, 270) to limit upward movement of the blade (52, 116, 190).
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Goodwin Michael A.
Heberer Eugene O.
Novosad Stephen J.
The Boeing Company
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