FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
As amended by the Patents (Amendment) Act, 2005
&
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION
(See section 10 and rule 13)
TITLE OF THE INVENTION
AN IMPROVED GEYSER WITH WATER MIXING CHAMBER
APPLICANTS
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTORS
Ekram Samsul and Nirody Jai Shankar; both of Crompton Greaves Ltd, Electronic Design Centre (EDC), Aryabhatta Building, CG Global R&D Centre, Kanjurmarg (East), Mumbai - 400042, Maharashtra, India; Siddiquee Qutbuddin and Sawarkar Arvind; both of Crompton Greaves Ltd, Technology Information Centre (TIC), Global R&D Centre, Kanjurmarg (East), Mumbai - 400042, Maharashtra, India; and Nadkarni Mayur of Crompton Greaves Ltd, Appliances Division, Kanjurmarg (East), Mumbai - 400042, Maharashtra, India; all Indian Nationals
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the nature of this
invention and the manner in which it is to be performed.

FIELD OF THE INVENTION:
This invention relates to the field of appliances.
Particularly, this invention relates to an improved geyser with water mixing chamber.
BACKGROUND OF THE INVENTION:
Geysers are water heating apparatus used to instantaneous heating of water before being passed out through a pipe. It receives water from one pipe, almost instantaneously heats it without much storage, and passes it out through another pipe. A water heater, on the other hand, receives a defined quantity of water in a storage insulated container enabled to heat the water.
In the known art, there have been geysers with multiple functions. However, there have been no geysers which could automatically adjust the temperature of the water which is required for various purposes such as bathing, washing or cleaning etc.
In the earlier geysers, the user had to switch on the geyser for enabling it to heat the water and then while using the water for any further application, the users needed to adjust the temperature of the water by simultaneously closing and opening the tap of the pipes of hot water and cold water. At times, this activity can be very time consuming and cause lot of inconvenience to the users. Hence, to overcome these problems, there is a need come up with a geyser which can is adapted to solve the above mentioned problems.
Normally, water geysers have a single chamber with an inlet for normal water and an outlet for exiting the hot water. When a geyser is put on, hot

water is received when the respective tap is open. Simultaneously, one opens the tap for cold water and slowly adjusts (by mixing through a central water mixer) the final desired water output based on individual's preference (of water hotness / coldness). However, this task causes lot of inconvenience to a user.
PRIOR ART:
GB191000642 discloses a non-electric water heater with a separate chamber for heating and mixing hot and cold water. The mixture is maintained at a constant temperature, capable of being adjusted by way of a valve.
OBJECTS OF THE INVENTION:
An object of the invention is to provide an improved geyser with water mixing chamber which can efficiently control the temperature of the water which exits through the geyser.
Another object of the invention is to provide an improved geyser with water mixing chamber which can enable the user to have water with a desired temperature.
Yet another object of the invention is to provide an improved geyser with water mixing chamber capable of providing comfort to the user in terms of keeping the outlet closed until the water temperature is in the desired temperature range.
Still another object of the invention is to provide an improved geyser with water mixing chamber which can save lot of water by allowing automatic

controlling of water unlike the current geysers where the user keeps adjusting the water temperature of the desired output manually.
Yet another object of the invention is to provide an improved geyser with water mixing chamber which will save the time of the users by automatically controlling the temperature of the water unlike the current geysers which forces the users to invest some time for adjustment of water temperature as
required.
SUMMARY OF THE INVENTION:
According to this invention there is provided an improved geyser with water mixing chamber, said geyser comprises:
a. first portion of a storage chamber adapted to receive hot water by a
hot inlet pipe and further adapted to receive cold water by a cold inlet
pipe;
b. second portion of a storage chamber adapted to receive said hot water
and said cold water simultaneously, said second portion located
operatively below said first portion;
c. set of rotary blades fitted in said mixing chamber such that they are
activated as water falls from said first portion through an aperture on
to the blades placed in said second portion, wherein flow of water
between said first portion of the storage chamber and said second
portion of the storage chamber causes said rotary blades to rotate such
that the rotary motion of the blades results in thorough mixing of the
hot and cold water in said second portion; and
d. outlet pipe located at said second portion adapted to allow outlet
passage of mixed water according to user specification.

Typically, said second portion is a mixing chamber.
Typically, said chamber includes an aperture partition to partition said first portion from said second portion, said aperture adapted to allow received hot water and received cold water to pass through to said second chamber.
Preferably, said rotary blades are electric power driven rotary blades.
Preferably, said geyser includes controller module adapted to control flow of water into said first portion through said hot pipe and through said cold pipe, independently and further to control flow of water through said outlet pipe.
Preferably, said geyser includes sensing means installed at said outlet pipe for sensing temperature of outlet mixed water and to relay said sensed temperature information to said controller module to control flow and volume of water based on user-defined parameters for achieving mixed water pre-set temperature.
Preferably, said geyser includes sensing means installed at said hot inlet pipe to sense temperature of hot water and to relay said sensed temperature information to said controller module to control flow and volume of water based on user-defined parameters for achieving mixed water pre-set temperature.
Preferably, said geyser includes sensing means installed at said cold inlet pipe to sense temperature of cold water and to relay said sensed temperature information to said controller module to control flow and volume of water

based on user-defined parameters for achieving mixed water pre-set temperature.
Preferably, said geyser includes temperature sensor controller outlet means for allowing control of water through outlet.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
The invention will now be described in relation to the accompanying drawings, in which:
Figure 1 illustrates a perspective view of the improved geyser with water mixing chamber;
Figure 2 illustrates a sectional front view of the improved geyser with water mixing chamber of Figure 1; and
Figure 3 illustrates a top section view of the mixing chamber of the improved geyser with water mixing chamber of Figure 1.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
According to the invention there is provided an improved geyser with water mixing chamber.
Figure 1 illustrates a perspective view of the improved geyser with water mixing chamber.
Figure 2 illustrates a sectional front view of the improved geyser with water mixing chamber of Figure 1.

