Machine to wash surfaces

• US 4,369,544 A
• Filed: 01/02/1981
• Issued: 01/25/1983
• Est. Priority Date: 01/14/1980
• Status: Expired due to Fees

• Current Assignee: Novum - Novita In Elettrodomestica SRL
• Original Assignee: Novum In Elettrodomestica SRL
• Inventors: Parisi, Sebastiano
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US06/222,260
• Time in Patent Office: 753 Days
• Field of Search: 15/320, 15/321, 15/380, 15/51
• US Class Current: 15/320
• CPC Class Codes: A47L 11/30 by suction
• CPC Class Codes: A47L 11/34 Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
• CPC Class Codes: A47L 11/4036 Parts or details of the surface treating tools
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees
• CPC Class Codes: A47L 11/4047 Wound-up or endless cleaning belts
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4086 Arrangements for steam generation
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits

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.

Claims

1. 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.

2. The machine of claim 1, wherein said brush means consist of at least one brushing roller which rotates about an axis parallel to the floor and is positioned substantially crosswise to the movement of the machine.

3. The machine of claim 1 or claim 2, wherein the absorbing means consist of at least one wiper and pressure means to elastically press the wiper against the surface to be cleaned.

4. The machine of claim 1, wherein the absorbing means comprise a wiper sheet movable along the lengthwise axis of the machine.

5. The machine of claim 1, wherein the absorbing means comprise at least one wiper sheet movable along the crosswise axis of the machine.

6. The machine of claim 1, wherein the sprayer means consist of at least one perforated pipe placed crosswise to the lengthwise axis of the machine between the brush means and absorbing means to spray liquid on to said surface.

7. The machine of claim 1, wherein the suction means consist of a suction intake extending at least crosswise to the lengthwise axis of the machine and kept near to the surface to be cleaned.

8. The machine of claim 1 wherein the humidifier means consist of a distributor pipe positioned crosswise to the lengthwise axis of the machine and in a seating present in the absorbing means.

9. The machine of claim 1 including drying means behind the brush means for blowing air.

10. The machine of claim 1, wherein said humidifier dispenses stream as a detergent substance.

11. The machine of claim 1 including means to produce steam connected to the humidifier means and sprayer means containing an adequate quantity of liquid which can be vaporized.

12. The machine of claim 11 including tank means to feed liquid to said steam producing means.

13. The machine of claim 1, wherein said absorbing means include a winding roller for winding an absorbing sheet and unclamping and clamping means for holding said winding roller in position.

14. The machine of claim 1, wherein the suction means is retractable near to a fixed edge of the machine.