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Патент USA US3028154

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April 3, 1962
R. M. KING
3,028,150
AERATION MEANS
Filed March 50, 1959
INVENTOR,
'
' RALPH
M. KING
WWW
United States Patent 0 "ice
2
1
3,028,150
Ralph M. King, Stuttgart, Ark, assignor to Layne-Arkan
AERATION MEANS
sas Company, Stuttgart, Ark, a corporation of
Arkansas
3,028,150
Patented Apr. 3, 1962
a device in which the intake of water is discharged
through a ported disc onto a rotatable impeller for out
ward casting against divider elements.
A further object of the invention is to provide such
an aeration device in which the divider elements com
prise a series of concentric mesh cylinders.
Filed Mar. 30, 1959, Ser. No. 862,762
A further object of the invention is to provide such
8 Claims. (Cl. 261-44)
a device in which the concentric mesh cylinders are spaced
at reducing spacings outwardly from the center of the
This invention relates to certain new and useful im
provements in means and devices for aerating water, 10 device.
A further object of the invention is to provide such
particularly for the purpose of removing gases, such as
a device having a nest of mesh cylinders in which the
carbon dioxide, hydrogen sul?de, and other unpleasant
gases, from water in which they may be carried or en
mesh cylinders include a series of battles which are
adapted to divert a ?ow of air through the cylinders into
trained in order that the water may be preliminarily
a tortuous pathway in order to further agitate the ?ow
treated and de-gasi?ed for pleasant human consumption.
of air through the water divided by the system.
The present invention is adapted to provide a compact
A further object of the invention is to provide in gen
and relatively inexpensive device ‘for the purpose of so
eral an improvement in the design, construction and
aerating water passed therethrough for treatment as sub
efficiency of devices for aerating water for human con
stantially to eliminate all of the gases entrained with the
water which is under treatment, the device of the pres 20 sumption.
The means by which the foregoing and other objects
ent invention being of a relatively inexpensive character,
and being of a highly ef?cient nature.
of the present invention are accomplished and the man
ner of their accomplishment will be readily understood
A number of attempts have been made heretofore to
from the following speci?cation upon reference to the
provide for the aeration of water desired for consump~
accompanying drawings, in which:
tion, and these prior attempts have taken many varia
tions in approach. Substantially uniformly they have
resulted in devices of a substantially cumbersome nature
which have proven to be relatively ine?icient in the ac
FIG. 1 is a front elevational view of a typical instal
lation of the aerator of the present invention‘ upon a
complishment of the desired purpose of eliminating from
the water entrained undesirable gases therein, and have in
large measure proven to be commercially unsuccessful.
reservoir with parts broken away for purposes of illus
tration.
FIG. 2 is a vertical view, partly in section and partly
in elevation on an enlarged scale, of the aerator device of
The present invention is primarily based upon the prin
ciple of initially ?nely diffusing an intake of water
the present invention.
yet further divided, thus effectively presenting the gases
for separation from the carrying water through the pas
Referring now to the drawings in which the various
parts ‘are indicated by numerals, the present invention
sage of a flow of air therethro-ugh.
comprises an aeration device 11 which is adapted to re
FIG. 3 is a fragmentary sectional plan view taken as
with which undesired gases are entrained, dispelling the
on the line III—III of FIG. 2; and
?nely diffused water against divider elements in succes 35
FIG. 4 is a sectional plan view taken as on the line
sive pattern in order that the diffused portions may be
IV—IV of FIG. 2.
The present invention envisages the discharge of a ?ow 40 ceive, from a suitable source of supply (not shown), as
of air through a tortuous pathway passing through the
through a pipe 13, water which is intended to be sub
water which has been diffused and divided together with
jected to treatment in the aeration device. Aerator 11
its entrained gases in order that the tortuously proceed
is preferably an open bottomed device which is adapted
ing air may pick up the gases released due to the break
to be mounted in ?ow communication with an accumu
up of the ?uid as it is treated in the device and to carry 45 lator which may be in the form of a reservoir 15, al
the gases thus separated from the fluid to discharge under
though it will be understood that other forms of accumu
the in?uence of the ?ow of air.
