Self-cleaning features for extraction cleaners

Patent metadata

Field	Value
Publication number	US-10588476-B2
Application number	US-201816152042-A
Country	US
Kind code	B2
Filing date	Oct 4, 2018
Priority date	Oct 6, 2017
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

Self-cleaning features for extraction cleaners and attachments for extraction cleaners, such as accessory tools, wands, and/or hoses, are provided. The self-cleaning features are configured redirect cleaning fluid from a fluid supply system of the extraction cleaner into a working air or fluid recovery path of the extraction cleaner, including, but not limited to into the working air or fluid recovery path of a tool, wand, and/or hose of the extraction cleaner.

First claim

What is claimed is:

1. A system for cleaning a recovery path of an extraction cleaner having a fluid delivery system comprising a supply container and a recovery system comprising at least a suction source and a recovery container, the system comprising:
a wand, comprising:
a fluid delivery pathway adapted for fluid communication with the supply container and having a fluid connector; and
an airflow pathway adapted for fluid communication with the recovery container having an airflow connector; and

a wand cap adapted to partially receive the wand and comprising:
a fluid connector receiver that mates with the fluid connector of the wand;
an airflow connector receiver that mates with the airflow connector of the wand; and
an enclosed pathway between the fluid connector receiver and the airflow connector receiver.

2. The system of claim 1 wherein the wand comprises a wand housing with a first end adapted to selectively couple an accessory cleaning tool and a second end opposite the first end, wherein the fluid connector and the airflow connector are provided at the first end.

3. The system of claim 2 wherein the wand cap fits on the first end of the wand housing.

4. The system of claim 1 wherein the enclosed pathway comprises a first internal fluid channel in fluid communication with the fluid connector receiver and a second internal fluid channel in fluid communication with the airflow connector receiver.

5. The system of claim 4 wherein the wand cap further comprises a wall separating the first internal fluid channel and the second internal fluid channel, and at least one passage opening provided in the wall.

6. The system of claim 1 wherein the wand cap comprises a cap housing having a closed end wall and a peripheral side wall extending from the closed end wall to an open opposite end in which the wand is received.

7. The system of claim 6 wherein the wand cap further comprises at least one air vent formed in the cap housing and in fluid communication with the enclosed pathway.

8. The system of claim 6 wherein at least a portion of the cap housing is transparent.

9. The system of claim 1 wherein the wand cap further comprises a hose clip configured to clip onto an accessory hose of the extraction cleaner for storage.

10. The system of claim 1 , further comprising an accessory hose coupled with the wand and comprising:
a flexible fluid delivery conduit in fluid communication with the fluid delivery pathway; and
a flexible hose conduit in fluid communication with the airflow pathway.

11. The system of claim 10 wherein the wand cap further comprises a hose clip configured to clip onto an accessory hose of the extraction cleaner for storage.

12. The system of claim 1 , further comprising the extraction cleaner wherein the wand cap is provided on the extraction cleaner.

13. The system of claim 12 wherein the wand cap comprises a wand receiver on a housing of the extraction cleaner.

14. The system of claim 1 wherein the wand comprises a valve in the fluid delivery pathway for controlling the flow of cleaning fluid to the fluid connector and a trigger operably coupled with the valve.

15. The system of claim 1 wherein the wand comprises a detent and the wand cap comprises a detent opening configured to receive the detent to secure the wand cap to the wand.

Assignees

• Bissell Homecare Inc

Inventors

• Royale Victoria J
• Griffith Aaron P
• Miller David M
• Luyckx Michael
• Wolfe Brian C
• Benacquisto Justin

Classifications

• A47L11/201

  with supply of cleaning agents · CPC title

• A47L11/4094

  Accessories to be used in combination with conventional vacuum-cleaning devices · CPC title

• A47L11/4088

  Supply pumps; Spraying devices; Supply conduits · CPC title

• A47L11/30

  by suction · CPC title

• A47L11/34

  Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam · CPC title