Stair cleaning device

Details Stair cleaning device Stair cleaning device

1994-02-09

1995-01-03

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

451353, A47L 1116, A47L 1140

Patent

active

053773756

ABSTRACT:
A stair cleaning device intended for cleaning the steps and risers of stairs and other confined areas comprises three heads driven by a motor and a belt and pulley system. The belt is toothed on one side and not on the other side so that some slippage can occur. The advantages of this is improved operational comfort and less likelihood of damage to the drive system.

REFERENCES:
patent: 2941222 (1960-06-01), Allen et al.
patent: 3169262 (1965-02-01), Allen et al.
patent: 4150456 (1979-04-01), Alvarez et al.
patent: 4862548 (1989-09-01), Sergio

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