The principal object of the present invention is to pro
lation means may be employed in conjunction with aerator
11 without departing from the present invention.
vide means for aerating water for the purpose of elimi
As will become apparent hereinafter, air is to be drawn
nating undesirable gases entrained or carried therein in 50 or forced through aerator 11, and it is desirable that
which the water together with the gases is discharged
such air should pass through ?lter means in order to
within a housing onto a substantially horizontally dis
eliminate therefrom unnecessary outside materials in the
air prior to acting upon the water to be treated in the
posed motor driven impeller having upstanding diffuser
aerator. In the embodiment as shown in FIG. 1, ?lter
tins, the impeller and its upstanding diffuser ?ns being
adapted to discharge the water laterally in the form of 55 means 17 are shown as mounted on reservoir 15, and the
a diffused spray against a series of cylindrical screen or
?lter means 17 provide the means for the entrance of
mesh cylinders for successively thoroughly dividing the
air into the system for subsequent passage through aerator
11. It will again be understood that suitable ?lter means,
water into minute particles for superiorly releasing any
such as, for example, of the nature of the air ?lter means
gas that might be entrained therewith.
A further object of the invention is to provide an 60 employed in conventional air conditioning machines, may
‘be employed in conjunction with aerator 1ill, and that the
aeration device comprising an external housing with an
same may be mounted in conjunction with the aerator
upper discharge portion for gaseous elements, and having
means speci?cally, or may be separated therefrom as
a motor driven discharge fan or blower carried conjointly
indicated in FIG. 1.
upon a shaft with an impeller adapted to receive an in
Aerator i1 essentially comprises an external housing
take of water and to discharge same laterally against 65
made up principally of a shell 19. Shell 19 is substan
divider elements.
tially cylindrical and is adapted to house substantially all
A further object of the invention is to provide such
of the instrumentalities involved in aerator 11. Adjacent
a device in which the motor mechanism together with its
its lower end shell 19 is preferably provided with an
driven parts, including the blower and the impeller as
well as the water intake system, are separable as a unit 70 annular seat 21 which is disposed substantially horizon~
tally and extends inwardly of shell 19 a minor distance
from the housing for removal.
only. Adjacent its inner edge seat 21 is preferably pro
A further object of the invention is to provide such
3,028,150
3
vided with a depending ?ange 23 which is of circular
cross section.
It will be seen that the annular seat 21
is rigidly ?xed to shell 19, preferably as by welding pro
jects substantially horizontally therein providing a sub
stantially horizontal annular shelf, with the shelf termi
nating at depending flange 23 and de?ning a downwardly
E
of the members 39, 41, 421, preferably as by Welding,
so as to dispose the top and plates in spaced apart rela
tion as best shown in FlG. 2.
Plates d1, 43 are preferably of a diameter slightly less
than the internal diameter of shell 19 in order to slidably
be ?tted into the shell with the top 39‘ seating upon the
unobstructed opening 25 of substantially large diameter.
Seat 21 is provided to support the divider means Prefer
ably used in the present invention. These divider means
upper end of the shell to effect closure of the shell and
ameter is such as to slidably ?t within the interior of shell
Mounted on ‘and secured to the upper surface of top
also support of the plates therefrom. Each of the plates
41, 43 is centrally apertured as at 47, 49* to provide for
comprise a plurality of concentrically nested cylinders 10 the passage of air?ow through the device, and also to ac
commodate the other instrumentalities of the diffuser
formed of coarse mesh, such as hardware cloth. These
means to be described, the apertures 47, 4% in plates 41,
mesh cylinders, as shown best in FIGS. 2 and 4, com
43 being of successively reducing diameters somewhat less
prise an' inner mesh cylinder 27, an outer mesh cylinder
than the diameter of the inner mesh cylinder 27. Thus
29, and intermediate mesh cylinders El, 33. The nest
of mesh cylinders at their upper ends are connected to 15 aperture 49 in lower plate 43 is of slightly less diameter
than the open upper end of cylinder 27, while the aperture
gether to form a divider unit, a connector ring 35 being
47 in plate 41 is of substantially smaller diameter than
seated upon and rigidly ?xed to the upper ends of the
the open upper end of cylinder 7, and is of somewhat
respective mesh cylinders.
smaller diameter than is the diameter of aperture 49.
