US2055621A - Air conditioning device - Google Patents

Description

Sept. 29, 1936. E. A. CHAMBERLIN AIR CONDITIONING DEVICE Filed July 1, 1935 Patented Sept. 29, 1936 PATENT OFFICE AIR CONDITIONING DEVICE Earl A. Chamberlin, Cedar Rapids, Iowa, assignor to Chandler Company, Cedar Rapids, Iowa, a

corporation of Iowa Application July 1, 1935, Serial No. 29,234

3 Claims.

This invention relates to air conditioning means and has particular relation to an air flow control means particularly suitable for devices for removing pollen, dust and the like from air in or entering a room.

' In the treatment of hay fever it has been found that pollen, dust and moisture may be removed from the air in a closed space by blowing the air through screens which are adapted for removing the suspended particles of material from the air. Usually this is accomplished by blowing or drawing the air through passages, the walls of which will hold any particles which strike them. I have discovered, however, that it is not desirable that an be pumped directly into the room from the outside because such procedure is likely to subject the patient at times to a cold blast of outside air and, furthermore, that the pressure within the room is slightly raised which at times has a very marked detrimental effect on the patient. Furthermore, I have found that, although air passed through such a device may have as high as 95% of the foreign material removed, some of the material may remain in the air stream after it has passed through the device.

I have accordingly devised means for overcoming the objections outlined above and have provided in connection with a blower, means for controlling and recirculating air through the blower and have also devised an air conditioning means which may be placed in the window of an ordinary room such as found in hospitals, homes and the like.

It is therefore a general object of my invention to provide an air conditioning apparatus particularly devised for use as a depollenizer.

It is another general object of my invention to provide a portable air conditioning apparatus or depollenizer which may be placed in the window of a room or the like.

It is another object of my invention to provide an extremely simple and compact device of the above character, and one which may be readily controlled to draw in air from the outside or circulate air from the room through the apparatus, or mix the outside air with the air of the room and pass it through the apparatus as desired.

Other and further features and objects of the invention will be more apparent to those skilled in the art upon a considerationof the accompanying drawing and following specification, wherein is disclosed a single exemplary embodiment of the invention, with the understanding, however, that such changes may be made therein as fall within the scope of the appended claims, without departing from the spirit of the invention.

In said drawing:

Figure l is a plan view of a device constructed according to one embodiment of my invention as the device appears when in place in a window. A portion of the top of the device has been broken away to show the interior construction of the device.

Figure 2 is a view, partly in front elevation and partly in section, of the device taken along the line 2-2 of Figure 1.

Figure 3 is a more or less schematic diagram illustrating the position of the air flow control means for recirculating air from within the room;

and

Figure 4 is a diagrammatic view illustrating the position of the control means when air is brought in from outside the room.

Referring now more particularly to Figures l. and 2, a device constructed according to a preferred embodiment of my invention includes front and side walls, preferably of a single plate as illustrated at III, and a rear or outside wall, also a single plate as illustrated at l l. The inclosure so formed is closed at the bottom by means of a single plate l2 and at the top by a plate 43. The front portion of the plate I0 is perforated in three vertical strips as indicated at Illa, lflb, and H10, the wide central strip being for the purpose of permitting air to flow or be discharged from the device and the two side strips Illa. and lllc being for the purpose of admitting air from the room into the device.

The rear or outside plate H is provided with three sets of louvers indicated at Ila, Ho, and I lo, the two outside sets of louvers Ila and I I0 being for the purpose of admitting air from outside the room into side passageways, as hereinafter described, and the wide central louver II b being for the purpose of admitting air into the central portion of the device, also as hereinafter described. The louvers Ila, Nb, and He are preferably constructed by cutting out horizontal slots in the rear wall II and pushing out the metal above the slots to form elongated openings through the plate or rear wall I I, which openings are protected from rain and moisture by the projecting lips of metal.

The sides of the container or housing formed by plate I are provided with pairs of vertically disposed spaced angle irons or flanges l4 and I6 so disposed as to receive sheet metal strips I'I. These strips may be of varying widths so that the device, together with the strips fits snugly within the, guides l8 of various widths of windows, or the strips may be constructed of two or more parts adapted to slide one over the other in accordance with the usual practice in forming strips of this character.

The cover I 3 of the housing may be provided with horizontally and transversely extending angle iron flanges l3 for receiving the bottom strips of the window frame 20, and the bottom plates |2 may be provided with one or more downwardly extending adjustable knobs 2| adapted to rest on the outside window ledge to furnish additional support for the air conditioning device.

