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US 4,369,544 AGranted
Machine to wash surfaces
AssigneeNovum in Elettrodomestica Srl
InventorSebastiano Parisi
Life of this patent
Estimating the term…
Abstract
The invention embodies a machine to wash surfaces which comprises: a suction element positioned at least at its front, a front humidifier element which can possibly be shut off and which cooperates with an absorbing sheet, a sprayer which can possibly be shut off, and roller brushes. The machine also may advantageously comprise a rear absorbing sheet and an intermediate dryer.
Claims14
A machine to wash surfaces to be walked on having a front and back which comprises suction means in the front directed toward the surface to pick up loose materials from the surface,
- absorbing means positioned behind said suction means contactable with said surface to wipe up material loosened from the surface, humidifier means cooperating with said absorbing means to loosen material from the surface,
- sprayer means positioned behind said absorbing means directed toward said surface to moisten and loosen material from the surface, and
- brush means positioned behind said sprayer means and contactable with said surface to loosen material from the surface.
Dependencies are inferred from the claim text.