Ring 35» is substantially horizontal and its outside di
39 is a motor Sll to which is connected a shaft 53, shaft
1% to provide for insertion and removal of the nest of
53 being driven by motor 51 and extending downwardly
mesh cylinders into and from shell 19. Ring 35 is cen
through top 39 and plate apertures 4-7, 49 into the upper
trally open, the ring preferably having a central passage
portion of the nested mesh cylinders, being disposed sub
way of diameter substantially equal to the internal di
stantially along the vertical axial center of the arrange
ameter of inner mesh cylinder 27. The nest of mesh
ment. Between top 39 and plate 41 a centrifugal blower
cylinders is of a height less than the overall height of
55 is ?xed to shaft 53 and is driven therewith. Blower
shell 19, and thus terminates intermediate the height of
55 is substantially centered over aperture 47 for better
the shell‘, preferably being of a height slightly in excess
inducing flow of air upwardly through aperture 47.
of half the height of the shell. Intermediate the extent
Shaft 53, between plates 41, 43, is journalled in a hear
of inner mesh cylinder 2',’ of the nest of cylinders a disc 30
ing 57 carried in a disc-like ba?le plate 59, ba?le 59 being
like ba?le 37 is rigidly ?xed to the interior of mesh cylin
der 2'7, effectively maintaining the cylinder in its cylindri
disposed intermediate plates 41, 43 and being substantially
cal shape and additionally serving as a ba?le for the diver
sion of air ?ow.
In the preferred embodiment as shown in the present
in excess of the diameter of aperture 49‘ in order to radial~
drawings, the spacing between the respective nested mesh
cylinders progressively reduces proceeding outwardly
parallel with the plates. Baffle 59 is of a diameter slightly
ly deflect ?ow of air upwardly through aperture 49, and
ba?le 59 is preferably connected to plate 43 as by one or
more connector rods 61 which are rigidly ?xed to the
baffle and the plate and extend therebetween.
through the nest. Thus-intermediate mesh cylinder 31
Depending below ba?le 59 is a substantially cylindrical
is spaced more greatly from inner mesh cylinder 27 than
intake chamber 63 which surrounds shaft 53 and which
is mesh cylinder 31 from the other intermediate mesh
in its lower portion is provided with a rubber bearing 65
cylinder 33, and in turn, intermediate mesh cylinder 33
in which the shaft is journailled, the bearing 65 being sup
is spaced from outer mesh cylinder 39 a distance less
ported in a sleeve 66, and at its lower end chamber 63
than the other spacings. ~It additionally will be seen that
terminates in a ported plate 67. Preferably the lower por
outer mesh cylinder 2§ is spaced inwardly from shell 19
and is secured to connector ring 3-5 at a point spaced 45 tion of chamber 63 is divided into segments by divider
walls 69, which connect with sleeve 66. The lower end
inwardly from the periphery of the connector ring.
of intake chamber 63 extends downwardly slightly into
While the primary purpose of seat 21 is that of provid
the nest of mesh cylinders so that ported plate 67 is posi
ing a bottom support for the accumulated nest of mesh
cylinders Which are removably inserted into shell 1%, it
tioned slightly below the upper edge of the nested mesh
will be seen that seat 21 also provides a baffle means for 50 cylinders in order to insure gravity discharge of water
diverting air ?ow so as to ?ow upwardly into aerator 11
delivered into the intake chamber within the divider
through lower opening 25. Additionally connector ring
35 at the top of the nest of mesh cylinders not only
serves to connect the cylinders together, but also serves
means;
1
Spaced below plate 67 of chamber 63, and ?xed adja
cent the lower end of shaft 53, is a substantially hori
as a baffle to divert air flow to pass upwardly through 65 zontally disposed impeller 71 having a central hub 73 by
the open upper end of inner mesh cylinder 27.
which impeller 71 is ?xed to shaft 53, the impeller being
These divider means, comprising essentially the nested
a substantially disc-like member including a plurality of
mesh cylinders and their connecting ring and ba?ie means,
upwardly bent ?ns 75, the ?ns preferably being integral
are removably mounted in the lower portion of shell
with impeller 71 and may be formed by substantially radi
1§, although under certain circumstances it may be de 60 ally slotting the impeller plate and upwardly folding the
sired to have connector ring 35 rigidly ?xed to shell 19
material adjacent to the cut. Pins 75 are disposed adja
in order permanently to ?x the nest of mesh cylinders
cent the periphery of impeller 71 and are preferably of
within the lower end of the shell.
