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Патент USA US2062042

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Nov. 24, 1936.
Filed Aprii 25. 1954
‘2 Sheets-Sheet 1‘
Don jid'atge nt.
, Nov. 24, 1936.
' 2,062,042
Filed April 25, 1934
2 Sheets-Sheet 2
,- 21-,
Patented Nov. 24, 1936
' 2,062,042
Don A. Sargent, Portland, Maine
Application April 25, 1934, Serial No. 722,264
6 Claims. (Cl. 257-8)
This invention relates to air-conditioning ap
lowing speci?cation, when taken in connection
In its fundamental characteristics ‘it somewhat
resembles the apparatus designed for a similar
5 purpose, on which United States Patent No.
parts in all the different views, and in which,
Fig. 1 is a plan view of the apparatus, partly 5.
1,916,907 was issued to me on July 4th, 1933.
In my present conception I have sought to
make and have succeeded in making several im
ditioner box;
movements which differentiate it from my for
mer invention. For instance, in the matter of.
the conditioner box;
humidi?cation my present apparatus is con
structed to provide a greater amount of moisture
with the expenditure of less power for heat gen
with the accompanying drawings in which like
reference characters are employed to identify like
eration than obtained in my previous air-condi
tioner, this advantage being procured by segre
gating a small body of water from the main sup
ply tank and applying the heat‘ to this lesser
quantity of water, with the result that the latter
can be brought to the vaporizing point much
20 more expeditiously and with a largely decreased
in section, the cover being removed from the con
'Fig. 2 is a sectional elevation, longitudinally of
Fig. 3 shows one method of vaporizing the wa
ter, the view being partly in section taken on line
3-3, Fig. 1;
Fig. 4 is a fragmentary view of the air-condi
tioner showing an alternative form of structure
for vaporizing the water, together with ya con
stant water level maintaining mechanism;
Fig. 5 shows a method of heating the tank wa
ter by a coil connected with a radiator;
Fig. 6 illustrates the conditioner when employ
ing a jet humidi?er operated either by a pump
cost for electric current for heating purposes.
or by service main pressure;
I have provided, means for manually re-?lling
the supply tank with water, but in instances
where water from a service main is available,
Fig. 7 shows, in an enlarged view, the connec
tion between the conditioner and the window;
Figs. 8 and 9 illustrate, respectively, a front
25 automatic means for maintaining a constant
level of the water is a preferred arrangement.
I have also made in my present apparatus ex
tensive changes in the air-cooling facilities, as I
have found that'to appreciably lower the tem
30 perature of the air in an ordinary size room a
cooling device more or less on the order of the
conventional type of refrigerating machine is
and a sectional elevation of the shutter;
Fig. 10 showsan alternative ‘form of structure
to retain the device in the window space.
Referring to the drawings, W represents a win
dow sash and S the window space-adjacent which
latter the outer end of my apparatus is posi
In my fully equipped air-conditioner I employ
required. To this endjI provide a space in my
a double compartment box or container, the com
_ present apparatus in which a cooling coil, served
partment I housing a conventional type refriger
ating plant (not shown) and the compartment
in the box 2 containing the various elements used
35 by a small refrigerating machine, is permanent
ly installed, its use being dispensed with, how-‘
ever, during the colder months of the year.
The air-?ltering element of my present de
vice is made of a mineral product and is sub
stantially similar to the corresponding part of
my former air-conditioner.
I have adopted a rotary, perforate plate shut
ter by which I amrenabled to restrict the pas
sage-way for air into the conditionerv variably.
- The out-door end of my improvedapparatus
is so constructed that in its contact with the win
dow no obstruction is offered to fully opening or
fully closing the latter; and on each side of the
. conditioner box, ?lling the window ‘spaces, are
50 ?llers, these like the box being provided with
weather strips which contact the window and
window frame parts to make a weather-proof
’ joint on all sides of the, window opening.