The interior of the housing of the air conditioning device is divided into three compartments, as indicated at 22, 23, and 24, by means of vertically extending partitions 26 and 21. The partitions 26 and 21 extend from front to rear and top to bottom of the device and, it may be observed by inspection, that the compartment 22 is in engagement with the outside air through louvers Ho and the inside of the room through the perforations ilic. In the same manner the compartment 24 is in communication with the outside air through louvers II a and with the inside of the room through perforations Ma. The larger central compartment 23 is in communicationwith the outside air through the longer louvers Nb and with the interior of the room through the perforations lob. Communication between the central compartment 23 and the side compartment 22 may be had through a vertically extending opening 28 in the partition 26 and with the compartment 24 through an opening 29 in'the partition 21. 4

The opening through the partition 26 may be closed by the door or flap 3| which is hinged to the rear portion 260. of partition 26, as indicated at 32, and the opening 23 may be closed by means of the door or flap 33 which is hinged to the rear portion 21a. of partition 21 as indicated at 34. Push rods 36 and 31 are pivotally engaged to the respective doors 3| and 33 by means of lips 38 and 33. These push rods 36 and 31 extend forwardly through suitable openings in the front wall of the cover l0 and are provided with knobs 4| and 42 at the outer ends for better manipulation of the push rods. Vertically and inwardly extending flanges 43 and 44 are engaged to the side walls of the housing l0 and when in the open position the doors 3| and 32 strike these flanges to close the chambers or passageways 22 and 24 at their outer ends.

The rear or outer ends 26a and 21a of partitions 26 and 21 are provided with inwardly and vertically extending flanges 46 and 41 spaced from the rear wall II with a spacing sufiicient to permit a relatively coarse filter screen 48 to be inserted in the channels 43 and 5| formed by the partitions 26a and 21a and flanges 46 and 41. Other inwardly and vertically extending flanges 43 are provided on the inner walls of partitions 28 and 2'! and these flanges are spaced in proper relationship from the front wall l0 to permit other channels to receive a filter plate 50 therein. I preferably employ a filter whose openings are blower, as for instance a blower consisting of the motor 5| and fan 62, the fan having a guard 53. This blower unit is' preferably located in the central passageway 23 and, of course, rotates in such a direction as to pull air in from the rear and drive it through the perforations Illb in the front of the housing.

In operation, when it is desired to replace the air within a room with filtered air, the doors 3| and 32 are closed as illustrated in Figure 4 and the motor 5| energized. With this condition of the device, air is drawn in from outside the room through the course filter 48 and is driven into the room through the fine filter 50. In this way the air is properly cleansed. The air within the room may'pass out through the passageways 22 and 24, as indicated by the arrows.

After the air previously in the room has been substantially replaced by air from the outside from which pollen and dust has been removed, the doors 3| and 33 in the partitions 26 and 21 may be opened and adjusted in such a manner that the passageways 22 and 24 are closed at the rear end, illustrated in Figure 3, and the air from within the room is drawn in through the side passageways 22 and 24 and passes into the central passageway 23 through the openings 28 and 23- and then is driven forwardly through the fine filter 50 and out into the room.

It is apparent that other combinations of positions of the doors 3| and 33 may be had. For instance one of the doors might be placed in the open position, as is the door 33 of Figure 1, while the other door 3| may be in closed position to close the opening 28. In this position a part of the air furnished to the room is brought in from outside the room and another part is air which has been drawn from within the room through passageway 34 and recirculated through filter 50. It is apparent that the air entering the room is brought in from outside through both filters or may be drawn into the device through the side passageways and forced outwardly into the room again through the fine filter.

While the present embodiment of the invention is particularly suitable as a depollenizer and for removing dust particles and the like from air brought in from outside a room it is quite apparent that the device might be set up inside the room and the air in the room would eventually be cleaned and particles removed therefrom. The device may find other uses as a'blower'for removing air from a room and it is apparent that modifications may be made by those skilled in the art. Such modifications may be made tween the respective openings in the housing, a 75 blower in one of the eways, the partitions being provided with openings therethrough and means for closing the openings for controlling the flow of air through the openings in the partition and the openings in the housing.

2. In an air conditioning device, a housing, the front walls of the housing having three openings therethrough exposed to air inside an enclosed space and the rear walls having three corresponding openings therethrough exposed to outside or atmospheric air, partitions disposed within the housing as to provide passageways in trout and rear between the respective openings, a blower in the central eway, means disposed in the partitions for controlling the flow oi air through the device so that air circulated may be either outside or inside air.

3. In an air conditioning device, a housing, the front walls of the housing having a plurality of openings therethrough adapted to be exposed to air inside an enclosed space and the rear walls having corresponding openings theretnrough adapted to be exposed to outside or atmospheric air, partitions disposed within the housing so as to provide'eways in front and rear between the respective opening a blower in one way. and means disposed in the partition for controlling the flow 0! air through the device so that air circulated may be either outside or inside air.

EARL A.:.

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