substantially triangular shape, and are circumferentially
In the upper portion of shell 19 are mounted the
spaced apart about the periphery of the impeller.
diffuser and discharge means of the present invention, and 65
Intake of water to be treated in the device is delivered
preferably these latter means are combined together into
into intake chamber 63 through intake pipe 13, shell 19
a removable unit removably mounted in the shell. These
being cut out adjacent its upper end to receive the intro
latter means are essentially supported by and mounted
duction of pipe 13 into its interior, the pipe curving down
upon a cage consisting of a top 39 adapted to overlie
wardly, passing through plate 41 and into the upper por
the upper portions of shell 19 and to mate therewith in 70 tion of chamber 63 slightly above plate 43.
order to e?ect upward closure of the shell. Connected
When the device is assembled with top 39 seated on
with top 39 and successively spaced therebclow are an
the upper portion of shell 1%, and the instrumentalities
intermediate plate
carried by the top being positioned within the shell, plate
rods 45, which rods are respectively rigidly ?xed to each
41 de?nes an upper discharge chamber 77, and the shell
around the discharge chamber is provided with a plurality
and a lower plate 453, top 31,-‘ and
plates 41, 43 being preferably interconnected as by hanger
3,028,150
5
of gas discharge vents or openings 79. It will be observed
that blower 55 is housed within discharge chamber 77 and
described as comprising motor 51, other drive means,
such as a belt drive, engine drive or gear drive, may be
of air moved by the blower outwardly through the vents.
In the use of the device, after it has been mounted
substituted without departing from the present invention.
In addition it is preferred that the volume of water
intake should be variable and controllable, and for that
upon a suitable accumulator such as the reservoir 15, and
after it has been assembled with the nested mesh cylinders
purpose ?ow control means, such as a valve 81, may be
mounted in intake pipe 13 in order to provide for control
is in adjacency to vents 719 so as to facilitate discharge
of the rate of flow through pipe 13 to aerator 11.
mounted in the lower portion thereof, and the top and
I claim:
instrumentalities carried thereby mounted upon and in
1. Means for aerating water comprising an imperforate
the upper portion of the shell, air ?ow is induced to ?ow 10
shell having an open bottom, a plurality of upright mesh
through the ?lter means into the lower portion of the
cylinders supported within the lower part of said shell,
aerator by operation of blower 55. It will be seen that
said mesh cylinders being spaced apart and being of sub
the air ?ow drawn in through lower opening 25 is di
stantially equal height, a bathe ring connected to the
verted somewhat inwardly by the depending ?ange 23
and seat 21, then impinges against battle plate 37, caus 15 upper ends of said cylinders, ?xed ba?ie means respec
tively associated with said mesh cylinders, said baf?e
ing outward diversion of the air ?ow to pass outwardly
means including a lower peripheral baffle supporting said
through the mesh cylinders and to circulate therethrough,
mesh cylinders and con?ning upward air flow toward the
being then con?ned to pass upwardly within the opening
vertical center of said nest, an intermediate imperforate
forming the central portion of ring 35. As the air flow
is passed further upwardly, passing through aperture 47, 20 disc rigidly ?xed to and spanning the interior of the inner
most of said mesh cylinders and diverting upward air
it again impinges a ba?le plate and is diverted outwardly
?ow to pass outwardly through the mesh of said cylinders
by baf?e 5h. Thereafter the air ?ow passes through aper
in a tortuous pathway upwardly and outwardly through
ture 49‘ into blower 55 and is discharged through vents 79.
