Grout brush for a rotary floor machine

Details Grout brush for a rotary floor machine Grout brush for a rotary floor machine

1994-09-26

1995-12-26

Roberts, Jr., Edward L.

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

15 491, A47L 11162, A47L 11164, A46B 902

Patent

active

054775809

ABSTRACT:
A brush for a rotary floor machine is especially adapted to clean grout on tile floors. The brush includes a disk having a plurality of first and second bores arranged into a plurality of rings disposed about one face of the disk. Each ring defines an arcuate pattern of alternating first and second bores. The first bores are angled inwardly towards the center of the disk, preferably 5.degree. from a line normal to the plane of the disk. The second bores are angled outwardly toward the periphery of the disk, preferably 5.degree. from a line normal to the plane of the disk. Tufts of bristles disposed within the first and second bores thus form pairs of overlapping bristles.

REFERENCES:
patent: 1557166 (1925-10-01), Horn
patent: 2291740 (1942-08-01), Menkhaus
patent: 3181193 (1965-05-01), Nobles et al.
patent: 3678529 (1972-07-01), Woods et al.
patent: 4114225 (1978-09-01), Malish et al.
patent: 4615064 (1986-10-01), Alvin

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