Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1985-01-03
1986-05-06
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
299 16, 299 39, E01H 100
Patent
active
045862133
ABSTRACT:
This invention is concerned with a machine for automatically removing a curing film or membrane from a concrete floor surface and etching that surface in preparation for applying a surface coating and doing this in less time than has heretofore been required for such floor preparation.
REFERENCES:
patent: 3755850 (1973-09-01), Porter
patent: 3833961 (1974-09-01), Fortman et al.
patent: 3879789 (1975-04-01), Kasper
patent: 4154578 (1979-05-01), Bane
patent: 4167799 (1979-09-01), Webb
patent: 4369544 (1983-01-01), Parisi
Bricher Charles W.
Snetting Mark E.
Moore Chris K.
Tennant Company
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