Automatic toilet bowl treatment device

1. An automatic toilet bowl treatment device, wherein said device comprises:

a fluid reservoir,

a pump means,

a hanger means,

a fluid spray means which is a fluidic oscillator,

a controller means,

a flush sensing means which is at least two metallic or semi-metallic conducting terminals which extend into a cavity present as part of the hanger means, and which cavity is adapted to at least temporarily retain a quantity of flush water and which flush water may thereafter drain out of the cavity, which conducting terminals conduct an electrical signal or current over conductors to the controller means, and,

wherein the entire device is configured so that it can be suspended from, a part of a toilet bowl and further wherein the automatic toilet bowl treatment device delivers a quantity of fluid to the interior of a toilet bowl through the fluid spray means responsive to the flush sensing means and the controller means.

2. An automatic toilet bowl treatment device according to claim 1 wherein the fluid reservoir is a refillable fluid reservoir, or is a fluid reservoir refill cartridge.

3. An automatic toilet bowl treatment device according to claim 2 wherein the fluid reservoir refill cartridge includes a power source.

4. An automatic toilet bowl treatment device according to claim 1 wherein the fluid reservoir is a plurality of fluid reservoirs.

5. An automatic toilet bowl treatment device according to claim 1 wherein the fluid reservoir is non-pressurized.

6. An automatic toilet bowl treatment device according to claim 1 , wherein the flush sensing means is at least two conducting terminals which, when immersed in water provided to the toilet bowl, sense or provide a circuit between the conducting terminals, or a reduction in the resistance between the conducting terminals, which are sensed as a condition and used by the controller means to control one or more functions of the said device.

7. An automatic toilet bowl treatment device according to claim 1 wherein the device includes an air treatment means.

8. An automatic toilet bowl treatment device according to claim 1 , wherein the said device is wholly suspended from the rim of the toilet bowl.

9. An automatic toilet bowl treatment device according to claim 1 which comprises at least two separate fluidic oscillators.

10. A process for the automatic treatment of the interior surfaces of a toilet bowl which process comprises the steps of:

installing an automatic toilet bowl treatment device according to claim 1 , and

operating the device to provide a quantity of a treatment composition at periodic intervals to one or more of the interior surfaces of a toilet bowl.

11. A process according to claim 10 , wherein the process of operating the automatic toilet bowl treatment device to provide a quantity of a treatment composition at periodic intervals to one or more of the interior surfaces of a toilet bowl includes the process steps of:

a) resetting a memory means of the device,

b) sensing the flush cycle of the lavatory appliance and in response thereto, incrementing a flush counter value and storing it in the memory means;

c) determining the value of the flush counter means and if the value of the flush counter meets any user settable condition established by a user, then causing the controller means to operate the device to dispense a quantity of the treatment from the fluid reservoir through the fluidic oscillator.

12. A process according to claim 11 , wherein the user settable condition is a number of flush cycles.

13. A process according to claim 10 , wherein the automatic toilet bowl treatment device is operated such that the controller means allows for a time delay of between 0.1 and 30 seconds following the sensing of a flush cycle, prior to delivering the liquid treatment composition to the interior of the lavatory appliance.

14. A process according to claim 13 , wherein the time delay is between 0.1 and 15 seconds.

15. A process according to claim 10 , wherein the automatic toilet bowl treatment device is operated to dispense a quantity of a liquid treatment composition on a time delay wherein the dispensing of the treatment composition initiates after the majority of the flush water has passed through the lavatory appliance.

16. A process according to claim 10 , wherein 3-8 ml of the liquid treatment composition are dispensed by the device in a dispensing cycle.

17. A process for the automatic treatment of the interior surfaces of a toilet bowl which process comprises the steps of:

installing an automatic toilet bowl treatment device according to claim 1 which further includes a fluidic oscillator as the fluid spray means, and

operating the device to provide a quantity of a treatment composition at periodic intervals to one or more of the interior surfaces of a toilet bowl.

18. A process for the automatic treatment of the interior surfaces of a toilet bowl which process comprises the steps of:

installing an automatic toilet bowl treatment device according to claim 6 , and

operating the device to provide a quantity of a treatment composition at periodic intervals to one or more of the interior surfaces of a toilet bowl.