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Патент USA US2404967

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July 39, 1946.
J“ a LEVY
2,494,967
PORTABLE WATER PURIFICATION AND FILTRATION UNIT
Filed April .14, 1943
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Patented July 30, 1946
2,404,967
UNITED STATES PATENT OFFICE
2,404,967
PORTABLE WATER PURIFICATION AND
FILTRATION UNIT
Jerome B. Levy, N ewark, N. .L, assignor, by direct
and mesne assignments, to Tite?ex, Inc.,
Newark, N. J., a corporation of New Jersey
' Application April 14, 1943, Serial No. 483,065
3 Claims.
(Cl. 210-—16)
1
2
My invention relates to a portable apparatus
for purifying and clarifying small quantities of
The fourth unit, indicated at 36, has a stem
31 passing centrally therethrough, on which a
?lter stone 38 is mounted. One end of the stem
has a central bore 48, and perforations 42 com
municating between the bore and the inner sur
face of the ?lter stone.
water.
It is an object of my invention to provide an
apparatus the various units of which, together
with chemicals for operation, can be arranged
together to form one compact package when not
in use, making shipment or storage relatively
In use, the four units are set up as shown in
Figure 1, being interconnected by suitable pipes
'
and ?ttings indicated generally as 43.
A further object is the provision of a portable 10
The tank I ll and the vessels 22 and 24 are ?lled
?ltration apparatus which is self-contained. re
with raw water. A proper quantity of calcium
quiring no power for operation other than hand
hypochl-oride is introduced into the water in tank
power.
it. The material is agitated and allowed to re
Still another object is to provide water ?ltra
main in contact with the water for about ten
tion equipment which can be set up and oper
minutes. The chlorine released destroys the bac
ated by anyone, with a minimum of experience,
teria and B. 0012‘ present.
and without training in the technical or theoreti
In the meantime, a mixture of activated car
cal aspects of Water puri?cation. Any person
bon and diatomaceous earth may be introduced
who can follow simple instructions can operate
into the water in vessel 22, the carbon serving to
my apparatus with successful results.
absorb taste, color and odors of the water, as
With these and other objects in view, my in
‘well as excess chlorine in water subsequently
vention consists in the construction, arrange
coming from tank l0.
ment and combination of the various parts of
Into the water in vessel 25 is introduced a
my device whereby the objects contemplated are
quantity of diatomaceous silica, or ?lter-aid, suf_
attained, as hereinafter more fully set forth,
?cient to put a coating of at least 1% inch upon
pointed out in my claims and illustrated in the
the ?lter stone in unit 35.
accompanying drawing, in which:
The covers are put in place on all the units,
Figure l is
vertical sectional view taken
and the plunger-s 34 and 35 at the beginning of
through my apparatus, shown as set up ready
the ?lter process stand at the top, as shown in
for the beginning of a water puri?cation opera 30 full lines in Figure 1.
easy.
tion;
After the calcium hypochloride has been in
the water in tank ii! for ten minutes, with the
valves 44 and 46 closed, I apply a hand air pump
Figure 2 is a view showing my equipment dis
assembled and packed for shipment or storage,
the outer container being shown in vertical sec
tion to disclose the arrangement of the other ~
units inside; and
Figure 3 is an elevational view of a modi?ed ar
to the nipple l8 and pump up a pressure of three
to ?ve pounds per square inch, as indicated on
the gauge (4. When the valve 44 is opened,
water will flow out of tank It] into the top of ves
rangement of my apparatus.
sell 22, above the plunger 34. It will force the
In the drawing I have used the reference nu
plunger downward, driving ahead of it the water
meral iii to indicate a relatively large supply 40 from unit 22, containing a mixture of activat~
tank. It is provided with a cover plate i2 hav
ed carbon and ?lter-aid. This water in turn
ing a pressure gauge M and a valve stem l5
enters vessel 24, above the plunger 35, and drives
mounted thereon, The valve stem may be the
ahead of it the plunger 35 and the ‘water in ves
same as those used on automobile tires, having a
sel 24 containing clean ?lter-aid. The latter
threaded nipple l8 for connection to a source J C1 water passes into the ?lter unit 36, where the
of pressure, and containing a built-in check valve,
Water passes through the ?lter stone and is dis—
not shown. The cover plate is arranged for fas
‘charged from the hollow end 47 of the stem 32’,
toning to the tank by wing nuts 26, by which a
while the ?lter-aid is retained upon the surface
substantially air-tight ?t may be effected.
of the stone, forming the actual ?lter membrane.
a
Two vessels 22 and 24 are provided with cov~
When the plunger 55 is fully depressed (as
ers 26 and 28, held on by wing nuts 30. Rods 32
and 33 pass through the covers, carrying plunger:
shown in dotted lines), it passes below the out
let ?tting 48 in vessel 24, so that the water above
the plunger may freely pass on through to the
?lter unit, where the mixture of ?lter-aid and
34 and 35.
For convenience and economy, ves~
sels 22 and 24 and their ?ttings may be substan~
tially alike.
" carbon is retained by the ?lter membrane, form...
