Method and apparatus for operation of pool cleaner with integral chlorine generator

• US 8,307,484 B2
• Filed: 08/10/2011
• Issued: 11/13/2012
• Est. Priority Date: 09/15/2004
• Status: Active Grant

• Current Assignee: Zodiac Pool Systems, LLC (Fluidra, S.A.)
• Original Assignee: Aqua Products Incorporated
• Inventors: Porat, Joseph
• Primary Examiner(s): ZHENG, LOIS L
• Application Number:
  US13/207,132
• Publication Number:
  US 20110290707A1
• Time in Patent Office: 461 Days
• Field of Search: 15/17, 204/196.02, 204/228.1, 204/228.6, 204/229.4, 204/278.5, 204/672, 205/359, 205/411, 205/459, 205/556, 205742-743, 210753-754
• US Class Current: 15/1.7
• CPC Class Codes: C02F 1/4674 with halogen or compound of halogens, e.g. chlorine, bromine
• CPC Class Codes: C02F 2103/42 from bathing facilities, e.g. swimming pools
• CPC Class Codes: C02F 2201/008 Mobile apparatus and plants, e.g. mounted on a vehicle for biological treatment C02F2203/008
• CPC Class Codes: C02F 2201/4618 Supplying or removing reactants or electrolyte
• CPC Class Codes: C02F 2303/04 Disinfection
• CPC Class Codes: C02F 2305/02 Specific form of oxidant
• CPC Class Codes: C02F 2307/12 as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
• CPC Class Codes: E04H 4/1281 Devices for distributing chemical products in the water of swimming pools
• CPC Class Codes: E04H 4/1654 Self-propelled cleaners
• CPC Class Codes: G06Q 20/3255 using mobile network messaging services for payment, e.g. SMS

Abstract

An automated self-propelled pool cleaner having a housing, a water pump for moving water through the housing, drive means for moving the pool cleaner over the surface of the salt water pool to be cleaned, and an integral electrochemical chlorine generator mounted in the housing, includes a processor/controller that is programmed to activate the chlorine generator, the pump and drive means in predetermined operational sequences that minimize wear and tear on the water pump and drive means, while at the same time distribute and maintain a safe level of sanitizing chlorine in the pool, to thereby obviate the need for an in-line chlorinator or other chemical additive treatments; an optional automated sensor device can be provided to activate a secondary maintenance program which enables the pool cleaner to operate over prolonged periods of time as the sole means for filtering and sanitizing the pool water. An electrochemical cell manual mounting system permits the cell to be secured in place for operation and manually removed for maintenance, repair or replacement by the user without special tools or training.

Claims

1. An automated self-propelled pool cleaner having a housing, a pump for moving water through the housing, drive means for moving the pool cleaner over at least the bottom wall of a pool;

an integral electrochemical chlorine generator positioned in said housing for producing bactericidal chlorine, the electrochemical chlorine generator comprising a plurality of negative and positive conductive plates arranged in a parallel spaced-part array to form a plurality of passageways, the array being positioned in the flow path of water moving through the housing;

an outlet for discharging water containing bactericidal chlorine produced by the electrochemical chlorine generator into the water proximate the exterior of the pool cleaner housing;

a source of electrical power operatively connected to the electrochemical chlorine generator; and

programmable control means for initiating and terminating the operation of the chlorine generator, the pump and the drive means, the control means programmed for;

a. activate the pump and the drive means to thereby move the pool cleaner across the surface of a wall of the pool to perform a programmed cleaning cycle;

b. initiate the operation of the electrochemical chlorine generator to thereby produce bactericidal chlorine from a chlorine-containing compound dissolved in the water during the cleaning cycle;

c. discharge bactericidal chlorine-containing water from the pool cleaner housing in a turbulent flow to mix with the water in the pool;

d. deactivate the drive means and the pump at the end of the cleaning cycle while maintaining the operation of the electrochemical chlorine generator;

e. activate the pump for intervals of several seconds every several minutes following the end of the cleaning cycle for a period of about one hour;

f. activate the drive means and the pump for a period of time ranging from 2 to 4 minutes to thereby relocate the pool cleaner in the pool;

g. activate the pump for intervals of several seconds every several minutes after the pool cleaner is relocated; and

h. repeat steps (f) and (g) for a predetermined period of time.