Other objects and advantages will be apparent
by reference‘ to the description found in the fol
in treating the air, including heating, cooling
and humidifying it. The pipes P. P. extend from
the refrigerating plant in compartment I to the
.cooling coil C. C. in the box 2. The box in which 4
is compartment I is discarded when the refrig
erating plant is not included in the air-condi
tioning equipment.
_At the extreme end of box 2, adjacent the
window, I provide a slide-Way 2a in which, if
desired, a ?y screen 3 may be mounted. The use
of a screen is optional and not absolutely essential,
as in practice the ?ltering element may serve
both as a screen and as an air cleaner. However,
the screen is e?lcacious in excluding ?ies, mos
quitoes and certain physical objects suspended
in the air.
Furthermore the screen acts to prevent the
larger. objects entering the screen-box and clog
ging the ?ltering element which, as a matter of 55
fact, should be left free‘ to handle the minute
particles in the air.
ing to the percolator vapor in humidifying the
Inwardly of the ?y-screen slide-way is a shut
- A modi?cation of the foregoing method of
ter 4, made preferably in the rotary, perforate
segregating a small body of the water for inten
sive heating is illustrated in Fig. 4whereln is
shown a small open top tank 29 having interior
communication with the main tank |4 through
the automatically actuated valve 30 which de
plate type, equipped with a handle 5 movable in
the slot at in the cover 2b. By actuation of the
handle, any degree of opening, from fully opened
to fully closed positions of the perforate plate 4
rotating over the perforate back plate 4a may
be had. The shutter rotates from a central pivot
pin "4b.
Still further'inward‘ly of the box 2 is an air
?ltering element 6, constructed of mineral wool
or spun glass. The ?ltering element is slidably
15 disposed in the slide-way ‘I and may be removed
therefrom through a slot 8 in the cover by grasp
ing. the lugs 9.
A motor I0, equipped with a fan-wheel ||
drafts air from the outside into the interior of '
20 the box 2, forcing the air through the cooling
coil C. C. and heater [2, thence through an open
ing l3 in the water tank l4 and the grill I5 into
pends on the conventional ball float 3| to regu
late the admission of water into the smaller tank
to maintain a constant level of water therein.
An electric heater 32‘ is calculated to raise the
water in tank 29 very rapidly and vapor rising
therefrom passes of! through opening l3 similar
ly to the previously described method of vapor 15
izing the water.
In the last method described, the tank l4 may
be manually ?lled by removing the cap I41) and .
using a ladle or bucket; or, if. a water service
main is accessible, the pipe line may be connected 20
to the tank and by the use of valve I41) it may
be ?lled whenever required.
In case a steam or hot-water radiator R is
It will be observed that the air travels in a , located near the window equipped with the air
the interior space in the room.
25 very direct and straightforward course through
conditioner a very ‘simple method of heating the 25
the box 2 thereby increasing the distance to
which it may be projected into the room.
One of the features characterizing my present
invention pertains to the method of humidifying
30 the ?ltered alrbefore being blasted into the in
tank- water is to mount a coil Z, as seen in Fig.
terior space.
In Figs. 1, 2 and 3, I illustrate what I designate
as my percolating system of humidi?cation. It
embodies'the use of a small, shallow tank It
having interior communication with the large
5, within the tank and make connections to the
radiator section nearest thereto.
In certain instances it might be found neces
sary, in order to supply a su?lcient output of 30
moisture, to employ a small atomizer or jet
type humidifying element to augment the vapor
procured through the heating method.
In Fig. 6, the jet humidifier is shown at 34 and
at M is a connection which extends to the main
,water service pipe; W. P. represents a water
Within tank I6 is an electric heating unit I8, pump haying on its suction end direct connec-.
surrounding and spaced from'which is a casing tion, through pipe |4c, to the tank l4 and a
l9 with a hole 20 in its end.
branch connection 14d to the drip pan 35.