said mesh cylinders, whereby to de?ne a mesh cylinder
While this air flow is in progress intake of water into
unit, a top closing the upper end of said shell, a motor
the aerator through pipe 13 may be begun. Simultane
mounted on said top, an elongated shaft driven by said
ously with the operation of blower 55, impeller 71 is
motor and depending into said shell to extend at its
being rotated by the common shaft 53 driven by motor
lower end into the upper part of said mesh cylinders, a
51. Water discharging through pipe 13 discharges into
substantially horizontally disposed impeller ?xed to said
intake chamber 63 and ?ows downwardly therethrough,
shaft adjacent said shaft lower end and supported Within
passing out the ports in bottom plate 67, dropping directly
the upper part of said mesh cylinders, plate means con
onto the central portion of the rapidly rotating impeller
nected with said top and de?ning a gas discharge chamber
71. The water thus discharging onto impeller '71 is cen
adjacent said top, said shell having a plurality of vents
trifugally moved outwardly along the impeller, and as it
communicating into said discharge chamber, a blower
reaches ?ns '75 is de?ected upwardly and broken into a
?xed to said shaft adjacent said top, said blower being
spray and is discharged outwardly against the upper por
positioned in said chamber and in air flow communica
tions of the mesh cylinders, successively passing through
tion with air ?owing along said tortuous pathway, water
the mesh cylinders so that the water diffused into the
intake means extending into said shell adjacent and above
form of a spray by the impeller is caused to be further
the upper ends of said mesh cylinders, said intake means
divided as it successively passes through the mesh cylin
40 discharging onto the upper surface of said impeller, motor
ders.
drive of said impeller diffusing water discharged thereon
The spacing between the cylinders is of importance as
and casting said diffused water against said mesh cylin
the successive division of the water portions diffused by
ders for further dividing, said diffused and divided water
the impeller reduces successively the size of such particles
being subjected to said air ?ow for removal of entrained
with the necessity that the spacing between the cylinders
gases therefrom to discharge from said discharge chamber.
is successively reduced outwardly through the nest of
2. Means for aerating water comprising an imperforate
mesh cylinders.
shell having an open bottom, a plurality of upright mesh
With the water thus ?nely diffused and divided, the
cylinders supported within the lower part of said shell,
flow of air, passing tortuously through the mesh cylinders
said mesh cylinders being spaced apart and being of sub
and upwardly through the nest of cylinders to discharge
out of discharge chamber 77, is enabled to mingle satis 50 stantially equal height, a ba?le ring connected to the
upper ends of said cylinders, ?xed ba?le means respec
factorily with the ?nely divided and diffused water par
tively associated with said mesh cylinders, said ba?ie
ticles, the breaking up of the water stream effectively
‘means including a lower peripheral baffle supporting said
releasing gaseous elements entrained with the water and
mesh cylinders and con?ning upward air ?ow toward the
enabling these released gaseous elements to be picked
vertical center of said nest, an intermediate imperforate
up by the ?ow and carried outwardly to discharge from
the aerator.
Thus it will be seen that as the water thus acted upon
by the air ?ow ?ows to the bottom of the aerator and
thence to the accumulator, that it will have been sub
disc rigidly ?xed to and spanning the interior of the
innermost of said mesh cylinders and diverting upward
arr ?ow to pass outwardly through the mesh of said
cylinders in a tortuous pathway upwardly and outwardly
jected to an air scrubbing which has proven to be highly 60 through said mesh cylinders, whereby to de?ne a mesh
cylinder unit, a top closing the upper end of said shell,
effective in substantially eliminating noxious or undesir
able gaseous matters entrained with such water under
a motor mounted on said top, an elongated shaft driven
treatment.
by said motor and depending into said shell to extend
at its lower end into the upper part of said mesh cylin
It will further be seen that, in view of the removable
65 ders, a substantially horizontally disposed impeller ?xed
units which are included in the device, in the event of
to said shaft adjacent said shaft lower end and supported
the necessity of repairs, replacements, cleaning or other
within the upper partof said mesh cylinders, plate means
connected with said top and defining a gas discharge
it will be understood that motor 51 is preferably a 70 chamber adjacent said top, said shell having a plurality
of vents communicating into said discharge chamber, a
variable speed motor, it being found that due to varia
blower ?xed to said shaft adjacent said top, said blower
tions in the gaseous content of water in differing local
being positioned in said chamber and in air flow com
ities that the duration and volume of aeration should be
munication with air ?owing along said tortuous pathway,
varied. Additionally, while in the preferred embodiment
the drive means for the blower and impeller have been 75 water intake means extending into said shell adjacent and
problems, the device may quickly be dismantled and
such operations effected, and as quickly reassembled.
