Method and apparatus for increasing the oxygen content of water

• US 6,171,469 B1
• Filed: 10/31/1996
• Issued: 01/09/2001
• Est. Priority Date: 10/31/1996
• Status: Expired due to Fees

• Current Assignee: H2o Technologies Ltd.
• Original Assignee: H2o Technologies Ltd.
• Inventors: Johnson, Troy T., Hough, Gary S.
• Primary Examiner(s): Phasge, Arun S.
• Application Number:
  US08/744,706
• Time in Patent Office: 1,531 Days
• Field of Search: 205/743, 205/744, 205/755, 205/756, 204/229, 204/275, 204/275.1, 204/229.2, 204/229.4
• US Class Current: 205/743
• CPC Class Codes: C02F 1/46104 Devices therefor; Their operating or servicing
• CPC Class Codes: C02F 1/4672 by electrooxydation
• CPC Class Codes: C02F 1/727 using pure oxygen or oxygen rich gas
• CPC Class Codes: C02F 2001/46133 characterised by the material
• CPC Class Codes: C02F 2001/46152 characterised by the shape or form
• CPC Class Codes: C02F 2201/46185 Recycling the cathodic or anodic feed
• CPC Class Codes: C02F 2209/22 O2

Abstract

A method and apparatus for increasing the oxygen content of water have been shown and described. A volume of water is passed between the electrodes of an electrolytic cell, a portion of the volume of water converting to dissolved oxygen. A desired level of dissolved oxygen is selected, and the number of times the volume of water must flow through the electrolytic cell to ensure that the volume of water contains the selected percentage of dissolved oxygen is also selected. The volume of water is then forced through the cell the selected number of times, such that the volume of water contains the desired percentage of dissolved oxygen. The electrolytic cell is in fluid communication with a tank and a pump, the pump drawing the volume of water from the tank and forcing it through the electrolytic cell and back into the tank. The volume of water is thereby recirculated through the electrolytic cell by the pump for the selected number of times.

Claims

1. Apparatus for increasing the dissolved oxygen content of a volume of water comprising:

an electrolytic cell coupled to a source of current;

a tank for holding a selected volume of water in fluid communication with the electrolytic cell

a pump in fluid communication with the volume of water, the pump forcing the entire volume of water to flow through the electrolytic cell a selected number of times

a timer circuit coupled to the pump for setting the length of time the pump is on, the on time of the pump being selected based on the tank volume to cause the water in the tank to circulate a selected number of times through the cell and stopping the circulation water after it has circulated the selected number of times.

2. The apparatus according to claim 1 wherein the pump is variable such that the volume of water is forced to flow through the electrolytic cell at a selected rate.

3. The apparatus according to claim 1, further comprising tubing provided between the pump, the electrolytic cell and the tank, an inner diameter of the tubing being selected to ensure a desired flow rate.

4. The apparatus according to claim 3 wherein the diameter of the tubing is 0.5 inch.

5. The apparatus according to claim 3 wherein the tubing is configured to provide an unrestricted flow path between the tank and the electrolytic cell.

6. The apparatus according to claim 1, wherein the selected number of times is greater than nineteen (19).

7. The apparatus according to claim 1, wherein the selected number of times is less than twenty-four (24).

8. The apparatus according to claim 1, wherein the selected number of times is less than twenty (20).

9. The apparatus according to claim 1, wherein the selected number of times is greater than fourteen (14) and less than twenty four (24).