Scraping device for floor and surface cleaning machines

Details Scraping device for floor and surface cleaning machines Scraping device for floor and surface cleaning machines

1988-10-11

1989-09-05

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 87, 51177, A47L 1116

Patent

active

048625485

ABSTRACT:
The invention relates to a scraping device for floor and surface cleaning machines, and comprises: a first upright bell-shaped element (2) fixed against rotation and having an edge (6a) adapted to bear directly on a surface to be cleaned, a second inverted bell-shaped element (9) engaged coaxially and rotatably inside the first element (2) to define a substantially closed chamber (10) therewith, spindles (13) rotatably through-penetrating the second element (9), scraping brushes (14having metal bristles and being engaged rotatively with the second element (9), outside the chamber (10), and rotatively rigid with the spindles, and drive members (15,16,17) for transmitting the rotary motion to the scraping brushes (14) engaging with the spindles (13) inside the chamber (10).

REFERENCES:
patent: 2668968 (1954-02-01), Dobrowolski
patent: 4097950 (1978-04-01), Satterfield
patent: 4150456 (1979-04-01), Alvarez

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