Floor cleaner

Patent metadata

Field	Value
Publication number	US-12011127-B2
Application number	US-202318321672-A
Country	US
Kind code	B2
Filing date	May 22, 2023
Priority date	Feb 13, 2020
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A floor cleaner including a including a base, an upright portion, and a recovery tank. The recovery tank includes a baffle configured to separate liquid and air from a liquid-laden stream entering the recovery tank.

First claim

What is claimed is:

1. A floor cleaner comprising:
a fluid flow path extending from a dirty air inlet to a clean air outlet;
a fluid flow motor positioned in the fluid flow path;
a recovery tank positioned in the fluid flow path having a top portion, a bottom portion, and a sidewall extending between the top portion and the bottom portion,
the recovery tank configured to receive liquid-laden air from the dirty air inlet, the recovery tank having a recovery tank inlet forming an inlet passageway in fluid communication with the dirty air inlet and a recovery tank outlet in fluid communication with the clean air outlet;
a baffle with a baffle wall surrounding a baffle axis, the baffle wall having an upper end and a lower end opposite the upper end, the baffle having a first side and a second side opposite the first side, a first surface toward the clockwise direction that extends downwardly toward the lower end of the baffle wall in a direction from the first side toward the second side, and a second surface toward the counter clockwise direction that extends downwardly toward the lower end of the baffle wall in a direction from the first side toward the second side,
the baffle aligned with the inlet passageway, the inlet passageway configured to direct a stream of liquid-laden air against the first side of the baffle wall directing a first portion of the liquid circumferentially around the baffle in a clockwise direction and a second portion in a counter clockwise direction to separate the liquid from the air;
wherein the first surface and the second surface directs the first portion and the second portion of the stream of liquid in the respective circumferential direction and an axial direction.

2. The floor cleaner of claim 1 , wherein the baffle axis extends in a direction from the bottom portion of the recovery tank to the top portion of the recovery tank.

3. The floor cleaner of claim 2 , wherein the recovery tank sidewall forms a central axis extending between the bottom portion and the top portion, wherein the baffle axis is disposed along the central axis.

4. The floor cleaner of claim 1 , wherein the inlet passageway includes a diverter configured to divide the stream into the first portion and the second portion.

5. The floor cleaner of claim 1 , wherein the baffle wall includes a skirt around the lower end of the baffle wall.

6. The floor cleaner of claim 5 , wherein the skirt is frusto-conical.

7. The floor cleaner of claim 5 , wherein a diameter of a distal edge of the skirt is between 1 and 10 millimeters greater than a diameter of the lower end of the baffle wall.

8. The floor cleaner of claim 5 , wherein at least a portion of a distal edge of the skirt is adjacent the sidewall of the recovery tank.

9. The floor cleaner of claim 1 , wherein the recovery tank includes a lid assembly removably coupled to the top portion covering an opening in the recovery tank, wherein the baffle is connected to the lid assembly.

10. The floor cleaner of claim 9 , wherein the baffle is removable from the recovery tank with the lid assembly.

11. The floor cleaner of claim 1 , wherein the recovery tank includes an air outlet duct in communication with the recovery tank outlet.

12. The floor cleaner of claim 11 , wherein the air outlet duct forms at least a portion of the baffle.

13. The floor cleaner of claim 1 , wherein the lower end of the baffle wall is spaced a predetermined distance above the bottom portion of the recovery tank.

14. The floor cleaner of claim 1 , further comprising a base movable along a surface to be cleaned and an upright portion coupled to the base, the upright portion movable between an inclined use position and an upright storage position.

15. The floor cleaner of claim 14 , wherein the recovery tank is disposed on the base.

16. The floor cleaner of claim 14 , wherein the recovery tank is disposed on the upright portion.

17. The floor cleaner of claim 16 , wherein the recovery tank inlet is on a back side of the recovery tank and the inlet passageway is directed toward a forward side of the recovery tank.

Assignees

• Techtronic Floor Care Tech Ltd

Inventors

• Davila Rafael
• Mcrorie Robert
• Sookdeo Yogeshwar

Classifications

• B01D45/08

  by impingement against baffle separators · CPC title

• A47L11/4077

  Skirts or splash guards · CPC title

• A47L11/4027

  Filtering or separating contaminants or debris · CPC title

• A47L11/4016 Primary

  specially adapted for collecting fluids · CPC title

• A47L7/0023

  Recovery tanks (for cleaning machines A47L11/4013) · CPC title