Rising from the casing I9 is a small percolator
The pipe 36 is a waste pipe employed to carry 40,
tube 2| disposed within a ‘pipe 22 the lower end off the drippings from the cooling coil C. C.
of which opens into the tank l6. An annular when de-frosting it. When the fan-wheel is be
space 23 is thus formed between the tube 2| and ing rotated at maximunispeed, the blast of air
‘pipe 22 through which the water rises from tank impacting with considerable force on the coil
45 l6. outwardly of the pipe 22 is an insulating ma
largely eliminates the super accumulation of ice 45
tank |4 through the opening ll.
terial v24.
The wall. Me of the tank i4 is cut away at 25,
and over the top of the tank and downwardly on
its rearward side is mounted a vapor de?ector, 26
50 which directs the vapor, rising from the perco
lator, into opening IS in the tank. An electric
heating unit 21 is or may be placed in the water
in tank I4 to slightly warm it before entering
erated on reduced speeds and conditions are then
such as to require clearingthe coils of super
?uous ice, occasionally.
In operation, the slightly warmed water in tank
l4 passes through the opening l'l into tank |6,
and a portion. thereof rises into the annular
ping and falling into the pan 3!.
space 23.
The remainder of the water in tank .
l6 passes through the opening 20 into immediate
60 and direct contact with the heating unit by
which it~is intensely heated. The quantity or
The de-frosting operation is easily performed
by- stopping the ?ow of the refrigerant to the
cooling coils, reversing the direction of rotation
of the'motor and fan-wheel, ‘and turning on the
current to the heater l2. The hot air quickly
accomplishes the object sought, the water drip
tank l6.
thereon, and de-frosting is but seldom required.
But the motorand fan-wheel frequently are op
7 Now by closing valves 31 and 38 and opening
valves 39 and 40 the water in.the drip pan may
be forced‘ by the pumpw. P. through the waste b
pipe 36 to any convenient disposal place. Or,
body of water is so small that violent ebullition in case the pump forms no part of the equip
takes p1ace,'producing a large amount of vapor ment, the waste pipe 38a (see Fig. 2) may serve
and spray which is projected into’ the interior . to carry off the water from the melted ice. A .
65 of the de?ector member 26 and through the
clutch mechanism Ina operating from the motor 65
opening ‘I3 into the room, through the action
of the fan-wheel II.
More or less of the water in the percolator
tube 2| boils over, so to speak, and while the
70 vapor rises, the liquid portion falls on to the
header 25a and drains back into the tank l4.
shaft puts the pump into and out of operation.
, In case the jet humidi?er I4 is operated by
water under pressure from a service linepipe'M,
the valve 38 is closed and the‘ valve 42 opened.
But if it is desiredto spray slightly warmed 70
water through the vatomizer element then the
~ The water which over?ows from the percolator
valves 31 and 38 are opened and the valves a, ‘
tube into the tank l4 assists materially in raising
40 and 42 are closed, and water from the tank
I 4 will pass directly to the water pump W. P. and
the temperature of the main tank water, from
75 which, eventually more or less vapor rises, add
from there to the member 34.
The apparatus is secured in any approved man~
her to the window frame casing, as by brackets
43, and preferably by a supporting standard 44,
or in any other suitable manner.
’ '
In my present conception ‘the end of the box
2 has an outwardly extending ?ange 45 (see Fig.
7) to which a 'thin strip of pliable material 46,
such as felt, and another thicker strip 41 of the
same material are secured, a plate 48 topping
10 the latter strip and by means of bolts or rivets
49 binding the parts together- to provide a
weather-proof joint on the window sash and
around the window frame.
It will be noted that, when the window is low-N
15 ered into the position shown in Fig. 7 it bonds
the strip 46 into angular form. The free end
of this strip, or the downwardly extending part,
due to resistance of the bending stress, exerts
a constant pressure on the sash. thereby insuring
20 a tighter weather joint. With the foregoing
construction the window may be fully opened or
fully closed.