3,028,150
7
above theupper ends of said mesh cylinders, said intake
means discharging onto the upper surface of said im
peller, said impeller including a plurality of ?ns extend
ing angularly upwardly from the upper surface of the
impeller, motor drive of said impeller and its ?ns diffus
ing water discharged thereon and casting said diffused
8
said shell, a motor mounted on said top, an elongated
shaft connected to and driven by said motor and depend
ing into said shell to extend at its lower end into the
upper part of said nested mesh cylinders, a substantially
horizontally disposed impeller ?xed to said shaft adja
cent said shaft lower end and supported within the upper
part of said mesh cylinders, plate means connected with
said top and de?ning a gas discharge chamber adjacent
said top, said shell having a plurality of vents communi
air ?ow for removal of entrained gases therefrom to
10 cating into said discharge chamber, a blower ?xed to said
discharge from said discharge chamber.
shaft adjacent said top, said blower being positioned in
3. Means for aerating water comprising an imperforate
said chamber and in air ?ow communication with air
shell having an open bottom, a plurality of concentrically
?owing along said tortuous pathway, water intake means
nested upright mesh cylinders supported within the lower
extending into said shell adjacent and above the upper
part of said shell, said mesh cylinders being spaced apart
ends of said mesh cylinders and supported from said
and being of substantially equal height, a ba?le ring con
top, said top, motor, shaft and intake means comprising
nected to the upper ends of said cylinders, ?xed ba?le
water against said mesh cylinders for further dividing,
said diffused and divided water being subjected to said
means respectively associated with the upper and lower
ends and intermediate the height of said mesh cylinders,
a unit removable from said shell, said intake means dis
charging onto the upper surface of said impeller, said
impeller including a plurality of ?ns extending angularly
porting said mesh cylinders and con?ning upward air 20 upwardly from the upper surface of the impeller, motor
said ba?le means including a lower peripheral batfle sup
?ow toward the vertical center of said nest, an inter
drive of said impeller and its ?ns diffusing water dis
the interior of the innermost of said mesh cylinders and
charged thereon and casting said diffused water against
said mesh cylinders for further dividing, said diffused and
and outwardly through said mesh cylinders, whereby to
said discharge chamber.
mediate imperforate disc rigidly ?xed to and spanning
divided water being subjected to said air flow for re
diverting upward air ?ow to pass outwardly through the
mesh of said cylinders in a tortuous pathway upwardly 25 moval of entrained gases therefrom to discharge from
de?ne a mesh cylinder unit, a top closing the upper end
of said shell, a motor mounted on said top, an elongated
5. Means for aerating water comprising a substantial
ly cylindrical imperforate shell having an open bottom,
a plurality of concentrically nested upright mesh cylinders
shaft driven by said motor and depending into said shell
to extend at its lower end into the upper part of said 30 removably supported within the lower part of said shell,
said mesh cylinders being spaced apart with the spac
nested mesh cylinders, a substantially horizontally dis~
ing between said mesh cylinders progressively reducing
posed impeller ?xed to said shaft adjacent said shaft
outwardly from the center of the nest of said mesh cylin
lower end and supported within the upper part of said
ders, ba?le means respectively associated with the upper
mesh cylinders, plate means connected with said top and
and lower ends and intermediate the height of said mesh
de?ning a gas discharge chamber adjacent said top, said
cylinders, said ba?le means including a lower peripheral
shell having a plurality of vents communicating into said
battle supporting said mesh cylinders and con?ning up
discharge chamber, a blower ?xed to said shaft adjacent
ward air flow toward the vertical center of said nest, an
said top, said blower being positioned in said chamber
intermediate imperforate disc rigidly ?xed to and span
and in air flow communication with air ?owing along
said tortuous pathway, water intake means extending 40 ning the interior of the innermost of said mesh cylinders
into said shell and supported from said top adjacent and
above the upper ends of said mesh cylinders, said intake
means discharging onto the upper surface of said im
peller, said impeller including a plurality of ?ns extend
and diverting upward air flow to pass outwardly through
the mesh of said cylinders in a tortuous pathway up
wardly and outwardly through said mesh cylinders, said
mesh cylinders being of substantially equal height, said
ing angularly upwardly from the upper surface of the 45 ba?le means associated with the upper ends of said cylin
ders comprising. a connector ring connected to the upper
impeller, motor drive of said impeller and its ?ns diffus
ends of said cylinders and removable therewith, whereby
ing water discharged thereon and casting said diffused
to de?ne a removable mesh cylinder unit, a top removably
water against said mesh cylinders for further dividing,
closing the upper end of said shell, 21 motor mounted on
said diffused and divided water being subjected to said
air ?ow for removal of entrained gases therefrom to dis
charge from said discharge chamber.