In accordance with an embodiment of this invention, there is provided a first portion (1) of a storage chamber (10) which receives hot water by a hot inlet pipe (4) and also receives cold water by the cool inlet pipe (3). The hot and cold water come together in the first portion (1), Water then flows down to the second portion i.e. the mixing chamber (2) though the aperture between heating chamber (1) and mixing chamber (2).
Figure 3 illustrates a top section view of the mixing chamber of the improved geyser with water mixing chamber (2) of Figure 1.
In accordance with another embodiment of this invention, there is provided a set of rotary blades (5) fitted in the mixing chamber (2) such that they are activated as water falls from the first chamber (1) through the aperture on to the blades placed in the mixing chamber (2). The flow of water between first portion (1) of the storage chamber (10) and mixing chamber (2) causes the rotary blades (5) to rotate. The rotary motion of the blades (5) results in thorough mixing of the hot and cold water in the mixing chamber (2). The water mixture leaves the mixing chamber (2) through the outlet (6).
In accordance with yet another embodiment of this invention, electric power is used to rotate the rotary blades (5) in the mixing chamber (2). The rotary motion of the blades (5) results in thorough mixing of the hot and cold water in the mixing chamber (2).
In accordance with still another embodiment of this invention, the geyser also comprises controller module to control flow of water into the first portion (1) through said hot pipe and said cold pipe, independently and further to control flow of water through the outlet pipe.

Reference numeral 9 refers to the partition between first portion 1 and mixing chamber 2 and reference numeral 7 refers to an aperture between first portion 1 and mixing chamber 2.
In accordance with an additional embodiment of this invention, there is provided a sensing means installed at the outlet means of the mixing chamber for providing information to the controlling module relating to sensed temperature of water so that inlet hot water and inlet cold water proportions may be controlled. Understandably, sensing means are also installed at the hot inlet pipe (4) and the cold inlet pipe (3) which sensed readings are sent to the controller module.
In accordance with this invention, said geyser mixing chamber will mix water and release it through a single outlet. The opening/closing of the outlet of smaller chamber will be controlled by a temperature sensor. As per user requirement (for example 25 degree set by user), microcontroller will provide the input to temperature sensor to monitor temperature of smaller chamber; once temperature of the water in smaller chamber will reach to that of the user range of temperature requirement; outlet of smaller chamber will get open.
Once outlet of the mixing chamber gets opened, it may not close if temperature of the water in mixing chambers is within the range of user requirement. If temperature of the water in mixing chamber does not fall within the range of water as per requirement, then outlet may remain closed.
While this detailed description has disclosed certain specific embodiments of the present invention for illustrative purposes, various modifications will be

apparent to those skilled in the art which do nc>t constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

We claim,
1. An improved geyser with water mixing chamber, said geyser comprising:
a. first portion of a storage chamber adapted to receive hot water by a
hot inlet pipe and further adapted to receive cold water by a cold inlet
pipe;
b. second portion of a storage chamber adapted to receive said hot water
and said cold water simultaneously, said second portion located
operatively below said first portion;
c. set of rotary blades fitted in said mixing chamber such that they are
activated as water falls from said first portion through an aperture on
to the blades placed in said second portion, wherein flow of water
between said first portion of the storage chamber and said second
portion of the storage chamber causes said rotary blades to rotate such
that the rotary motion of the blades results in thorough mixing of the
hot and cold water in said second portion; and
d. outlet pipe located at said second portion adapted to allow outlet
passage of mixed water according to user specification.
2. A geyser as claimed in claim 1 wherein, said second portion is a mixing
chamber.
3. A geyser as claimed in claim 1 wherein, said chamber includes an aperture partition to partition said first portion from said second portion, said aperture adapted to allow received hot water and received cold water to pass through to said second chamber.
4. A geyser as claimed in claim 1 wherein, said rotary blades are electric power driven rotary blades.
5. A geyser as claimed in claim 1 wherein, said geyser includes controller module adapted to control flow of water into said first portion through

said hot pipe and through said cold pipe, independently and further to control flow of water through said outlet pipe.
6. A geyser as claimed in claim 1 wherein, said geyser includes sensing means installed at said outlet pipe for sensing temperature of outlet mixed water and to relay said sensed temperature information to said controller module to control flow and volume of water based on user-defined parameters for achieving mixed water pre-set temperature.
7. A geyser as claimed in claim 1 wherein, said geyser includes sensing means installed at said hot inlet pipe to sense temperature of hot water and to relay said sensed temperature information to said controller module to control flow and volume of water based on user-defined parameters for achieving mixed water pre-set temperature.
8. A geyser as claimed in claim 1 wherein, said geyser includes sensing means installed at said cold inlet pipe to sense temperature of cold water and to relay said sensed temperature information to said controller module to control flow and volume of water based on user-defined parameters for achieving mixed water pre-set temperature.
9. A geyser as claimed in claim 1 wherein, said geyser includes temperature sensor controller outlet means for allowing control of water through outlet.