FLOOR SURFACE TREATING APPARATUS

• US 3,870,486 A
• Filed: 09/19/1973
• Issued: 03/11/1975
• Est. Priority Date: 09/22/1972
• Status: Expired due to Term

• Current Assignee: Bolik Anders Gottfrid Eriksson, Erik Karl Gustav Johansson, Milos Vukotic
• Original Assignee: Bolik Anders Gottfrid Eriksson, Erik Karl Gustav Johansson, Milos Vukotic
• Inventors: Johansson, Erik Karl Gustav, Eriksson, Bolik Anders Gottfrid, Vukotic, Milos
• Primary Examiner(s): Lutter, Frank W.
• Assistant Examiner(s): Lacey, David L.
• Application Number:
  US05/398,846
• Time in Patent Office: 538 Days
• Field of Search: 55/217,219,270,274,276,337,315,318,319,320,332,356,357,383,410,413,459,471,472 116/109,114AD,118 15/326,353
• US Class Current: 96/385
• CPC Class Codes: A47L 7/0019 Details of the casing
• CPC Class Codes: A47L 7/0028 Security means, e.g. float valves or level switches for preventing overflow
• CPC Class Codes: A47L 7/0038 with means for emptying the tanks
• CPC Class Codes: A47L 7/0042 Gaskets; Sealing means
• CPC Class Codes: A47L 9/0081 Means for exhaust-air diffusion; Means for sound or vibration damping
• CPC Class Codes: A47L 9/122 flat
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: A47L 9/22 Mountings for motor fan assemblies
• CPC Class Codes: Y10S 55/03 Vacuum cleaner
• CPC Class Codes: Y10S 55/08 Built-in vacuum cleaners

Abstract

A floor surface treating apparatus having multistage dust and liquid separation and in which the apparatus is provided with an upper part having an inlet for dust-laden air or liquid, and a discharge opening for clean air. A cyclone separator and a motor fan unit are mounted substantially centrally in the apparatus. The separated dust as well as the separated liquid is collected in the lower part of the apparatus from the cyclone separator, and the air outlet in the cyclone separator communicates with the clean air outlet through a filter and the motor fan unit of the apparatus.

Claims

1. A floor surface treating apparatus comprising a container having an upper part provided with an inlet opening for dustladen air or liquid and discharge opening for clean air and a lower part foR collecting separated dust or separated liquid, a generally vertically disposed cyclone separator in said container operatively connected to said inlet opening, at least one motorfan unit in said container for moving air through said container, a relatively flat filter extending substantially across the entire width of the upper part of said container, means supporting said filter above both said separator and said motorfan unit;

said support means comprise means forming a housing around said filter; and

said housing having an air inlet above said filter and air outlet below said filter, and said support means further forms a passageway from said separator to the inlet of said housing whereby air leaving said separator follows said passageway to the inlet of said housing and then flows through said filter and said housings outlet to the inlet of said motorfan unit and subsequently to said discharge opening for clean air, and said separator being provided with a dust and liquid outlet communicating with said lower part of said container.

2. The apparatus as claimed in claim 1 wherein said supporting means comprising a substantially funnel-shaped intermediate wall, the upper peripheral edge of which supports said filter, and the lower part of said intermediate wall being provided with said opening that communicates with the inlet opening of said motor-fan unit.

3. The apparatus as claimed in claim 1 further comprising a sound absorber structure arranged in the upper part of said housing container between the exhaust opening of said motor fan unit and said discharge opening.

4. The apparatus as claimed in claim 1 further comprising a liquid level sensor in the lower part of said housing container.

5. The apparatus as claimed in claim 1 wherein said filter comprises a plurality of superposed layers of inorganic material forming an integrated structure.

6. The apparatus as claimed in claim 5 wherein said filter material is fiberglass.