Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1996-05-17
1997-09-09
Scherbel, David
Brushing, scrubbing, and general cleaning
Machines
Brushing
15 411, 15 44, A47L 1132
Patent
active
056642768
ABSTRACT:
A brush-type sweeper unit includes a prism-like body that has a base with an open front part, an open front face, and an upper face provided by a removable cap from which a handle for moving the sweeper unit extends. The body also includes parallel sidewalls between which first, second and third shafts extend, with the second shaft being between the first and third shafts. Front and rear cylindrical brushes are mounted on the respective first and second shafts, and a set of front wheels are also mounted on the first shaft at opposite ends thereof. Mounted on the third shaft are a set of rear wheels that are in edge-to-edge frictional engagement with a set of driven wheels on the second shaft. In this way the rear brush is driven by rotation of the rear wheels transmitted through the driven wheels, with rotation of the rear brush being in a direction opposite to the rotational direction of the front brush. As the sweeper unit moves forward, dirt particles are lifted between the brushes and delivered to the interior of the body with the latter providing a storage container for dirt particles lifted by the brushes. Projecting forward from opposite sides of the body are diverging short brush units, with bristles of one brush unit facing the bristles of the other brush unit.
REFERENCES:
patent: 920209 (1909-05-01), Stevens
patent: 3879788 (1975-04-01), Cousin
patent: 3978539 (1976-09-01), Yonkers
patent: 4007508 (1977-02-01), Ooyachi
patent: 4845797 (1989-07-01), Kobayashi
Scherbel David
Till Terrence
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