On each side of the- apparatus,‘ adjacent the
window sash is a‘ ?ller F, made in the form of
25 plates which close these spaces against entrance
of air from the outside into the room.
The same
the fan-wheel is such that it draws air into the
box from the indoor end, it serves to very quickly
and effectively clear a room ?lled with smoke or
disagreeable odors, the latter being forced
through the box into the outside atmosphere]
Brie?y stated, my device is capable of supply
ing ?ltered air for an interior space, previously
screened if desired.
After being cleaned it‘is
susceptible of treatment in various ways, as heat
ing, cooling and humidifying, the latter opera 10
tion being conducted by segregating a small body
of water from the main supply and applying
heat to this smaller quantity.
Control over the amount of air to be admitted _
to the interior, the speed at which it is ‘delivered
thereto, and the extent to which the ?ltered air
’is moistened are matters which the hereinbefore
mentioned control units are capable of handling.
The apparatus is simple, e?ici'ent, and effective
in changing the air in an interior space so that 20
it is more healthful to live in.
What I claim is:
1. An air-conditioning apparatus adapted to
be positioned in an interior abreast of an open
ing therefrom to the outside atmosphere, com
prising a box having an air passageway there- - ‘
general construction with respect to the felt through, an air-?ltering element,,made of min
weather-proof strips is'carried out on all sides of ' eral substances, removably disposed in said box,
the ?llers, so that air can enter the room through
30 the box 2 only.-
In Fig. 10, I show a slightly different stru -
ture for securing the apparatus in the window
space. In this instance the box 2 is not secured
to any part of the window frame but is simply
35 hung on a cross member ‘which is ?xed.
box, therefore, may be removed from its posi
a motor, air-impelling means to draft air through
said air-?ltering element, an an; heater, a small 30
water-vaporizing tank, means for supplying
water and maintaining a constant level thereof
in said small tank, an atomizing element dis
posed in said box adjacent and forwardly of said
air heater, a water pump, actuated by said mo
tor, adapted to draw water from said water
tion by raising it bodily and then withdrawing supply means and force it through said atomizer
it from location adjacent the window space.
The structure embodies an angle iron 50 held
40 in position by a thin plate 5| which is bent
around its horizontal leg 50a, the plate extending
, from side to side of the window frame and has
?anged portions extending outward at 5Ia and
To further strengthen and stiffen the structure,
another plate 52 is positioned inwardly of the
‘ plate 5| in close contact therewith, an outwardly
vprojecting ?ange 52a folding over the ?ange 5la,
at the’ bottom, and bending upon itself at‘ the
-50 top to form a rail 52b.
On the box 2 is secured 2. lug 53 having a de
pending ledge 53a, the latter interlocking with
the part 52b to prevent inward displacement of
the box which is mainly supported by the window
55 stool X.
A felt Weatherstrip 54' extends the full length
of the window stool and up each end of the ?ller
elements, and the weather-joint construction ad
jacent the window sash is substantially like that
60 employed in the embodiment shown in Fig. 7.
The members Stand 52 are secured to the win
dow stools and casings by screws 55. ‘
In the foregoing description of my improved
ventilating and air-conditioning apparatus I have
deemed it unnecesary to describe in detail the
various elements, such as switches, thermostats,
rheostats, etc., used to control and put into
action the several electrical units ‘employed in
the apparatus.
One of these elements, however, made in the
form of a reversing switch R. 8., although a con
ventional device, is quite important, as by it the
current to the electric motor which drives the
fan-wheel may be reversed, rotating the motor
75 in two directions. Thus when the direction of
element, and a heater for said vaporizing tank.