2,404,967
4
3
ing a secondary coat of suf?cient thickness to
permit effective action of the activated carbon
on the water as it passes through.
It will be understood that the plunger 34
reaches the bottom of its stroke at about the
same time as the plunger 35, and the outlet ?t
ting 49 in vessel 22 is arranged above the top
of the plunger in its depressed position, so that
water from tank M can pass through vessel 22
without obstruction, and on through vessel 24 in
the same way. If desired, the valve 44 may then
be closed and the valve 46 opened so as to there
in the ?gure. The tank is long enough so that
the three units, together with all the necessary
pipe ?ttings and valves 43, and a pump 12 may
be placed inside. Even tools for assembly of the
pipe ?ttings can be included, if desired. The
necessary chemicals for a substantial period of
operation can be carried in the removable-top
vessels 22 and 24. In addition, the construction
of the cover [2 is such that it can be mounted
equally well in inverted position, as shown in
Figure 2.. When, the cover is mounted in this
way, the valve stem and pressure gauge are pro
by allow the water from the tank It to by-pass
the vessels 22 and 2t and flow directly into the
tected, and do not project out where they might
be damaged, or might interfere with convenient
?lter 33.
The resulting package is handy, strong, rugged,
?re-proof and economical of space——all features
The preliminary operations described may be
speeded up by applying manual pressure to the
handles 59 and 51 on the plungers, to help force
the liquid-s through the ?lter. >
'
After the ?lter membrane has been formed as
above, the collection of potable water at the out
let 41 may begin, and air pressure is maintained
storage or transport.
of importance for military use or for shipment
by air.
Some changes may be made in the construc
tion and arrangement of the parts of my device
without departing from the real spirit and pur
in tank l0 until the full supply of water con
pose of my invention, and it is my intention to
the su?ix a. The tank lea has a bottom outlet
52 which leads through a valve 54 to a pipe line
a ?uid, a plunger in each vessel over the fluid
waterline at all times, so that it receives com
plunger so as to urge said plunger downwardly,
conduit means adapted to conduct ?uid under
pressure from said last named vessel upon down~
ward movement of its plunger to the filter unit,
means in each vessel to render the conduits ef
cover by my claims any modi?ed forms of struc
tained therein has been driven through the ?l
ter. The entire equipment can then be cleaned 25 ture or use of mechanical equivalents which may
be reasonably included within their scope.
and re?lled for another cycle.
I claim as my invention:
In Figure 3 is shown a modi?ed arrangement
1. A water treatment apparatus comprising, in
of the apparatus which eliminates the plungers
combination, a tank containing water and adapt
in the intermediate units. The parts in Fig
ed to receive and retain air under pressure, a ?l
ure 3 which are substantially the same as those
ter unit having a porous ?lter stone therein, a
previously described in Figures 1 and 2 are des
plurality of air-tight vessels adapted to contain
ignated by like numerals, with the addition of
therein, conduit means adapted to conduct water
under pressure from said tank to the interior
‘Vessels
56 extending
22a and
to 24a
the have
inlet bottom
of the ?lter
outlets
unit
58 and
of the ?rst of said vessels above the plunger so
as to urge the plunger downwardly, conduit
Gil, leading through check valves 62 and 64 and
means adapted to conduct fluid from the ?rst
into pipeline 5E.
_
‘
Tank lea is provided with a second outlet, des
vessel upon downward movement of its plunger
ignated as 66. This outlet must be above the 40 to the interior of the second vessel above its
pressed air when the tank is put under pressure.
Fittings are provided to run a line from outlet
55 to the top portions of vessels 22a and 24a
through valves 68 and 19, respectively.
Vessels 13a, 22a, and 24a are ?lled with water
and chemicals in the manner previously de~
scribed. With valves 54 and (58 closed, a pres
sure of 10 pounds per square inch, for example, -
fective to conduct water from the tank through
the vessels to the ?lter unit, a valve controlled
by-pas's conduit effective to conduct water directly from the tank to the ?lter unit, and man-v
ual means to actuate the plungers independent
of the pressure within said tank.
is pumped'up in tank Ida. When valve 10 is 50
open, the air pressure will be admitted to ves
sel 24a, causing the water therein, with the ac
2. A water treatment apparatus comprising, in
companying ?lter-aid, to be forced into the ?l
combination, a tank containing water and adapt
ter unit 36a.
ed to receive and retain air under pressure, a ?lter
When all the water in vessel 24a has been
unit having ‘a porous ?lter stone therein, a plu
forced out, valve ‘H1 is closed, valve 63 is opened,
rality of air-tight vessels adapted to contain a
and the process is repeated with the water and
?uid, a plunger in each vessel over the ?uid there
chemicals contained in vessel 22a. After the ?l
in, conduit means adapted to conduct water under
ter-aid and activated carbon in vessel 22a have
pressure from said tank to the interior of the ?rst
been deposited on the ?lter stone in ?lter unit
of said vessels above the plunger so as to urge the
36a, the apparatus is ready for the actual water
plunger downwardly, conduit means adapted to
?ltration process. Valve 88 is closed and valve
conduct ?uid from the ?rst vessel upon downward
54 is opened, running water direct through the
movement of its plunger to the interior of the
line 58 into the ?lter unit. The water ?owing
second vessel above its plunger so as to urge the
out of the ?lter at Ma may be caught in any 65 second plunger downwardly, conduit means
suitable receptacle. As before, it will be found
adapted to conduct ?uid under pressure from
necessary to use the hand pump in order to keep I
said last named vessel upon downward movement
up su?icient pressure in tank Ilia to force the
of its plunger to the ?lter unit, means in each
water steadily through the ?lter until tank Ilia
vessel torender the conduits effective to conduct
is empty.
