Water purifier abstract
The water purification system and associated method of the present
invention consists of a generally self-contained, highly maneuverable,
portable water purification system. Maneuverability is enhanced
by mounting a cabinet on wheels or on a cart that may be easily
guided to a water supply. Power is supplied to the system in a solar
cell. The power is used to operate the pump of the system and to
power the purifying radiation source. The system can also be used
as a portable power source in addition to its capacity as a water
Water purifier claims
What is claimed is:
1. A portable, highly maneuverable, water purification system,
comprising: a mobile cabinet having a water purification system
including: a water conduit; a plurality of filters connected by
said conduit; at least one ultraviolet (UV) light source located
within the cabinet downstream from the filters connected to said
conduit; solar power source; and pump connected to said conduit
and said solar power source.
2. The system of claim 1 wherein the plurality of filters includes
at least one screen filter for screening solid larger particulates
in the water.
3. The system of claim 2 wherein the plurality of filters includes
a carbon filter located downstream from the screen filter.
4. The system of claim 1 further comprising: a supply hose; and
a pre-strainer of the water to be purified located between the supply
hose and an ingress.
5. The system of claim 1 further comprising a battery power supply
located within the cabinet.
6. The system of claim 5 further comprising a pump, wherein power
to the pump is supplied after power is supplied to the UV light.
7. The system of claim 6 wherein the pump brings the water to
be purified to at least approximately 40 psi of head pressure.
8. The system of claim 5 further comprising a power receptacle
for providing electrical power located outside the cabinet.
9. The system of claim 5 further comprising a solar cell in electronic
communication with the power supply.
10. The system of claim 5 wherein the power supply is adaptable
to electronic communication with an outside power source.
11. The system of claim 5 further comprising a malfunction indicator
for the UV light.
12. The system of claim 1 further comprising: wheels for rolling
the system, and a handle mechanism for directing the cabinet.
13. The system of claim 1 wherein the interior of the cabinet
is protected with a closeable mechanism.
14. A portable, highly maneuverable apparatus for purifying water,
comprising: cabinet means for receiving water to be purified, including;
means for filtering the water -located inside the cabinet means;
means for exposing the water to purifying radiation located within
the cabinet downstream from the filters; and pump means powered
by solar power.
15. The apparatus of claim 14 further comprising: means for supplying
water to the cabinet means; and means for supplying power to means
for supplying water located within the cabinet means.
16. The apparatus of claim 15 further comprising means for supplying
power to the means for exposing the water to purifying radiation.
17. The apparatus of claim 15 further comprising a means for obtaining
solar power for charging the means for supplying power.
18. The apparatus of claim 14 further comprising wheels for rolling
the system; and a handle mechanism for directing the cabinet.
19. A method of purifying water within a portable, highly maneuverable
cabinet system, comprising the steps of: providing a portable, highly
maneuverable cabinet for the purification of water; filtering the
water inside the cabinet with a series of filters; exposing the
water to at least one ultraviolet (UV) light source located within
the cabinet downstream from the filtering step; and using solar
energy to supply power.
20. The method of claim 19 wherein the cabinet includes a solar
power supply and battery.
21. The method of claim 20 wherein the cabinet is capable of operating
as a portable power source.
Water purifier description
BACKGROUND OF THE INVENTION
 1. Field of the Invention
 The invention relates generally to a portable water purification
system, and specifically to a self-contained, highly mobile, solar
powered portable water purification system.
 2. Description of Related Art
 The importance of having water purification systems are
especially critical in third world countries or remote areas which
have concentrations of people for human survival. Numerous different
types of water purification systems have been devised which include
chemicals such as chlorine, ozone and filters to make the water
consumable by human beings. Mobile water filtration and chlorination
systems are known in the prior art. U.S. Pat. No. 5399260 issued
to Eldredge, et al. shows a field portable water purification system.
This system uses a diesel engine to transport and draw water from
a source through the filtration system into some sort of container.
U.S. Pat. No. 5547584 issued to Capehart shows a transportable
self-contained water purification system. Some of the drawbacks
of the prior art units are that they require diesel fuel for diesel
motors and the use of a combustion engine as a power source adds
to the overall weight of the unit decreasing its mobility especially
in remote areas. In remote regions and especially in some third
world countries even getting fuel for combustion engines is a difficult
 The present invention overcomes problems with the prior
art by providing a highly mobile water purification system that
includes a self-contained power supply that provides for solar power
to an electrical battery that powers an electrical motor that is
used for the pumping action in the purification process. The system
also includes ultraviolet radiation for purification in addition
to a plurality of filters that remove different undesirable particulates
from the water supply. The system is highly mobile by a single person
and can be directed in remote areas through woods and other type
areas. The system may also provide additional energy from its solar
cells to other equipment if necessary.