2. An apparatus of the class described com
prising a box'adapted to be positioned in a room 40
abreast of a window space therein, an air-?lter
ing element in said box, a motor, a cooling coil;
a drip-pan beneath said cooling coil, a pump,
actuated by said motor, making connection with
said drip-pan, whereby the contents,‘during de 45
frosting operations, may be drawn therefrom by
said pump and disposed of outwardly of said box,
means to engage and disengage said pump from
said motor, and a fan-wheel, driven by the said
motor, adapted to draft the air through said
air-?ltering element, force it into impingement
with said cooling coil and cause it to be circu
lated in the interior space in the room as ?ltered , '
and cooled air.
3. An air-conditioning apparatus adapted to
be‘ positioned in the window space in a room,
comprising a two-compartment box, one of said
compartments housing a refrigerating plant, a
cooling coil in the other of said compartments,
pipes carrying a refrigerant, extending from the 60
refrigerating plant to said cooling coil, an air
?ltering element in the last mentioned compart
ment of said box, a heater disposed in advance
of said cooling coil, a shutter positioned in arrear
of said air-?ltering element, and air-impelling 65
means adapted bdth to draft outside air into said
box, through said air-?ltering element and
through said cooling coil into the room to lower
the temperature of the air therein, said heater
being at this time inactive, and,.upon the re 70,
versal'in the direction of rotation of said air
impelling means, to draw air from the room,
through said heater, at this time active, on to
.said cooling coil for the purpose of tie-frosting
said coil.
4. An air-conditioning apparatus adapted to
purpose of preventing inward displacement of
said box, but adapted to be released‘from such
therefor,’ comprising a box the rearward end of engagement by raising said box, a mineral. air
which is disposed in the window space in con
?ltering element in said box, a shutter arranged
tiguous relation to said sash, a flange extending in said box outwardly of the ?ltering element,
outwardly from the rearward end of said box, a means to draft air from the outside into said
felt strip secured to said ?ange, a second and box, through the ?ltering element, and discharge
‘thicker strip of felt superimposed on said ?rst it from the ‘opposite end of the box, a water
be positioned in a window space having a sash
mentioned strip and abutting on the inner face
10 of said sash when abreast the lower-cross rail
thereof, said ?rst mentioned strip extending, nor
mally, ‘beneath vthe sash, but so formed as to
bend into angular form upon lowering the sash,
providing a yieldable, tensional contact of the
15 vertical portion of the felt strip with the sash‘
_ and permitting the latter to be moved into either
of its extreme positions, a slide-way adjacent
the rearward end of the .box, a screen in said
slide-way, a rotary, perforate plate shutter dis
tank in said box, a. segregated-water tank adapt
ed to receive water from, said first mentioned 10
tank, means to maintain a constant low water
'level‘ in said segregated water tank, and a heater
in said last mentioned tank adapted to vaporize
the water thereinjfor humidi?cation purposes,‘
the vapor rising in said box and commingling 15
with the air being drafted therethrough.
6. A ventilating and air-conditioning appa
ratus one end ‘of which isadapted vto be, posi-_v
tloned within a window frame, comprising an 20
open-end box through which air may ?ow from
the outside atmosphere into an interior space,
20 posed forwardly of said screen, an air-?ltering
element, means to draft air into and project it
out of said box, a water-segregating tank adapted
to predeterminately establish the maximum
amount. of water under continuous vaporization,
and a heater for said segregated water tank.
a shutter to control, either to admit or exclude, '
the passage ,of air through said box, a ?ltering
‘element through which air passes in its course 25
5. Apparatus of the class described comprising through the box, a cross member secured to and
an open end box adapted to be positioned in a extending from one to the other of the upright '
window ‘framewhaving a stool therefor, one end - ‘members of said window frame, and box-attach
of said box resting on but unattached to said ‘ ing means on the ‘out-door end of the box adapt
stool, a'cross member interconnecting opposite
sides of the window frame, a’ lug, having a de
pending ledge thereon, secured on the end of
said box adjacent said window frame, said lug
adapted to engage said cross member for the
ed to engage and hold said box against inward, 80
displacement from its position in said window
frame, said means being automatically released
upon raising said box.
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