water from the tank through the vessels to the
One of the advantageous features of my appa
?lter unit, a by-pass conduit effective to conduct
ratus is illustrated particularly in Figure 2. The
water directly from the tank to the ?lter unit,
intermediate units 22 and 24 and the ?lter unit
and valves in saidconduit means and by-pass to
38 are made slightly Smaller than the tank It],
so that they may be placed inside it, as shown 75 control the ?ow therethrough.
2,404,967
5
3. A water treatment apparatus comprising, in
combination, a tank containing water and adapt
ed to receive and retain air under pressure, a
?lter unit having a porous ?lter stone therein, a
plurality of air-tight vessels adapted to contain
a ?uid, a plunger in each vessel over the ?uid
means adapted to conduct ?uid from the lower
end of the ?rst vessel to the upper end of the
interior of the second vessel, conduit means adapt
ed to conduct water under pressure from the
lower end of said last named vessel to the ?lter
unit, means in each vessel to render the conduits
effective to conduct water from the tank through
the vessels to the ?lter unit after the ?uid has
been conducted therefrom, and a valve controlled
therein, conduit means adapted to conduct water
under pressure from said tank to the interior of
the ?rst of said vessels above the plunger so as
to urge the plunger downwardly, conduit means 10 loy-pass conduit effective to conduct water directly
from the tank to the ?lter unit.
adapted to conduct ?uid from the ?rst vessel
6. A water treatment apparatus comprising, in
upon downward movement of its plunger to the
combination,
a tank containing water adapted
interior of the second vessel above its plunger so
to receive and retain air under pressure, a ?lter
as to urge the second plunger downwardly, con
duit means adapted to conduct ?uid under pres 15 unit having a porous ?lter stone therein, a plu
rality of air-tight vessels adapted to contain a
sure from said last named vessel upon downward
?uid, a plunger in each vessel, means to operate
movement of its plunger to the ?lter unit, means
the plunger of each vessel to force the ?uids
in each vessel to render the conduits effective to
through outlets in said vessels, conduit means
conduct water from the tank through the vessels
to the ?lter unit, and a by-pass conduit effective 20 adapted to conduct the ?uid from said outlets to
said ?lter unit, conduit means to conduct water
to conduct water directly from the tank to the
under pressure from said tank through said ves
?lter unit.
sels to the ?lter unit, and a by-pass effective to
4. A water treatment apparatus comprising, in
conduct water directly from the tank to the ?lter
combination, a tank containing water and adapt
unit.
ed to receive and retain air under pressure, a
7. A water treating apparatus comprising, in
?lter unit having a porous ?lter stone therein,
combination, a ?lter, a tank containing water
a plurality of air-tight vessels adapted to contain
and adapted to receive and retain air under pres
a ?uid, a plunger in each vessel over the ?uid
sure for delivering water to said ?lter, two vessels
therein, conduit means adapted to conduct water
containing ?uid treating materials to be injected
under pressure from said tank to the interior of
into water delivered to said ?lter, and means re
the ?rst of said vessels above the plunger so as
sponsive to the air pressure in the tank to pro~
to urge the plunger downwardly, conduit means
duce a flow of ?uid treating materials from the
adapted to conduct ?uid from the ?rst vessel
vessels to the ?lter, the ?ow of ?uid treating
upon downward movement of its plunger to the
materials taking place selectively ‘from one vessel
interior of the second vessel above its plunger so
to the ?lter and from the second vessel through
as to urge the second plunger downwardly, con
the ?rst vessel to said ?lter.
duit means adapted to conduct ?uid under pres
8. A water treating apparatus comprising, in
sure from said last named vessel upon downward
combination, a ?lter, a tank containing water and
movement of its plunger to the ?lter unit, and
means in each vessel to render the conduits e?ec 40 adapted to receive and retain air under pressure
for delivering water to said ?lter, a pair of vessels
tive to conduct water from the tank through the
containing ?uid treating materials to be injected
vessels to the ?lter unit.
into water delivered from said tank to said ?lter,
5. A water treatment apparatus comprising, in
means responsive to the air pressure in the tank
combination, a tank containing water and adapt
ed to receive and retain air under pressure, a 45 to produce a ?ow of ?uid treating materials of
one vessel to a second vessel and to discharge the
?lter unit having a porous ?lter stone therein,
material from the second vessel into the water
a plurality of air-tight vessels adapted to contain
entering the ?lter.
a ?uid, conduit means adapted to conduct water
JEROME B. LEVY.
under pressure from said tank to the upper end
of the interior of the ?rst of said vessels, conduit 50
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