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Патент USA US2134881

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NOV. 1, 1938.
Filed May 26, 1937
-2 Sheets-Sheet 2
Patented Nov. 1, 1938
2,1 34,881
Jess Mitchell‘, St. Louis, Mo. ‘
Application May 26, 1931, Serial No. 144,784
1 Claim. (Cl. 257-202) ’
My invention has relation to improvements in ?ts snugly within the tube 4 and is of a length
air conditioning apparatus‘ and consists in the so that it extends from the inner edges of the
novel features‘of construction more fully set forth ducts III to an annular?ange [2 formed on the
in the speci?cation and pointed out in the claim. inner end of tube 4. Member I I has a diamet
The principal object of the invention is to pro
rically disposed partition l3 running through it
vide a compact unitary device‘for cooling or heat
from end to end ‘and a semicircular end wall l4
ing ‘and circulating the air within a room so as
between said partition and the periphery of said
to either lower or raise the temperature of said member II.
room air.
The partition l3 and end wall l4 form a con
It is a further object of the invention to pro
tainer within the member II in which ice I, or 10
vide such a device that may be manufactured at
other cooling medium, may be held. A cover
low cost and that may be readily moved from plate 15 is provided for said container, between
which and a cover plate l6 for the tube 4 there
These advantages, as well as others inherent
15 in the invention, will be better apparent from a
is disposed a coil spring IT to take up any play
detailed description thereof in connection with
when the motor M and fan F are operating.
When‘ the apparatus is used as an air cooler, the
ice container formed within the member II is
disposed at the top of the tube 4; but if it is
desired to use-the apparatus as an air heater,
this container-may be inverted and a suitable
heating element (not shown) disposed either
within it or on the partition I3,
The operation of my improved air conditioning
room to room as desired.
the accompanying drawings, in which:
Figure 1 is'a side elevation of my improved air
conditioning apparatus; Fig. 2 is an end elevation
looking toward the open end from which the air
discharges; Fig. 3 is a vertical transverse section
. taken on the line 3-3 of Fig. 1; Fig. 4 is a vertical
longitudinal section through the apparatus taken,
on the line 4-4 of Fig. 2; Fig. 5 is a vertical cross’
25 section taken on the line 5-—5 of Fig. 1; Fig. 6
is a side elevation of a fragment of the apparatus
showing a ?lter applied to the air inlet duct; and
Fig. 7' is a longitudinal sectional detail taken on
they line '!--1 of-Flg. 6.
between the parts so as to eliminate vibration 15
apparatus is as follows:
We will assume that the container of the mem
ber H is charged with ice ‘so that the apparatus
may be used as an air circulating device. The
motor M'is now started so as to rapidly rotate the
Referring to the drawings, i represents a cylin—
drical casing supported by feet 2, 2 on a suitable
fan F, the blades of which will force air outward— 30
ly through the space S into the room and draw
'base 3 on which a motor M is also mounted. the room air through the ducts l0 into the mem
concentrically disposed within the casing I there ber ll below the partition l3. As the air travels
is a tube 4 of smaller diameter so as to leave an through the member II, it will, of course, be
35 annular space S between said tube 4 and the cas
cooled by contact with the cool surfaces of the 35
ing l. The tube 4 stops short of a closure plate member ll through which the air is moved by
5 disposed over the end of casing I adjacent to the action of the fan F. Thus, we have a con
tinuous circulation of air through the ducts Hl,
‘ motor‘M so as to provide a space S’ for a fan
F securely ?xed on the motor shaft 6. The blades through the member II, and back through the
40 ‘I of the fan are ?at but have their outer edges
space S within the casing I from which the cooled 40
8 and inner edges 8 arcuate so as to follow the air is discharged into the room.
The cover plate 5 is removable, for which pur
contour of the casing l and-tube 4, respectively.
It will be observed (Figs. 1 and 4) that the inner pose I provide a radially disposed tapering open
edges 9 of the blades slightly overlap the adjacent ing l8 leading from the center thereof to the
45 end of tube 4, and the blades are pitched so that , periphery of the plate 5.
This opening l8 per
upon being rotated in the proper direction, they
will force air through’ the space S toward the
mits the cover plate to be disposed over the shaft
‘6 of the motor, after which a sliding gate i 9 may
open end thereof. The tube 4 is supported with
be slipped into the opening and held in place
by guide lugs 20, III, as well understood in the art.
A plurality of ‘spring clips 2|, 2| may be secured 50
adjacent to the inner end of the casing l for the
_in the casing l by a plurality (four in the present
instance) of ducts l0 ?ied at their inner ends in
the wall of tube 4 and at their outer ends in the
‘ casing I.
The side of each ‘duct toward the
.fan F'is V-shaped so~ as to offer a minimum of
resistance to the air that is forced through the
I‘ casing by the fan F. A cylindrical member ll
purpose‘ot engaging and holding in place the
cover plate 5.
' Referring to Figs. 6 and '1, 22 is an air perviousv
screen held in place on the end or the duct II 55
by a spring holder 23 shaped to ?t the outline
of the duct l0.
Having described my invention, I claim:
An air conditioning apparatus comprising a
cylindrical casing closed at one end, a. tube dis
tube being closed and having air inlet ducts lead
- ing through the casing wall, an air conditioning
device removably disposed within said tube, and a
fan in the space between the tube and the closed
end of the casing, said fan having blade-s oper
posed concentrically within the casing and spaced
ating between the cylindrical walls of the casing
from the walls thereof, one end of said tube be
and of the tube.
ing spaced from the closed end of the casing and
having an air outlet and the opposite end 0! the
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