4. Means for aerating water comprising a substantially
cylindrical imperforate shell having an open bottom, a
50 said top, an elongated shaft driven by said motor and de
pending into said shell to extend at its lower end into the
upper part of said nested mesh cylinders, a substantially
horizontally disposed impeller ?xed to said shaft adja
cent said shaft lower end and suported within the upper
plurality of concentrically nested upright mesh cylinders
removably supported within the lower part of said shell, 55 part of said mesh cylinders, plate means connected with
said top and de?ning a gas discharge chamber adjacent
said mesh cylinders being spaced apart with the spacing
said top, said shell having a plurality of vents communi
between said mesh cylinders progressively reducing out
cating into said discharge chamber, a blower ?xed to said
wardly from the center of the nest of said mesh cylinders,
shaft adjacent said top, said blower being positioned in
substantially horizontal ba?le means respectively asso
said chamber and in air ?ow communication with air
ciated with the upper and lower ends and intermediate 60
?owing along said tortuous pathway, water intake means
the height of said mesh cylinders, said baffle means in
extending into said shell adjacent and above the upper
cluding a lower peripheral baffle supporting said mesh
ends of said mesh cylinders and supported from said top,
cylinders and con?ning upward air flow toward the ver
said top, motor, shaft and intake means comprising a unit
tical center of said nest, an intermediate imperforate disc
removable from said shell, said intake means discharging
rigidly ?xed to and spanning the interior of the inner 65 onto the upper surface of said impeller, motor drive of
most of said mesh cylinders and diverting upward air
said impeller diffusing water discharged thereon and cast
flow to pass outwardly through the mesh of said cylinders
ing said diffused water against said mesh cylinders for
in a tortuous pathway upwardly and outwardly through
further dividing, said diffused and divided water being sub
said mesh cylinders, said mesh cylinders being of sub 70 jected to said air ?ow for removal of entrained gases
stantially equal height, said baffle means associated with
therefrom to discharge from said discharge chamber'
6. Means for aerating water comprising a substantially
the upper ends of said cylinders comprising a connector
cylindrical imperforate shell having an open bottom, a
ring connected to the upper ends of said cylinders and
plurality of concentrically nested upright mesh cylinders
removable therewith, whereby to de?ne a removable mesh
'cylinder unit, a top removably closing the upper end of 75 supported within the lower part of said shell, said mesh
3,028,150
10
cylinders being spaced apart with the spacing between said
mesh cylinders progressively reducing outwardly from the
center of the nest of said mesh cylinders, ?xed baffle
means respectively associated with the upper and lower
ends and intermediate the height of said mesh cylinders,
said baf?e means de?ning ‘a tortuous pathway for air
flow upwardly and outwardly through said mesh cylinders,
said mesh cylinders being of substantially equal height,
discharge chamber, a blower ?xed to said shaft adjacent
said top, said blower being positioned in said chamber
and in air ?ow communication with air ?owing along said
tortuous pathway, Water intake means extending into
said shell adjacent and above the upper ends of said mesh
cylinders, said intake means discharging onto said im
peller, drive of said impeller diffusing water discharged
thereon and casting said diffused water against said mesh
cylinders for further dividing, said diffused and divided
cylinders comprising a connector ring connected to the 10 water being subjected to said air flow for removal of
said ba?le means associated with the upper ends of said
upper ends of said cylinders, whereby to de?ne a mesh
entrained gases therefrom to discharge from said dis
cylinder unit, a top removably closing the upper end of
charge chamber.
