Surface cleaning device with a bleach generator

• US 8,662,782 B2
• Filed: 09/26/2008
• Issued: 03/04/2014
• Est. Priority Date: 09/26/2008
• Status: Active Grant

• Current Assignee: Bissell Inc.
• Original Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Inventors: Huffman, Eric C.
• Primary Examiner(s): JONAITIS, JUSTIN M
• Application Number:
  US12/239,198
• Publication Number:
  US 20100078318A1
• Time in Patent Office: 1,985 Days
• Field of Search: 401/140, 401/201, 401/283, 401/266, 401/130
• US Class Current: 401/283
• CPC Class Codes: A47L 13/22 with liquid-feeding devices
• CPC Class Codes: A61L 2/035 Electrolysis
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: A61L 2/183 Ozone dissolved in a liquid
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 2202/16 Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles
• CPC Class Codes: A61L 2202/17 Combination with washing or cleaning means
• CPC Class Codes: A61L 2202/25 Rooms in buildings, passenger compartments

Abstract

According to the invention, a surface cleaning device comprises an electrolytic cell for generating bleach for use with a cleaning pad. The electrolytic cell is in fluid communication with the cleaning pad for delivering bleach to a surface to be cleaned. According to another embodiment of the invention, the surface cleaning device is a hand-held cleaning device capable of selectively generating bleach at the request of a user directly in the cleaning pad. A sufficient amount of bleach for cleaning a surface can be generated within the electrolytic cell at the request of a user, eliminating the need for storing and transporting large quantities of bleach.

Claims

1. A surface cleaning device comprising:

a source for an electrolyte solution;

a cleaning pad in fluid communication with the source for delivering a cleaning fluid to a surface to be cleaned;

an electrolytic cell comprising at least one anode and at least one cathode, with the at least one anode and the at least one cathode formed at least in part in the cleaning pad, for generating a bleach solution within the cleaning pad for application by the cleaning pad to the surface to be cleaned; and

a cleaning head, wherein the cleaning pad is mounted to the cleaning head and the at least one anode and at least one cathode are mounted to the cleaning head and extend at least partially into the cleaning pad for generating the bleach solution in situ in the cleaning pad.

2. The surface cleaning device according to claim 1 wherein the source comprises a refillable tank and further comprising a salt chamber for holding salt for making an electrolyte solution when water passes through the chamber, the salt chamber further having an inlet opening connected to the refillable tank and an outlet opening connected to the electrolytic cell.

3. The surface cleaning device according to claim 1 wherein the source includes a portion of the cleaning pad.

4. The surface cleaning device according to claim 1 wherein the source is a tank that is separate from the cleaning pad.

5. The surface cleaning device according to claim 1 wherein the cleaning pad is washable.

6. The surface cleaning device according to claim 1 wherein the cleaning pad is disposable.

7. The surface cleaning device according to claim 1 and further comprising a sensor for determining a characteristic of the electrolytic cell related to an amount of bleach in the electrolytic cell.

8. The surface cleaning device according to claim 7 wherein the characteristic of the electrolytic cell comprises one of a temperature, pH or potential of the electrolyte solution.

9. The surface cleaning device according to claim 7 wherein the sensor is connected to an indicator for informing a user of the amount of bleach in the electrolytic cell.

10. The surface cleaning device according to claim 9 wherein the indicator is adapted to inform a user when the amount of bleach in the electrolytic cell reaches a predetermined value.

11. The surface cleaning device according to claim 9 wherein the indicator is adapted to inform the user of a range of an amount of bleach in the electrolytic cell.

12. The surface cleaning device according to claim 9 and further comprising a controller connected to the sensor and the indicator and the controller has a program for comparing a signal from the sensor with stored acceptable values or ranges of values and generating a display signal representative of the amount of bleach in the electrolytic cell.

13. The surface cleaning device according to claim 1 and further comprising a foot assembly mounting the cleaning pad and a handle assembly pivotally mounted to the foot assembly and the source forms a part of the handle assembly.

14. The surface cleaning device according to claim 1 and further comprising a housing adapted to be held in a user'"'"'s hand including a power supply housing and a cleaning head with the cleaning pad attached to the cleaning head.

15. The surface cleaning device according to claim 1 wherein at least one of the at least one anode and at least one cathode are connected to a power supply and are positioned at least partially within the cleaning pad, whereby the electrolytic cell is formed at least in part in the cleaning pad.

16. The surface cleaning device according to claim 15 wherein the cleaning pad comprises a sponge that is adapted to hold the electrolyte solution.

17. The surface cleaning device according to claim 16 and further comprising a tank for a cleaning solution and the tank is fluidly connected to the cleaning pad.

18. The surface cleaning device according to claim 15 wherein the power supply includes a rechargeable battery.

19. The surface cleaning device according to claim 15 wherein power supply is a disposable battery.

20. The surface cleaning device according to claim 15 wherein the power supply is derived from a power outlet.

21. The surface cleaning device according to claim 1 and further comprising an actuator connected to the electrolytic cell for selectively controlling the generation of bleach.

22. The surface cleaning device according to claim 21 and further comprising an electric pump to move the electrolyte solution between the source and the cleaning pad.

23. The surface cleaning device according to claim 21 and further comprising a squeeze pump to move the electrolyte solution between the source and the cleaning pad.

24. The surface cleaning device according to claim 21 and further comprising a gravity flow system to move the electrolyte solution between the source and the cleaning pad.

25. The surface cleaning device according to claim 1 wherein the electrolyte solution is a mixture of sodium chloride and water.

26. The surface cleaning device according to claim 25 wherein the electrolyte solution further comprises a detergent.