SUMMARY OF INVENTION
 A self-contained, highly mobile, compact and relatively
light weight portable water purification system for remote geographical
areas that lack a power supply comprising a rigid cabinet the exterior
of the cabinet covered with solar cells, a first inlet pipe for
receiving contaminated water, a pump mounted inside said cabinet,
a plurality of water filters connected together serially to perform
filtration on the pumped water, an ultraviolet radiation chamber
that radiates ultraviolet rays into the water being purified at
the final stage and an outlet pipe for receiving and dispensing
 Mounted inside the cabinet is also a battery and an electrical
system for providing power to the water pump and a delay circuit
that allows the ultraviolet radiation unit to warm up for approximately
ten seconds before the pump is turned on. The exterior of the housing
may be made of a any material including but not limited to plastic
or metal and has mounted on the exterior surfaces (to cover as much
surface area as possible) a plurality of solar cells or solar panels
containing cells each of which generate electricity when subjected
to sun light and which provide the electricity to the storage battery
(which is typically a 12 volt battery). An inverter may be used
to provide a 120 volt A/C current to the pump or to an electrical
receptacle mounted on the exterior of the housing to receive an
electric plug to power accessory equipment. In areas of high sun
light, the system may also be used as an electrical supply source
when sufficient electrical power is available for purification.
 Attached to the cabinet is at least one axle with two large
wheels or a plurality of wheels depending on the type of environment
anticipated. A manual handle bar that is removable, collapsible
and telescopic is attached to the upper portion or side of the cabinet
to allow the device to be manually wheeled in any desired direction.
By using the exterior cabinet surfaces, additional solar cells can
be added and disposed and panels could be mechanically hinged to
the device to provide for additional solar power under certain circumstances,
in areas of low sun light.
 In using the invention, the entire device is manually wheeled
to a suitable area that has a polluted water supply that is typically
fresh water and not salt water. A hose is disposed in the polluted
water supply. The power switch is turned on. The pump turn on is
delayed about ten seconds to allow the ultraviolet radiation unit
to get up to full power in the UV chamber. A series of water filters
and strainers are provided in a conduit path of the water supply
to be purified mounted inside the housing for multiple stages such
as first stage filter, a second stage filter and a third stage filter.
The inlet water is carried in a plastic PVC pipe from the inlet
hose to the outlet hose through each filter and the UV chamber for
ultraviolet radiation for killing bacteria. The amount of gallons
per minute is a function of the diameter of the pipe, the size of
the pump and the amount of time of transition desired the filters
and through the UV chamber.
 It is an object of this invention to provide a highly mobile,
solar powered fresh water purification system especially for use
in remote and urban areas.
 It is another object of this invention to provide;a highly
mobile solar powered water purification system that can also provide
additional electrical power from solar energy in remote areas in
addition to the water purification.
 Any yet still another object of this invention is to provide
a highly efficient self-contained water purification system that
can be easily maneuvered in remote and urban areas that does not
require petroleum fuel sources for energy.
 In accordance with these and other objects which will become
apparent hereinafter, the instant invention will now be described
with particular reference to the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS
 FIG. 1 shows a schematic diagram of the present invention
including the purification system mounted inside a mobile cabinet.
 FIG. 2 shows a perspective view of the present invention.
 FIG. 3 shows a perspective view of the present invention.
