Surface cleaning apparatus

Patent metadata

Field	Value
Publication number	US-12329334-B2
Application number	US-202117524810-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Oct 28, 2015
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A surface cleaning apparatus includes a housing including an upright handle assembly and a base mounted to the upright handle assembly and adapted for movement across a surface to be cleaned. The surface cleaning apparatus is further provided with a fluid delivery system comprising a fluid dispenser configured to dispense fluid to a brushroll and at least one fluid delivery channel forming a portion of a fluid delivery pathway. The fluid delivery channel can extend adjacent to a portion of the suction nozzle assembly. An interference wiper interfaces with a portion of the brushroll to remove excess liquid from the brushroll.

First claim

What is claimed is:

1. A surface cleaning apparatus, comprising:
a recovery system comprising a recovery pathway and a suction source;
an upright handle assembly; and
a base operably coupled to the upright handle assembly and adapted for movement across a surface to be cleaned, the base comprising:
an open front;
a cover assembly closing the open front of the base, the cover assembly including a forward wall and a rear wall and having an underside extending from the forward wall to the rear wall, the cover assembly at least partially defining a suction inlet of the recovery pathway, the suction inlet in fluid communication with the suction source, wherein the suction inlet is rearward of the forward wall of the cover assembly;
a chamber defined on the underside of the cover assembly and at least partially defined by the forward wall of the cover assembly and the rear wall of the cover assembly; and
an agitator within the recovery pathway, the agitator at least partially received in the chamber between the forward wall and the rear wall of the cover assembly;
wherein the agitator is rotatable about a rotational axis, the forward wall is spaced from the rotational axis in a first direction from the rotational axis and the rear wall is spaced from the rotational axis in a second direction from the rotational axis; and
wherein the cover assembly is removably mounted on the base and is removable from the base as a unit, with the forward wall and the rear wall configured to be removed at the same time, whereby removal of the cover assembly from the base exposes the open front of the base; and
wherein the agitator remains with the base upon removal of the cover assembly from the base, whereby removal of the cover assembly from the base exposes at least an upper side of the agitator and a front side of the agitator.

2. The surface cleaning apparatus of claim 1 , further comprising a first wiper positioned on a first side of the agitator.

3. The surface cleaning apparatus of claim 2 , wherein the first wiper is mounted to the forward wall and extends into the chamber.

4. The surface cleaning apparatus of claim 2 , wherein the agitator comprises a rotating brushroll and the first wiper is an interference wiper adapted to interface with a leading portion of the rotating brushroll prior to rotation of the leading portion into contact with the surface to be cleaned.

5. The surface cleaning apparatus of claim 2 , further comprising a second wiper positioned on a second side of the agitator, generally opposite from the first side.

6. The surface cleaning apparatus of claim 1 , wherein the agitator includes a rotating brushroll or dual-rotating brushrolls.

7. The surface cleaning apparatus of claim 1 , wherein a fluid dispenser is located on the underside of the cover assembly, wherein the fluid dispenser is removable from the base by the removal of the cover assembly from the base as a unit, with the fluid dispenser configured to be removed at the same time as the forward wall and the rear wall.

8. The surface cleaning apparatus of claim 1 , wherein the cover assembly further comprises:
a nozzle housing including the forward wall and the rear wall;
a nozzle cover overlying at least a portion of the nozzle housing opposite the underside; and
an upper cover overlying at least a portion of the nozzle housing and the nozzle cover and defining an upper surface of the cover assembly.

9. The surface cleaning apparatus of claim 8 , wherein the cover assembly further comprises at least one panel mounted to at least one of the upper surface or the nozzle cover.

10. A surface cleaning apparatus, comprising:
a recovery system comprising a recovery pathway, a recovery tank, and a suction source;
a housing including an upright handle assembly and a base operably coupled to the upright handle assembly and adapted for movement across a surface to be cleaned, the base comprising:
an open front;
a suction nozzle assembly closing the open front of the base and at least partially defining a suction inlet in fluid communication with the suction source, the suction nozzle assembly having an underside extending from a forward wall to a rear wall, wherein the suction inlet is rearward of the forward wall;
a brushroll chamber defined on the underside of the suction nozzle assembly and at least partially defined by the forward wall of the suction nozzle assembly and the rear wall of the suction nozzle assembly; and
a rotatable brushroll within the recovery pathway, the rotatable brushroll at least partially received in the brushroll chamber, the rotatable brushroll positioned between the forward wall and the rear wall;
wherein the brushroll is rotatable about a brushroll axis, the forward wall is spaced from the brushroll axis in a first direction from the brushroll axis and the rear wall is spaced from the brushroll axis in a second direction from the brushroll axis that is opposite the first direction; and
wherein the suction nozzle assembly is removable from the base as a unit, with the forward wall and the rear wall configured to be removed at the same time, whereby removal of the suction nozzle assembly from the base exposes the open front of the base; and
wherein the brushroll remains with the base upon removal of the suction nozzle assembly from the base, whereby removal of the suction nozzle assembly from the base exposes at least an upper side of the brushroll and a front side of the brushroll.

11. The surface cleaning apparatus of claim 10 , further comprising a latch mechanism provided at a rearward portion of the suction nozzle assembly and adapted for selectively mounting the suction nozzle assembly to the base, wherein the latch mechanism is selectively received in a corresponding receiving portion of the base.

12. The surface cleaning apparatus of claim 10 , further comprising a fluid delivery system provided on the housing and comprising:
a fluid supply chamber adapted to hold a supply of liquid;
a fluid dispenser provided on the base in fluid communication with the fluid supply chamber; and
a fluid delivery pathway between the fluid supply chamber and the fluid dispenser.

13. The surface cleaning apparatus of claim 12 , wherein the fluid dispenser is coupled to the suction nozzle assembly and removable with the suction nozzle assembly from the base as a unit, with the fluid dispenser configured to be removed at the same time as the forward wall and the rear wall.

14. The surface cleaning apparatus of claim 13 wherein the fluid dispenser is located on the underside of the suction nozzle assembly.

15. The surface cleaning apparatus of claim 14 , wherein the fluid dispenser extends through at least a portion of the suction nozzle assembly and wherein the forward wall extends forwardly from the fluid dispenser, and the rear wall extends rearwardly from the fluid dispenser.

16. The surface cleaning apparatus of claim 12 , wherein the suction nozzle assembly further comprises:
a nozzle housing including the forward wall and the rear wall; and
a nozzle cover overlying at least a portion of the nozzle housing opposite the underside.

17. The surface cleaning apparatus of claim 16 , wherein at least a portion of the fluid delivery pathway extends through the nozzle cover.

18. The surface cleaning apparatus of claim 10 , further comprising a first wiper mounted on the suction nozzle assembly, wherein the first wiper interfaces with the rotatable brushroll.

19. The surface cleaning apparatus of claim 1 , wherein the base comprises an open

Assignees

• Bissell Inc

Inventors

• Xia Jincheng
• Ge Jianjun
• Yin Zhenjiang
• Chen Xin
• Liang Yongsheng
• Ma Kam Hoi

Classifications

• A47L11/4041

  Roll shaped surface treating tools · CPC title

• A47L11/4016

  specially adapted for collecting fluids · CPC title

• A47L11/4008

  Arrangements of switches, indicators or the like · CPC title

• A47L11/30

  by suction · CPC title

• A47L11/29

  Floor-scrubbing machines characterised by means for taking-up dirty liquid · CPC title