8. Means for aerating water comprising an imperforate
shell having a lower opening for receiving air ?ow, a
shaft driven by said motor and depending into said shell
to extend at its lower end into the upper part of said 15 plurality of nested upright mesh cylinders supported with
in the lower part of said shell, ?xed ba?le means respec
nested mesh cylinders, a substantially horizontally dis
tively associated with the upper and lower ends and
posed impeller ?xed to said shaft adjacent said shaft lower
intermediate the height of said mesh cylinders, said baf?e
end and supported within the upper part of said mesh
means de?ning a tortuous pathway for air flow upwardly
cylinders, plate means connected with said top and de?n
ing a gas discharge chamber adjacent said top, said shell 20 and outwardly through said mesh cylinders, said mesh
cylinders being of substantially equal height, said ba?ie
having a plurality of vents communicating into said dis
means associated with the upper ends of said cylinders
charge chamber, a blower ?xed to said shaft adjacent said
comprising a connector ring connected to the upper ends
top, said blower being positioned in said chamber and in
of said cylinders, whereby to de?ne a mesh cylinder unit,
air ?ow communication with air ?owing along said tortu
ous pathway, water intake means extending into said shell 25 a top closing the upper end of said shell, an elongated
shaft depending into said shell to extend at its lower
adjacent and above the upper ends of said mesh cylinders
end into the upper part of said mesh cylinders, drive
and supported from said top, said top, motor, shaft and
said shell, a motor mounted on said top, an elongated
intake means comprising a unit removable from said
shell, said intake means discharging onto the upper sur
means connected to said shaft, a substantially horizontally
disposed impeller ?xed to said shaft adjacent said shaft
face of said impeller, motor drive of said impeller dif 30 lower end and supported within the upper part of said
mesh cylinders, a gas discharge chamber within said shell
fusing water discharged thereon and casting said diffused
adjacent said top, said shell having a plurality of vents
water against said mesh cylinders for further dividing,
communicating into said discharge chamber, a blower
said diffused and divided water being subjected to said
?xed to said shaft adjacent said top, said blower being
air ?ow for removal of entrained gases therefrom to dis
positioned in said chamber and in air flow communica
charge from said discharge chamber.
tion with air ?owing along said tortuous pathway, water
7. Means for aerating water comprising an imperforate
intake means extending into said shell adjacent and above
shell having a lower opening for receiving air flow, a
the upper ends of said mesh cylinders, means for varying
plurality of nested upright mesh cylinders supported within
water intake, said intake means discharging onto said
the lower part of said shell, ?xed baffle means respectively
associated with the upper and lower ends and intermediate 40 impeller, drive of said impeller diffusing water discharged
thereon and casting said diffused water against said
the height of said mesh cylinders, said ba?le means de
mesh cylinders for further dividing, said diffused and di
?ning a tortuous pathway for air ?ow upwardly and out
vided water being subjected to said air flow for removal
wardly through said mesh cylinders, said mesh cylinders
of entrained gases therefrom to discharge from said dis
being of substantially equal height, said ba?de means asso
ciated with the upper ends of said cylinders comprising a 45 charge chamber.
connector ring connected to the upper ends of said cylin
References Cited in the ?le of this patent
ders, whereby to de?ne a mesh cylinder unit, a top clos
ing the upper end of said shell, an elongated shaft sup
UNITED STATES PATENTS
ported from said top and depending into said shell to
916,146
Gosline ____________ __ Mar. 23, 1909
extend at its lower end into the upper part of said nested
940,103
Feld ________________ __ Nov. 16, 1909
mesh cylinders, variable speed drive means drivingly
1,384,938
Crane _______________ __ July 19, 1921
coupled to said shaft, a substantially horizontally dis
posed impeller ?xed to said shaft adjacent said shaft
lower end and supported within the upper part of said
mesh cylinders, plate means connected with said top and 55
de?ning a gas discharge chamber adjacent said top, said
shell having a plurality of vents communicating into said
1,979,630
2,046,895
2,153,932
2,889,005
Lea __________________ __ Nov. 6, 1934
Delamere _____________ __ July 7, 1936
Lea ________________ __ Apr. 11, 1939
Umbricht _______ ______.._ June 2, 1959
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