 Referring now to the drawings and especially FIG. 1 the
present invention is shown schematically mounted in a housing 24
that contains strainers S1 and S2 connected together by the inlet
pipe 16. An inlet hose 12 draws water from a source 44 that is polluted,
that is fresh water but not drinkable by human beings for various
pollution problems. The inlet hose 12 is connected to a fitting
14 that allows the water to flow into pipe 16 within the cabinet
24. A pre-strainer S1 removes the particulates from the inlet water.
An additional strainer S2 can be used connected to pipe 16 as the
water flows from pre-strainer S1 into strainer S2. The source of
the flow energy for the water is a pump P 32 that draws the water
from the inlet hose 12 from source 44 through the entire cabinet
24 as described. The pump P is an electrical pump powered by a battery
46B connected electrically to on/off switch 48 SW. The battery power
46 goes through an inverter 30 that can be used to convert DC to
a 110 volt A/C system. A pump delay element 34 allows the ultraviolet
radiation to "warm up" to full power in the ultraviolet
chamber 36 that contains an ultraviolet radiation source that destroys
bacteria in the water by radiation. By having a ten second delay
ensures that water contained in chamber 36 will be purified through
the ultraviolet radiation. Once the pump 32 is running, water from
screen S2 goes through the pump 32 into a first filter F1. The first
stage filter F1 removes particles down to one micron in size. This
removes any water borne cysts. The water then under pressure leaves
the first stage filter and enters filter F2 which will filter particulates
down to 0.35 microns. This stage cleans most of the turbidity or
dirt and anything else that may get past stage F1. As the water
leaves the filter F2 it enters filter F3 which is solid or granular
carbon filter. The filter F3 polishes the water to a crystal clear
state. It can also sweeten the water for better taste. The carbon
blocked filter F3 removes chlorine and most organic chemicals and
lead. The water then leaves the carbon filter F3 and enters the
fourth stage which is a UV chamber 36. Water in the reactor chamber
36 receives the ultraviolet rays which kills all living organisms
by the DNA exposure to ultraviolet rays within chamber 36. As water
exits the UV chamber 36 it is now pure in the sense that it is
safe for human beings to drink the water. Other filters can be added
to remove specific impurities that are unique to other areas of
the world. A bulk head fitting 20 connected to pipe 16 is in fluid
communication with the exit pipe 22 which can deposit water into
a receptacle 38 either directly or indirectly to collect the purified
 Note also that the battery 46 is connected to a solar cell
C40 which can have numerous solar cells C40 disposed all over the
outside of the cabinet connected by wires to the battery or directly
to the pump wiring. This allows for maximum solar charging of the
battery B. The inverter 30 is used to convert 12 volt battery power
current into 120 volt AC when necessary. This could provide receptacle
28 (which is an external electrical receptacle) to provide additional
power to other accessory machinery in a remote location if there
is excess battery power available. The receptacle also allows for
A/C power to be plugged into the unit if it were available in an
urban location to charge the battery and to drive the pump 32 from
a 110 volt source if available.
 The power control is comprised of the on/off source 48 SW
which is the AC/DC power switch, a pump time delay (which can be
ten seconds or more) 34 to hold the pump off until the ultraviolet
light comes up to full power in the chamber 36. The water passing
through the ultraviolet chamber 36 assumes a 99.9% kill rate of
bacteria. A relay can be used with inverter 30 to block out the
power being provided from two different power sources external and
battery if available. The system may include an indicator light
and an alarm A to alert problems with the ultraviolet radiation
unit. The alarm A is mounted on the outside of the cabinet and connected
electrically to UV unit in chamber 36.
 Referring now to FIG. 2 the outside cabinet or housing
24 of the portable water purifier system is shown. The housing 21
is made of any suitable rectangular material and may have an access
door 54 with hinges 54a. A handle bar 50 is connected to the housing
that allows maneuvering the cabinet 24 which is connected to wheels
26 on each side. The handle bar 50 may fold down or be removable
 The solar cells C40 are mounted on five or six surfaces
of the housing for increased solar power collection to capture as
much solar energy as possible, useful in urban or remote locations.
Thus each side and end panel that makes up housing 24 can include
additional solar cells 40 which are electrically connected to the
battery for charging the battery when not in use.
 FIG. 3 shows portable purifier 1 0 and housing 24 on the
purified water outlet side. The outlet hose 22 is a source of purified
water under pressure for use with a water container. Additional
solar panels C40 can be used. An alarm that can be used to warn
of any problems with the ultraviolet.
 Using the present invention drinkable, portable water can
be obtained from any fresh water source regardless of how polluted
in any remote region that has even a moderate amount of sun light
through the use of the solar cells that collect solar energy to
charge a battery. The mobile unit can also be easily maneuvered
with two large wheels as shown or additional wheels if required
for any type of terrain. The wheels can be solid material such as
rubber, tubeless or tube containing tires. The unit is easy to maneuver
manually because of its light weight since it does not have a huge,
heavy internal combustion engine typically found on other water
 In the electrical wiring of the system if an external power
source is available, a relay locks out one of the two voltage power
sources from being on together that could cause a short.
 There is also the option of mounting a battery charger on
board to speed up the battery recharge cycle if needed. In addition
the system may be used as a portable power source to run accessories
such as a light, radio, tv, or power tools.
 The instant invention has been shown and described herein
in what is considered to be the most practical and preferred embodiment.
It is recognized, however, that departures may be made therefrom
within the scope of the invention and that obvious modifications
will occur to a person skilled in the art.