2. The pool cleaner of claim 1 in which the pump is inside the housing or external to the pool.

3. The pool cleaner of claim 1, wherein the source of electrical power is a remote power supply and an electric cable is connected to the electrochemical chlorine generator in the interior of the housing.

4. The pool cleaner of claim 3, wherein the control means includes a switch on the remote power supply and the switch is manually or electronically activated.

5. The pool cleaner of claim 3, wherein the programmable control means is remote from the pool cleaner and is operatively connected to the power supply and the electric cable includes conductors connected to the pump and the drive means.

6. The pool cleaner of claim 1, wherein the control means includes a controller operatively connected to a signal receiver, whereby a control signal received from a remote relay transmitter is processed to initiate and terminate the operation of the electrochemical chlorine generator in response to information corresponding to the concentration of bactericidal chlorine in the pool water.

7. The pool cleaner of claim 6 that includes an electronic probe in contact with the pool water for determining the concentration of bactericidal chlorine and transmitting a signal to the relay transmitter for processing and transmission of an appropriate control signal to the controller.

8. The pool cleaner of claim 6, wherein the signal receiver is an antenna extending from the controller to the surface of the pool water.

9. The pool cleaner of claim 6 in which the controller is programmed to institute a secondary electrochemical generator operating program when a predetermined level of chlorine is signaled, the secondary operating program including steps for:

a. activating the electrochemical chlorine generator to operate for a period of 30 minutes every 2 hours;

b. activating the drive means and the pump for a period of time ranging from 2 to 4 minutes at internals of about one hour to thereby relocate the pool cleaner in the pool; and

c. activating the pump after the pool cleaner is relocated for intervals of several seconds every several minutes for a period of about one hour.

10. The pool cleaner of claim 1 that includes a chlorine monitoring system mounted inside the pool cleaner or attached to the exterior of the pool cleaner housing, the monitoring system generating electrical signals corresponding to the concentration of bactericidal chlorine in the pool water, which signals are transmitted as feedback through wire connections to the control means to thereby initiate and terminate the operation of the electrochemical chlorine generator, whereby the concentration of bactericidal chlorine in the pool water is maintained in a predetermined range.

11. An automated system for establishing and maintaining a predetermined concentration of bactericidal chlorine in a swimming pool, the system comprising:

a. an automated self-propelled pool cleaner having a housing, a pump for moving water through the housing, drive means for moving the pool cleaner over the surface of the pool to be cleaned, an integral electrochemical chlorine generator mounted in the housing, the electrochemical chlorine generator comprising a plurality of negative and positive conductive plates arranged in a parallel spaced-apart array to form a plurality of passageways, the array being positioned in the flow path of water moving through the housing;

b. a source of electrical power operatively connected to the electrochemical chlorine generator;

c. programmed control means for initiating and terminating the functioning of the electrochemical chlorine generator, the pump and the drive means, wherein the control means are programmed (i) to activate the electrochemical chlorine generator to operate for a period of thirty minutes every two hours, and (ii) to activate the drive means and the pump for a period of time ranging from 2 to 4 minutes to thereby relocate the pool cleaner in the pool at intervals of about one hour, and (iii) to activate the pump for intervals of several seconds every several minutes for a period of about one hour after the pool cleaner is relocated.

12. The system of claim 11, wherein the source of electrical power includes at least one on-board battery and at least one relay which directs power from the at least one battery to the water pump, drive means and chlorine generator, the at least one relay being operable in response to signals received from the controller.

13. The system of claim 12 which includes two batteries.