Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1987-10-02
1989-02-21
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15355, 15385, A47L 700
Patent
active
048052566
ABSTRACT:
This invention is concerned with a machine in the nature of a scrubber for removing dirt, grime, etc. from a surface to be cleaned and includes a mobile machine with a scrub brush mounted for rotation about a generally vertical axis with a housing therefor which is pivotally mounted and concentric with the scrub brush drive. The brush, brush drive, brush housing and squeegees which are mounted on the brush housing, also make up a brush head assembly that is raised and lowered as a unit.
REFERENCES:
patent: 3436788 (1969-04-01), Tamny
patent: 3460184 (1969-04-01), Dyer
patent: 3833961 (1974-09-01), Fortman et al.
patent: 3886623 (1975-06-01), Landesman et al.
patent: 4000538 (1977-01-01), Tissier
patent: 4037289 (1977-07-01), Dojan
patent: 4041567 (1977-08-01), Burgoon
patent: 4339840 (1982-07-01), Monson
patent: 4485519 (1984-12-01), Collier
patent: 4701976 (1987-10-01), Palmer et al.
patent: 4715087 (1987-12-01), Todd et al.
Koenigs Philip E.
Mason Richard A.
Hornsby Harvey C.
Reinckens Corinne M.
Tennant Company
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